.
Thread 13 (Thread 0x7f2d63fff700 (LWP 2683)):
#0  0x00007f2da3bf2786 in futex_abstimed_wait_cancelable (private=<optimized out>, abstime=0x7f2d63ffe490, expected=0, futex_word=0x55a02390c544) at ../sysdeps/unix/sysv/linux/futex-internal.h:205
        __ret = -516
        oldtype = 0
        err = <optimized out>
#1  __pthread_cond_wait_common (abstime=0x7f2d63ffe490, mutex=0x55a02390c568, cond=0x55a02390c518) at pthread_cond_wait.c:539
        spin = 0
        buffer = {__routine = 0x7f2da3bf1e00 <__condvar_cleanup_waiting>, __arg = 0x7f2d63ffe410, __canceltype = 0, __prev = 0x0}
        cbuffer = {wseq = 349, cond = 0x55a02390c518, mutex = 0x55a02390c568, private = 0}
        err = <optimized out>
        g = 1
        flags = <optimized out>
        maxspin = 0
        signals = 0
        result = 0
        seq = 174
#2  __pthread_cond_timedwait (cond=cond@entry=0x55a02390c518, mutex=mutex@entry=0x55a02390c568, abstime=abstime@entry=0x7f2d63ffe490) at pthread_cond_wait.c:667
No locals.
#3  0x00007f2d97b396e9 in pt_TimedWait (cv=cv@entry=0x55a02390c518, ml=0x55a02390c568, timeout=timeout@entry=2333369556) at /build/virtualbox-SNwOtQ/virtualbox-5.2.4-dfsg/src/libs/xpcom18a4/nsprpub/pr/src/pthreads/ptsynch.c:267
        rv = <optimized out>
        now = {tv_sec = 1513790085, tv_usec = 931932}
        tmo = {tv_sec = 1516123455, tv_nsec = 487932000}
        ticks = <optimized out>
#4  0x00007f2d97b39b3c in VBoxNsprPR_WaitCondVar (cvar=0x55a02390c510, timeout=2333369556) at /build/virtualbox-SNwOtQ/virtualbox-5.2.4-dfsg/src/libs/xpcom18a4/nsprpub/pr/src/pthreads/ptsynch.c:394
        rv = <optimized out>
        thred = 0x7f2d50003f50
#5  0x00007f2d97b39dd9 in VBoxNsprPR_Wait (mon=mon@entry=0x55a02390c560, timeout=<optimized out>) at /build/virtualbox-SNwOtQ/virtualbox-5.2.4-dfsg/src/libs/xpcom18a4/nsprpub/pr/src/pthreads/ptsynch.c:571
        rv = -516
        saved_entries = 1
        saved_owner = 139832927975168
#6  0x00007f2d806921af in nsAutoMonitor::Wait (interval=<optimized out>, this=<synthetic pointer>) at /build/virtualbox-SNwOtQ/virtualbox-5.2.4-dfsg/src/libs/xpcom18a4/xpcom/threads/nsAutoLock.h:281
No locals.
#7  WaitTarget (aTarget=..., aTimeout=<optimized out>, aMsg=aMsg@entry=0x7f2d63ffe588, aSelector=aSelector@entry=0x7f2d80690952 <WaitMessageSelector(void*, ipcTargetData*, ipcMessage const*)>, aArg=aArg@entry=0x7f2d63ffe590) at /build/virtualbox-SNwOtQ/virtualbox-5.2.4-dfsg/src/libs/xpcom18a4/ipc/ipcd/client/src/ipcdclient.cpp:491
        t = <optimized out>
        td = {mRawPtr = 0x55a023917030}
        timeStart = <optimized out>
        timeEnd = 4294967295
        lastChecked = 0x0
        beforeLastChecked = <optimized out>
        rv = 2147500036
        mon = {<nsAutoLockBase> = {<No data fields>}, mMonitor = 0x55a02390c560, mLockCount = <optimized out>}
#8  0x00007f2d8069329a in IPC_WaitMessage (aSenderID=aSenderID@entry=4294967295, aTarget=..., aObserver=aObserver@entry=0x7f2d63ffe738, aConsumer=aConsumer@entry=0x7f2d63ffe730, aTimeout=aTimeout@entry=4294967295) at /build/virtualbox-SNwOtQ/virtualbox-5.2.4-dfsg/src/libs/xpcom18a4/ipc/ipcd/client/src/ipcdclient.cpp:1142
        data = {senderID = 4294967295, observer = 0x7f2d63ffe738, senderDead = 0}
        msg = 0x0
        rv = <optimized out>
#9  0x00007f2d806993ef in DConnectStub::CallMethod (this=0x55a0239c4ab0, aMethodIndex=<optimized out>, aInfo=0x55a0239587e0, aParams=0x7f2d63ffe7f0) at /build/virtualbox-SNwOtQ/virtualbox-5.2.4-dfsg/src/libs/xpcom18a4/ipc/ipcd/extensions/dconnect/src/ipcDConnectService.cpp:2656
        rv = 0
        es = {<nsCOMPtr_base> = {mRawPtr = 0x55a02392b530}, <No data fields>}
        em = {<nsCOMPtr_base> = {mRawPtr = 0x7f2d500027d0}, <No data fields>}
        dConnect = {mRawPtr = 0x55a0233bac00}
        i = <optimized out>
        writer = {mBuf = 0x7f2d50004490 "\003", mBufPtr = 0x7f2d500044a2 "", mBufEnd = 0x7f2d500044b0 "", mCapacity = 32, mError = 0}
        invoke = {<DConnectOp> = {opcode_major = 3 '\003', opcode_minor = 0 '\000', flags = 0, request_index = 169}, instance = 140627564042128, method_index = 36}
        wrappers = {_vptr.nsVoidArray = 0x7f2d97d84bb8 <vtable for nsVoidArray+16>, mImpl = 0x0}
        ipc_dmo_for_scopekDConnectTargetID = {mTarget = @0x7f2d806a00b0}
        completion = {<DConnectCompletion> = {<ipcIMessageObserver> = {<nsISupports> = {_vptr.nsISupports = 0x7f2d808a4f80 <vtable for DConnectInvokeCompletion+16>}, <No data fields>}, mSelector = {<ipcIMessageObserver> = {<nsISupports> = {_vptr.nsISupports = 0x7f2d808a4f50 <vtable for DConnectMsgSelector+16>}, <No data fields>}, mPeer = 2, mOpCodeMajor = 5 '\005', mRequestIndex = 169}}, mReply = 0x0, mParamsLen = 0}
        reader = {mBuf = 0x0, mBufEnd = 0x0, mBufPtr = 0x0, mError = 0}
#10 0x00007f2d97b1973d in PrepareAndDispatch (self=0x55a0239c4ab0, methodIndex=<optimized out>, args=<optimized out>, gpregs=0x7f2d63ffe8c0, fpregs=0x7f2d63ffe8f0) at /build/virtualbox-SNwOtQ/virtualbox-5.2.4-dfsg/src/libs/xpcom18a4/xpcom/reflect/xptcall/src/md/unix/xptcstubs_x86_64_linux.cpp:156
        paramBuffer = {{val = {i8 = 88 'X', i16 = -5800, i32 = 1677715800, i64 = 139832927971672, u8 = 88 'X', u16 = 59736, u32 = 1677715800, u64 = 139832927971672, f = 9.44146786e+21, d = 6.9086645868196636e-310, b = 1677715800, c = 88 'X', wc = 59736, p = 0x7f2d63ffe958}}, {val = {i8 = 0 '\000', i16 = 0, i32 = 0, i64 = 0, u8 = 0 '\000', u16 = 0, u32 = 0, u64 = 0, f = 0, d = 0, b = 0, c = 0 '\000', wc = 0, p = 0x0}} <repeats 15 times>}
        dispatchParams = 0x7f2d63ffe7f0
        iface_info = 0x7f2d6c006040
        info = 0x55a0239587e0
        paramCount = 1
        i = <optimized out>
        result = 2147500037
        ap = 0x7f2d63ffe940
        nr_gpr = <optimized out>
        nr_fpr = <optimized out>
        value = <optimized out>
#11 0x00007f2d97b18b13 in SharedStub () from /tmp/apport_sandbox_EjOPyj/usr/lib/virtualbox/VBoxXPCOM.so
No locals.
#12 0x00007f2d9900bf9c in CMedium::RefreshState (this=this@entry=0x7f2d63ffea48) at /build/virtualbox-SNwOtQ/virtualbox-5.2.4-dfsg/out/obj/VirtualBox/include/COMWrappers.cpp:18036
        aState = KMediumState_NotCreated
#13 0x00007f2d98d4a862 in UIMedium::blockAndQueryState (this=this@entry=0x7f2d63ffea40) at /build/virtualbox-SNwOtQ/virtualbox-5.2.4-dfsg/src/VBox/Frontends/VirtualBox/src/medium/UIMedium.cpp:132
No locals.
#14 0x00007f2d98d60a02 in UITaskMediumEnumeration::run (this=0x55a0239db850) at /build/virtualbox-SNwOtQ/virtualbox-5.2.4-dfsg/src/VBox/Frontends/VirtualBox/src/medium/UIMediumEnumerator.cpp:63
        medium = {m_type = UIMediumDefs::UIMediumType_DVD, m_medium = {<CInterface<IMedium, COMBaseWithEI>> = {<COMBaseWithEI> = {<COMBase> = {static sSocketListener = 0x55a02390dc40, mRC = 0}, mErrInfo = {mIsNull = true, mIsBasicAvailable = false, mIsFullAvailable = false, mResultCode = 0, mInterfaceID = {data1 = 0, data2 = 0, data3 = 0, data4 = "\000\000\000\000\000\000\000"}, mComponent = {static null = {<No data fields>}, d = 0x7f2d9749dec0 <QArrayData::shared_null>}, mText = {static null = {<No data fields>}, d = 0x7f2d9749dec0 <QArrayData::shared_null>}, m_pNext = 0x0, mInterfaceName = {static null = {<No data fields>}, d = 0x7f2d9749dec0 <QArrayData::shared_null>}, mCalleeIID = {data1 = 0, data2 = 0, data3 = 0, data4 = "\000\000\000\000\000\000\000"}, mCalleeName = {static null = {<No data fields>}, d = 0x7f2d9749dec0 <QArrayData::shared_null>}}}, _vptr.CInterface = 0x7f2d998dabf0 <vtable for CMedium+16>, mIface = 0x55a0239c4ab0}, <No data fields>}, m_state = KMediumState_NotCreated, m_result = {mRC = 0, mErrInfo = {mIsNull = true, mIsBasicAvailable = false, mIsFullAvailable = false, mResultCode = 0, mInterfaceID = {data1 = 0, data2 = 0, data3 = 0, data4 = "\000\000\000\000\000\000\000"}, mComponent = {static null = {<No data fields>}, d = 0x7f2d9749dec0 <QArrayData::shared_null>}, mText = {static null = {<No data fields>}, d = 0x7f2d9749dec0 <QArrayData::shared_null>}, m_pNext = 0x0, mInterfaceName = {static null = {<No data fields>}, d = 0x7f2d9749dec0 <QArrayData::shared_null>}, mCalleeIID = {data1 = 0, data2 = 0, data3 = 0, data4 = "\000\000\000\000\000\000\000"}, mCalleeName = {static null = {<No data fields>}, d = 0x7f2d9749dec0 <QArrayData::shared_null>}}}, m_strLastAccessError = {static null = {<No data fields>}, d = 0x7f2d9749dec0 <QArrayData::shared_null>}, m_strId = {static null = {<No data fields>}, d = 0x55a0239c6cc0}, m_strRootId = {static null = {<No data fields>}, d = 0x55a0239c6cc0}, m_strParentId = {static null = {<No data fields>}, d = 0x55a0231e58c0}, m_strKey = {static null = {<No data fields>}, d = 0x55a0239c6cc0}, m_strName = {static null = {<No data fields>}, d = 0x55a0233ebac0}, m_strLocation = {static null = {<No data fields>}, d = 0x55a02330f100}, m_strDescription = {static null = {<No data fields>}, d = 0x7f2d6c0062f0}, m_uSize = 0, m_uLogicalSize = 0, m_strSize = {static null = {<No data fields>}, d = 0x7f2d6c007240}, m_strLogicalSize = {static null = {<No data fields>}, d = 0x7f2d6c007240}, m_enmMediumType = KMediumType_Readonly, m_enmMediumVariant = KMediumVariant_Standard, m_strHardDiskType = {static null = {<No data fields>}, d = 0x7f2d9749dec0 <QArrayData::shared_null>}, m_strHardDiskFormat = {static null = {<No data fields>}, d = 0x7f2d9749dec0 <QArrayData::shared_null>}, m_fHasChildren = false, m_strStorageDetails = {static null = {<No data fields>}, d = 0x7f2d9749dec0 <QArrayData::shared_null>}, m_strEncryptionPasswordID = {static null = {<No data fields>}, d = 0x7f2d9749dec0 <QArrayData::shared_null>}, m_strUsage = {static null = {<No data fields>}, d = 0x7f2d9749dec0 <QArrayData::shared_null>}, m_strToolTip = {static null = {<No data fields>}, d = 0x55a0239cabe0}, m_machineIds = {<QListSpecialMethods<QString>> = {<No data fields>}, {p = {static shared_null = {ref = {atomic = {_q_value = {<std::__atomic_base<int>> = {static _S_alignment = 4, _M_i = -1}, <No data fields>}}}, alloc = 0, begin = 0, end = 0, array = {0x0}}, d = 0x7f2d9749ffa0 <QListData::shared_null>}, d = 0x7f2d9749ffa0 <QListData::shared_null>}}, m_curStateMachineIds = {<QListSpecialMethods<QString>> = {<No data fields>}, {p = {static shared_null = {ref = {atomic = {_q_value = {<std::__atomic_base<int>> = {static _S_alignment = 4, _M_i = -1}, <No data fields>}}}, alloc = 0, begin = 0, end = 0, array = {0x0}}, d = 0x7f2d9749ffa0 <QListData::shared_null>}, d = 0x7f2d9749ffa0 <QListData::shared_null>}}, m_noDiffs = {isSet = false, state = KMediumState_NotCreated, result = {mRC = 0, mErrInfo = {mIsNull = true, mIsBasicAvailable = false, mIsFullAvailable = false, mResultCode = 0, mInterfaceID = {data1 = 0, data2 = 0, data3 = 0, data4 = "\000\000\000\000\000\000\000"}, mComponent = {static null = {<No data fields>}, d = 0x7f2d9749dec0 <QArrayData::shared_null>}, mText = {static null = {<No data fields>}, d = 0x7f2d9749dec0 <QArrayData::shared_null>}, m_pNext = 0x0, mInterfaceName = {static null = {<No data fields>}, d = 0x7f2d9749dec0 <QArrayData::shared_null>}, mCalleeIID = {data1 = 0, data2 = 0, data3 = 0, data4 = "\000\000\000\000\000\000\000"}, mCalleeName = {static null = {<No data fields>}, d = 0x7f2d9749dec0 <QArrayData::shared_null>}}}, toolTip = {static null = {<No data fields>}, d = 0x7f2d9749dec0 <QArrayData::shared_null>}}, m_fHidden = false, m_fUsedByHiddenMachinesOnly = false, m_fReadOnly = false, m_fUsedInSnapshots = false, m_fHostDrive = false, m_fEncrypted = false, static m_sstrNullID = {static null = {<No data fields>}, d = 0x55a0231e58c0}, static m_sstrTable = {static null = <same as static member of an already seen type>, d = 0x55a0231e5d40}, static m_sstrRow = {static null = <same as static member of an already seen type>, d = 0x55a0231e4790}}
#15 0x00007f2d98d1f28a in UITask::start (this=0x55a0239db850) at /build/virtualbox-SNwOtQ/virtualbox-5.2.4-dfsg/src/VBox/Frontends/VirtualBox/src/globals/UIThreadPool.cpp:298
No locals.
