. Thread 38 (LWP 5179): #0 pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185 No locals. #1 0x00007fc93366512a in rtSemEventMultiPosixWaitIndefinite (pThis=0x7fc8fcacbfc0, pSrcPos=0x0, fFlags=) at /build/virtualbox-UZ0NZi/virtualbox-5.1.6-dfsg/src/VBox/Runtime/r3/linux/../posix/semeventmulti-posix.cpp:429 u32State = hThreadSelf = 0x7fc8fcacc0a0 rc = #2 0x00007fc933665976 in rtSemEventMultiPosixWait (pSrcPos=0x0, uTimeout=, fFlags=, hEventMultiSem=) at /build/virtualbox-UZ0NZi/virtualbox-5.1.6-dfsg/src/VBox/Runtime/r3/linux/../posix/semeventmulti-posix.cpp:602 uTimeout = fFlags = hEventMultiSem = pThis = u32 = #3 RTSemEventMultiWaitEx (hEventMultiSem=, fFlags=, uTimeout=) at /build/virtualbox-UZ0NZi/virtualbox-5.1.6-dfsg/src/VBox/Runtime/r3/linux/../posix/semeventmulti-posix.cpp:611 No locals. #4 0x00007fc9006c0aae in PDMR3ThreadIAmSuspending (pThread=pThread@entry=0x7fc8fcacbf40) at /build/virtualbox-UZ0NZi/virtualbox-5.1.6-dfsg/src/VBox/VMM/VMMR3/PDMThread.cpp:665 enmState = rc = #5 0x00007fc9006c0bc2 in pdmR3ThreadMain (Thread=0x7fc8fcacc0a0, pvUser=0x7fc8fcacbf40) at /build/virtualbox-UZ0NZi/virtualbox-5.1.6-dfsg/src/VBox/VMM/VMMR3/PDMThread.cpp:817 pThread = 0x7fc8fcacbf40 pUVM = 0x7fc8d75ff000 rc = 0 #6 0x00007fc9335d836c in rtThreadMain (pThread=pThread@entry=0x7fc8fcacc0a0, NativeThread=NativeThread@entry=140499788998400, pszThreadName=pszThreadName@entry=0x7fc8fcacc980 "HOSTRES") at /build/virtualbox-UZ0NZi/virtualbox-5.1.6-dfsg/src/VBox/Runtime/common/misc/thread.cpp:717 rc = #7 0x00007fc933661d4b in rtThreadNativeMain (pvArgs=0x7fc8fcacc0a0) at /build/virtualbox-UZ0NZi/virtualbox-5.1.6-dfsg/src/VBox/Runtime/r3/posix/thread-posix.cpp:327 pThread = 0x7fc8fcacc0a0 Self = 140499788998400 rc = __PRETTY_FUNCTION__ = "void* rtThreadNativeMain(void*)" #8 0x00007fc933f1870a in start_thread (arg=0x7fc8a803a700) at pthread_create.c:333 __res = pd = 0x7fc8a803a700 now = unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140499788998400, 1944588634329230209, 0, 140500931527743, 140499788999104, 140499788998400, -1914662024819463295, -1914321296721794175}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}} not_first_call = pagesize_m1 = sp = freesize = __PRETTY_FUNCTION__ = "start_thread" #9 0x00007fc933a490af in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105 No locals. . Thread 37 (LWP 5176): #0 pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185 No locals. #1 0x00007fc93366512a in rtSemEventMultiPosixWaitIndefinite (pThis=0x7fc8fcab3760, pSrcPos=0x0, fFlags=) at /build/virtualbox-UZ0NZi/virtualbox-5.1.6-dfsg/src/VBox/Runtime/r3/linux/../posix/semeventmulti-posix.cpp:429 u32State = hThreadSelf = 0x7fc8fcab3840 rc = #2 0x00007fc933665976 in rtSemEventMultiPosixWait (pSrcPos=0x0, uTimeout=, fFlags=, hEventMultiSem=) at /build/virtualbox-UZ0NZi/virtualbox-5.1.6-dfsg/src/VBox/Runtime/r3/linux/../posix/semeventmulti-posix.cpp:602 uTimeout = fFlags = hEventMultiSem = pThis = u32 = #3 RTSemEventMultiWaitEx (hEventMultiSem=, fFlags=, uTimeout=) at /build/virtualbox-UZ0NZi/virtualbox-5.1.6-dfsg/src/VBox/Runtime/r3/linux/../posix/semeventmulti-posix.cpp:611 No locals. #4 0x00007fc9006c0aae in PDMR3ThreadIAmSuspending (pThread=pThread@entry=0x7fc8fcab36e0) at /build/virtualbox-UZ0NZi/virtualbox-5.1.6-dfsg/src/VBox/VMM/VMMR3/PDMThread.cpp:665 enmState = rc = #5 0x00007fc9006c0bc2 in pdmR3ThreadMain (Thread=0x7fc8fcab3840, pvUser=0x7fc8fcab36e0) at /build/virtualbox-UZ0NZi/virtualbox-5.1.6-dfsg/src/VBox/VMM/VMMR3/PDMThread.cpp:817 pThread = 0x7fc8fcab36e0 pUVM = 0x7fc8d75ff000 rc = 0 #6 0x00007fc9335d836c in rtThreadMain (pThread=pThread@entry=0x7fc8fcab3840, NativeThread=NativeThread@entry=140499816015616, pszThreadName=pszThreadName@entry=0x7fc8fcab4120 "Port1") at /build/virtualbox-UZ0NZi/virtualbox-5.1.6-dfsg/src/VBox/Runtime/common/misc/thread.cpp:717 rc = #7 0x00007fc933661d4b in rtThreadNativeMain (pvArgs=0x7fc8fcab3840) at /build/virtualbox-UZ0NZi/virtualbox-5.1.6-dfsg/src/VBox/Runtime/r3/posix/thread-posix.cpp:327 pThread = 0x7fc8fcab3840 Self = 140499816015616 rc = __PRETTY_FUNCTION__ = "void* rtThreadNativeMain(void*)" #8 0x00007fc933f1870a in start_thread (arg=0x7fc8a99fe700) at pthread_create.c:333 __res = pd = 0x7fc8a99fe700 now = unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140499816015616, 1944588634329230209, 0, 140500931528543, 140499816016320, 140499816015616, -1914660751361660031, -1914321296721794175}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}} not_first_call = pagesize_m1 = sp = freesize = __PRETTY_FUNCTION__ = "start_thread" #9 0x00007fc933a490af in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105 No locals. . Thread 36 (LWP 5172): #0 pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185 No locals. #1 0x00007fc93366512a in rtSemEventMultiPosixWaitIndefinite (pThis=0x7fc8fc9df2a0, pSrcPos=0x0, fFlags=) at /build/virtualbox-UZ0NZi/virtualbox-5.1.6-dfsg/src/VBox/Runtime/r3/linux/../posix/semeventmulti-posix.cpp:429 u32State = hThreadSelf = 0x7fc8fc9df380 rc = #2 0x00007fc933665976 in rtSemEventMultiPosixWait (pSrcPos=0x0, uTimeout=, fFlags=, hEventMultiSem=) at /build/virtualbox-UZ0NZi/virtualbox-5.1.6-dfsg/src/VBox/Runtime/r3/linux/../posix/semeventmulti-posix.cpp:602 uTimeout = fFlags = hEventMultiSem = pThis = u32 = #3 RTSemEventMultiWaitEx (hEventMultiSem=, fFlags=, uTimeout=) at /build/virtualbox-UZ0NZi/virtualbox-5.1.6-dfsg/src/VBox/Runtime/r3/linux/../posix/semeventmulti-posix.cpp:611 