.
Thread 3 (Thread 0xb3a7bb70 (LWP 4421)):
#0  0xb7764424 in __kernel_vsyscall ()
No symbol table info available.
#1  0xb6e0640e in __GI___poll (fds=0x8efd0f8, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:87
        resultvar = <optimized out>
        oldtype = -516
        result = <optimized out>
#2  0xb704534b in g_poll (fds=0x8efd0f8, nfds=1, timeout=-1) at /build/buildd/glib2.0-2.30.0/./glib/gpoll.c:132
No locals.
#3  0xb7036896 in g_main_context_poll (n_fds=1, fds=0x8efd0f8, timeout=<optimized out>, context=0x8efbc00, priority=<optimized out>) at /build/buildd/glib2.0-2.30.0/./glib/gmain.c:3402
        poll_func = 0xb7045320 <g_poll>
#4  g_main_context_iterate (context=0x8efbc00, block=-1224453344, dispatch=1, self=<optimized out>) at /build/buildd/glib2.0-2.30.0/./glib/gmain.c:3084
        max_priority = 2147483647
        timeout = -1
        some_ready = <optimized out>
        nfds = 1
        allocated_nfds = <optimized out>
        fds = 0x8efd0f8
#5  0xb7036f9b in g_main_loop_run (loop=0x8efcfe0) at /build/buildd/glib2.0-2.30.0/./glib/gmain.c:3297
        __PRETTY_FUNCTION__ = "g_main_loop_run"
#6  0xb3a82194 in dconf_context_thread (data=0x8efbc00) at dconfcontext.c:11
        context = 0x8efbc00
        loop = <optimized out>
        __PRETTY_FUNCTION__ = "dconf_context_thread"
#7  0xb705d5f4 in g_thread_create_proxy (data=0x8efbc90) at /build/buildd/glib2.0-2.30.0/./glib/gthread.c:1962
        thread = 0x8efbc90
        __PRETTY_FUNCTION__ = "g_thread_create_proxy"
#8  0xb6fd4d31 in start_thread (arg=0xb3a7bb70) at pthread_create.c:304
        __res = <optimized out>
        pd = 0xb3a7bb70
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {-1224843276, 0, 4001536, -1280855336, 367802188, -1609181882}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimized out>
        robust = <optimized out>
        pagesize_m1 = <optimized out>
        sp = <optimized out>
        freesize = <optimized out>
        __PRETTY_FUNCTION__ = "start_thread"
#9  0xb6e150ce in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:130
No locals.
Backtrace stopped: Not enough registers or memory available to unwind further
.
Thread 2 (Thread 0xb30ffb70 (LWP 4422)):
#0  0xb7764424 in __kernel_vsyscall ()
No symbol table info available.
#1  0xb6e0640e in __GI___poll (fds=0x8f0da38, nfds=3, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:87
        resultvar = <optimized out>
        oldtype = -516
        result = <optimized out>
#2  0xb704534b in g_poll (fds=0x8f0da38, nfds=3, timeout=-1) at /build/buildd/glib2.0-2.30.0/./glib/gpoll.c:132
No locals.
#3  0xb7036896 in g_main_context_poll (n_fds=3, fds=0x8f0da38, timeout=<optimized out>, context=0x8f0d438, priority=<optimized out>) at /build/buildd/glib2.0-2.30.0/./glib/gmain.c:3402
        poll_func = 0xb7045320 <g_poll>
#4  g_main_context_iterate (context=0x8f0d438, block=-1224453344, dispatch=1, self=<optimized out>) at /build/buildd/glib2.0-2.30.0/./glib/gmain.c:3084
        max_priority = 2147483647
        timeout = -1
        some_ready = <optimized out>
        nfds = 3
        allocated_nfds = <optimized out>
        fds = 0x8f0da38
#5  0xb7036f9b in g_main_loop_run (loop=0x8f0d410) at /build/buildd/glib2.0-2.30.0/./glib/gmain.c:3297
        __PRETTY_FUNCTION__ = "g_main_loop_run"
#6  0xb6aedcea in gdbus_shared_thread_func (user_data=0x8f0d420) at /build/buildd/glib2.0-2.30.0/./gio/gdbusprivate.c:276
        data = 0x8f0d420
#7  0xb705d5f4 in g_thread_create_proxy (data=0x8f0b918) at /build/buildd/glib2.0-2.30.0/./glib/gthread.c:1962
        thread = 0x8f0b918
        __PRETTY_FUNCTION__ = "g_thread_create_proxy"
#8  0xb6fd4d31 in start_thread (arg=0xb30ffb70) at pthread_create.c:304
        __res = <optimized out>
        pd = 0xb30ffb70
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {-1224843276, 0, 4001536, -1290800424, 1164719949, -1609181882}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimized out>
        robust = <optimized out>
        pagesize_m1 = <optimized out>
        sp = <optimized out>
        freesize = <optimized out>
        __PRETTY_FUNCTION__ = "start_thread"
#9  0xb6e150ce in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:130
No locals.