#16 UIThreadWorker::run (this=0x55a0235e1500) at /build/virtualbox-SNwOtQ/virtualbox-5.2.4-dfsg/src/VBox/Frontends/VirtualBox/src/globals/UIThreadPool.cpp:322
        pTask = 0x55a0239db850
#17 0x00007f2d971d214d in QThreadPrivate::start (arg=0x55a0235e1500) at thread/qthread_unix.cpp:368
        __clframe = {__cancel_routine = 0x7f2d971d11e0 <QThreadPrivate::finish(void*)>, __cancel_arg = 0x55a0235e1500, __do_it = 1, __cancel_type = <optimized out>}
        thr = 0x55a0235e1500
        data = 0x55a023987450
#18 0x00007f2da3beb7fc in start_thread (arg=0x7f2d63fff700) at pthread_create.c:465
        pd = 0x7f2d63fff700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {139832927975168, -3585351358600854879, 140720591185870, 140720591185871, 139832927975168, 139832927975872, 3487055019633656481, 3487196313028772513}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimized out>
        pagesize_m1 = <optimized out>
        sp = <optimized out>
        freesize = <optimized out>
        __PRETTY_FUNCTION__ = "start_thread"
#19 0x00007f2da3714b0f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
No locals.
.
Thread 12 (Thread 0x7f2d637fe700 (LWP 2684)):
#0  0x00007f2da3bf2786 in futex_abstimed_wait_cancelable (private=<optimized out>, abstime=0x7f2d637fd490, expected=0, futex_word=0x55a02390c544) at ../sysdeps/unix/sysv/linux/futex-internal.h:205
        __ret = -516
        oldtype = 0
        err = <optimized out>
#1  __pthread_cond_wait_common (abstime=0x7f2d637fd490, mutex=0x55a02390c568, cond=0x55a02390c518) at pthread_cond_wait.c:539
        spin = 0
        buffer = {__routine = 0x7f2da3bf1e00 <__condvar_cleanup_waiting>, __arg = 0x7f2d637fd410, __canceltype = 0, __prev = 0x0}
        cbuffer = {wseq = 347, cond = 0x55a02390c518, mutex = 0x55a02390c568, private = 0}
        err = <optimized out>
        g = 1
        flags = <optimized out>
        maxspin = 0
        signals = 0
        result = 0
        seq = 173
#2  __pthread_cond_timedwait (cond=cond@entry=0x55a02390c518, mutex=mutex@entry=0x55a02390c568, abstime=abstime@entry=0x7f2d637fd490) at pthread_cond_wait.c:667
No locals.
#3  0x00007f2d97b396e9 in pt_TimedWait (cv=cv@entry=0x55a02390c518, ml=0x55a02390c568, timeout=timeout@entry=2333369556) at /build/virtualbox-SNwOtQ/virtualbox-5.2.4-dfsg/src/libs/xpcom18a4/nsprpub/pr/src/pthreads/ptsynch.c:267
        rv = <optimized out>
        now = {tv_sec = 1513790085, tv_usec = 931922}
        tmo = {tv_sec = 1516123455, tv_nsec = 487922000}
        ticks = <optimized out>
#4  0x00007f2d97b39b3c in VBoxNsprPR_WaitCondVar (cvar=0x55a02390c510, timeout=2333369556) at /build/virtualbox-SNwOtQ/virtualbox-5.2.4-dfsg/src/libs/xpcom18a4/nsprpub/pr/src/pthreads/ptsynch.c:394
        rv = <optimized out>
        thred = 0x7f2d54003950
#5  0x00007f2d97b39dd9 in VBoxNsprPR_Wait (mon=mon@entry=0x55a02390c560, timeout=<optimized out>) at /build/virtualbox-SNwOtQ/virtualbox-5.2.4-dfsg/src/libs/xpcom18a4/nsprpub/pr/src/pthreads/ptsynch.c:571
        rv = -516
        saved_entries = 1
        saved_owner = 139832919582464
#6  0x00007f2d806921af in nsAutoMonitor::Wait (interval=<optimized out>, this=<synthetic pointer>) at /build/virtualbox-SNwOtQ/virtualbox-5.2.4-dfsg/src/libs/xpcom18a4/xpcom/threads/nsAutoLock.h:281
No locals.
#7  WaitTarget (aTarget=..., aTimeout=<optimized out>, aMsg=aMsg@entry=0x7f2d637fd588, aSelector=aSelector@entry=0x7f2d80690952 <WaitMessageSelector(void*, ipcTargetData*, ipcMessage const*)>, aArg=aArg@entry=0x7f2d637fd590) at /build/virtualbox-SNwOtQ/virtualbox-5.2.4-dfsg/src/libs/xpcom18a4/ipc/ipcd/client/src/ipcdclient.cpp:491
        t = <optimized out>
        td = {mRawPtr = 0x55a023917030}
        timeStart = <optimized out>
        timeEnd = 4294967295
        lastChecked = 0x0
        beforeLastChecked = <optimized out>
        rv = 2147500036
        mon = {<nsAutoLockBase> = {<No data fields>}, mMonitor = 0x55a02390c560, mLockCount = <optimized out>}
#8  0x00007f2d8069329a in IPC_WaitMessage (aSenderID=aSenderID@entry=4294967295, aTarget=..., aObserver=aObserver@entry=0x7f2d637fd738, aConsumer=aConsumer@entry=0x7f2d637fd730, aTimeout=aTimeout@entry=4294967295) at /build/virtualbox-SNwOtQ/virtualbox-5.2.4-dfsg/src/libs/xpcom18a4/ipc/ipcd/client/src/ipcdclient.cpp:1142
        data = {senderID = 4294967295, observer = 0x7f2d637fd738, senderDead = 0}
        msg = 0x0
        rv = <optimized out>
#9  0x00007f2d806993ef in DConnectStub::CallMethod (this=0x55a0239c4460, aMethodIndex=<optimized out>, aInfo=0x55a0239587e0, aParams=0x7f2d637fd7f0) at /build/virtualbox-SNwOtQ/virtualbox-5.2.4-dfsg/src/libs/xpcom18a4/ipc/ipcd/extensions/dconnect/src/ipcDConnectService.cpp:2656
        rv = 0
        es = {<nsCOMPtr_base> = {mRawPtr = 0x55a02392b530}, <No data fields>}
        em = {<nsCOMPtr_base> = {mRawPtr = 0x7f2d540021d0}, <No data fields>}
        dConnect = {mRawPtr = 0x55a0233bac00}
        i = <optimized out>
        writer = {mBuf = 0x7f2d54003e90 "\003", mBufPtr = 0x7f2d54003ea2 "", mBufEnd = 0x7f2d54003eb0 "", mCapacity = 32, mError = 0}
        invoke = {<DConnectOp> = {opcode_major = 3 '\003', opcode_minor = 0 '\000', flags = 0, request_index = 170}, instance = 140627564041232, method_index = 36}
        wrappers = {_vptr.nsVoidArray = 0x7f2d97d84bb8 <vtable for nsVoidArray+16>, mImpl = 0x0}
        ipc_dmo_for_scopekDConnectTargetID = {mTarget = @0x7f2d806a00b0}
        completion = {<DConnectCompletion> = {<ipcIMessageObserver> = {<nsISupports> = {_vptr.nsISupports = 0x7f2d808a4f80 <vtable for DConnectInvokeCompletion+16>}, <No data fields>}, mSelector = {<ipcIMessageObserver> = {<nsISupports> = {_vptr.nsISupports = 0x7f2d808a4f50 <vtable for DConnectMsgSelector+16>}, <No data fields>}, mPeer = 2, mOpCodeMajor = 5 '\005', mRequestIndex = 170}}, mReply = 0x0, mParamsLen = 0}
        reader = {mBuf = 0x0, mBufEnd = 0x0, mBufPtr = 0x0, mError = 0}
#10 0x00007f2d97b1973d in PrepareAndDispatch (self=0x55a0239c4460, methodIndex=<optimized out>, args=<optimized out>, gpregs=0x7f2d637fd8c0, fpregs=0x7f2d637fd8f0) at /build/virtualbox-SNwOtQ/virtualbox-5.2.4-dfsg/src/libs/xpcom18a4/xpcom/reflect/xptcall/src/md/unix/xptcstubs_x86_64_linux.cpp:156
        paramBuffer = {{val = {i8 = 88 'X', i16 = -9896, i32 = 1669323096, i64 = 139832919578968, u8 = 88 'X', u16 = 55640, u32 = 1669323096, u64 = 139832919578968, f = 4.71958101e+21, d = 6.9086641721649914e-310, b = 1669323096, c = 88 'X', wc = 55640, p = 0x7f2d637fd958}}, {val = {i8 = 0 '\000', i16 = 0, i32 = 0, i64 = 0, u8 = 0 '\000', u16 = 0, u32 = 0, u64 = 0, f = 0, d = 0, b = 0, c = 0 '\000', wc = 0, p = 0x0}} <repeats 15 times>}
        dispatchParams = 0x7f2d637fd7f0
        iface_info = 0x7f2d6c006040
        info = 0x55a0239587e0
        paramCount = 1
        i = <optimized out>
        result = 2147500037
        ap = 0x7f2d637fd940
        nr_gpr = <optimized out>
        nr_fpr = <optimized out>
        value = <optimized out>
#11 0x00007f2d97b18b13 in SharedStub () from /tmp/apport_sandbox_EjOPyj/usr/lib/virtualbox/VBoxXPCOM.so
No locals.
#12 0x00007f2d9900bf9c in CMedium::RefreshState (this=this@entry=0x7f2d637fda48) at /build/virtualbox-SNwOtQ/virtualbox-5.2.4-dfsg/out/obj/VirtualBox/include/COMWrappers.cpp:18036
        aState = KMediumState_NotCreated
#13 0x00007f2d98d4a862 in UIMedium::blockAndQueryState (this=this@entry=0x7f2d637fda40) at /build/virtualbox-SNwOtQ/virtualbox-5.2.4-dfsg/src/VBox/Frontends/VirtualBox/src/medium/UIMedium.cpp:132
No locals.
#14 0x00007f2d98d60a02 in UITaskMediumEnumeration::run (this=0x55a023469f80) at /build/virtualbox-SNwOtQ/virtualbox-5.2.4-dfsg/src/VBox/Frontends/VirtualBox/src/medium/UIMediumEnumerator.cpp:63
        medium = {m_type = UIMediumDefs::UIMediumType_HardDisk, m_medium = {<CInterface<IMedium, COMBaseWithEI>> = {<COMBaseWithEI> = {<COMBase> = {static sSocketListener = 0x55a02390dc40, mRC = 0}, mErrInfo = {mIsNull = true, mIsBasicAvailable = false, mIsFullAvailable = false, mResultCode = 0, mInterfaceID = {data1 = 0, data2 = 0, data3 = 0, data4 = "\000\000\000\000\000\000\000"}, mComponent = {static null = {<No data fields>}, d = 0x7f2d9749dec0 <QArrayData::shared_null>}, mText = {static null = {<No data fields>}, d = 0x7f2d9749dec0 <QArrayData::shared_null>}, m_pNext = 0x0, mInterfaceName = {static null = {<No data fields>}, d = 0x7f2d9749dec0 <QArrayData::shared_null>}, mCalleeIID = {data1 = 0, data2 = 0, data3 = 0, data4 = "\000\000\000\000\000\000\000"}, mCalleeName = {static null = {<No data fields>}, d = 0x7f2d9749dec0 <QArrayData::shared_null>}}}, _vptr.CInterface = 0x7f2d998dabf0 <vtable for CMedium+16>, mIface = 0x55a0239c4460}, <No data fields>}, m_state = KMediumState_NotCreated, m_result = {mRC = 0, mErrInfo = {mIsNull = true, mIsBasicAvailable = false, mIsFullAvailable = false, mResultCode = 0, mInterfaceID = {data1 = 0, data2 = 0, data3 = 0, data4 = "\000\000\000\000\000\000\000"}, mComponent = {static null = {<No data fields>}, d = 0x7f2d9749dec0 <QArrayData::shared_null>}, mText = {static null = {<No data fields>}, d = 0x7f2d9749dec0 <QArrayData::shared_null>}, m_pNext = 0x0, mInterfaceName = {static null = {<No data fields>}, d = 0x7f2d9749dec0 <QArrayData::shared_null>}, mCalleeIID = {data1 = 0, data2 = 0, data3 = 0, data4 = "\000\000\000\000\000\000\000"}, mCalleeName = {static null = {<No data fields>}, d = 0x7f2d9749dec0 <QArrayData::shared_null>}}}, m_strLastAccessError = {static null = {<No data fields>}, d = 0x7f2d9749dec0 <QArrayData::shared_null>}, m_strId = {static null = {<No data fields>}, d = 0x55a0239c2ec0}, m_strRootId = {static null = {<No data fields>}, d = 0x55a0239c2ec0}, m_strParentId = {static null = {<No data fields>}, d = 0x55a0231e58c0}, m_strKey = {static null = {<No data fields>}, d = 0x55a0239c2ec0}, m_strName = {static null = {<No data fields>}, d = 0x7f2d6c004ba0}, m_strLocation = {static null = {<No data fields>}, d = 0x55a0239cf3f0}, m_strDescription = {static null = {<No data fields>}, d = 0x7f2d6c0060e0}, m_uSize = 0, m_uLogicalSize = 0, m_strSize = {static null = {<No data fields>}, d = 0x7f2d88009950}, m_strLogicalSize = {static null = {<No data fields>}, d = 0x7f2d88009950}, m_enmMediumType = KMediumType_Normal, m_enmMediumVariant = KMediumVariant_Standard, m_strHardDiskType = {static null = {<No data fields>}, d = 0x7f2d6c006110}, m_strHardDiskFormat = {static null = {<No data fields>}, d = 0x7f2d6c006250}, m_fHasChildren = false, m_strStorageDetails = {static null = {<No data fields>}, d = 0x7f2d88009ed0}, m_strEncryptionPasswordID = {static null = {<No data fields>}, d = 0x7f2d9749dec0 <QArrayData::shared_null>}, m_strUsage = {static null = {<No data fields>}, d = 0x7f2d6c0069a0}, m_strToolTip = {static null = {<No data fields>}, d = 0x55a0239d04f0}, m_machineIds = {<QListSpecialMethods<QString>> = {<No data fields>}, {p = {static shared_null = {ref = {atomic = {_q_value = {<std::__atomic_base<int>> = {static _S_alignment = 4, _M_i = -1}, <No data fields>}}}, alloc = 0, begin = 0, end = 0, array = {0x0}}, d = 0x55a0236857a0}, d = 0x55a0236857a0}}, m_curStateMachineIds = {<QListSpecialMethods<QString>> = {<No data fields>}, {p = {static shared_null = {ref = {atomic = {_q_value = {<std::__atomic_base<int>> = {static _S_alignment = 4, _M_i = -1}, <No data fields>}}}, alloc = 0, begin = 0, end = 0, array = {0x0}}, d = 0x7f2d6c006e10}, d = 0x7f2d6c006e10}}, m_noDiffs = {isSet = false, state = KMediumState_NotCreated, result = {mRC = 0, mErrInfo = {mIsNull = true, mIsBasicAvailable = false, mIsFullAvailable = false, mResultCode = 0, mInterfaceID = {data1 = 0, data2 = 0, data3 = 0, data4 = "\000\000\000\000\000\000\000"}, mComponent = {static null = {<No data fields>}, d = 0x7f2d9749dec0 <QArrayData::shared_null>}, mText = {static null = {<No data fields>}, d = 0x7f2d9749dec0 <QArrayData::shared_null>}, m_pNext = 0x0, mInterfaceName = {static null = {<No data fields>}, d = 0x7f2d9749dec0 <QArrayData::shared_null>}, mCalleeIID = {data1 = 0, data2 = 0, data3 = 0, data4 = "\000\000\000\000\000\000\000"}, mCalleeName = {static null = {<No data fields>}, d = 0x7f2d9749dec0 <QArrayData::shared_null>}}}, toolTip = {static null = {<No data fields>}, d = 0x7f2d9749dec0 <QArrayData::shared_null>}}, m_fHidden = false, m_fUsedByHiddenMachinesOnly = false, m_fReadOnly = false, m_fUsedInSnapshots = false, m_fHostDrive = false, m_fEncrypted = false, static m_sstrNullID = {static null = {<No data fields>}, d = 0x55a0231e58c0}, static m_sstrTable = {static null = <same as static member of an already seen type>, d = 0x55a0231e5d40}, static m_sstrRow = {static null = <same as static member of an already seen type>, d = 0x55a0231e4790}}
#15 0x00007f2d98d1f28a in UITask::start (this=0x55a023469f80) at /build/virtualbox-SNwOtQ/virtualbox-5.2.4-dfsg/src/VBox/Frontends/VirtualBox/src/globals/UIThreadPool.cpp:298
No locals.