No locals. #4 0x00007fc9006c0aae in PDMR3ThreadIAmSuspending (pThread=pThread@entry=0x7fc8fc9df220) at /build/virtualbox-UZ0NZi/virtualbox-5.1.6-dfsg/src/VBox/VMM/VMMR3/PDMThread.cpp:665 enmState = rc = #5 0x00007fc9006c0bc2 in pdmR3ThreadMain (Thread=0x7fc8fc9df380, pvUser=0x7fc8fc9df220) at /build/virtualbox-UZ0NZi/virtualbox-5.1.6-dfsg/src/VBox/VMM/VMMR3/PDMThread.cpp:817 pThread = 0x7fc8fc9df220 pUVM = 0x7fc8d75ff000 rc = 0 #6 0x00007fc9335d836c in rtThreadMain (pThread=pThread@entry=0x7fc8fc9df380, NativeThread=NativeThread@entry=140500529477376, pszThreadName=pszThreadName@entry=0x7fc8fc9dfc60 "PDMNsTx") at /build/virtualbox-UZ0NZi/virtualbox-5.1.6-dfsg/src/VBox/Runtime/common/misc/thread.cpp:717 rc = #7 0x00007fc933661d4b in rtThreadNativeMain (pvArgs=0x7fc8fc9df380) at /build/virtualbox-UZ0NZi/virtualbox-5.1.6-dfsg/src/VBox/Runtime/r3/posix/thread-posix.cpp:327 pThread = 0x7fc8fc9df380 Self = 140500529477376 rc = __PRETTY_FUNCTION__ = "void* rtThreadNativeMain(void*)" #8 0x00007fc933f1870a in start_thread (arg=0x7fc8d4267700) at pthread_create.c:333 __res = pd = 0x7fc8d4267700 now = unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140500529477376, 1944588634329230209, 0, 140500931529455, 140500529478080, 140500529477376, -1914811304460899455, -1914321296721794175}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}} not_first_call = pagesize_m1 = sp = freesize = __PRETTY_FUNCTION__ = "start_thread" #9 0x00007fc933a490af in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105 No locals. . Thread 35 (LWP 5180): #0 pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185 No locals. #1 0x00007fc93366512a in rtSemEventMultiPosixWaitIndefinite (pThis=0x7fc8fcacce30, pSrcPos=0x0, fFlags=) at /build/virtualbox-UZ0NZi/virtualbox-5.1.6-dfsg/src/VBox/Runtime/r3/linux/../posix/semeventmulti-posix.cpp:429 u32State = hThreadSelf = 0x7fc8fcaccf10 rc = #2 0x00007fc933665976 in rtSemEventMultiPosixWait (pSrcPos=0x0, uTimeout=, fFlags=, hEventMultiSem=) at /build/virtualbox-UZ0NZi/virtualbox-5.1.6-dfsg/src/VBox/Runtime/r3/linux/../posix/semeventmulti-posix.cpp:602 uTimeout = fFlags = hEventMultiSem = pThis = u32 = #3 RTSemEventMultiWaitEx (hEventMultiSem=, fFlags=, uTimeout=) at /build/virtualbox-UZ0NZi/virtualbox-5.1.6-dfsg/src/VBox/Runtime/r3/linux/../posix/semeventmulti-posix.cpp:611 No locals. #4 0x00007fc9006c0aae in PDMR3ThreadIAmSuspending (pThread=pThread@entry=0x7fc8fcaccdb0) at /build/virtualbox-UZ0NZi/virtualbox-5.1.6-dfsg/src/VBox/VMM/VMMR3/PDMThread.cpp:665 enmState = rc = #5 0x00007fc9006c0bc2 in pdmR3ThreadMain (Thread=0x7fc8fcaccf10, pvUser=0x7fc8fcaccdb0) at /build/virtualbox-UZ0NZi/virtualbox-5.1.6-dfsg/src/VBox/VMM/VMMR3/PDMThread.cpp:817 pThread = 0x7fc8fcaccdb0 pUVM = 0x7fc8d75ff000 rc = 0 #6 0x00007fc9335d836c in rtThreadMain (pThread=pThread@entry=0x7fc8fcaccf10, NativeThread=NativeThread@entry=140499788928768, pszThreadName=pszThreadName@entry=0x7fc8fcacd7f0 "NAT") at /build/virtualbox-UZ0NZi/virtualbox-5.1.6-dfsg/src/VBox/Runtime/common/misc/thread.cpp:717 rc = #7 0x00007fc933661d4b in rtThreadNativeMain (pvArgs=0x7fc8fcaccf10) at /build/virtualbox-UZ0NZi/virtualbox-5.1.6-dfsg/src/VBox/Runtime/r3/posix/thread-posix.cpp:327 pThread = 0x7fc8fcaccf10 Self = 140499788928768 rc = __PRETTY_FUNCTION__ = "void* rtThreadNativeMain(void*)" #8 0x00007fc933f1870a in start_thread (arg=0x7fc8a8029700) at pthread_create.c:333 __res = pd = 0x7fc8a8029700 now = unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140499788928768, 1944588634329230209, 0, 140500931527743, 140499788929472, 140499788928768, -1914662016766399615, -1914321296721794175}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}} not_first_call = pagesize_m1 = sp = freesize = __PRETTY_FUNCTION__ = "start_thread" #9 0x00007fc933a490af in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105 No locals. . Thread 34 (LWP 5159): #0 pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185 No locals. #1 0x00007fc93366512a in rtSemEventMultiPosixWaitIndefinite (pThis=0x7fc8c4000b10, pSrcPos=0x0, fFlags=) at /build/virtualbox-UZ0NZi/virtualbox-5.1.6-dfsg/src/VBox/Runtime/r3/linux/../posix/semeventmulti-posix.cpp:429 u32State = hThreadSelf = 0x7fc8c4000c60 rc = #2 0x00007fc933665976 in rtSemEventMultiPosixWait (pSrcPos=0x0, uTimeout=, fFlags=, hEventMultiSem=) at /build/virtualbox-UZ0NZi/virtualbox-5.1.6-dfsg/src/VBox/Runtime/r3/linux/../posix/semeventmulti-posix.cpp:602 uTimeout = fFlags = hEventMultiSem = pThis = u32 = #3 RTSemEventMultiWaitEx (hEventMultiSem=, fFlags=, uTimeout=) at /build/virtualbox-UZ0NZi/virtualbox-5.1.6-dfsg/src/VBox/Runtime/r3/linux/../posix/semeventmulti-posix.cpp:611 No locals. #4 0x00007fc8efc6096c in HGCMThread::MsgGet (this=0x7fc8c4000a30, ppMsg=0x7fc8ec255e78) at /build/virtualbox-UZ0NZi/virtualbox-5.1.6-dfsg/src/VBox/Main/src-client/HGCMThread.cpp:543 No locals. #5 0x00007fc8efc60dd0 in hgcmMsgGet (hThread=hThread@entry=2147483649, ppMsg=ppMsg@entry=0x7fc8ec255e78) at /build/virtualbox-UZ0NZi/virtualbox-5.1.6-dfsg/src/VBox/Main/src-client/HGCMThread.cpp:799 rc = 0 pThread = 0x7fc8c4000a30 #6 0x00007fc8efc630eb in hgcmThread (ThreadHandle=2147483649, pvUser=) at /build/virtualbox-UZ0NZi/virtualbox-5.1.6-dfsg/src/VBox/Main/src-client/HGCM.cpp:1812 pMsgCore = 0x7fc8fca50320 rc = fQuit = false #7 0x00007fc8efc60412 in hgcmWorkerThreadFunc (ThreadSelf=, pvUser=0x7fc8c4000a30) at /build/virtualbox-UZ0NZi/virtualbox-5.1.6-dfsg/src/VBox/Main/src-client/HGCMThread.cpp:194 rc = 0 pThread = 0x7fc8c4000a30 __PRETTY_FUNCTION__ = "int hgcmWorkerThreadFunc(RTTHREAD, void*)" #8 0x00007fc9335d836c in rtThreadMain (pThread=pThread@entry=0x7fc8c4000c60, NativeThread=NativeThread@entry=140500932060928, pszThreadName=pszThreadName@entry=0x7fc8c4001540 "MainHGCMthread") at /build/virtualbox-UZ0NZi/virtualbox-5.1.6-dfsg/src/VBox/Runtime/common/misc/thread.cpp:717 rc = #9 0x00007fc933661d4b in rtThreadNativeMain (pvArgs=0x7fc8c4000c60) at /build/virtualbox-UZ0NZi/virtualbox-5.1.6-dfsg/src/VBox/Runtime/r3/posix/thread-posix.cpp:327 pThread = 0x7fc8c4000c60 Self = 140500932060928 rc = __PRETTY_FUNCTION__ = "void* rtThreadNativeMain(void*)" #10 0x00007fc933f1870a in start_thread (arg=0x7fc8ec256700) at pthread_create.c:333 __res = pd = 0x7fc8ec256700 now = unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140500932060928, 1944588634329230209, 0, 140500932586207, 140500932061632, 140500932060928, -1914793702074307711, -1914321296721794175}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}} not_first_call = pagesize_m1 = sp = freesize = __PRETTY_FUNCTION__ = "start_thread" #11 0x00007fc933a490af in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105 No locals. . Thread 33 (LWP 5174): #0 pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185 No locals. #1 0x00007fc933664c20 in rtSemEventWait (fAutoResume=true, cMillies=, hEventSem=0x7fc8fca5f6c0) at /build/virtualbox-UZ0NZi/virtualbox-5.1.6-dfsg/src/VBox/Runtime/r3/linux/../posix/semevent-posix.cpp:369 hThreadSelf = 0x7fc8fca5fb60 rc = pThis = 0x7fc8fca5f6c0 u32 = #2 RTSemEventWait (hEventSem=0x7fc8fca5f6c0, cMillies=) at /build/virtualbox-UZ0NZi/virtualbox-5.1.6-dfsg/src/VBox/Runtime/r3/linux/../posix/semevent-posix.cpp:482 No locals. #3 0x00007fc9007cbdac in pdmacFileAioMgrNormal (hThreadSelf=, pvUser=0x7fc8fca5f5f0) at /build/virtualbox-UZ0NZi/virtualbox-5.1.6-dfsg/src/VBox/VMM/VMMR3/PDMAsyncCompletionFileNormal.cpp:1629 rc = pAioMgr = 0x7fc8fca5f5f0 uMillisEnd = 3778466 __PRETTY_FUNCTION__ = "int pdmacFileAioMgrNormal(RTTHREAD, void*)" #4 0x00007fc9335d836c in rtThreadMain (pThread=pThread@entry=0x7fc8fca5fb60, NativeThread=NativeThread@entry=140499817072384, pszThreadName=pszThreadName@entry=0x7fc8fca60440 "AioMgr0-N") at /build/virtualbox-UZ0NZi/virtualbox-5.1.6-dfsg/src/VBox/Runtime/common/misc/thread.cpp:717 rc = #5 0x00007fc933661d4b in rtThreadNativeMain (pvArgs=0x7fc8fca5fb60) at /build/virtualbox-UZ0NZi/virtualbox-5.1.6-dfsg/src/VBox/Runtime/r3/posix/thread-posix.cpp:327 pThread = 0x7fc8fca5fb60 Self = 140499817072384 rc = __PRETTY_FUNCTION__ = "void* rtThreadNativeMain(void*)" #6 0x00007fc933f1870a in start_thread (arg=0x7fc8a9b00700) at pthread_create.c:333 __res = pd = 0x7fc8a9b00700 now = unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140499817072384, 1944588634329230209, 0, 140500931526975, 140499817073088, 140499817072384, -1914660614996448383, -1914321296721794175}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}} not_first_call = pagesize_m1 = sp = freesize = __PRETTY_FUNCTION__ = "start_thread" #7 0x00007fc933a490af in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105 No locals. . Thread 32 (LWP 5151): #0 pthread_cond_timedwait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:225 No locals. #1 0x00007fc933664b4e in rtSemEventWait (fAutoResume=true, cMillies=999, hEventSem=0x7fc8f400a740) at /build/virtualbox-UZ0NZi/virtualbox-5.1.6-dfsg/src/VBox/Runtime/r3/linux/../posix/semevent-posix.cpp:465 hThreadSelf = 0x7fc8f400c180 ts = {tv_sec = 1476110026, tv_nsec = 357194674} rc = pThis = 0x7fc8f400a740 u32 = #2 RTSemEventWait (hEventSem=0x7fc8f400a740, cMillies=999) at /build/virtualbox-UZ0NZi/virtualbox-5.1.6-dfsg/src/VBox/Runtime/r3/linux/../posix/semevent-posix.cpp:482 No locals. #3 0x00007fc93362af60 in rtTimerLRThread (hThreadSelf=, pvUser=0x7fc8f400a6f0) at /build/virtualbox-UZ0NZi/virtualbox-5.1.6-dfsg/src/VBox/Runtime/generic/timerlr-generic.cpp:340 cNanoSeconds = u64NanoTS = rc = pThis = 0x7fc8f400a6f0 #4 0x00007fc9335d836c in rtThreadMain (pThread=pThread@entry=0x7fc8f400c180, NativeThread=NativeThread@entry=140500933117696, pszThreadName=pszThreadName@entry=0x7fc8f400ca60 "TimerLR") at /build/virtualbox-UZ0NZi/virtualbox-5.1.6-dfsg/src/VBox/Runtime/common/misc/thread.cpp:717 rc = #5 0x00007fc933661d4b in rtThreadNativeMain (pvArgs=0x7fc8f400c180) at /build/virtualbox-UZ0NZi/virtualbox-5.1.6-dfsg/src/VBox/Runtime/r3/posix/thread-posix.cpp:327 pThread = 0x7fc8f400c180 Self = 140500933117696 rc = __PRETTY_FUNCTION__ = "void* rtThreadNativeMain(void*)" #6 0x00007fc933f1870a in start_thread (arg=0x7fc8ec358700) at pthread_create.c:333 __res = pd = 0x7fc8ec358700 now = unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140500933117696, 1944588634329230209, 0, 140501533849279, 140500933118400, 140500933117696, -1914793565709096063, -1914321296721794175}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}} not_first_call = pagesize_m1 = sp = freesize = __PRETTY_FUNCTION__ = "start_thread" #7 0x00007fc933a490af in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105 No locals. . Thread 31 (LWP 5146): #0 pthread_cond_timedwait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:225 No locals. #1 0x00007fc928e13b59 in pt_TimedWait (cv=cv@entry=0x557a539479a8, ml=0x557a539479f8, timeout=timeout@entry=1358724465) at /build/virtualbox-UZ0NZi/virtualbox-5.1.6-dfsg/src/libs/xpcom18a4/nsprpub/pr/src/pthreads/ptsynch.c:267 rv = now = {tv_sec = 1476110025, tv_usec = 358156} tmo = {tv_sec = 1477468749, tv_nsec = 823156000} ticks = #2 0x00007fc928e13fb6 in VBoxNsprPR_WaitCondVar (cvar=0x557a539479a0, timeout=1358724465) at /build/virtualbox-UZ0NZi/virtualbox-5.1.6-dfsg/src/libs/xpcom18a4/nsprpub/pr/src/pthreads/ptsynch.c:394 rv = thred = 0x7fc8e8002990 #3 0x00007fc928e14253 in VBoxNsprPR_Wait (mon=mon@entry=0x557a539479f0, timeout=) at /build/virtualbox-UZ0NZi/virtualbox-5.1.6-dfsg/src/libs/xpcom18a4/nsprpub/pr/src/pthreads/ptsynch.c:571 rv = -516 saved_entries = 1 saved_owner = 140500986922752 #4 0x00007fc9016a4cbb in Wait (interval=, this=) at /build/virtualbox-UZ0NZi/virtualbox-5.1.6-dfsg/src/libs/xpcom18a4/xpcom/threads/nsAutoLock.h:281 No locals. #5 WaitTarget (aTarget=..., aTimeout=, aMsg=aMsg@entry=0x7fc8ef6a7908, aSelector=aSelector@entry=0x7fc9016a38b8 , aArg=aArg@entry=0x7fc8ef6a7910) at /build/virtualbox-UZ0NZi/virtualbox-5.1.6-dfsg/src/libs/xpcom18a4/ipc/ipcd/client/src/ipcdclient.cpp:491 t = td = {mRawPtr = 0x557a539fa950} timeStart = timeEnd = 4294967295 lastChecked = 0x0 beforeLastChecked = rv = 2147500036 mon = { = {}, mMonitor = 0x557a539479f0, mLockCount = 1} #6 0x00007fc9016a5a86 in IPC_WaitMessage (aSenderID=aSenderID@entry=4294967295, aTarget=..., aObserver=aObserver@entry=0x7fc8ef6a7b38, aConsumer=aConsumer@entry=0x7fc8ef6a7b30, aTimeout=aTimeout@entry=4294967295) at /build/virtualbox-UZ0NZi/virtualbox-5.1.6-dfsg/src/libs/xpcom18a4/ipc/ipcd/client/src/ipcdclient.cpp:1142 data = {senderID = 4294967295, observer = 0x7fc8ef6a7b38, senderDead = 0} msg = 0x0 rv = #7 0x00007fc9016ab6c4 in DConnectStub::CallMethod (this=0x557a53adde20, aMethodIndex=, aInfo=, aParams=) at /build/virtualbox-UZ0NZi/virtualbox-5.1.6-dfsg/src/libs/xpcom18a4/ipc/ipcd/extensions/dconnect/src/ipcDConnectService.cpp:2656 rv = 0 es = { = {mRawPtr = 0x557a53a26220}, } em = { = {mRawPtr = 0x7fc8e80013c0}, } dConnect = i = writer = {mBuf = 0x7fc8e8002eb0 "\003", mBufPtr = 0x7fc8e8002ece "", mBufEnd = 0x7fc8e8002ee0 "", mCapacity = 48, mError = 0} invoke = { = {opcode_major = 3 '\003', opcode_minor = 0 '\000', flags = 0, request_index = 738}, instance = 140269739576816, method_index = 8} wrappers = {_vptr.nsVoidArray = 0x7fc92905dbb8 , mImpl = 0x7fc8e8002ef0} ipc_dmo_for_scopekDConnectTargetID = {mTarget = @0x7fc9016b19b0} completion = { = { = { = {_vptr.nsISupports = 0x7fc9018b6f80 }, }, mSelector = { = { = {_vptr.nsISupports = 0x7fc9018b6f50 }, }, mPeer = 2, mOpCodeMajor = 5 '\005', mRequestIndex = 738}}, mReply = 0x0, mParamsLen = 0} reader = {mBuf = 0x7fc8e800301c "zU", mBufEnd = 0x7fc8e8003024 "", mBufPtr = 0x7fc8e8003024 "", mError = 0} #8 0x00007fc928df44fd in PrepareAndDispatch (self=0x557a53adde20, methodIndex=, args=, gpregs=0x7fc8ef6a7cd0, fpregs=0x7fc8ef6a7d00) at /build/virtualbox-UZ0NZi/virtualbox-5.1.6-dfsg/src/libs/xpcom18a4/xpcom/reflect/xptcall/src/md/unix/xptcstubs_x86_64_linux.cpp:156 paramBuffer = {{val = {i8 = 64 '@', i16 = -11968, i32 = 1402196288, i64 = 93983876567360, u8 = 64 '@', u16 = 53568, u32 = 1402196288, u64 = 93983876567360, f = 1.26974165e+12, d = 4.6434204674916716e-310, b = 1402196288, c = 64 '@', wc = 53568, p = 0x557a5393d140}}, {val = {i8 = -12 '\364', i16 = 500, i32 = 500, i64 = 140501265154548, u8 = 244 '\364', u16 = 500, u32 = 500, u64 = 140501265154548, f = 7.00649232e-43, d = 6.9416848310093986e-310, b = 500, c = -12 '\364', wc = 500, p = 0x7fc9000001f4}}, {val = {i8 = 80 'P', i16 = 32080, i32 = -278233776, i64 = 140500986920272, u8 = 80 'P', u16 = 32080, u32 = 4016733520, u64 = 140500986920272, f = -7.25709858e+28, d = 6.9416710844096719e-310, b = -278233776, c = 80 'P', wc = 32080, p = 0x7fc8ef6a7d50}}, {val = {i8 = 0 '\000', i16 = 26368, i32 = 553871104, i64 = 553871104, u8 = 0 '\000', u16 = 26368, u32 = 553871104, u64 = 553871104, f = 4.45208458e-19, d = 2.7364868471056423e-315, b = 553871104, c = 0 '\000', wc = 26368, p = 0x21036700}}, {val = {i8 = 30 '\036', i16 = -32226, i32 = 685670942, i64 = 140501950824990, u8 = 30 '\036', u16 = 33310, u32 = 685670942, u64 = 140501950824990, f = 2.47033805e-14, d = 6.9417187076303747e-310, b = 685670942, c = 30 '\036', wc = 33310, p = 0x7fc928de821e > >::s_MatchEntry(PLDHashTable*, PLDHashEntryHdr const*, void const*)>}}, {val = {i8 = 47 '/', i16 = -2513, i32 = 685766191, i64 = 140501950920239, u8 = 47 '/', u16 = 63023, u32 = 685766191, u64 = 140501950920239, f = 2.48647386e-14, d = 6.9417187123363006e-310, b = 685766191, c = 47 '/', wc = 63023, p = 0x7fc928dff62f }}, {val = {i8 = -16 '\360', i16 = 31984, i32 = 708345072, i64 = 140501973499120, u8 = 240 '\360', u16 = 31984, u32 = 708345072, u64 = 140501973499120, f = 1.63858293e-13, d = 6.9417198278812429e-310, b = 708345072, c = -16 '\360', wc = 31984, p = 0x7fc92a387cf0 }}, {val = {i8 = 61 '=', i16 = -2499, i32 = 685766205, i64 = 140501950920253, u8 = 61 '=', u16 = 63037, u32 = 685766205, u64 = 140501950920253, f = 2.48647623e-14, d = 6.9417187123369923e-310, b = 685766205, c = 61 '=', wc = 63037, p = 0x7fc928dff63d }}, {val = {i8 = 80 'P', i16 = 20048, i32 = 1402097232, i64 = 93983876468304, u8 = 80 'P', u16 = 20048, u32 = 1402097232, u64 = 93983876468304, f = 1.25675818e+12, d = 4.6434204625976549e-310, b = 1402097232, c = 80 'P', wc = 20048, p = 0x557a53924e50}}, {val = {i8 = 52 '4', i16 = 29492, i32 = 