Bug 328437

Application: kwin (4.10.5)
KDE Platform Version: 4.11.3
Qt Version: 4.8.6
Operating System: Linux 3.11-2-amd64 x86_64
Distribution: Debian GNU/Linux testing (jessie)
Graphics driver: Nvidia 319.72-1

WineTest is Wine's conformance/regression testing suite. Part of the checks involve creating/deleting a bunch of windows with various sizes and properties.

I run WineTest daily on my machine and this night's run caused caused a crash resulting in a crash report dialog this morning. I'm attaching a backtrace which indicates the crash seems to have happened in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>). In the stack trace (which is unfortunately missing some line information) I see that the crash seems to have happened in Nvidia's OpenGL libraries and might be related to threading...
I'll disable the effects to see if the problem persists.


Reproducible: Didn't try

Steps to Reproduce:
1. Install the wine package
2. Download: http://test.winehq.org/builds/winetest-latest.exe
3. Run wine winetest-latest.exe
4. The test run will take 10 to 20 minutes.

Actual Results:  
Crash

Expected Results:  
No crash!

Application: KWin (kwin), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f318d0c17c0 (LWP 13292))]

Thread 2 (Thread 0x7f315f45d700 (LWP 13307)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f31891caa4b in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#2  0x00007f31891caa89 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#3  0x00007f31811b7e0e in start_thread (arg=0x7f315f45d700) at pthread_create.c:311
#4  0x00007f318c8fe9ed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 1 (Thread 0x7f318d0c17c0 (LWP 13292)):
[KCrash Handler]
#5  0x00007f317fe53854 in ?? () from /usr/lib/x86_64-linux-gnu/libnvidia-glcore.so.319.72
#6  0x00007f317ff0dee1 in ?? () from /usr/lib/x86_64-linux-gnu/libnvidia-glcore.so.319.72
#7  0x00007f317fc7b14a in ?? () from /usr/lib/x86_64-linux-gnu/libnvidia-glcore.so.319.72
#8  0x00007f317fbf8fb9 in ?? () from /usr/lib/x86_64-linux-gnu/libnvidia-glcore.so.319.72
#9  0x00007f317fec3d9c in ?? () from /usr/lib/x86_64-linux-gnu/libnvidia-glcore.so.319.72
#10 0x00007f317fec415b in ?? () from /usr/lib/x86_64-linux-gnu/libnvidia-glcore.so.319.72
#11 0x00007f317fe6a6a3 in ?? () from /usr/lib/x86_64-linux-gnu/libnvidia-glcore.so.319.72
#12 0x00007f317fe6d058 in ?? () from /usr/lib/x86_64-linux-gnu/libnvidia-glcore.so.319.72
#13 0x00007f317fbbe670 in ?? () from /usr/lib/x86_64-linux-gnu/libnvidia-glcore.so.319.72
#14 0x00007f318cc8932f in ?? () from /usr/lib/kde4/libkdeinit/libkdeinit4_kwin.so
#15 0x00007f318cc83118 in ?? () from /usr/lib/kde4/libkdeinit/libkdeinit4_kwin.so
#16 0x00007f318cc6f483 in ?? () from /usr/lib/kde4/libkdeinit/libkdeinit4_kwin.so
#17 0x00007f3187e34691 in QObject::event(QEvent*) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#18 0x00007f31871bc75c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#19 0x00007f31871c2dd0 in QApplication::notify(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#20 0x00007f318c3eb49a in KApplication::notify(QObject*, QEvent*) () from /usr/lib/libkdeui.so.5
#21 0x00007f3187e1c33d in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#22 0x00007f3187e4bf83 in ?? () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#23 0x00007f3187e4c970 in QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#24 0x00007f318725b1b6 in ?? () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#25 0x00007f3187e1af9f in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#26 0x00007f3187e1b295 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#27 0x00007f3187e208db in QCoreApplication::exec() () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#28 0x00007f318cc287ef in kdemain () from /usr/lib/kde4/libkdeinit/libkdeinit4_kwin.so
#29 0x00007f318c837995 in __libc_start_main (main=0x4006d0, argc=3, ubp_av=0x7fff1c6f7ac8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff1c6f7ab8) at libc-start.c:260
#30 0x00000000004006fe in _start ()