#16 UIThreadWorker::run (this=0x55a0239c85a0) at /build/virtualbox-SNwOtQ/virtualbox-5.2.4-dfsg/src/VBox/Frontends/VirtualBox/src/globals/UIThreadPool.cpp:322
        pTask = 0x55a023469f80
#17 0x00007f2d971d214d in QThreadPrivate::start (arg=0x55a0239c85a0) at thread/qthread_unix.cpp:368
        __clframe = {__cancel_routine = 0x7f2d971d11e0 <QThreadPrivate::finish(void*)>, __cancel_arg = 0x55a0239c85a0, __do_it = 1, __cancel_type = <optimized out>}
        thr = 0x55a0239c85a0
        data = 0x55a02398c960
#18 0x00007f2da3beb7fc in start_thread (arg=0x7f2d637fe700) at pthread_create.c:465
        pd = 0x7f2d637fe700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {139832919582464, -3585351358600854879, 140720591185870, 140720591185871, 139832919582464, 139832919583168, 3487056119682155169, 3487196313028772513}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimized out>
        pagesize_m1 = <optimized out>
        sp = <optimized out>
        freesize = <optimized out>
        __PRETTY_FUNCTION__ = "start_thread"
#19 0x00007f2da3714b0f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
No locals.
.
Thread 11 (Thread 0x7f2d73ded700 (LWP 2654)):
#0  0x00007f2da3708901 in __GI___poll (fds=fds@entry=0x7f2d73decbd0, nfds=nfds@entry=2, timeout=timeout@entry=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
        resultvar = 18446744073709551100
        sc_cancel_oldtype = 0
#1  0x00007f2d97b36abf in poll (__timeout=-1, __nfds=2, __fds=0x7f2d73decbd0) at /usr/include/x86_64-linux-gnu/bits/poll2.h:46
No locals.
#2  _pr_poll_with_poll (pds=pds@entry=0x55a02390ab58, npds=npds@entry=2, timeout=timeout@entry=4294967295) at /build/virtualbox-SNwOtQ/virtualbox-5.2.4-dfsg/src/libs/xpcom18a4/nsprpub/pr/src/pthreads/ptio.c:3906
        stack_syspoll = {{fd = 25, events = 1, revents = 0}, {fd = 26, events = 1, revents = 0}, {fd = 3080291, events = 73, revents = 83}, {fd = 3080271, events = 85, revents = 98}, {fd = 7209077, events = 116, revents = 117}, {fd = 4522016, events = 100, revents = 117}, {fd = 7667810, events = 110, revents = 116}, {fd = 2097269, events = 85, revents = 98}, {fd = 7209077, events = 116, revents = 117}, {fd = 4653101, events = 110, revents = 111}, {fd = 6619245, events = 47, revents = 101}, {fd = 7667812, events = 98, revents = 117}, {fd = 7602286, events = 117, revents = 45}, {fd = 3276849, events = 46, revents = 48}, {fd = 3014708, events = 52, revents = 45}, {fd = 7733348, events = 100, revents = 45}, {fd = 7143521, events = 100, revents = 54}, {fd = 3014708, events = 105, revents = 115}, {fd = 2883695, events = 47, revents = 109}, {fd = 6553701, events = 105, revents = 97}, {fd = 7143471, events = 105, revents = 115}, {fd = 6553645, events = 111, revents = 99}, {fd = 4784175, events = 83, revents = 79}, {fd = 5570607, events = 98, revents = 117}, {fd = 7602286, events = 117, revents = 32}, {fd = 6553669, events = 117, revents = 98}, {fd = 7209077, events = 116, revents = 117}, {fd = 5570592, events = 98, revents = 117}, {fd = 7602286, events = 117, revents = 45}, {fd = 7209031, events = 111, revents = 109}, {fd = 3080293, events = 101, revents = 100}, {fd = 6422645, events = 117, revents = 110}, {fd = 7667828, events = 45, revents = 49}, {fd = 3014708, events = 48, revents = 52}, {fd = 6553645, events = 118, revents = 100}, {fd = -1750301232, events = 32557, revents = 0}, {fd = 0, events = 0, revents = 0}, {fd = -1547771170, events = 32557, revents = 0}, {fd = 596685576, events = 0, revents = 0}, {fd = -1547738285, events = 32557, revents = 0}, {fd = -1547765329, events = 32557, revents = 0}, {fd = 78, events = 0, revents = 0}, {fd = 596683600, events = 21920, revents = 0}, {fd = 0, events = 0, revents = 0}, {fd = 78, events = 0, revents = 0}, {fd = 593842016, events = 21920, revents = 0}, {fd = 1409296896, events = 32557, revents = 0}, {fd = -1749846749, events = 32557, revents = 0}, {fd = 0, events = 32557, revents = 0}, {fd = 1811965744, events = -1, revents = -1}, {fd = 0, events = 0, revents = 0}, {fd = 1811942272, events = 32557, revents = 0}, {fd = 1342194880, events = 32557, revents = 0}, {fd = 472203520, events = 838, revents = 17364}, {fd = 596683712, events = 21920, revents = 0}, {fd = 472203520, events = 838, revents = 17364}, {fd = 0, events = 0, revents = 0}, {fd = 596683600, events = 21920, revents = 0}, {fd = 0, events = 0, revents = 0}, {fd = 0, events = 0, revents = 0}, {fd = 1409302208, events = 32557, revents = 0}, {fd = 596683608, events = 21920, revents = 0}, {fd = -2147418113, events = 0, revents = 0}, {fd = -1553402882, events = 32557, revents = 0}}
        syspoll = 0x7f2d73decbd0
        index = <optimized out>
        msecs = -1
        ready = <optimized out>
        start = 6881326
        elapsed = <optimized out>
        remaining = <optimized out>
#3  0x00007f2d97b38938 in VBoxNsprPR_Poll (pds=pds@entry=0x55a02390ab58, npds=npds@entry=2, timeout=timeout@entry=4294967295) at /build/virtualbox-SNwOtQ/virtualbox-5.2.4-dfsg/src/libs/xpcom18a4/nsprpub/pr/src/pthreads/ptio.c:4308
No locals.
#4  0x00007f2d8069e6e0 in ConnThread (arg=0x55a02390ab50) at /build/virtualbox-SNwOtQ/virtualbox-5.2.4-dfsg/src/libs/xpcom18a4/ipc/ipcd/client/src/ipcConnectionUnix.cpp:342
        num = <optimized out>
        rv = 0
        s = 0x55a02390ab50
#5  0x00007f2d97b3a92d in _pt_root (arg=0x55a02390c800) at /build/virtualbox-SNwOtQ/virtualbox-5.2.4-dfsg/src/libs/xpcom18a4/nsprpub/pr/src/pthreads/ptthread.c:224
        thred = 0x55a02390c800
        detached = 0
#6  _pt_iprt_root (Thread=<optimized out>, pvUser=0x55a02390c800) at /build/virtualbox-SNwOtQ/virtualbox-5.2.4-dfsg/src/libs/xpcom18a4/nsprpub/pr/src/pthreads/ptthread.c:272
        thred = 0x55a02390c800
#7  0x00007f2da3267c0c in rtThreadMain (pThread=pThread@entry=0x55a02390c970, NativeThread=NativeThread@entry=139833194239744, pszThreadName=pszThreadName@entry=0x55a02390d250 "nspr-1") at /build/virtualbox-SNwOtQ/virtualbox-5.2.4-dfsg/src/VBox/Runtime/common/misc/thread.cpp:719
        rc = <optimized out>
#8  0x00007f2da3300a0b in rtThreadNativeMain (pvArgs=0x55a02390c970) at /build/virtualbox-SNwOtQ/virtualbox-5.2.4-dfsg/src/VBox/Runtime/r3/posix/thread-posix.cpp:327
        pThread = 0x55a02390c970
        Self = 139833194239744
        rc = <optimized out>
        __PRETTY_FUNCTION__ = "void* rtThreadNativeMain(void*)"
#9  0x00007f2da3beb7fc in start_thread (arg=0x7f2d73ded700) at pthread_create.c:465
        pd = 0x7f2d73ded700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {139833194239744, -3585351358600854879, 140720591160910, 140720591160911, 139833194239744, 139833194240448, 3487090488547328673, 3487196313028772513}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimized out>
        pagesize_m1 = <optimized out>
        sp = <optimized out>
        freesize = <optimized out>
        __PRETTY_FUNCTION__ = "start_thread"
#10 0x00007f2da3714b0f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
No locals.
.
Thread 10 (Thread 0x7f2d9a12c700 (LWP 2640)):
#0  0x00007f2da3708901 in __GI___poll (fds=fds@entry=0x7f2d9a12bd78, nfds=nfds@entry=1, timeout=timeout@entry=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
        resultvar = 18446744073709551100
        sc_cancel_oldtype = 0
#1  0x00007f2d98768747 in poll (__timeout=-1, __nfds=1, __fds=0x7f2d9a12bd78) at /usr/include/x86_64-linux-gnu/bits/poll2.h:46
No locals.
#2  _xcb_conn_wait (c=c@entry=0x55a0232ff240, cond=cond@entry=0x55a0232ff280, vector=vector@entry=0x0, count=count@entry=0x0) at ../../src/xcb_conn.c:479
        ret = <optimized out>
        fd = {fd = 7, events = 1, revents = 0}
#3  0x00007f2d9876a53a in xcb_wait_for_event (c=0x55a0232ff240) at ../../src/xcb_in.c:693
No locals.
#4  0x00007f2d9212d029 in QXcbEventReader::run (this=0x55a023309ec0) at qxcbconnection.cpp:1330
        event = <optimized out>
#5  0x00007f2d971d214d in QThreadPrivate::start (arg=0x55a023309ec0) at thread/qthread_unix.cpp:368
        __clframe = {__cancel_routine = 0x7f2d971d11e0 <QThreadPrivate::finish(void*)>, __cancel_arg = 0x55a023309ec0, __do_it = 1, __cancel_type = <optimized out>}
        thr = 0x55a023309ec0
        data = 0x55a0232ef760
#6  0x00007f2da3beb7fc in start_thread (arg=0x7f2d9a12c700) at pthread_create.c:465
        pd = 0x7f2d9a12c700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {139833835177728, -3585351358600854879, 140720591186990, 140720591186991, 139833835177728, 17, 3487318599092257441, 3487196313028772513}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimized out>
        pagesize_m1 = <optimized out>
        sp = <optimized out>
        freesize = <optimized out>
        __PRETTY_FUNCTION__ = "start_thread"
#7  0x00007f2da3714b0f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
No locals.
.
Thread 9 (Thread 0x7f2d72aac700 (LWP 2678)):
#0  0x00007f2da3bf2786 in futex_abstimed_wait_cancelable (private=<optimized out>, abstime=0x7f2d72aabda0, expected=0, futex_word=0x55a0239497e8) at ../sysdeps/unix/sysv/linux/futex-internal.h:205
        __ret = -516
        oldtype = 0
        err = <optimized out>
#1  __pthread_cond_wait_common (abstime=0x7f2d72aabda0, mutex=0x55a0239497f0, cond=0x55a0239497c0) at pthread_cond_wait.c:539
        spin = 0
        buffer = {__routine = 0x7f2da3bf1e00 <__condvar_cleanup_waiting>, __arg = 0x7f2d72aabd20, __canceltype = 1923792288, __prev = 0x0}
        cbuffer = {wseq = 0, cond = 0x55a0239497c0, mutex = 0x55a0239497f0, private = 0}
        err = <optimized out>
        g = 0
        flags = <optimized out>
        maxspin = 0
        signals = 0
        result = 0
        seq = 0
#2  __pthread_cond_timedwait (cond=cond@entry=0x55a0239497c0, mutex=mutex@entry=0x55a0239497f0, abstime=abstime@entry=0x7f2d72aabda0) at pthread_cond_wait.c:667
No locals.
#3  0x00007f2da33038a6 in rtSemEventWait (fAutoResume=true, cMillies=15000, hEventSem=0x55a0239497c0) at /build/virtualbox-SNwOtQ/virtualbox-5.2.4-dfsg/src/VBox/Runtime/r3/linux/../posix/semevent-posix.cpp:465
        hThreadSelf = 0x55a0239362d0
        ts = {tv_sec = 1513790100, tv_nsec = 693377394}
        rc = <optimized out>
        pThis = 0x55a0239497c0
        u32 = <optimized out>
#4  RTSemEventWait (hEventSem=hEventSem@entry=0x55a0239497c0, cMillies=cMillies@entry=15000) at /build/virtualbox-SNwOtQ/virtualbox-5.2.4-dfsg/src/VBox/Runtime/r3/linux/../posix/semevent-posix.cpp:482
No locals.