685667124, i64 = 140501950821172, u8 = 52 '4', u16 = 29492, u32 = 685667124, u64 = 140501950821172, f = 2.46969125e-14, d = 6.9417187074417404e-310, b = 685667124, c = 52 '4', wc = 29492, p = 0x7fc928de7334 }}, {val = {i8 = 16 '\020', i16 = -496, i32 = 1402207760, i64 = 93983876578832, u8 = 16 '\020', u16 = 65040, u32 = 1402207760, u64 = 93983876578832, f = 1.27124531e+12, d = 4.6434204680584637e-310, b = 1402207760, c = 16 '\020', wc = 65040, p = 0x557a5393fe10}}, {val = {i8 = -16 '\360', i16 = -26896, i32 = 1402246896, i64 = 93983876617968, u8 = 240 '\360', u16 = 38640, u32 = 1402246896, u64 = 93983876617968, f = 1.27637494e+12, d = 4.643420469992039e-310, b = 1402246896, c = -16 '\360', wc = 38640, p = 0x557a539496f0}}, {val = {i8 = -64 '\300', i16 = 31936, i32 = -278233920, i64 = 140500986920128, u8 = 192 '\300', u16 = 31936, u32 = 4016733376, u64 = 140500986920128, f = -7.25703058e+28, d = 6.9416710844025574e-310, b = -278233920, c = -64 '\300', wc = 31936, p = 0x7fc8ef6a7cc0}}, {val = {i8 = 61 '=', i16 = -2499, i32 = 685766205, i64 = 140501950920253, u8 = 61 '=', u16 = 63037, u32 = 685766205, u64 = 140501950920253, f = 2.48647623e-14, d = 6.9417187123369923e-310, b = 685766205, c = 61 '=', wc = 63037, p = 0x7fc928dff63d }}, {val = {i8 = -64 '\300', i16 = 31936, i32 = -278233920, i64 = 140500986920128, u8 = 192 '\300', u16 = 31936, u32 = 4016733376, u64 = 140500986920128, f = -7.25703058e+28, d = 6.9416710844025574e-310, b = -278233920, c = -64 '\300', wc = 31936, p = 0x7fc8ef6a7cc0}}, {val = {i8 = 52 '4', i16 = 29492, i32 = 685667124, i64 = 140501950821172, u8 = 52 '4', u16 = 29492, u32 = 685667124, u64 = 140501950821172, f = 2.46969125e-14, d = 6.9417187074417404e-310, b = 685667124, c = 52 '4', wc = 29492, p = 0x7fc928de7334 }}} dispatchParams = 0x7fc8ef6a7c00 iface_info = info = 0x557a53a169b0 paramCount = 3 i = result = 2147500037 ap = 0x7fc8ef6a7d50 nr_gpr = nr_fpr = value = #9 0x00007fc928df3a61 in SharedStub () from /tmp/apport_sandbox_UWlQ8N/usr/lib/virtualbox/VBoxXPCOM.so No locals. #10 0x00007fc92a2d0e7a in CEventSource::GetEvent (this=this@entry=0x7fc8ef6a7d80, aListener=..., aTimeout=aTimeout@entry=500) at /build/virtualbox-UZ0NZi/virtualbox-5.1.6-dfsg/out/obj/VirtualBox/include/COMWrappers.cpp:26026 aEvent = {> = { = { = {static sSocketListener = 0x557a53946d60, 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 = {}, d = 0x7fc928bd4ba0 }, mText = {static null = {}, d = 0x7fc928bd4ba0 }, m_pNext = 0x0, mInterfaceName = {static null = {}, d = 0x7fc928bd4ba0 }, mCalleeIID = {data1 = 0, data2 = 0, data3 = 0, data4 = "\000\000\000\000\000\000\000"}, mCalleeName = {static null = {}, d = 0x7fc928bd4ba0 }}}, _vptr.CInterface = 0x7fc92aa98a70 , mIface = 0x0}, } eventPtr = 0x0 #11 0x00007fc92a000588 in UIMainEventListeningThread::run (this=0x557a53ae0310) at /build/virtualbox-UZ0NZi/virtualbox-5.1.6-dfsg/src/VBox/Frontends/VirtualBox/src/globals/UIMainEventListener.cpp:134 event = {> = { = { = {static sSocketListener = 0x557a53946d60, 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 = {}, d = 0x7fc928bd4ba0 }, mText = {static null = {}, d = 0x7fc928bd4ba0 }, m_pNext = 0x0, mInterfaceName = {static null = {}, d = 0x7fc928bd4ba0 }, mCalleeIID = {data1 = 0, data2 = 0, data3 = 0, data4 = "\000\000\000\000\000\000\000"}, mCalleeName = {static null = {}, d = 0x7fc928bd4ba0 }}}, _vptr.CInterface = 0x7fc92aa98a70 , mIface = 0x0}, } source = {> = { = { = {static sSocketListener = 0x557a53946d60, 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 = {}, d = 0x7fc928bd4ba0 }, mText = {static null = {}, d = 0x7fc928bd4ba0 }, m_pNext = 0x0, mInterfaceName = {static null = {}, d = 0x7fc928bd4ba0 }, mCalleeIID = {data1 = 0, data2 = 0, data3 = 0, data4 = "\000\000\000\000\000\000\000"}, mCalleeName = {static null = {}, d = 0x7fc928bd4ba0 }}}, _vptr.CInterface = 0x7fc92aa989c0 , mIface = 0x557a53adde20}, } listener = {> = { = { = {static sSocketListener = 0x557a53946d60, 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 = {}, d = 0x7fc928bd4ba0 }, mText = {static null = {}, d = 0x7fc928bd4ba0 }, m_pNext = 0x0, mInterfaceName = {static null = {}, d = 0x7fc928bd4ba0 }, mCalleeIID = {data1 = 0, data2 = 0, data3 = 0, data4 = "\000\000\000\000\000\000\000"}, mCalleeName = {static null = {}, d = 0x7fc928bd4ba0 }}}, _vptr.CInterface = 0x7fc92aa98a50 , mIface = 0x557a5393d140}, } #12 0x00007fc92892ec68 in QThreadPrivate::start(void*) () from /tmp/apport_sandbox_UWlQ8N/usr/lib/x86_64-linux-gnu/libQt5Core.so.5 No symbol table info available. #13 0x00007fc933f1870a in start_thread (arg=0x7fc8ef6a8700) at pthread_create.c:333 __res = pd = 0x7fc8ef6a8700 now = unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140500986922752, 1944588634329230209, 0, 140730608787615, 140500986923456, 140500986922752, -1914786461833188479, -1914321296721794175}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}} not_first_call = pagesize_m1 = sp = freesize = __PRETTY_FUNCTION__ = "start_thread" #14 0x00007fc933a490af in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105 No locals. . Thread 30 (LWP 5171): #0 0x00007fc933977ee6 in __GI___sigwaitinfo (set=, set@entry=0x7fc8d42e7d10, info=info@entry=0x7fc8d42e7d90) at ../sysdeps/unix/sysv/linux/sigwaitinfo.c:56 resultvar = sc_cancel_oldtype = 0 sc_ret = tmpset = {__val = {0, 7761153, 0, 140500930441216, 140500930326528, 0, 15285656345432, 0, 140500930326528, 3777484, 140500930326528, 