KDE Platform Version: 4.10.5 (Compiled from sources)
Qt Version: 4.8.4
Operating System: Linux 3.10.7-gentoo-gnu x86_64
Distribution: "Gentoo Base System release 2.2"

-- Information about the crash:
- What I was doing when the application crashed:
  Nothing: I'd minimised konqui a few seconds previously, and was just considering what work I needed to do next, and what could wait.

  Using proprietary nvidia driver, as you can see from the tls call. This has just been recompiled, after a kernel upgrade, and linux-headers (as well as the rest of toolchain) before the whole of kde-4.5.10 (gentoo: -r1) was built. I've had a few konqui crashes since the upgrade; before that I was on 4.5.9 for 8 months, which was rock-solid.
  As an aside, I'd suggest valgrind's relatively recent drd, if it's not already in use on your test rigs. [http://valgrind.org/docs/manual/drd-manual.html]. I haven't yet played with it though it did help someone I advised to try it.

  Unless you can see the issue from the backtrace of course: I don't do C++, so I wouldn't know where to begin; nor am I in a position to rebuild the whole of kde to run under valgrind.

Looking at my build log:
Mon Jul  1 07:34:21 2013 >>> x11-drivers/nvidia-drivers-319.23
Wed Sep 11 04:15:49 2013 >>> x11-drivers/nvidia-drivers-319.49
Tue Sep 17 21:03:37 2013 >>> x11-drivers/nvidia-drivers-319.49

So I'll rollback to a new build of the previous version, and report back in a week or so. I figured others might be hitting the same issue so if we can send it upstream instead, great.


Reproducible: Sometimes




-- Backtrace:
Application: Konqueror (kdeinit4), signal: Aborted
Using host libthread_db library "/lib64/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f5b1eb36780 (LWP 2341))]

Thread 3 (Thread 0x7f5b064d6700 (LWP 2342)):
#0  0x00007f5b18f6a7c0 in g_mutex_get_impl () from /usr/lib64/libglib-2.0.so.0
#1  0x00007f5b18f6ab29 in g_mutex_unlock () from /usr/lib64/libglib-2.0.so.0
#2  0x00007f5b18f3c590 in ?? () from /usr/lib64/libglib-2.0.so.0
#3  0x00007f5b18f2dfdd in g_main_context_iterate.clone.6 () from /usr/lib64/libglib-2.0.so.0
#4  0x0000000000000020 in ?? ()
#5  0x00000001000009c0 in ?? ()
#6  0x0000000000000001 in ?? ()
#7  0x00007f5b000008e0 in ?? ()
#8  0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7f5b05cd5700 (LWP 2540)):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:39
#1  0x00007f5b1d6fd48b in _q_futex (val2=0, addr2=0x0, timeout=0x0, val=2, op=0, addr=0x467a970) at thread/qmutex_unix.cpp:99
#2  QMutexPrivate::wait (this=0x467a970, timeout=<optimized out>) at thread/qmutex_unix.cpp:113
#3  0x00007f5b1d6f92cd in QMutex::lockInternal (this=<optimized out>) at thread/qmutex.cpp:450
#4  0x00007f5b1d6fea35 in lockInline (this=0x47910a8) at ../../include/QtCore/../../src/corelib/thread/qmutex.h:190
#5  QMutexLocker (m=0x47910a8, this=<synthetic pointer>) at ../../include/QtCore/../../src/corelib/thread/qmutex.h:109
#6  QThreadPrivate::start (arg=0x47e2860) at thread/qthread_unix.cpp:317
#7  0x00007f5b1d46efb6 in start_thread (arg=0x7f5b05cd5700) at pthread_create.c:305
#8  0x00007f5b1c21768d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:115