#5  0x00007f2d72dd6767 in VirtualBoxClient::SVCWatcherThread (ThreadSelf=<optimized out>, pvUser=0x55a023639fe0) at /build/virtualbox-SNwOtQ/virtualbox-5.2.4-dfsg/src/VBox/Main/src-client/VirtualBoxClientImpl.cpp:587
        sem = 0x55a0239497c0
        cMillies = 30000
        vrc = <optimized out>
#6  0x00007f2da3267c0c in rtThreadMain (pThread=pThread@entry=0x55a0239362d0, NativeThread=NativeThread@entry=139833174050560, pszThreadName=pszThreadName@entry=0x55a023936bb0 "VBoxSVCWatcher") at /build/virtualbox-SNwOtQ/virtualbox-5.2.4-dfsg/src/VBox/Runtime/common/misc/thread.cpp:719
        rc = <optimized out>
#7  0x00007f2da3300a0b in rtThreadNativeMain (pvArgs=0x55a0239362d0) at /build/virtualbox-SNwOtQ/virtualbox-5.2.4-dfsg/src/VBox/Runtime/r3/posix/thread-posix.cpp:327
        pThread = 0x55a0239362d0
        Self = 139833174050560
        rc = <optimized out>
        __PRETTY_FUNCTION__ = "void* rtThreadNativeMain(void*)"
#8  0x00007f2da3beb7fc in start_thread (arg=0x7f2d72aac700) at pthread_create.c:465
        pd = 0x7f2d72aac700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {139833174050560, -3585351358600854879, 140720591180398, 140720591180399, 139833174050560, 139833174051264, 3487088732442575521, 3487196313028772513}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimized out>
        pagesize_m1 = <optimized out>
        sp = <optimized out>
        freesize = <optimized out>
        __PRETTY_FUNCTION__ = "start_thread"
#9  0x00007f2da3714b0f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
No locals.
.
Thread 8 (Thread 0x7f2d823f2700 (LWP 2643)):
#0  0x00007f2da3708901 in __GI___poll (fds=0x7f2d7800f720, nfds=4, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
        resultvar = 18446744073709551100
        sc_cancel_oldtype = 0
#1  0x00007f2d9347b169 in g_main_context_poll (priority=<optimized out>, n_fds=4, fds=0x7f2d7800f720, timeout=<optimized out>, context=0x7f2d78000c00) at ../../../../glib/gmain.c:4187
        ret = <optimized out>
        errsv = <optimized out>
        poll_func = 0x7f2d9348a640 <g_poll>
#2  g_main_context_iterate (context=context@entry=0x7f2d78000c00, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../../../../glib/gmain.c:3881
        max_priority = 2147483647
        timeout = -1
        some_ready = <optimized out>
        nfds = 4
        allocated_nfds = 4
        fds = 0x7f2d7800f720
#3  0x00007f2d9347b27c in g_main_context_iteration (context=0x7f2d78000c00, may_block=may_block@entry=1) at ../../../../glib/gmain.c:3947
        retval = <optimized out>
#4  0x00007f2d9740900f in QEventDispatcherGlib::processEvents (this=0x7f2d78000b30, flags=...) at kernel/qeventdispatcher_glib.cpp:423
        d = 0x7f2d78000b50
        canWait = true
        savedFlags = {i = 0}
        result = <optimized out>
#5  0x00007f2d973ae1ca in QEventLoop::exec (this=this@entry=0x7f2d823f1e40, flags=..., flags@entry=...) at kernel/qeventloop.cpp:212
        d = 0x7f2d78001970
        locker = {val = 94146275040016}
        ref = {d = 0x7f2d78001970, locker = @0x7f2d823f1dc8, exceptionCaught = true}
#6  0x00007f2d971cd27a in QThread::exec (this=this@entry=0x7f2d91eacd60 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at thread/qthread.cpp:515
        d = 0x55a02347daa0
        locker = {val = 94146275040016}
        eventLoop = {<QObject> = {_vptr.QObject = 0x7f2d978684c8 <vtable for QEventLoop+16>, static staticMetaObject = {d = {superdata = 0x0, stringdata = 0x7f2d9755b720 <qt_meta_stringdata_QObject>, data = 0x7f2d9755b600 <qt_meta_data_QObject>, static_metacall = 0x7f2d973e6630 <QObject::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, extradata = 0x0}}, d_ptr = {d = 0x7f2d78001970}, static staticQtMetaObject = {d = {superdata = 0x0, stringdata = 0x7f2d9755e3a0 <qt_meta_stringdata_Qt>, data = 0x7f2d9755b840 <qt_meta_data_Qt>, static_metacall = 0x0, relatedMetaObjects = 0x0, extradata = 0x0}}}, static staticMetaObject = {d = {superdata = 0x7f2d97860a00 <QObject::staticMetaObject>, stringdata = 0x7f2d97556300 <qt_meta_stringdata_QEventLoop>, data = 0x7f2d975562a0 <qt_meta_data_QEventLoop>, static_metacall = 0x7f2d973adec0 <QEventLoop::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, extradata = 0x0}}}
        returnCode = <optimized out>
#7  0x00007f2d91c39e45 in QDBusConnectionManager::run (this=0x7f2d91eacd60 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at qdbusconnection.cpp:178
        locker = <optimized out>
#8  0x00007f2d971d214d in QThreadPrivate::start (arg=0x7f2d91eacd60 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at thread/qthread_unix.cpp:368
        __clframe = {__cancel_routine = 0x7f2d971d11e0 <QThreadPrivate::finish(void*)>, __cancel_arg = 0x7f2d91eacd60 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>, __do_it = 1, __cancel_type = <optimized out>}
        thr = 0x7f2d91eacd60 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>
        data = 0x55a023417c50
#9  0x00007f2da3beb7fc in start_thread (arg=0x7f2d823f2700) at pthread_create.c:465
        pd = 0x7f2d823f2700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {139833435432704, -3585351358600854879, 140720591187166, 140720591187167, 139833435432704, 139833435433408, 3487265578794730145, 3487196313028772513}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimized out>
        pagesize_m1 = <optimized out>
        sp = <optimized out>
        freesize = <optimized out>
        __PRETTY_FUNCTION__ = "start_thread"
#10 0x00007f2da3714b0f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
No locals.
.
Thread 7 (Thread 0x7f2d70d4b700 (LWP 2682)):
#0  0x00007f2da3bf2786 in futex_abstimed_wait_cancelable (private=<optimized out>, abstime=0x7f2d70d4a490, expected=0, futex_word=0x55a02390c544) at ../sysdeps/unix/sysv/linux/futex-internal.h:205
        __ret = -516
        oldtype = 0
        err = <optimized out>
#1  __pthread_cond_wait_common (abstime=0x7f2d70d4a490, mutex=0x55a02390c568, cond=0x55a02390c518) at pthread_cond_wait.c:539
        spin = 0
        buffer = {__routine = 0x7f2da3bf1e00 <__condvar_cleanup_waiting>, __arg = 0x7f2d70d4a410, __canceltype = 596685576, __prev = 0x0}
        cbuffer = {wseq = 345, cond = 0x55a02390c518, mutex = 0x55a02390c568, private = 0}
        err = <optimized out>
        g = 1
        flags = <optimized out>
        maxspin = 0
        signals = 0
        result = 0
        seq = 172
#2  __pthread_cond_timedwait (cond=cond@entry=0x55a02390c518, mutex=mutex@entry=0x55a02390c568, abstime=abstime@entry=0x7f2d70d4a490) at pthread_cond_wait.c:667
No locals.
#3  0x00007f2d97b396e9 in pt_TimedWait (cv=cv@entry=0x55a02390c518, ml=0x55a02390c568, timeout=timeout@entry=2333369563) at /build/virtualbox-SNwOtQ/virtualbox-5.2.4-dfsg/src/libs/xpcom18a4/nsprpub/pr/src/pthreads/ptsynch.c:267
        rv = <optimized out>
        now = {tv_sec = 1513790085, tv_usec = 924218}
        tmo = {tv_sec = 1516123455, tv_nsec = 487218000}
        ticks = <optimized out>
#4  0x00007f2d97b39b3c in VBoxNsprPR_WaitCondVar (cvar=0x55a02390c510, timeout=2333369563) at /build/virtualbox-SNwOtQ/virtualbox-5.2.4-dfsg/src/libs/xpcom18a4/nsprpub/pr/src/pthreads/ptsynch.c:394
        rv = <optimized out>
        thred = 0x7f2d58002cf0
#5  0x00007f2d97b39dd9 in VBoxNsprPR_Wait (mon=mon@entry=0x55a02390c560, timeout=<optimized out>) at /build/virtualbox-SNwOtQ/virtualbox-5.2.4-dfsg/src/libs/xpcom18a4/nsprpub/pr/src/pthreads/ptsynch.c:571
        rv = -516
        saved_entries = 1
        saved_owner = 139833143244544
#6  0x00007f2d806921af in nsAutoMonitor::Wait (interval=<optimized out>, this=<synthetic pointer>) at /build/virtualbox-SNwOtQ/virtualbox-5.2.4-dfsg/src/libs/xpcom18a4/xpcom/threads/nsAutoLock.h:281
No locals.
#7  WaitTarget (aTarget=..., aTimeout=<optimized out>, aMsg=aMsg@entry=0x7f2d70d4a588, aSelector=aSelector@entry=0x7f2d80690952 <WaitMessageSelector(void*, ipcTargetData*, ipcMessage const*)>, aArg=aArg@entry=0x7f2d70d4a590) at /build/virtualbox-SNwOtQ/virtualbox-5.2.4-dfsg/src/libs/xpcom18a4/ipc/ipcd/client/src/ipcdclient.cpp:491
        t = <optimized out>
        td = {mRawPtr = 0x55a023917030}
        timeStart = <optimized out>
        timeEnd = 4294967295
        lastChecked = 0x0
        beforeLastChecked = <optimized out>
        rv = 2147500036
        mon = {<nsAutoLockBase> = {<No data fields>}, mMonitor = 0x55a02390c560, mLockCount = <optimized out>}
#8  0x00007f2d8069329a in IPC_WaitMessage (aSenderID=aSenderID@entry=4294967295, aTarget=..., aObserver=aObserver@entry=0x7f2d70d4a738, aConsumer=aConsumer@entry=0x7f2d70d4a730, aTimeout=aTimeout@entry=4294967295) at /build/virtualbox-SNwOtQ/virtualbox-5.2.4-dfsg/src/libs/xpcom18a4/ipc/ipcd/client/src/ipcdclient.cpp:1142
        data = {senderID = 4294967295, observer = 0x7f2d70d4a738, senderDead = 0}
        msg = 0x0
        rv = <optimized out>
#9  0x00007f2d806993ef in DConnectStub::CallMethod (this=0x55a0239c72e0, aMethodIndex=<optimized out>, aInfo=0x55a0239587e0, aParams=0x7f2d70d4a7f0) at /build/virtualbox-SNwOtQ/virtualbox-5.2.4-dfsg/src/libs/xpcom18a4/ipc/ipcd/extensions/dconnect/src/ipcDConnectService.cpp:2656
        rv = 0
        es = {<nsCOMPtr_base> = {mRawPtr = 0x55a02392b530}, <No data fields>}
        em = {<nsCOMPtr_base> = {mRawPtr = 0x7f2d58001bd0}, <No data fields>}
        dConnect = {mRawPtr = 0x55a0233bac00}
        i = <optimized out>
        writer = {mBuf = 0x7f2d58003270 "\003", mBufPtr = 0x7f2d58003282 "", mBufEnd = 0x7f2d58003290 "", mCapacity = 32, mError = 0}
        invoke = {<DConnectOp> = {opcode_major = 3 '\003', opcode_minor = 0 '\000', flags = 0, request_index = 168}, instance = 140627564042480, method_index = 36}
        wrappers = {_vptr.nsVoidArray = 0x7f2d97d84bb8 <vtable for nsVoidArray+16>, mImpl = 0x0}
        ipc_dmo_for_scopekDConnectTargetID = {mTarget = @0x7f2d806a00b0}
        completion = {<DConnectCompletion> = {<ipcIMessageObserver> = {<nsISupports> = {_vptr.nsISupports = 0x7f2d808a4f80 <vtable for DConnectInvokeCompletion+16>}, <No data fields>}, mSelector = {<ipcIMessageObserver> = {<nsISupports> = {_vptr.nsISupports = 0x7f2d808a4f50 <vtable for DConnectMsgSelector+16>}, <No data fields>}, mPeer = 2, mOpCodeMajor = 5 '\005', mRequestIndex = 168}}, mReply = 0x0, mParamsLen = 0}
        reader = {mBuf = 0x0, mBufEnd = 0x0, mBufPtr = 0x0, mError = 0}
#10 0x00007f2d97b1973d in PrepareAndDispatch (self=0x55a0239c72e0, methodIndex=<optimized out>, args=<optimized out>, gpregs=0x7f2d70d4a8c0, fpregs=0x7f2d70d4a8f0) at /build/virtualbox-SNwOtQ/virtualbox-5.2.4-dfsg/src/libs/xpcom18a4/xpcom/reflect/xptcall/src/md/unix/xptcstubs_x86_64_linux.cpp:156
        paramBuffer = {{val = {i8 = 88 'X', i16 = -22184, i32 = 1892985176, i64 = 139833143241048, u8 = 88 'X', u16 = 43352, u32 = 1892985176, u64 = 139833143241048, f = 5.26524369e+29, d = 6.9086752225399919e-310, b = 1892985176, c = 88 'X', wc = 43352, p = 0x7f2d70d4a958}}, {val = {i8 = 0 '\000', i16 = 0, i32 = 0, i64 = 0, u8 = 0 '\000', u16 = 0, u32 = 0, u64 = 0, f = 0, d = 0, b = 0, c = 0 '\000', wc = 0, p = 0x0}} <repeats 15 times>}
        dispatchParams = 0x7f2d70d4a7f0
        iface_info = 0x7f2d6c006040
        info = 0x55a0239587e0
        paramCount = 1
        i = <optimized out>
        result = 2147500037
        ap = 0x7f2d70d4a940
        nr_gpr = <optimized out>
        nr_fpr = <optimized out>
        value = <optimized out>
#11 0x00007f2d97b18b13 in SharedStub () from /tmp/apport_sandbox_EjOPyj/usr/lib/virtualbox/VBoxXPCOM.so
No locals.
#12 0x00007f2d9900bf9c in CMedium::RefreshState (this=this@entry=0x7f2d70d4aa48) at /build/virtualbox-SNwOtQ/virtualbox-5.2.4-dfsg/out/obj/VirtualBox/include/COMWrappers.cpp:18036
        aState = KMediumState_NotCreated
#13 0x00007f2d98d4a862 in UIMedium::blockAndQueryState (this=this@entry=0x7f2d70d4aa40) at /build/virtualbox-SNwOtQ/virtualbox-5.2.4-dfsg/src/VBox/Frontends/VirtualBox/src/medium/UIMedium.cpp:132
No locals.