Backtrace stopped: Not enough registers or memory available to unwind further
.
Thread 1 (Thread 0xb66a8880 (LWP 4323)):
#0  0x08083a27 in CompWindow::id (this=0xb03c02e8) at /build/buildd/compiz-0.9.6+bzr20110929/src/window.cpp:5590
No locals.
#1  0xb417296e in getPaintMask (this=<optimized out>) at /build/buildd/unity-4.24.0/plugins/unityshell/src/compizminimizedwindowhandler.h:276
        w = <optimized out>
        __for_range = @0xb41eee38
        doMask = true
#2  UnityWindow::glPaint (this=0xb0040f90, attrib=..., matrix=..., region=..., mask=2) at /build/buildd/unity-4.24.0/plugins/unityshell/src/unityshell.cpp:1594
        compizMinimizeHandler = {px = 0xb0072ce0, pn = {pi_ = 0xb008b1e8}}
        wAttrib = {opacity = 65535, brightness = 65535, saturation = 65535, xScale = 1, yScale = 1, xTranslate = 0, yTranslate = 0}
#3  0xb5fa3a1c in GLWindow::glDraw (this=0xb0044368, transform=..., fragment=..., region=..., mask=<optimized out>) at /build/buildd/compiz-0.9.6+bzr20110929/plugins/opengl/src/paint.cpp:1175
        reg = {priv = 0xb00e1b90}
        ml = {<std::_Vector_base<GLTexture::Matrix, std::allocator<GLTexture::Matrix> >> = {_M_impl = {<std::allocator<GLTexture::Matrix>> = {<__gnu_cxx::new_allocator<GLTexture::Matrix>> = {<No data fields>}, <No data fields>}, _M_start = 0xb00e1b90, _M_finish = 0xbf8539cc, _M_end_of_storage = 0xb00deafc}}, <No data fields>}
#4  0xb5fa3e21 in PrivateGLScreen::paintOutputRegion (this=0x8c8c1a0, transform=..., region=..., output=0x8c11340, mask=11) at /build/buildd/compiz-0.9.6+bzr20110929/plugins/opengl/src/paint.cpp:249
        vTransform = {m = {1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1}}
        tmpRegion = {priv = 0xb00757c0}
        status = false
        withOffset = 24
        offXY = {mX = 0, mY = 0}
        pl = {<std::_List_base<CompWindow*, std::allocator<CompWindow*> >> = {_M_impl = {<std::allocator<std::_List_node<CompWindow*> >> = {<__gnu_cxx::new_allocator<std::_List_node<CompWindow*> >> = {<No data fields>}, <No data fields>}, _M_node = {_M_next = 0xb0067b08, _M_prev = 0xaf310408}}}, <No data fields>}
        unredirectFS = false
#5  0xb5fa479a in GLScreen::glPaintOutput (this=0x8c97dc8, sAttrib=..., transform=..., region=..., output=0x8c11340, mask=11) at /build/buildd/compiz-0.9.6+bzr20110929/plugins/opengl/src/paint.cpp:505
        sTransform = {m = {0.000694444461, 0, 0, 0, -0, -0.00111111114, -0, -0, 0, 0, 1, 0, -0.5, 0.5, -0.866025388, 1}}
#6  0xb43e0462 in WallScreen::glPaintOutput (this=0x8de3ae0, attrib=..., matrix=..., region=..., output=0x8c11340, mask=11) at /build/buildd/compiz-plugins-main-0.9.6/wall/src/wall.cpp:1146
        status = <optimized out>
#7  0xb5fa4570 in ?? () at /build/buildd/compiz-0.9.6+bzr20110929/plugins/opengl/src/paint.cpp:300 from /tmp/tmpAINVFl/usr/lib/compiz/libopengl.so
No symbol table info available.
Backtrace stopped: previous frame inner to this frame (corrupt stack?)