93983877542112, 140500530003184, 140501272481165, 140500530003184, 140500530003216}} result = #1 0x00007fc93366270f in rttimerThread (hThreadSelf=, pvArg=) at /build/virtualbox-UZ0NZi/virtualbox-5.1.6-dfsg/src/VBox/Runtime/r3/posix/timer-posix.cpp:373 SigInfo = {si_signo = 0, si_errno = 0, si_code = 0, _sifields = {_pad = {0 }, _kill = {si_pid = 0, si_uid = 0}, _timer = {si_tid = 0, si_overrun = 0, si_sigval = {sival_int = 0, sival_ptr = 0x0}}, _rt = {si_pid = 0, si_uid = 0, si_sigval = {sival_int = 0, sival_ptr = 0x0}}, _sigchld = {si_pid = 0, si_uid = 0, si_status = 0, si_utime = 0, si_stime = 0}, _sigfault = {si_addr = 0x0, si_addr_lsb = 0, si_addr_bnd = {_lower = 0x0, _upper = 0x0}}, _sigpoll = {si_band = 0, si_fd = 0}, _sigsys = {_call_addr = 0x0, _syscall = 0, _arch = 0}}} SigAct = {__sigaction_handler = {sa_handler = 0x7fc933662580 , sa_sigaction = 0x7fc933662580 }, sa_mask = {__val = {0 }}, sa_flags = 268435456, sa_restorer = 0x0} SigSet = {__val = {8192, 0 }} #2 0x00007fc9335d836c in rtThreadMain (pThread=pThread@entry=0x7fc8fc9cd7d0, NativeThread=NativeThread@entry=140500530005760, pszThreadName=pszThreadName@entry=0x7fc8fc9ce0b0 "Timer") at /build/virtualbox-UZ0NZi/virtualbox-5.1.6-dfsg/src/VBox/Runtime/common/misc/thread.cpp:717 rc = #3 0x00007fc933661d4b in rtThreadNativeMain (pvArgs=0x7fc8fc9cd7d0) at /build/virtualbox-UZ0NZi/virtualbox-5.1.6-dfsg/src/VBox/Runtime/r3/posix/thread-posix.cpp:327 pThread = 0x7fc8fc9cd7d0 Self = 140500530005760 rc = __PRETTY_FUNCTION__ = "void* rtThreadNativeMain(void*)" #4 0x00007fc933f1870a in start_thread (arg=0x7fc8d42e8700) at pthread_create.c:333 __res = pd = 0x7fc8d42e8700 now = unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140500530005760, 1944588634329230209, 0, 140500931529199, 140500530006464, 140500530005760, -1914811235204551807, -1914321296721794175}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}} not_first_call = pagesize_m1 = sp = freesize = __PRETTY_FUNCTION__ = "start_thread" #5 0x00007fc933a490af in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105 No locals. . Thread 29 (LWP 5178): #0 pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185 No locals. #1 0x00007fc93366512a in rtSemEventMultiPosixWaitIndefinite (pThis=0x7fc8fcacb0d0, pSrcPos=0x0, fFlags=) at /build/virtualbox-UZ0NZi/virtualbox-5.1.6-dfsg/src/VBox/Runtime/r3/linux/../posix/semeventmulti-posix.cpp:429 u32State = hThreadSelf = 0x7fc8fcacb1b0 rc = #2 0x00007fc933665976 in rtSemEventMultiPosixWait (pSrcPos=0x0, uTimeout=, fFlags=, hEventMultiSem=) at /build/virtualbox-UZ0NZi/virtualbox-5.1.6-dfsg/src/VBox/Runtime/r3/linux/../posix/semeventmulti-posix.cpp:602 uTimeout = fFlags = hEventMultiSem = pThis = u32 = #3 RTSemEventMultiWaitEx (hEventMultiSem=, fFlags=, uTimeout=) at /build/virtualbox-UZ0NZi/virtualbox-5.1.6-dfsg/src/VBox/Runtime/r3/linux/../posix/semeventmulti-posix.cpp:611 No locals. #4 0x00007fc9006c0aae in PDMR3ThreadIAmSuspending (pThread=pThread@entry=0x7fc8fcacb050) at /build/virtualbox-UZ0NZi/virtualbox-5.1.6-dfsg/src/VBox/VMM/VMMR3/PDMThread.cpp:665 enmState = rc = #5 0x00007fc9006c0bc2 in pdmR3ThreadMain (Thread=0x7fc8fcacb1b0, pvUser=0x7fc8fcacb050) at /build/virtualbox-UZ0NZi/virtualbox-5.1.6-dfsg/src/VBox/VMM/VMMR3/PDMThread.cpp:817 pThread = 0x7fc8fcacb050 pUVM = 0x7fc8d75ff000 rc = 0 #6 0x00007fc9335d836c in rtThreadMain (pThread=pThread@entry=0x7fc8fcacb1b0, NativeThread=NativeThread@entry=140499789133568, pszThreadName=pszThreadName@entry=0x7fc8fcacba90 "NATURGRX") at /build/virtualbox-UZ0NZi/virtualbox-5.1.6-dfsg/src/VBox/Runtime/common/misc/thread.cpp:717 rc = #7 0x00007fc933661d4b in rtThreadNativeMain (pvArgs=0x7fc8fcacb1b0) at /build/virtualbox-UZ0NZi/virtualbox-5.1.6-dfsg/src/VBox/Runtime/r3/posix/thread-posix.cpp:327 pThread = 0x7fc8fcacb1b0 Self = 140499789133568 rc = __PRETTY_FUNCTION__ = "void* rtThreadNativeMain(void*)" #8 0x00007fc933f1870a in start_thread (arg=0x7fc8a805b700) at pthread_create.c:333 __res = pd = 0x7fc8a805b700 now = unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140499789133568, 1944588634329230209, 0, 140500931527743, 140499789134272, 140499789133568, -1914662043609945215, -1914321296721794175}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}} not_first_call = pagesize_m1 = sp = freesize = __PRETTY_FUNCTION__ = "start_thread" #9 0x00007fc933a490af in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105 No locals. . Thread 28 (LWP 5177): #0 pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185 No locals. #1 0x00007fc93366512a in rtSemEventMultiPosixWaitIndefinite (pThis=0x7fc8fcaca340, pSrcPos=0x0, fFlags=) at /build/virtualbox-UZ0NZi/virtualbox-5.1.6-dfsg/src/VBox/Runtime/r3/linux/../posix/semeventmulti-posix.cpp:429 u32State = hThreadSelf = 0x7fc8fcaca420 rc = #2 0x00007fc933665976 in rtSemEventMultiPosixWait (pSrcPos=0x0, uTimeout=, fFlags=, hEventMultiSem=) at /build/virtualbox-UZ0NZi/virtualbox-5.1.6-dfsg/src/VBox/Runtime/r3/linux/../posix/semeventmulti-posix.cpp:602 uTimeout = fFlags = hEventMultiSem = pThis = u32 = #3 RTSemEventMultiWaitEx (hEventMultiSem=, fFlags=, uTimeout=) at /build/virtualbox-UZ0NZi/virtualbox-5.1.6-dfsg/src/VBox/Runtime/r3/linux/../posix/semeventmulti-posix.cpp:611 No locals. #4 0x00007fc9006c0aae in PDMR3ThreadIAmSuspending (pThread=pThread@entry=0x7fc8fcaca2c0) at /build/virtualbox-UZ0NZi/virtualbox-5.1.6-dfsg/src/VBox/VMM/VMMR3/PDMThread.cpp:665 enmState = rc = #5 0x00007fc9006c0bc2 