#14 0x00007f2d98d60a02 in UITaskMediumEnumeration::run (this=0x7f2d88007e40) at /build/virtualbox-SNwOtQ/virtualbox-5.2.4-dfsg/src/VBox/Frontends/VirtualBox/src/medium/UIMediumEnumerator.cpp:63
        medium = {m_type = UIMediumDefs::UIMediumType_DVD, m_medium = {<CInterface<IMedium, COMBaseWithEI>> = {<COMBaseWithEI> = {<COMBase> = {static sSocketListener = 0x55a02390dc40, mRC = 0}, mErrInfo = {mIsNull = true, mIsBasicAvailable = false, mIsFullAvailable = false, mResultCode = 0, mInterfaceID = {data1 = 0, data2 = 0, data3 = 0, data4 = "\000\000\000\000\000\000\000"}, mComponent = {static null = {<No data fields>}, d = 0x7f2d9749dec0 <QArrayData::shared_null>}, mText = {static null = {<No data fields>}, d = 0x7f2d9749dec0 <QArrayData::shared_null>}, m_pNext = 0x0, mInterfaceName = {static null = {<No data fields>}, d = 0x7f2d9749dec0 <QArrayData::shared_null>}, mCalleeIID = {data1 = 0, data2 = 0, data3 = 0, data4 = "\000\000\000\000\000\000\000"}, mCalleeName = {static null = {<No data fields>}, d = 0x7f2d9749dec0 <QArrayData::shared_null>}}}, _vptr.CInterface = 0x7f2d998dabf0 <vtable for CMedium+16>, mIface = 0x55a0239c72e0}, <No data fields>}, m_state = KMediumState_NotCreated, m_result = {mRC = 0, mErrInfo = {mIsNull = true, mIsBasicAvailable = false, mIsFullAvailable = false, mResultCode = 0, mInterfaceID = {data1 = 0, data2 = 0, data3 = 0, data4 = "\000\000\000\000\000\000\000"}, mComponent = {static null = {<No data fields>}, d = 0x7f2d9749dec0 <QArrayData::shared_null>}, mText = {static null = {<No data fields>}, d = 0x7f2d9749dec0 <QArrayData::shared_null>}, m_pNext = 0x0, mInterfaceName = {static null = {<No data fields>}, d = 0x7f2d9749dec0 <QArrayData::shared_null>}, mCalleeIID = {data1 = 0, data2 = 0, data3 = 0, data4 = "\000\000\000\000\000\000\000"}, mCalleeName = {static null = {<No data fields>}, d = 0x7f2d9749dec0 <QArrayData::shared_null>}}}, m_strLastAccessError = {static null = {<No data fields>}, d = 0x7f2d9749dec0 <QArrayData::shared_null>}, m_strId = {static null = {<No data fields>}, d = 0x7f2d6c007a90}, m_strRootId = {static null = {<No data fields>}, d = 0x7f2d6c007a90}, m_strParentId = {static null = {<No data fields>}, d = 0x55a0231e58c0}, m_strKey = {static null = {<No data fields>}, d = 0x7f2d6c007a90}, m_strName = {static null = {<No data fields>}, d = 0x7f2d6c004cc0}, m_strLocation = {static null = {<No data fields>}, d = 0x55a0239c4900}, m_strDescription = {static null = {<No data fields>}, d = 0x7f2d6c0061b0}, m_uSize = 0, m_uLogicalSize = 0, m_strSize = {static null = {<No data fields>}, d = 0x7f2d6c007610}, m_strLogicalSize = {static null = {<No data fields>}, d = 0x7f2d6c007610}, m_enmMediumType = KMediumType_Readonly, m_enmMediumVariant = KMediumVariant_Standard, m_strHardDiskType = {static null = {<No data fields>}, d = 0x7f2d9749dec0 <QArrayData::shared_null>}, m_strHardDiskFormat = {static null = {<No data fields>}, d = 0x7f2d9749dec0 <QArrayData::shared_null>}, m_fHasChildren = false, m_strStorageDetails = {static null = {<No data fields>}, d = 0x7f2d9749dec0 <QArrayData::shared_null>}, m_strEncryptionPasswordID = {static null = {<No data fields>}, d = 0x7f2d9749dec0 <QArrayData::shared_null>}, m_strUsage = {static null = {<No data fields>}, d = 0x7f2d6c006b20}, m_strToolTip = {static null = {<No data fields>}, d = 0x7f2d6c008550}, m_machineIds = {<QListSpecialMethods<QString>> = {<No data fields>}, {p = {static shared_null = {ref = {atomic = {_q_value = {<std::__atomic_base<int>> = {static _S_alignment = 4, _M_i = -1}, <No data fields>}}}, alloc = 0, begin = 0, end = 0, array = {0x0}}, d = 0x55a023694fd0}, d = 0x55a023694fd0}}, m_curStateMachineIds = {<QListSpecialMethods<QString>> = {<No data fields>}, {p = {static shared_null = {ref = {atomic = {_q_value = {<std::__atomic_base<int>> = {static _S_alignment = 4, _M_i = -1}, <No data fields>}}}, alloc = 0, begin = 0, end = 0, array = {0x0}}, d = 0x7f2d6c007dd0}, d = 0x7f2d6c007dd0}}, m_noDiffs = {isSet = false, state = KMediumState_NotCreated, result = {mRC = 0, mErrInfo = {mIsNull = true, mIsBasicAvailable = false, mIsFullAvailable = false, mResultCode = 0, mInterfaceID = {data1 = 0, data2 = 0, data3 = 0, data4 = "\000\000\000\000\000\000\000"}, mComponent = {static null = {<No data fields>}, d = 0x7f2d9749dec0 <QArrayData::shared_null>}, mText = {static null = {<No data fields>}, d = 0x7f2d9749dec0 <QArrayData::shared_null>}, m_pNext = 0x0, mInterfaceName = {static null = {<No data fields>}, d = 0x7f2d9749dec0 <QArrayData::shared_null>}, mCalleeIID = {data1 = 0, data2 = 0, data3 = 0, data4 = "\000\000\000\000\000\000\000"}, mCalleeName = {static null = {<No data fields>}, d = 0x7f2d9749dec0 <QArrayData::shared_null>}}}, toolTip = {static null = {<No data fields>}, d = 0x7f2d9749dec0 <QArrayData::shared_null>}}, m_fHidden = false, m_fUsedByHiddenMachinesOnly = false, m_fReadOnly = false, m_fUsedInSnapshots = false, m_fHostDrive = false, m_fEncrypted = false, static m_sstrNullID = {static null = {<No data fields>}, d = 0x55a0231e58c0}, static m_sstrTable = {static null = <same as static member of an already seen type>, d = 0x55a0231e5d40}, static m_sstrRow = {static null = <same as static member of an already seen type>, d = 0x55a0231e4790}}
#15 0x00007f2d98d1f28a in UITask::start (this=0x7f2d88007e40) at /build/virtualbox-SNwOtQ/virtualbox-5.2.4-dfsg/src/VBox/Frontends/VirtualBox/src/globals/UIThreadPool.cpp:298
No locals.
#16 UIThreadWorker::run (this=0x55a02362e260) at /build/virtualbox-SNwOtQ/virtualbox-5.2.4-dfsg/src/VBox/Frontends/VirtualBox/src/globals/UIThreadPool.cpp:322
        pTask = 0x7f2d88007e40
#17 0x00007f2d971d214d in QThreadPrivate::start (arg=0x55a02362e260) at thread/qthread_unix.cpp:368
        __clframe = {__cancel_routine = 0x7f2d971d11e0 <QThreadPrivate::finish(void*)>, __cancel_arg = 0x55a02362e260, __do_it = 1, __cancel_type = <optimized out>}
        thr = 0x55a02362e260
        data = 0x7f2d6c004f50
#18 0x00007f2da3beb7fc in start_thread (arg=0x7f2d70d4b700) at pthread_create.c:465
        pd = 0x7f2d70d4b700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {139833143244544, -3585351358600854879, 140720591185870, 140720591185871, 139833143244544, 139833143245248, 3487092632809751201, 3487196313028772513}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimized out>
        pagesize_m1 = <optimized out>
        sp = <optimized out>
        freesize = <optimized out>
        __PRETTY_FUNCTION__ = "start_thread"
#19 0x00007f2da3714b0f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
No locals.
.
Thread 6 (Thread 0x7f2d7222a700 (LWP 2680)):
#0  0x00007f2da3bf2786 in futex_abstimed_wait_cancelable (private=<optimized out>, abstime=0x7f2d72229b70, expected=0, futex_word=0x55a0239883d8) at ../sysdeps/unix/sysv/linux/futex-internal.h:205
        __ret = -516
        oldtype = 0
        err = <optimized out>
#1  __pthread_cond_wait_common (abstime=0x7f2d72229b70, mutex=0x55a0239883e0, cond=0x55a0239883b0) at pthread_cond_wait.c:539
        spin = 0
        buffer = {__routine = 0x7f2da3bf1e00 <__condvar_cleanup_waiting>, __arg = 0x7f2d72229af0, __canceltype = 1914870640, __prev = 0x0}
        cbuffer = {wseq = 0, cond = 0x55a0239883b0, mutex = 0x55a0239883e0, private = 0}
        err = <optimized out>
        g = 0
        flags = <optimized out>
        maxspin = 0
        signals = 0
        result = 0
        seq = 0
#2  __pthread_cond_timedwait (cond=cond@entry=0x55a0239883b0, mutex=mutex@entry=0x55a0239883e0, abstime=abstime@entry=0x7f2d72229b70) at pthread_cond_wait.c:667
No locals.
#3  0x00007f2da33038a6 in rtSemEventWait (fAutoResume=true, cMillies=500, hEventSem=0x55a0239883b0) at /build/virtualbox-SNwOtQ/virtualbox-5.2.4-dfsg/src/VBox/Runtime/r3/linux/../posix/semevent-posix.cpp:465
        hThreadSelf = 0x0
        ts = {tv_sec = 1513790086, tv_nsec = 240143539}
        rc = <optimized out>
        pThis = 0x55a0239883b0
        u32 = <optimized out>
#4  RTSemEventWait (hEventSem=hEventSem@entry=0x55a0239883b0, cMillies=cMillies@entry=500) at /build/virtualbox-SNwOtQ/virtualbox-5.2.4-dfsg/src/VBox/Runtime/r3/linux/../posix/semevent-posix.cpp:482
No locals.
#5  0x00007f2d72d3c333 in ListenerRecord::dequeue (this=this@entry=0x55a0239886f0, aEvent=aEvent@entry=0x7f2d72229ca0, aTimeout=aTimeout@entry=500, aAlock=...) at /build/virtualbox-SNwOtQ/virtualbox-5.2.4-dfsg/src/VBox/Main/src-all/EventImpl.cpp:921
        hEvt = 0x55a0239883b0
        holder = {held = 0x55a0239886f0}
#6  0x00007f2d72d3c51c in EventSource::getEvent (this=0x55a02393a3b0, aListener=..., aTimeout=500, aEvent=...) at /build/virtualbox-SNwOtQ/virtualbox-5.2.4-dfsg/src/VBox/Main/src-all/EventImpl.cpp:1205
        alock = {<util::AutoLockBase> = {_vptr.AutoLockBase = 0x7f2d73193d30 <vtable for util::AutoReadLock+16>, m = 0x7f2d68003640}, <No data fields>}
        it = <optimized out>
        rc = 0
#7  0x00007f2d72e9c19f in EventSourceWrap::GetEvent (this=0x55a02393a3b0, aListener=<optimized out>, aTimeout=500, aEvent=0x7f2d72229d00) at /build/virtualbox-SNwOtQ/virtualbox-5.2.4-dfsg/out/obj/VBoxAPIWrap/EventSourceWrap.cpp:314
        TmpListener = {mSrc = {m_p = 0x55a0239096a0}}
        TmpEvent = {mPtr = {m_p = 0x0}, mDst = 0x7f2d72229d00}
        autoCaller = {mObj = 0x55a02393a3b0, mRC = <optimized out>, mLimited = false}
        hrc = <optimized out>
        __PRETTY_FUNCTION__ = "virtual nsresult EventSourceWrap::GetEvent(IEventListener*, PRInt32, IEvent**)"
#8  0x00007f2d99020a7c in CEventSource::GetEvent (this=this@entry=0x7f2d72229d30, aListener=..., aTimeout=aTimeout@entry=500) at /build/virtualbox-SNwOtQ/virtualbox-5.2.4-dfsg/out/obj/VirtualBox/include/COMWrappers.cpp:27036
        aEvent = {<CInterface<IEvent, COMBaseWithEI>> = {<COMBaseWithEI> = {<COMBase> = {static sSocketListener = 0x55a02390dc40, mRC = 0}, mErrInfo = {mIsNull = true, mIsBasicAvailable = false, mIsFullAvailable = false, mResultCode = 0, mInterfaceID = {data1 = 0, data2 = 0, data3 = 0, data4 = "\000\000\000\000\000\000\000"}, mComponent = {static null = {<No data fields>}, d = 0x7f2d9749dec0 <QArrayData::shared_null>}, mText = {static null = {<No data fields>}, d = 0x7f2d9749dec0 <QArrayData::shared_null>}, m_pNext = 0x0, mInterfaceName = {static null = {<No data fields>}, d = 0x7f2d9749dec0 <QArrayData::shared_null>}, mCalleeIID = {data1 = 0, data2 = 0, data3 = 0, data4 = "\000\000\000\000\000\000\000"}, mCalleeName = {static null = {<No data fields>}, d = 0x7f2d9749dec0 <QArrayData::shared_null>}}}, _vptr.CInterface = 0x7f2d998db470 <vtable for CEvent+16>, mIface = 0x0}, <No data fields>}
        eventPtr = 0x0
#9  0x00007f2d98cf4e13 in UIMainEventListeningThread::run (this=0x55a023988b80) at /build/virtualbox-SNwOtQ/virtualbox-5.2.4-dfsg/src/VBox/Frontends/VirtualBox/src/globals/UIMainEventListener.cpp:136
        event = {<CInterface<IEvent, COMBaseWithEI>> = {<COMBaseWithEI> = {<COMBase> = {static sSocketListener = 0x55a02390dc40, mRC = 0}, mErrInfo = {mIsNull = true, mIsBasicAvailable = false, mIsFullAvailable = false, mResultCode = 0, mInterfaceID = {data1 = 0, data2 = 0, data3 = 0, data4 = "\000\000\000\000\000\000\000"}, mComponent = {static null = {<No data fields>}, d = 0x7f2d9749dec0 <QArrayData::shared_null>}, mText = {static null = {<No data fields>}, d = 0x7f2d9749dec0 <QArrayData::shared_null>}, m_pNext = 0x0, mInterfaceName = {static null = {<No data fields>}, d = 0x7f2d9749dec0 <QArrayData::shared_null>}, mCalleeIID = {data1 = 0, data2 = 0, data3 = 0, data4 = "\000\000\000\000\000\000\000"}, mCalleeName = {static null = {<No data fields>}, d = 0x7f2d9749dec0 <QArrayData::shared_null>}}}, _vptr.CInterface = 0x7f2d998db470 <vtable for CEvent+16>, mIface = 0x0}, <No data fields>}
        source = {<CInterface<IEventSource, COMBaseWithEI>> = {<COMBaseWithEI> = {<COMBase> = {static sSocketListener = 0x55a02390dc40, mRC = 0}, mErrInfo = {mIsNull = true, mIsBasicAvailable = false, mIsFullAvailable = false, mResultCode = 0, mInterfaceID = {data1 = 0, data2 = 0, data3 = 0, data4 = "\000\000\000\000\000\000\000"}, mComponent = {static null = {<No data fields>}, d = 0x7f2d9749dec0 <QArrayData::shared_null>}, mText = {static null = {<No data fields>}, d = 0x7f2d9749dec0 <QArrayData::shared_null>}, m_pNext = 0x0, mInterfaceName = {static null = {<No data fields>}, d = 0x7f2d9749dec0 <QArrayData::shared_null>}, mCalleeIID = {data1 = 0, data2 = 0, data3 = 0, data4 = "\000\000\000\000\000\000\000"}, mCalleeName = {static null = {<No data fields>}, d = 0x7f2d9749dec0 <QArrayData::shared_null>}}}, _vptr.CInterface = 0x7f2d998db3c0 <vtable for CEventSource+16>, mIface = 0x55a023552880}, <No data fields>}
        listener = {<CInterface<IEventListener, COMBaseWithEI>> = {<COMBaseWithEI> = {<COMBase> = {static sSocketListener = 0x55a02390dc40, mRC = 0}, mErrInfo = {mIsNull = true, mIsBasicAvailable = false, mIsFullAvailable = false, mResultCode = 0, mInterfaceID = {data1 = 0, data2 = 0, data3 = 0, data4 = "\000\000\000\000\000\000\000"}, mComponent = {static null = {<No data fields>}, d = 0x7f2d9749dec0 <QArrayData::shared_null>}, mText = {static null = {<No data fields>}, d = 0x7f2d9749dec0 <QArrayData::shared_null>}, m_pNext = 0x0, mInterfaceName = {static null = {<No data fields>}, d = 0x7f2d9749dec0 <QArrayData::shared_null>}, mCalleeIID = {data1 = 0, data2 = 0, data3 = 0, data4 = "\000\000\000\000\000\000\000"}, mCalleeName = {static null = {<No data fields>}, d = 0x7f2d9749dec0 <QArrayData::shared_null>}}}, _vptr.CInterface = 0x7f2d998db450 <vtable for CEventListener+16>, mIface = 0x55a0239096a0}, <No data fields>}
#10 0x00007f2d971d214d in QThreadPrivate::start (arg=0x55a023988b80) at thread/qthread_unix.cpp:368
        __clframe = {__cancel_routine = 0x7f2d971d11e0 <QThreadPrivate::finish(void*)>, __cancel_arg = 0x55a023988b80, __do_it = 1, __cancel_type = <optimized out>}
        thr = 0x55a023988b80
        data = 0x55a023988c80
#11 0x00007f2da3beb7fc in start_thread (arg=0x7f2d7222a700) at pthread_create.c:465
        pd = 0x7f2d7222a700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {139833165129472, -3585351358600854879, 140720591179934, 140720591179935, 139833165129472, 139833165130176, 3487089764308468385, 3487196313028772513}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimized out>
        pagesize_m1 = <optimized out>
        sp = <optimized out>
        freesize = <optimized out>
        __PRETTY_FUNCTION__ = "start_thread"
#12 0x00007f2da3714b0f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
No locals.