Thread 1 (Thread 0x7f5b1eb36780 (LWP 2341)):
[KCrash Handler]
#6  0x00007f5b1c1649b5 in __GI_raise (sig=6) at ../nptl/sysdeps/unix/sysv/linux/raise.c:64
#7  0x00007f5b1c165e2b in __GI_abort () at abort.c:91
#8  0x00007f5b1c1a448e in __libc_message (do_abort=2, fmt=0x7f5b1c297ea8 "*** glibc detected *** %s: %s: 0x%s ***\n") at ../sysdeps/unix/sysv/linux/libc_fatal.c:198
#9  0x00007f5b1c1aa206 in malloc_printerr (action=3, str=0x7f5b1c297fb8 "double free or corruption (!prev)", ptr=<optimized out>) at malloc.c:5007
#10 0x00007f5b0efbc0ac in ?? () from /usr/lib64/libGL.so.1
#11 0x00007f5b0e49617a in ?? () from /usr/lib64/libnvidia-tls.so.319.49
#12 0x00007f5b1d6fe174 in QThread::start (this=0x47e2860, priority=<optimized out>) at thread/qthread_unix.cpp:640
#13 0x00007f5b1d6f2ac0 in tryStart (task=0x9ebce70, this=0x41152a0) at concurrent/qthreadpool.cpp:203
#14 QThreadPoolPrivate::tryStart (this=0x41152a0, task=0x9ebce70) at concurrent/qthreadpool.cpp:174
#15 0x00007f5b1d6f2cf3 in QThreadPool::start (this=<optimized out>, runnable=0x9ebce70, priority=0) at concurrent/qthreadpool.cpp:474
#16 0x00007f5b15bad67a in start (this=0x9ebce60) at /usr/include/qt4/QtCore/qtconcurrentrunbase.h:85
#17 QtConcurrent::run<QHostInfo, QString const&, QString> (functionPointer=<optimized out>, arg1=...) at /usr/include/qt4/QtCore/qtconcurrentrun.h:79
#18 0x00007f5b15bac76b in start (hostName=..., this=0x9ebcea0) at /var/tmp/portage/kde-base/kdelibs-4.10.5-r1/work/kdelibs-4.10.5/kio/kio/hostinfo.cpp:99
#19 KIO::HostInfoAgentPrivate::lookupHost (this=0x1981de0, hostName=..., receiver=0x0, member=0x0) at /var/tmp/portage/kde-base/kdelibs-4.10.5-r1/work/kdelibs-4.10.5/kio/kio/hostinfo.cpp:353
#20 0x00007f5aff8a56bb in KHTMLPart::timerEvent (this=0x35b9ec0, e=<optimized out>) at /var/tmp/portage/kde-base/kdelibs-4.10.5-r1/work/kdelibs-4.10.5/khtml/khtml_part.cpp:3446
#21 0x00007f5b1d8142b9 in QObject::event (this=0x35b9ec0, e=<optimized out>) at kernel/qobject.cpp:1156
#22 0x00007f5b1c9a09d4 in notify_helper (e=0x7fff199c7b90, receiver=0x35b9ec0, this=0x17d1c90) at kernel/qapplication.cpp:4562
#23 QApplicationPrivate::notify_helper (this=0x17d1c90, receiver=0x35b9ec0, e=0x7fff199c7b90) at kernel/qapplication.cpp:4534
#24 0x00007f5b1c9a56d3 in QApplication::notify (this=0x7fff199c7ff0, receiver=0x35b9ec0, e=0x7fff199c7b90) at kernel/qapplication.cpp:4423
#25 0x00007f5b1e584586 in KApplication::notify (this=0x7fff199c7ff0, receiver=0x35b9ec0, event=0x7fff199c7b90) at /var/tmp/portage/kde-base/kdelibs-4.10.5-r1/work/kdelibs-4.10.5/kdeui/kernel/kapplication.cpp:311
#26 0x00007f5b1d7fb8f4 in QCoreApplication::notifyInternal (this=0x7fff199c7ff0, receiver=0x35b9ec0, event=0x7fff199c7b90) at kernel/qcoreapplication.cpp:946
#27 0x00007f5b1d82c03a in sendEvent (event=0x7fff199c7b90, receiver=<optimized out>) at kernel/qcoreapplication.h:231
#28 QTimerInfoList::activateTimers (this=0x17d3900) at kernel/qeventdispatcher_unix.cpp:621
#29 0x00007f5b1d8299ed in timerSourceDispatch (source=<optimized out>) at kernel/qeventdispatcher_glib.cpp:186
#30 timerSourceDispatch (source=<optimized out>) at kernel/qeventdispatcher_glib.cpp:180
#31 0x00007f5b1d829a11 in idleTimerSourceDispatch (source=<optimized out>) at kernel/qeventdispatcher_glib.cpp:233
#32 0x00007f5b18f2de3a in g_main_context_dispatch () from /usr/lib64/libglib-2.0.so.0
#33 0x0000000000000000 in ?? ()

Possible duplicates by query: bug 324099, bug 322518, bug 321764, bug 321465, bug 320526.