in pdmR3ThreadMain (Thread=0x7fc8fcaca420, pvUser=0x7fc8fcaca2c0) at /build/virtualbox-UZ0NZi/virtualbox-5.1.6-dfsg/src/VBox/VMM/VMMR3/PDMThread.cpp:817 pThread = 0x7fc8fcaca2c0 pUVM = 0x7fc8d75ff000 rc = 0 #6 0x00007fc9335d836c in rtThreadMain (pThread=pThread@entry=0x7fc8fcaca420, NativeThread=NativeThread@entry=140499789268736, pszThreadName=pszThreadName@entry=0x7fc8fcacad00 "NATRX") at /build/virtualbox-UZ0NZi/virtualbox-5.1.6-dfsg/src/VBox/Runtime/common/misc/thread.cpp:717 rc = #7 0x00007fc933661d4b in rtThreadNativeMain (pvArgs=0x7fc8fcaca420) at /build/virtualbox-UZ0NZi/virtualbox-5.1.6-dfsg/src/VBox/Runtime/r3/posix/thread-posix.cpp:327 pThread = 0x7fc8fcaca420 Self = 140499789268736 rc = __PRETTY_FUNCTION__ = "void* rtThreadNativeMain(void*)" #8 0x00007fc933f1870a in start_thread (arg=0x7fc8a807c700) at pthread_create.c:333 __res = pd = 0x7fc8a807c700 now = unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140499789268736, 1944588634329230209, 0, 140500931527743, 140499789269440, 140499789268736, -1914662060252943487, -1914321296721794175}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}} not_first_call = pagesize_m1 = sp = freesize = __PRETTY_FUNCTION__ = "start_thread" #9 0x00007fc933a490af in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105 No locals. . Thread 27 (LWP 5175): #0 pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185 No locals. #1 0x00007fc93366512a in rtSemEventMultiPosixWaitIndefinite (pThis=0x7fc8fcab14f0, pSrcPos=0x0, fFlags=) at /build/virtualbox-UZ0NZi/virtualbox-5.1.6-dfsg/src/VBox/Runtime/r3/linux/../posix/semeventmulti-posix.cpp:429 u32State = hThreadSelf = 0x7fc8fcab15d0 rc = #2 0x00007fc933665976 in rtSemEventMultiPosixWait (pSrcPos=0x0, uTimeout=, fFlags=, hEventMultiSem=) at /build/virtualbox-UZ0NZi/virtualbox-5.1.6-dfsg/src/VBox/Runtime/r3/linux/../posix/semeventmulti-posix.cpp:602 uTimeout = fFlags = hEventMultiSem = pThis = u32 = #3 RTSemEventMultiWaitEx (hEventMultiSem=, fFlags=, uTimeout=) at /build/virtualbox-UZ0NZi/virtualbox-5.1.6-dfsg/src/VBox/Runtime/r3/linux/../posix/semeventmulti-posix.cpp:611 No locals. #4 0x00007fc9006c0aae in PDMR3ThreadIAmSuspending (pThread=pThread@entry=0x7fc8fcab1470) at /build/virtualbox-UZ0NZi/virtualbox-5.1.6-dfsg/src/VBox/VMM/VMMR3/PDMThread.cpp:665 enmState = rc = #5 0x00007fc9006c0bc2 in pdmR3ThreadMain (Thread=0x7fc8fcab15d0, pvUser=0x7fc8fcab1470) at /build/virtualbox-UZ0NZi/virtualbox-5.1.6-dfsg/src/VBox/VMM/VMMR3/PDMThread.cpp:817 pThread = 0x7fc8fcab1470 pUVM = 0x7fc8d75ff000 rc = 0 #6 0x00007fc9335d836c in rtThreadMain (pThread=pThread@entry=0x7fc8fcab15d0, NativeThread=NativeThread@entry=140499816544000, pszThreadName=pszThreadName@entry=0x7fc8fcab1eb0 "Port0") at /build/virtualbox-UZ0NZi/virtualbox-5.1.6-dfsg/src/VBox/Runtime/common/misc/thread.cpp:717 rc = #7 0x00007fc933661d4b in rtThreadNativeMain (pvArgs=0x7fc8fcab15d0) at /build/virtualbox-UZ0NZi/virtualbox-5.1.6-dfsg/src/VBox/Runtime/r3/posix/thread-posix.cpp:327 pThread = 0x7fc8fcab15d0 Self = 140499816544000 rc = __PRETTY_FUNCTION__ = "void* rtThreadNativeMain(void*)" #8 0x00007fc933f1870a in start_thread (arg=0x7fc8a9a7f700) at pthread_create.c:333 __res = pd = 0x7fc8a9a7f700 now = unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140499816544000, 1944588634329230209, 0, 140500931528543, 140499816544704, 140499816544000, -1914660684252796031, -1914321296721794175}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}} not_first_call = pagesize_m1 = sp = freesize = __PRETTY_FUNCTION__ = "start_thread" #9 0x00007fc933a490af in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105 No locals. . Thread 26 (LWP 5173): #0 pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185 No locals. #1 0x00007fc93366512a in rtSemEventMultiPosixWaitIndefinite (pThis=0x7fc8c80053e0, pSrcPos=0x0, fFlags=) at /build/virtualbox-UZ0NZi/virtualbox-5.1.6-dfsg/src/VBox/Runtime/r3/linux/../posix/semeventmulti-posix.cpp:429 u32State = hThreadSelf = 0x7fc8c8005730 rc = #2 0x00007fc933665976 in rtSemEventMultiPosixWait (pSrcPos=0x0, uTimeout=, fFlags=, hEventMultiSem=) at /build/virtualbox-UZ0NZi/virtualbox-5.1.6-dfsg/src/VBox/Runtime/r3/linux/../posix/semeventmulti-posix.cpp:602 uTimeout = fFlags = hEventMultiSem = pThis = u32 = #3 RTSemEventMultiWaitEx (hEventMultiSem=, fFlags=, uTimeout=) at /build/virtualbox-UZ0NZi/virtualbox-5.1.6-dfsg/src/VBox/Runtime/r3/linux/../posix/semeventmulti-posix.cpp:611 No locals. #4 0x00007fc8efc6096c in HGCMThread::MsgGet (this=0x7fc8c8005570, ppMsg=0x7fc8d41a5e80) at /build/virtualbox-UZ0NZi/virtualbox-5.1.6-dfsg/src/VBox/Main/src-client/HGCMThread.cpp:543 No locals. #5 0x00007fc8efc60dd0 in hgcmMsgGet (hThread=hThread@entry=2147483696, ppMsg=ppMsg@entry=0x7fc8d41a5e80) at /build/virtualbox-UZ0NZi/virtualbox-5.1.6-dfsg/src/VBox/Main/src-client/HGCMThread.cpp:799 rc = 0 pThread = 0x7fc8c8005570 #6 0x00007fc8efc619bb in hgcmServiceThread (ThreadHandle=2147483696, pvUser=0x7fc8c8005490) at /build/virtualbox-UZ0NZi/virtualbox-5.1.6-dfsg/src/VBox/Main/src-client/HGCM.cpp:519 pMsgCore = 0x7fc8c8006390 rc = pSvc = 0x7fc8c8005490 __PRETTY_FUNCTION__ = "void hgcmServiceThread(HGCMTHREADHANDLE, void*)" fQuit = false #7 0x00007fc8efc60412 in hgcmWorkerThreadFunc (ThreadSelf=, pvUser=0x7fc8c8005570) at /build/virtualbox-UZ0NZi/virtualbox-5.1.6-dfsg/src/VBox/Main/src-client/HGCMThread.cpp:194 rc = 0 pThread = 0x7fc8c8005570 __PRETTY_FUNCTION__ = "int hgcmWorkerThreadFunc(RTTHREAD, void*)" #8 0x00007fc9335d836c in rtThreadMain (pThread=pThread@entry=0x7fc8c8005730, NativeThread=NativeThread@entry=140500528686848, pszThreadName=pszThreadName@entry=0x7fc8c8006010 "ShFolders") at /build/virtualbox-UZ0NZi/virtualbox-5.1.6-dfsg/src/VBox/Runtime/common/misc/thread.cpp:717 rc = #9 0x00007fc933661d4b in rtThreadNativeMain (pvArgs=0x7fc8c8005730) at /build/virtualbox-UZ0NZi/virtualbox-5.1.6-dfsg/src/VBox/Runtime/r3/posix/thread-posix.cpp:327 pThread = 0x7fc8c8005730 Self = 140500528686848 rc = __PRETTY_FUNCTION__ = "void* rtThreadNativeMain(void*)" #10 0x00007fc933f1870a in start_thread (arg=0x7fc8d41a6700) at pthread_create.c:333 __res = pd = 0x7fc8d41a6700 now = unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140500528686848, 1944588634329230209, 0, 140500932057999, 140500528687552, 140500528686848, -1914811337210025087, -1914321296721794175}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}} not_first_call = pagesize_m1 = sp = freesize = __PRETTY_FUNCTION__ = "start_thread" #11 0x00007fc933a490af in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105 No locals. . Thread 25 (LWP 5170): #0 pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185 No locals. #1 0x00007fc93366512a in rtSemEventMultiPosixWaitIndefinite (pThis=0x7fc8c80046b0, pSrcPos=0x0, fFlags=) at /build/virtualbox-UZ0NZi/virtualbox-5.1.6-dfsg/src/VBox/Runtime/r3/linux/../posix/semeventmulti-posix.cpp:429 u32State = hThreadSelf = 0x7fc8c8004800 rc = #2 0x00007fc933665976 in rtSemEventMultiPosixWait (pSrcPos=0x0, uTimeout=, fFlags=, hEventMultiSem=) at /build/virtualbox-UZ0NZi/virtualbox-5.1.6-dfsg/src/VBox/Runtime/r3/linux/../posix/semeventmulti-posix.cpp:602 uTimeout = fFlags = hEventMultiSem = pThis = u32 = #3 RTSemEventMultiWaitEx (hEventMultiSem=, fFlags=, uTimeout=) at /build/virtualbox-UZ0NZi/virtualbox-5.1.6-dfsg/src/VBox/Runtime/r3/linux/../posix/semeventmulti-posix.cpp:611 No locals. #4 0x00007fc8efc6096c in HGCMThread::MsgGet (this=0x7fc8c80045d0, ppMsg=0x7fc8d5186e80) at /build/virtualbox-UZ0NZi/virtualbox-5.1.6-dfsg/src/VBox/Main/src-client/HGCMThread.cpp:543 No locals. #5 0x00007fc8efc60dd0 in hgcmMsgGet (hThread=hThread@entry=2147483691, ppMsg=ppMsg@entry=0x7fc8d5186e80) at /build/virtualbox-UZ0NZi/virtualbox-5.1.6-dfsg/src/VBox/Main/src-client/HGCMThread.cpp:799 rc = 0 pThread = 0x7fc8c80045d0 #6 0x00007fc8efc619bb in hgcmServiceThread (ThreadHandle=2147483691, pvUser=0x7fc8c80044f0) at /build/virtualbox-UZ0NZi/virtualbox-5.1.6-dfsg/src/VBox/Main/src-client/HGCM.cpp:519 pMsgCore = 0x7fc8c8005490 rc = pSvc = 0x7fc8c80044f0 __PRETTY_FUNCTION__ = "void hgcmServiceThread(HGCMTHREADHANDLE, void*)" fQuit = false #7 0x00007fc8efc60412 in hgcmWorkerThreadFunc (ThreadSelf=, pvUser=0x7fc8c80045d0) at /build/virtualbox-UZ0NZi/virtualbox-5.1.6-dfsg/src/VBox/Main/src-client/HGCMThread.cpp:194 rc = 0 pThread = 0x7fc8c80045d0 __PRETTY_FUNCTION__ = "int hgcmWorkerThreadFunc(RTTHREAD, void*)" #8 0x00007fc9335d836c in rtThreadMain (pThread=pThread@entry=0x7fc8c8004800, NativeThread=NativeThread@entry=140500545337088, pszThreadName=pszThreadName@entry=0x7fc8c80050e0 "GuestControlSvc") at /build/virtualbox-UZ0NZi/virtualbox-5.1.6-dfsg/src/VBox/Runtime/common/misc/thread.cpp:717 rc = #9 0x00007fc933661d4b in rtThreadNativeMain (pvArgs=0x7fc8c8004800) at /build/virtualbox-UZ0NZi/virtualbox-5.1.6-dfsg/src/VBox/Runtime/r3/posix/thread-posix.cpp:327 pThread = 0x7fc8c8004800 Self = 140500545337088 rc = __PRETTY_FUNCTION__ = "void* rtThreadNativeMain(void*)" #10 0x00007fc933f1870a in start_thread (arg=0x7fc8d5187700) at pthread_create.c:333 __res = pd = 0x7fc8d5187700 now = unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140500545337088, 1944588634329230209, 0, 140500932057999, 140500545337792, 140500545337088, -1914809122617513087, -1914321296721794175}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}} not_first_call = pagesize_m1 = sp = freesize = __PRETTY_FUNCTION__ = "start_thread" #11 0x00007fc933a490af in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105 No locals. . Thread 24 (LWP 5169): #0 pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185 No locals. #1 0x00007fc933664c20 in rtSemEventWait (fAutoResume=true, cMillies=71006825, hEventSem=0x7fc8ac001380) at /build/virtualbox-UZ0NZi/virtualbox-5.1.6-dfsg/src/VBox/Runtime/r3/linux/../posix/semevent-posix.cpp:369 hThreadSelf = 0x7fc8ac0013f0 rc = pThis = 0x7fc8ac001380 u32 = #2 RTSemEventWait (hEventSem=0x7fc8ac001380, cMillies=cMillies@entry=4294967295) at /build/virtualbox-UZ0NZi/virtualbox-5.1.6-dfsg/src/VBox/Runtime/r3/linux/../posix/semevent-posix.cpp:482 No locals. #3 0x00007fc9335d5d2b in RTReqQueueProcess (hQueue=0x7fc8ac001300, cMillies=cMillies@entry=4294967295) at /build/virtualbox-UZ0NZi/virtualbox-5.1.6-dfsg/src/VBox/Runtime/common/misc/reqqueue.cpp:127 pReq = pReqs = pQueue = 0x7fc8ac001300 rc = 0 #4 0x00007fc8d520a8bc in guestProp::Service::threadNotifyHost (hThreadSelf=, pvUser=0x7fc8ac001270) at /build/virtualbox-UZ0NZi/virtualbox-5.1.6-dfsg/src/VBox/HostServices/GuestProperties/service.cpp:1538 pThis = 0x7fc8ac001270 rc = #5 0x00007fc9335d836c in rtThreadMain (pThread=pThread@entry=0x7fc8ac0013f0, NativeThread=NativeThread@entry=140500545865472, pszThreadName=pszThreadName@entry=0x7fc8ac001cd0 "GSTPROPNTFY") at /build/virtualbox-UZ0NZi/virtualbox-5.1.6-dfsg/src/VBox/Runtime/common/misc/thread.cpp:717 rc =