.
Thread 5 (Thread 0x7f2d72a2b700 (LWP 2679)):
#0  0x00007f2da3bf2786 in futex_abstimed_wait_cancelable (private=<optimized out>, abstime=0x7f2d72a2a850, expected=0, futex_word=0x55a02390c544) at ../sysdeps/unix/sysv/linux/futex-internal.h:205
        __ret = -516
        oldtype = 0
        err = <optimized out>
#1  __pthread_cond_wait_common (abstime=0x7f2d72a2a850, mutex=0x55a02390c568, cond=0x55a02390c518) at pthread_cond_wait.c:539
        spin = 0
        buffer = {__routine = 0x7f2da3bf1e00 <__condvar_cleanup_waiting>, __arg = 0x7f2d72a2a7d0, __canceltype = 80, __prev = 0x0}
        cbuffer = {wseq = 343, cond = 0x55a02390c518, mutex = 0x55a02390c568, private = 0}
        err = <optimized out>
        g = 1
        flags = <optimized out>
        maxspin = 0
        signals = 0
        result = 0
        seq = 171
#2  __pthread_cond_timedwait (cond=cond@entry=0x55a02390c518, mutex=mutex@entry=0x55a02390c568, abstime=abstime@entry=0x7f2d72a2a850) at pthread_cond_wait.c:667
No locals.
#3  0x00007f2d97b396e9 in pt_TimedWait (cv=cv@entry=0x55a02390c518, ml=0x55a02390c568, timeout=timeout@entry=2333369565) at /build/virtualbox-SNwOtQ/virtualbox-5.2.4-dfsg/src/libs/xpcom18a4/nsprpub/pr/src/pthreads/ptsynch.c:267
        rv = <optimized out>
        now = {tv_sec = 1513790085, tv_usec = 922006}
        tmo = {tv_sec = 1516123455, tv_nsec = 487006000}
        ticks = <optimized out>
#4  0x00007f2d97b39b3c in VBoxNsprPR_WaitCondVar (cvar=0x55a02390c510, timeout=2333369565) at /build/virtualbox-SNwOtQ/virtualbox-5.2.4-dfsg/src/libs/xpcom18a4/nsprpub/pr/src/pthreads/ptsynch.c:394
        rv = <optimized out>
        thred = 0x7f2d5c003120
#5  0x00007f2d97b39dd9 in VBoxNsprPR_Wait (mon=mon@entry=0x55a02390c560, timeout=<optimized out>) at /build/virtualbox-SNwOtQ/virtualbox-5.2.4-dfsg/src/libs/xpcom18a4/nsprpub/pr/src/pthreads/ptsynch.c:571
        rv = -516
        saved_entries = 1
        saved_owner = 139833173522176
#6  0x00007f2d806921af in nsAutoMonitor::Wait (interval=<optimized out>, this=<synthetic pointer>) at /build/virtualbox-SNwOtQ/virtualbox-5.2.4-dfsg/src/libs/xpcom18a4/xpcom/threads/nsAutoLock.h:281
No locals.
#7  WaitTarget (aTarget=..., aTimeout=<optimized out>, aMsg=aMsg@entry=0x7f2d72a2a948, aSelector=aSelector@entry=0x7f2d80690952 <WaitMessageSelector(void*, ipcTargetData*, ipcMessage const*)>, aArg=aArg@entry=0x7f2d72a2a950) at /build/virtualbox-SNwOtQ/virtualbox-5.2.4-dfsg/src/libs/xpcom18a4/ipc/ipcd/client/src/ipcdclient.cpp:491
        t = <optimized out>
        td = {mRawPtr = 0x55a023917030}
        timeStart = <optimized out>
        timeEnd = 4294967295
        lastChecked = 0x0
        beforeLastChecked = <optimized out>
        rv = 2147500036
        mon = {<nsAutoLockBase> = {<No data fields>}, mMonitor = 0x55a02390c560, mLockCount = <optimized out>}
#8  0x00007f2d8069329a in IPC_WaitMessage (aSenderID=aSenderID@entry=4294967295, aTarget=..., aObserver=aObserver@entry=0x7f2d72a2aaf8, aConsumer=aConsumer@entry=0x7f2d72a2aaf0, aTimeout=aTimeout@entry=4294967295) at /build/virtualbox-SNwOtQ/virtualbox-5.2.4-dfsg/src/libs/xpcom18a4/ipc/ipcd/client/src/ipcdclient.cpp:1142
        data = {senderID = 4294967295, observer = 0x7f2d72a2aaf8, senderDead = 0}
        msg = 0x0
        rv = <optimized out>
#9  0x00007f2d806993ef in DConnectStub::CallMethod (this=0x55a023985e60, aMethodIndex=<optimized out>, aInfo=0x55a02396dd28, aParams=0x7f2d72a2abb0) at /build/virtualbox-SNwOtQ/virtualbox-5.2.4-dfsg/src/libs/xpcom18a4/ipc/ipcd/extensions/dconnect/src/ipcDConnectService.cpp:2656
        rv = 0
        es = {<nsCOMPtr_base> = {mRawPtr = 0x55a02392b530}, <No data fields>}
        em = {<nsCOMPtr_base> = {mRawPtr = 0x7f2d5c001bd0}, <No data fields>}
        dConnect = {mRawPtr = 0x55a0233bac00}
        i = <optimized out>
        writer = {mBuf = 0x7f2d5c003640 "\003", mBufPtr = 0x7f2d5c00365e "", mBufEnd = 0x7f2d5c003670 "", mCapacity = 48, mError = 0}
        invoke = {<DConnectOp> = {opcode_major = 3 '\003', opcode_minor = 0 '\000', flags = 0, request_index = 112}, instance = 140627564039488, method_index = 8}
        wrappers = {_vptr.nsVoidArray = 0x7f2d97d84bb8 <vtable for nsVoidArray+16>, mImpl = 0x7f2d5c003680}
        ipc_dmo_for_scopekDConnectTargetID = {mTarget = @0x7f2d806a00b0}
        completion = {<DConnectCompletion> = {<ipcIMessageObserver> = {<nsISupports> = {_vptr.nsISupports = 0x7f2d808a4f80 <vtable for DConnectInvokeCompletion+16>}, <No data fields>}, mSelector = {<ipcIMessageObserver> = {<nsISupports> = {_vptr.nsISupports = 0x7f2d808a4f50 <vtable for DConnectMsgSelector+16>}, <No data fields>}, mPeer = 2, mOpCodeMajor = 5 '\005', mRequestIndex = 112}}, mReply = 0x0, mParamsLen = 0}
        reader = {mBuf = 0x0, mBufEnd = 0x0, mBufPtr = 0x0, mError = 0}
#10 0x00007f2d97b1973d in PrepareAndDispatch (self=0x55a023985e60, methodIndex=<optimized out>, args=<optimized out>, gpregs=0x7f2d72a2ac80, fpregs=0x7f2d72a2acb0) at /build/virtualbox-SNwOtQ/virtualbox-5.2.4-dfsg/src/libs/xpcom18a4/xpcom/reflect/xptcall/src/md/unix/xptcstubs_x86_64_linux.cpp:156
        paramBuffer = {{val = {i8 = 16 '\020', i16 = 24592, i32 = 597188624, i64 = 94146280316944, u8 = 16 '\020', u16 = 24592, u32 = 597188624, u64 = 94146280316944, f = 1.65205571e-17, d = 4.6514442788341975e-310, b = 597188624, c = 16 '\020', wc = 24592, p = 0x55a023986010}}, {val = {i8 = -12 '\364', i16 = 500, i32 = 500, i64 = 500, u8 = 244 '\364', u16 = 500, u32 = 500, u64 = 500, f = 7.00649232e-43, d = 2.4703282292062327e-321, b = 500, c = -12 '\364', wc = 500, p = 0x1f4}}, {val = {i8 = 0 '\000', i16 = -21248, i32 = 1923263744, i64 = 139833173519616, u8 = 0 '\000', u16 = 44288, u32 = 1923263744, u64 = 139833173519616, f = 6.44425162e+30, d = 6.9086767185000173e-310, b = 1923263744, c = 0 '\000', wc = 44288, p = 0x7f2d72a2ad00}}, {val = {i8 = -112 '\220', i16 = -9584, i32 = -1727145328, i64 = 139833818077840, u8 = 144 '\220', u16 = 55952, u32 = 2567821968, u64 = 139833818077840, f = -7.33366749e-24, d = 6.9087085639075396e-310, b = -1727145328, c = -112 '\220', wc = 55952, p = 0x7f2d990dda90 <NS_GetEventQueueService(nsIEventQueueService**)::kEventQueueServiceCID>}}, {val = {i8 = 0 '\000', i16 = 0, i32 = 0, i64 = 0, u8 = 0 '\000', u16 = 0, u32 = 0, u64 = 0, f = 0, d = 0, b = 0, c = 0 '\000', wc = 0, p = 0x0}}, {val = {i8 = -48 '\320', i16 = -31280, i32 = -1750301232, i64 = 139833794921936, u8 = 208 '\320', u16 = 34256, u32 = 2544666064, u64 = 139833794921936, f = -1.11490185e-24, d = 6.9087074198538731e-310, b = -1750301232, c = -48 '\320', wc = 34256, p = 0x7f2d97ac85d0 <SearchTable+89>}}, {val = {i8 = -80 '\260', i16 = -3408, i32 = 591786672, i64 = 94146274914992, u8 = 176 '\260', u16 = 62128, u32 = 591786672, u64 = 94146274914992, f = 1.07307825e-17, d = 4.6514440119423071e-310, b = 591786672, c = -80 '\260', wc = 62128, p = 0x55a02345f2b0}}, {val = {i8 = 0 '\000', i16 = 0, i32 = 0, i64 = 0, u8 = 0 '\000', u16 = 0, u32 = 0, u64 = 0, f = 0, d = 0, b = 0, c = 0 '\000', wc = 0, p = 0x0}}, {val = {i8 = -112 '\220', i16 = -9584, i32 = -1727145328, i64 = 2567821968, u8 = 144 '\220', u16 = 55952, u32 = 2567821968, u64 = 2567821968, f = -7.33366749e-24, d = 1.2686726190252607e-314, b = -1727145328, c = -112 '\220', wc = 55952, p = 0x990dda90}}, {val = {i8 = 64 '@', i16 = 8256, i32 = 592453696, i64 = 94146275582016, u8 = 64 '@', u16 = 8256, u32 = 592453696, u64 = 94146275582016, f = 1.12825318e-17, d = 4.6514440448976714e-310, b = 592453696, c = 64 '@', wc = 8256, p = 0x55a023502040}}, {val = {i8 = -48 '\320', i16 = 23760, i32 = 596663504, i64 = 94146279791824, u8 = 208 '\320', u16 = 23760, u32 = 596663504, u64 = 94146279791824, f = 1.56518189e-17, d = 4.6514442528898223e-310, b = 596663504, c = -48 '\320', wc = 23760, p = 0x55a023905cd0}}, {val = {i8 = 64 '@', i16 = -21440, i32 = 1923263552, i64 = 139833173519424, u8 = 64 '@', u16 = 44096, u32 = 1923263552, u64 = 139833173519424, f = 6.44413556e+30, d = 6.9086767184905313e-310, b = 1923263552, c = 64 '@', wc = 44096, p = 0x7f2d72a2ac40}}, {val = {i8 = 0 '\000', i16 = 0, i32 = 0, i64 = 0, u8 = 0 '\000', u16 = 0, u32 = 0, u64 = 0, f = 0, d = 0, b = 0, c = 0 '\000', wc = 0, p = 0x0}}, {val = {i8 = -48 '\320', i16 = 23760, i32 = 596663504, i64 = 94146279791824, u8 = 208 '\320', u16 = 23760, u32 = 596663504, u64 = 94146279791824, f = 1.56518189e-17, d = 4.6514442528898223e-310, b = 596663504, c = -48 '\320', wc = 23760, p = 0x55a023905cd0}}, {val = {i8 = -104 '\230', i16 = -21352, i32 = 1923263640, i64 = 139833173519512, u8 = 152 '\230', u16 = 44184, u32 = 1923263640, u64 = 139833173519512, f = 6.44418875e+30, d = 6.908676718494879e-310, b = 1923263640, c = -104 '\230', wc = 44184, p = 0x7f2d72a2ac98}}, {val = {i8 = 30 '\036', i16 = -18146, i32 = -1749829346, i64 = 139833795393822, u8 = 30 '\036', u16 = 47390, u32 = 2545137950, u64 = 139833795393822, f = -1.1614334e-24, d = 6.9087074431681393e-310, b = -1749829346, c = 30 '\036', wc = 47390, p = 0x7f2d97b3b91e <nsCOMPtr_base::~nsCOMPtr_base()+18>}}}
        dispatchParams = 0x7f2d72a2abb0
        iface_info = 0x55a023949830
        info = 0x55a02396dd28
        paramCount = 3
        i = <optimized out>
        result = 2147500037
        ap = 0x7f2d72a2ad00
        nr_gpr = <optimized out>
        nr_fpr = <optimized out>
        value = <optimized out>
#11 0x00007f2d97b18b13 in SharedStub () from /tmp/apport_sandbox_EjOPyj/usr/lib/virtualbox/VBoxXPCOM.so
No locals.
#12 0x00007f2d99020a7c in CEventSource::GetEvent (this=this@entry=0x7f2d72a2ad30, aListener=..., aTimeout=aTimeout@entry=500) at /build/virtualbox-SNwOtQ/virtualbox-5.2.4-dfsg/out/obj/VirtualBox/include/COMWrappers.cpp:27036
        aEvent = {<CInterface<IEvent, COMBaseWithEI>> = {<COMBaseWithEI> = {<COMBase> = {static sSocketListener = 0x55a02390dc40, mRC = 0}, mErrInfo = {mIsNull = true, mIsBasicAvailable = false, mIsFullAvailable = false, mResultCode = 0, mInterfaceID = {data1 = 0, data2 = 0, data3 = 0, data4 = "\000\000\000\000\000\000\000"}, mComponent = {static null = {<No data fields>}, d = 0x7f2d9749dec0 <QArrayData::shared_null>}, mText = {static null = {<No data fields>}, d = 0x7f2d9749dec0 <QArrayData::shared_null>}, m_pNext = 0x0, mInterfaceName = {static null = {<No data fields>}, d = 0x7f2d9749dec0 <QArrayData::shared_null>}, mCalleeIID = {data1 = 0, data2 = 0, data3 = 0, data4 = "\000\000\000\000\000\000\000"}, mCalleeName = {static null = {<No data fields>}, d = 0x7f2d9749dec0 <QArrayData::shared_null>}}}, _vptr.CInterface = 0x7f2d998db470 <vtable for CEvent+16>, mIface = 0x0}, <No data fields>}
        eventPtr = 0x0
#13 0x00007f2d98cf4e13 in UIMainEventListeningThread::run (this=0x55a023987810) at /build/virtualbox-SNwOtQ/virtualbox-5.2.4-dfsg/src/VBox/Frontends/VirtualBox/src/globals/UIMainEventListener.cpp:136
        event = {<CInterface<IEvent, COMBaseWithEI>> = {<COMBaseWithEI> = {<COMBase> = {static sSocketListener = 0x55a02390dc40, mRC = 0}, mErrInfo = {mIsNull = true, mIsBasicAvailable = false, mIsFullAvailable = false, mResultCode = 0, mInterfaceID = {data1 = 0, data2 = 0, data3 = 0, data4 = "\000\000\000\000\000\000\000"}, mComponent = {static null = {<No data fields>}, d = 0x7f2d9749dec0 <QArrayData::shared_null>}, mText = {static null = {<No data fields>}, d = 0x7f2d9749dec0 <QArrayData::shared_null>}, m_pNext = 0x0, mInterfaceName = {static null = {<No data fields>}, d = 0x7f2d9749dec0 <QArrayData::shared_null>}, mCalleeIID = {data1 = 0, data2 = 0, data3 = 0, data4 = "\000\000\000\000\000\000\000"}, mCalleeName = {static null = {<No data fields>}, d = 0x7f2d9749dec0 <QArrayData::shared_null>}}}, _vptr.CInterface = 0x7f2d998db470 <vtable for CEvent+16>, mIface = 0x0}, <No data fields>}
        source = {<CInterface<IEventSource, COMBaseWithEI>> = {<COMBaseWithEI> = {<COMBase> = {static sSocketListener = 0x55a02390dc40, mRC = 0}, mErrInfo = {mIsNull = true, mIsBasicAvailable = false, mIsFullAvailable = false, mResultCode = 0, mInterfaceID = {data1 = 0, data2 = 0, data3 = 0, data4 = "\000\000\000\000\000\000\000"}, mComponent = {static null = {<No data fields>}, d = 0x7f2d9749dec0 <QArrayData::shared_null>}, mText = {static null = {<No data fields>}, d = 0x7f2d9749dec0 <QArrayData::shared_null>}, m_pNext = 0x0, mInterfaceName = {static null = {<No data fields>}, d = 0x7f2d9749dec0 <QArrayData::shared_null>}, mCalleeIID = {data1 = 0, data2 = 0, data3 = 0, data4 = "\000\000\000\000\000\000\000"}, mCalleeName = {static null = {<No data fields>}, d = 0x7f2d9749dec0 <QArrayData::shared_null>}}}, _vptr.CInterface = 0x7f2d998db3c0 <vtable for CEventSource+16>, mIface = 0x55a023985e60}, <No data fields>}
        listener = {<CInterface<IEventListener, COMBaseWithEI>> = {<COMBaseWithEI> = {<COMBase> = {static sSocketListener = 0x55a02390dc40, mRC = 0}, mErrInfo = {mIsNull = true, mIsBasicAvailable = false, mIsFullAvailable = false, mResultCode = 0, mInterfaceID = {data1 = 0, data2 = 0, data3 = 0, data4 = "\000\000\000\000\000\000\000"}, mComponent = {static null = {<No data fields>}, d = 0x7f2d9749dec0 <QArrayData::shared_null>}, mText = {static null = {<No data fields>}, d = 0x7f2d9749dec0 <QArrayData::shared_null>}, m_pNext = 0x0, mInterfaceName = {static null = {<No data fields>}, d = 0x7f2d9749dec0 <QArrayData::shared_null>}, mCalleeIID = {data1 = 0, data2 = 0, data3 = 0, data4 = "\000\000\000\000\000\000\000"}, mCalleeName = {static null = {<No data fields>}, d = 0x7f2d9749dec0 <QArrayData::shared_null>}}}, _vptr.CInterface = 0x7f2d998db450 <vtable for CEventListener+16>, mIface = 0x55a023986010}, <No data fields>}
#14 0x00007f2d971d214d in QThreadPrivate::start (arg=0x55a023987810) at thread/qthread_unix.cpp:368
        __clframe = {__cancel_routine = 0x7f2d971d11e0 <QThreadPrivate::finish(void*)>, __cancel_arg = 0x55a023987810, __do_it = 1, __cancel_type = <optimized out>}
        thr = 0x55a023987810
        data = 0x55a023987980
#15 0x00007f2da3beb7fc in start_thread (arg=0x7f2d72a2b700) at pthread_create.c:465
        pd = 0x7f2d72a2b700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {139833173522176, -3585351358600854879, 140720591179518, 140720591179519, 139833173522176, 139833173522880, 3487088664259969697, 3487196313028772513}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimized out>
        pagesize_m1 = <optimized out>
        sp = <optimized out>
        freesize = <optimized out>
        __PRETTY_FUNCTION__ = "start_thread"
#16 0x00007f2da3714b0f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
No locals.
.
Thread 4 (Thread 0x7f2d73d6c700 (LWP 2655)):
#0  0x00007f2da3bf2072 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55a02390ade0) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
        __ret = -512
        oldtype = 0
        err = <optimized out>
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x55a02390ae08, cond=0x55a02390adb8) at pthread_cond_wait.c:502
        spin = 0
        buffer = {__routine = 0x7f2da3bf1e00 <__condvar_cleanup_waiting>, __arg = 0x7f2d73d6bd60, __canceltype = 0, __prev = 0x0}
        cbuffer = {wseq = 0, cond = 0x55a02390adb8, mutex = 0x55a02390ae08, private = 0}
        err = <optimized out>
        g = 0
        flags = <optimized out>
        signals = 0
        result = 0
        seq = 0
#2  __pthread_cond_wait (cond=cond@entry=0x55a02390adb8, mutex=0x55a02390ae08) at pthread_cond_wait.c:655
No locals.
#3  0x00007f2d97b39b99 in VBoxNsprPR_WaitCondVar (cvar=0x55a02390adb0, timeout=timeout@entry=4294967295) at /build/virtualbox-SNwOtQ/virtualbox-5.2.4-dfsg/src/libs/xpcom18a4/nsprpub/pr/src/pthreads/ptsynch.c:392
        rv = <optimized out>
        thred = 0x55a02390bdb0
#4  0x00007f2d97b39dd9 in VBoxNsprPR_Wait (mon=0x55a02390ae00, timeout=timeout@entry=4294967295) at /build/virtualbox-SNwOtQ/virtualbox-5.2.4-dfsg/src/libs/xpcom18a4/nsprpub/pr/src/pthreads/ptsynch.c:571
        rv = -512
        saved_entries = 1
        saved_owner = 139833193711360
#5  0x00007f2d8069b965 in nsAutoMonitor::Wait (interval=4294967295, this=0x7f2d73d6be10) at /build/virtualbox-SNwOtQ/virtualbox-5.2.4-dfsg/src/libs/xpcom18a4/xpcom/threads/nsAutoLock.h:281
No locals.
#6  DConnectWorker::Run (this=0x55a02390b7c0) at /build/virtualbox-SNwOtQ/virtualbox-5.2.4-dfsg/src/libs/xpcom18a4/ipc/ipcd/extensions/dconnect/src/ipcDConnectService.cpp:2956
        rv = <optimized out>
        mon = {<nsAutoLockBase> = {<No data fields>}, mMonitor = 0x55a02390ae00, mLockCount = 1}
#7  0x00007f2d97b0cc4f in nsThread::Main (arg=0x55a02390ba60) at /build/virtualbox-SNwOtQ/virtualbox-5.2.4-dfsg/src/libs/xpcom18a4/xpcom/threads/nsThread.cpp:118
        self = 0x55a02390ba60
        rv = <optimized out>
#8  0x00007f2d97b3a92d in _pt_root (arg=0x55a02390bdb0) at /build/virtualbox-SNwOtQ/virtualbox-5.2.4-dfsg/src/libs/xpcom18a4/nsprpub/pr/src/pthreads/ptthread.c:224
        thred = 0x55a02390bdb0
        detached = 0
#9  _pt_iprt_root (Thread=<optimized out>, pvUser=0x55a02390bdb0) at /build/virtualbox-SNwOtQ/virtualbox-5.2.4-dfsg/src/libs/xpcom18a4/nsprpub/pr/src/pthreads/ptthread.c:272
        thred = 0x55a02390bdb0
#10 0x00007f2da3267c0c in rtThreadMain (pThread=pThread@entry=0x55a02390d270, NativeThread=NativeThread@entry=139833193711360, pszThreadName=pszThreadName@entry=0x55a02390db50 "nspr-2") at /build/virtualbox-SNwOtQ/virtualbox-5.2.4-dfsg/src/VBox/Runtime/common/misc/thread.cpp:719
        rc = <optimized out>
#11 0x00007f2da3300a0b in rtThreadNativeMain (pvArgs=0x55a02390d270) at /build/virtualbox-SNwOtQ/virtualbox-5.2.4-dfsg/src/VBox/Runtime/r3/posix/thread-posix.cpp:327
        pThread = 0x55a02390d270
        Self = 139833193711360
        rc = <optimized out>
        __PRETTY_FUNCTION__ = "void* rtThreadNativeMain(void*)"
#12 0x00007f2da3beb7fc in start_thread (arg=0x7f2d73d6c700) at pthread_create.c:465
        pd = 0x7f2d73d6c700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {139833193711360, -3585351358600854879, 140720591162174, 140720591162175, 139833193711360, 139833193712064, 3487090416069755553, 3487196313028772513}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimized out>
        pagesize_m1 = <optimized out>
        sp = <optimized out>
        freesize = <optimized out>
        __PRETTY_FUNCTION__ = "start_thread"
#13 0x00007f2da3714b0f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
No locals.
.
Thread 3 (Thread 0x7f2d83e8a700 (LWP 2642)):
#0  0x00007f2da3708901 in __GI___poll (fds=0x55a0233e5df0, nfds=2, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
        resultvar = 18446744073709551100
        sc_cancel_oldtype = 0
#1  0x00007f2d9347b169 in g_main_context_poll (priority=<optimized out>, n_fds=2, fds=0x55a0233e5df0, timeout=<optimized out>, context=0x55a0233e3f00) at ../../../../glib/gmain.c:4187
        ret = <optimized out>
        errsv = <optimized out>
        poll_func = 0x7f2d9348a640 <g_poll>
#2  g_main_context_iterate (context=0x55a0233e3f00, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../../../../glib/gmain.c:3881
        max_priority = 2147483647
        timeout = -1
        some_ready = <optimized out>
        nfds = 2
        allocated_nfds = 2
        fds = 0x55a0233e5df0
#3  0x00007f2d9347b502 in g_main_loop_run (loop=0x55a0233e4040) at ../../../../glib/gmain.c:4082
        __func__ = "g_main_loop_run"
#4  0x00007f2d8781ab26 in gdbus_shared_thread_func (user_data=0x55a0233e3ed0) at ../../../../gio/gdbusprivate.c:275
        data = 0x55a0233e3ed0
#5  0x00007f2d934a2645 in g_thread_proxy (data=0x55a0233651e0) at ../../../../glib/gthread.c:784
        thread = 0x55a0233651e0
#6  0x00007f2da3beb7fc in start_thread (arg=0x7f2d83e8a700) at pthread_create.c:465
        pd = 0x7f2d83e8a700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {139833463318272, -3585351358600854879, 140720591182942, 140720591182943, 139833463318272, 139833463318976, 3487266321824072353, 3487196313028772513}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimized out>
        pagesize_m1 = <optimized out>
        sp = <optimized out>
        freesize = <optimized out>
        __PRETTY_FUNCTION__ = "start_thread"
#7  0x00007f2da3714b0f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
No locals.
.
Thread 2 (Thread 0x7f2d8468b700 (LWP 2641)):
#0  0x00007f2da3708901 in __GI___poll (fds=0x55a0233d3d00, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
        resultvar = 18446744073709551100
        sc_cancel_oldtype = 0
#1  0x00007f2d9347b169 in g_main_context_poll (priority=<optimized out>, n_fds=1, fds=0x55a0233d3d00, timeout=<optimized out>, context=0x55a0233d39d0) at ../../../../glib/gmain.c:4187
        ret = <optimized out>
        errsv = <optimized out>
        poll_func = 0x7f2d9348a640 <g_poll>
#2  g_main_context_iterate (context=context@entry=0x55a0233d39d0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../../../../glib/gmain.c:3881
        max_priority = 2147483647
        timeout = -1
        some_ready = <optimized out>
        nfds = 1
        allocated_nfds = 1
        fds = 0x55a0233d3d00
#3  0x00007f2d9347b27c in g_main_context_iteration (context=0x55a0233d39d0, may_block=may_block@entry=1) at ../../../../glib/gmain.c:3947
        retval = <optimized out>
#4  0x00007f2d9347b2c1 in glib_worker_main (data=<optimized out>) at ../../../../glib/gmain.c:5742
No locals.
#5  0x00007f2d934a2645 in g_thread_proxy (data=0x55a023365140) at ../../../../glib/gthread.c:784
        thread = 0x55a023365140
#6  0x00007f2da3beb7fc in start_thread (arg=0x7f2d8468b700) at pthread_create.c:465
        pd = 0x7f2d8468b700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {139833471710976, -3585351358600854879, 140720591182558, 140720591182559, 139833471710976, 139833471711680, 3487278415915106977, 3487196313028772513}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimized out>
        pagesize_m1 = <optimized out>
        sp = <optimized out>
        freesize = <optimized out>
        __PRETTY_FUNCTION__ = "start_thread"
#7  0x00007f2da3714b0f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
No locals.
.
Thread 1 (Thread 0x7f2da4006b80 (LWP 2626)):
#0  __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:51
        set = {__val = {8192, 272, 206158430232, 140720591186048, 140720591185856, 40, 48, 4887535095258628352, 94146280617152, 94146279598128, 94146279598432, 139833995275296, 0, 144, 128, 139833991812372}}
        pid = <optimized out>
        tid = <optimized out>
#1  0x00007f2da3638f5d in __GI_abort () at abort.c:90
        save_stage = 2
        act = {__sigaction_handler = {sa_handler = 0x7ffc10d9a880, sa_sigaction = 0x7ffc10d9a880}, sa_mask = {__val = {139833792439968, 140720591186064, 3, 0, 140720591186576, 140720591186544, 139833999716348, 140720591186168, 139833999740728, 140720591186400, 139833785431219, 140720591186544, 0, 140720591186576, 4887535095258628352, 140720591186576}}, sa_flags = 282700024, sa_restorer = 0x7ffc10d9aa90}
        sigs = {__val = {32, 0 <repeats 15 times>}}
#2  0x00007f2d971bcfe7 in qt_message_fatal (context=..., message=<synthetic pointer>...) at global/qlogging.cpp:1690
No locals.
#3  QMessageLogger::fatal (this=this@entry=0x7ffc10d9a9e0, msg=msg@entry=0x7f2d9755ac28 "Cannot mix incompatible Qt library (version 0x%x) with this library (version 0x%x)") at global/qlogging.cpp:796
        message = <optimized out>
        ap = {{gp_offset = 32, fp_offset = 48, overflow_arg_area = 0x7ffc10d9a9e0, reg_save_area = 0x7ffc10d9a920}}
#4  0x00007f2d973dc01e in QObjectPrivate::QObjectPrivate (this=<optimized out>, version=<optimized out>) at kernel/qobject.cpp:215
        this = <optimized out>
        version = <optimized out>
#5  0x00007f2d70d8a05d in QSvgRendererPrivate::QSvgRendererPrivate (this=0x55a023938540) at qsvgrenderer.cpp:110
No locals.
#6  QSvgRenderer::QSvgRenderer (this=0x7ffc10d9aa90, filename=..., parent=0x0) at qsvgrenderer.cpp:137
No locals.
#7  0x00007f2d7034712c in QSvgIconEngine::addFile (this=this@entry=0x55a0234e6660, fileName=..., mode=mode@entry=QIcon::Normal, state=state@entry=QIcon::Off) at qsvgiconengine.cpp:239
        renderer = {<QObject> = {_vptr.QObject = 0x55a0234e6660, static staticMetaObject = {d = {superdata = 0x0, stringdata = 0x7f2d9755b720 <qt_meta_stringdata_QObject>, data = 0x7f2d9755b600 <qt_meta_data_QObject>, static_metacall = 0x7f2d973e6630 <QObject::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, extradata = 0x0}}, d_ptr = {d = 0x55a02317b010}, static staticQtMetaObject = {d = {superdata = 0x0, stringdata = 0x7f2d9755e3a0 <qt_meta_stringdata_Qt>, data = 0x7f2d9755b840 <qt_meta_data_Qt>, static_metacall = 0x0, relatedMetaObjects = 0x0, extradata = 0x0}}}, static staticMetaObject = {d = {superdata = 0x7f2d97860a00 <QObject::staticMetaObject>, stringdata = 0x7f2d70d94d00 <qt_meta_stringdata_QSvgRenderer>, data = 0x7f2d70d94b80 <qt_meta_data_QSvgRenderer>, static_metacall = 0x7f2d70d8a5a0 <QSvgRenderer::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, extradata = 0x0}}}
        fi = {d_ptr = {d = 0x55a0239c5590}}
        abs = {static null = {<No data fields>}, d = 0x55a0239a6660}
        state = QIcon::Off
        mode = QIcon::Normal
        fileName = @0x7ffc10d9ac20: {static null = {<No data fields>}, d = 0x55a0239a6660}
        this = 0x55a0234e6660
#8  0x00007f2d70345329 in QSvgIconPlugin::create (this=<optimized out>, file=...) at main.cpp:68
        engine = 0x55a0234e6660
#9  0x00007f2d96b45d42 in iconEngineFromSuffix (fileName=..., suffix=...) at image/qicon.cpp:1036
        index = 0
#10 0x00007f2d96b4ab7d in QIcon::addFile (this=0x7ffc10d9ac10, fileName=..., size=..., mode=QIcon::Normal, state=QIcon::Off) at image/qicon.cpp:1081
        info = {d_ptr = {d = 0x55a0239c53b0}}
        engine = <optimized out>
        atNxFileName = {static null = {<No data fields>}, d = 0x55a0239387b0}
        state = QIcon::Off
        this = 0x7ffc10d9ac10
        mode = QIcon::Normal
        size = @0x7ffc10d9abf0: {wd = -1, ht = -1}
        fileName = @0x7ffc10d9ac20: {static null = {<No data fields>}, d = 0x55a0239a6660}
#11 0x00007f2d96b4ad03 in QIcon::QIcon (this=<optimized out>, fileName=...) at image/qicon.cpp:716
No locals.
#12 0x00007f2d98dee4b6 in UISelectorWindow::prepareIcon (this=this@entry=0x55a0239c8690) at /build/virtualbox-SNwOtQ/virtualbox-5.2.4-dfsg/src/VBox/Frontends/VirtualBox/src/selector/UISelectorWindow.cpp:1371
        icon = {d = 0x0}
#13 0x00007f2d98dfad34 in UISelectorWindow::prepare (this=0x55a0239c8690) at /build/virtualbox-SNwOtQ/virtualbox-5.2.4-dfsg/src/VBox/Frontends/VirtualBox/src/selector/UISelectorWindow.cpp:1332
No locals.
#14 0x00007f2d98dfae12 in UISelectorWindow::create () at /build/virtualbox-SNwOtQ/virtualbox-5.2.4-dfsg/src/VBox/Frontends/VirtualBox/src/selector/UISelectorWindow.cpp:96
No locals.
#15 0x00007f2d98d296af in VBoxGlobal::showUI (this=<optimized out>) at /build/virtualbox-SNwOtQ/virtualbox-5.2.4-dfsg/src/VBox/Frontends/VirtualBox/src/globals/VBoxGlobal.cpp:4297
        vboxVersion = {static null = {<No data fields>}, d = 0x55a0239c4fb0}
#16 0x00007f2d990817a5 in VBoxGlobal::qt_static_metacall (_o=<optimized out>, _c=<optimized out>, _id=<optimized out>, _a=<optimized out>) at /build/virtualbox-SNwOtQ/virtualbox-5.2.4-dfsg/out/obj/VirtualBox/qtmoc/VBoxGlobal.cpp:137
        _t = <optimized out>
#17 0x00007f2d973df7e2 in QObject::event (this=0x55a023424800, e=<optimized out>) at kernel/qobject.cpp:1246
        mce = <optimized out>
        sw = {receiver = 0x55a023424800, previousSender = 0x0, currentSender = {sender = 0x0, signal = -1, ref = 1}, switched = true}
#18 0x00007f2d962ce59c in QApplicationPrivate::notify_helper (this=this@entry=0x55a0232ed810, receiver=receiver@entry=0x55a023424800, e=e@entry=0x55a02398d800) at kernel/qapplication.cpp:3722
        consumed = <optimized out>
#19 0x00007f2d962d5e64 in QApplication::notify (this=0x7ffc10d9b380, receiver=0x55a023424800, e=0x55a02398d800) at kernel/qapplication.cpp:3481
        w = 0x55a023424800
        extra = <optimized out>
        isProxyWidget = <optimized out>
        res = false
#20 0x00007f2d973b0178 in QCoreApplication::notifyInternal2 (receiver=0x55a023424800, event=event@entry=0x55a02398d800) at kernel/qcoreapplication.cpp:1018
        selfRequired = true
        result = false
        cbdata = {0x55a023424800, 0x55a02398d800, 0x7ffc10d9afcf}
        d = <optimized out>
        threadData = 0x55a0232ed980
        scopeLevelCounter = {threadData = 0x55a0232ed980}
#21 0x00007f2d973b28ed in QCoreApplication::sendEvent (event=0x55a02398d800, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:233
No locals.
#22 QCoreApplicationPrivate::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0, data=0x55a0232ed980) at kernel/qcoreapplication.cpp:1678
        e = 0x55a02398d800
        pe = <optimized out>
        r = <optimized out>
        unlocker = {m = <synthetic pointer><error reading variable>}
        event_deleter = {d = 0x55a02398d800}
        locker = {val = 94146273401264}
        startOffset = 0
        i = @0x55a0232ed9a4: 65
        cleanup = {receiver = 0x0, event_type = 0, data = 0x55a0232ed980, exceptionCaught = true}
#23 0x00007f2d973b2e78 in QCoreApplication::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0) at kernel/qcoreapplication.cpp:1532
        data = <optimized out>
#24 0x00007f2d974099e3 in postEventSourceDispatch (s=s@entry=0x55a023463f50) at kernel/qeventdispatcher_glib.cpp:276
        source = 0x55a023463f50
#25 0x00007f2d9347afb7 in g_main_dispatch (context=0x7f2d88005000) at ../../../../glib/gmain.c:3148
        dispatch = 0x7f2d974099d0 <postEventSourceDispatch(GSource*, GSourceFunc, gpointer)>
        prev_source = 0x0
        was_in_call = 0
        user_data = 0x0
        callback = 0x0
        cb_funcs = <optimized out>
        cb_data = 0x0
        need_destroy = <optimized out>
        source = 0x55a023463f50
        current = 0x55a02336e940
        i = 4
#26 g_main_context_dispatch (context=context@entry=0x7f2d88005000) at ../../../../glib/gmain.c:3813
No locals.
#27 0x00007f2d9347b1f0 in g_main_context_iterate (context=context@entry=0x7f2d88005000, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../../../../glib/gmain.c:3886
        max_priority = 0
        timeout = 0
        some_ready = 1
        nfds = <optimized out>
        allocated_nfds = 6
        fds = 0x55a023994210
#28 0x00007f2d9347b27c in g_main_context_iteration (context=0x7f2d88005000, may_block=may_block@entry=1) at ../../../../glib/gmain.c:3947
        retval = <optimized out>
#29 0x00007f2d9740900f in QEventDispatcherGlib::processEvents (this=0x55a02345cd20, flags=...) at kernel/qeventdispatcher_glib.cpp:423
        d = 0x55a023463ea0
        canWait = true
        savedFlags = {i = 0}
        result = <optimized out>
#30 0x00007f2d973ae1ca in QEventLoop::exec (this=this@entry=0x7ffc10d9b2b0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:212
        d = 0x55a0239dba30
        locker = {val = 94146273401456}
        ref = {d = 0x55a0239dba30, locker = @0x7ffc10d9b238, exceptionCaught = true}
#31 0x00007f2d973b7134 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1291
        threadData = 0x55a0232ed980
        eventLoop = {<QObject> = {_vptr.QObject = 0x7f2d978684c8 <vtable for QEventLoop+16>, static staticMetaObject = {d = {superdata = 0x0, stringdata = 0x7f2d9755b720 <qt_meta_stringdata_QObject>, data = 0x7f2d9755b600 <qt_meta_data_QObject>, static_metacall = 0x7f2d973e6630 <QObject::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, extradata = 0x0}}, d_ptr = {d = 0x55a0239dba30}, static staticQtMetaObject = {d = {superdata = 0x0, stringdata = 0x7f2d9755e3a0 <qt_meta_stringdata_Qt>, data = 0x7f2d9755b840 <qt_meta_data_Qt>, static_metacall = 0x0, relatedMetaObjects = 0x0, extradata = 0x0}}}, static staticMetaObject = {d = {superdata = 0x7f2d97860a00 <QObject::staticMetaObject>, stringdata = 0x7f2d97556300 <qt_meta_stringdata_QEventLoop>, data = 0x7f2d975562a0 <qt_meta_data_QEventLoop>, static_metacall = 0x7f2d973adec0 <QEventLoop::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, extradata = 0x0}}}
        returnCode = <optimized out>
#32 0x00007f2d96ab635c in QGuiApplication::exec () at kernel/qguiapplication.cpp:1679
No locals.
#33 0x00007f2d962ce4f5 in QApplication::exec () at kernel/qapplication.cpp:2910
No locals.
#34 0x00007f2d98c98e93 in TrustedMain (argc=<optimized out>, argv=<optimized out>) at /build/virtualbox-SNwOtQ/virtualbox-5.2.4-dfsg/src/VBox/Frontends/VirtualBox/src/main.cpp:485
        fHelpShown = false
        a = {<QGuiApplication> = {<QCoreApplication> = {<QObject> = {_vptr.QObject = 0x7f2d9698ffd0 <vtable for QApplication+16>, static staticMetaObject = {d = {superdata = 0x0, stringdata = 0x7f2d9755b720 <qt_meta_stringdata_QObject>, data = 0x7f2d9755b600 <qt_meta_data_QObject>, static_metacall = 0x7f2d973e6630 <QObject::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, extradata = 0x0}}, d_ptr = {d = 0x55a0232ed810}, static staticQtMetaObject = {d = {superdata = 0x0, stringdata = 0x7f2d9755e3a0 <qt_meta_stringdata_Qt>, data = 0x7f2d9755b840 <qt_meta_data_Qt>, static_metacall = 0x0, relatedMetaObjects = 0x0, extradata = 0x0}}}, static staticMetaObject = {d = {superdata = 0x7f2d97860a00 <QObject::staticMetaObject>, stringdata = 0x7f2d97556960 <qt_meta_stringdata_QCoreApplication>, data = 0x7f2d97556840 <qt_meta_data_QCoreApplication>, static_metacall = 0x7f2d973b1bb0 <QCoreApplication::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, extradata = 0x0}}, static self = 0x7ffc10d9b380}, static staticMetaObject = {d = {superdata = 0x7f2d97868660 <QCoreApplication::staticMetaObject>, stringdata = 0x7f2d96e4f6e0 <qt_meta_stringdata_QGuiApplication>, data = 0x7f2d96e4f480 <qt_meta_data_QGuiApplication>, static_metacall = 0x7f2d96ac0e20 <QGuiApplication::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, extradata = 0x0}}}, static staticMetaObject = {d = {superdata = 0x7f2d97111200 <QGuiApplication::staticMetaObject>, stringdata = 0x7f2d96642720 <qt_meta_stringdata_QApplication>, data = 0x7f2d966425a0 <qt_meta_data_QApplication>, static_metacall = 0x7f2d962d3530 <QApplication::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, extradata = 0x0}}}
        fontDataBase = {static staticMetaObject = {d = {superdata = 0x0, stringdata = 0x7f2d96e8c7e0 <qt_meta_stringdata_QFontDatabase>, data = 0x7f2d96e8c640 <qt_meta_data_QFontDatabase>, static_metacall = 0x0, relatedMetaObjects = 0x0, extradata = 0x0}}, d = 0x7f2d97121780 <(anonymous namespace)::Q_QGS_privateDb::innerFunction()::holder>}
        currentFamily = {static null = {<No data fields>}, d = 0x55a0234520c0}
        isSubScaleable = true
        isCurrentScaleable = true
        subFamily = {static null = {<No data fields>}, d = 0x55a0234520c0}
        iResultCode = 1
#35 0x00007f2da36211c1 in __libc_start_main (main=0x55a021f6c7b0 <main(int, char**, char**)>, argc=1, argv=0x7ffc10d9b4d8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7ffc10d9b4c8) at ../csu/libc-start.c:308
        result = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {0, 7313289449763357345, 94146252949744, 140720591189200, 0, 0, 3586664500010533537, 3487196971051238049}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x7ffc10d9b4e8, 0x7f2da402c150}, data = {prev = 0x0, cleanup = 0x0, canceltype = 282703080}}}
        not_first_call = <optimized out>
#36 0x000055a021f6c91a in _start ()
No symbol table info available.