[Bug 272250] New: kde crash when system very busy

James Hale james at enduring.com
Mon May 2 15:09:19 BST 2011 

https://bugs.kde.org/show_bug.cgi?id=272250

           Summary: kde crash when system very busy
           Product: kdelibs
           Version: unspecified
          Platform: openSUSE RPMs
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: crash
          Priority: NOR
         Component: kded
        AssignedTo: unassigned-bugs at kde.org
        ReportedBy: james at enduring.com


Application: kded4 ($Id: kded.cpp 1204125 2010-12-06 11:17:10Z dfaure $)
KDE Platform Version: 4.6.00 (4.6.0) "release 6"
Qt Version: 4.7.1
Operating System: Linux 2.6.37.1-1.2-desktop x86_64
Distribution: "openSUSE 11.4 (x86_64)"

-- Information about the crash:
- What I was doing when the application crashed:
had x6 firefox sessions - with total of probably 25 tabs opened - have had
entire system crash when lots of stuff is going on a few times and completely
freeze - this time i got the kde crash box - not sure if other times would have
crashed if i'd waited long enough.

only difference this time really was that i'd plugged the laptop back in while
was 'frozen' - so not sure if that kicked kde to do the crash/backtace/report -
will be glad to help chase this if i can help in any way.  have lots of
c/c++/unix dev experience (20+ years) but never really know how to help.

james at enduring.com

The crash can be reproduced some of the time.

-- Backtrace:
Application: KDE Daemon (kdeinit4), signal: Segmentation fault
[Current thread is 1 (Thread 0x7fd6affd2760 (LWP 2850))]

Thread 4 (Thread 0x7fd6959a0700 (LWP 2925)):
#0  0x00007fd6ad6df503 in poll () from /lib64/libc.so.6
#1  0x00007fd6aa551114 in ?? () from /lib64/libglib-2.0.so.0
#2  0x00007fd6aa551650 in g_main_context_iteration () from
/lib64/libglib-2.0.so.0
#3  0x00007fd6aecd0976 in QEventDispatcherGlib::processEvents
(this=0x7fd6900008b0, flags=<value optimized out>) at
kernel/qeventdispatcher_glib.cpp:424
#4  0x00007fd6aeca5052 in QEventLoop::processEvents (this=<value optimized
out>, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007fd6aeca5265 in QEventLoop::exec (this=0x7fd69599fe20, flags=...) at
kernel/qeventloop.cpp:201
#6  0x00007fd6aebba1e4 in QThread::exec (this=<value optimized out>) at
thread/qthread.cpp:490
#7  0x00007fd6aebbca5e in QThreadPrivate::start (arg=0x7c6e10) at
thread/qthread_unix.cpp:285
#8  0x00007fd6ae92da3f in start_thread () from /lib64/libpthread.so.0
#9  0x00007fd6ad6e867d in clone () from /lib64/libc.so.6
#10 0x0000000000000000 in ?? ()

Thread 3 (Thread 0x7fd69519f700 (LWP 2931)):
#0  0x00007fd6ae9300a4 in pthread_mutex_lock () from /lib64/libpthread.so.0
#1  0x00007fd6aa5500b6 in g_main_context_prepare () from
/lib64/libglib-2.0.so.0
#2  0x00007fd6aa550fa9 in ?? () from /lib64/libglib-2.0.so.0
#3  0x00007fd6aa551650 in g_main_context_iteration () from
/lib64/libglib-2.0.so.0
#4  0x00007fd6aecd0976 in QEventDispatcherGlib::processEvents (this=0x7cd750,
flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:424
#5  0x00007fd6aeca5052 in QEventLoop::processEvents (this=<value optimized
out>, flags=...) at kernel/qeventloop.cpp:149
#6  0x00007fd6aeca5265 in QEventLoop::exec (this=0x7fd69519ede0, flags=...) at
kernel/qeventloop.cpp:201
#7  0x00007fd6aebba1e4 in QThread::exec (this=<value optimized out>) at
thread/qthread.cpp:490
#8  0x00007fd6aec86968 in QInotifyFileSystemWatcherEngine::run (this=0x7cd360)
at io/qfilesystemwatcher_inotify.cpp:248
#9  0x00007fd6aebbca5e in QThreadPrivate::start (arg=0x7cd360) at
thread/qthread_unix.cpp:285
#10 0x00007fd6ae92da3f in start_thread () from /lib64/libpthread.so.0
#11 0x00007fd6ad6e867d in clone () from /lib64/libc.so.6
#12 0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7fd68ea07700 (LWP 2985)):
#0  0x00007fd6ad6df503 in poll () from /lib64/libc.so.6
#1  0x00007fd6aa551114 in ?? () from /lib64/libglib-2.0.so.0
#2  0x00007fd6aa551a35 in g_main_loop_run () from /lib64/libglib-2.0.so.0
#3  0x00007fd68f0fb244 in ?? () from /lib64/libgio-2.0.so.0
#4  0x00007fd6aa578466 in ?? () from /lib64/libglib-2.0.so.0
#5  0x00007fd6ae92da3f in start_thread () from /lib64/libpthread.so.0
#6  0x00007fd6ad6e867d in clone () from /lib64/libc.so.6
#7  0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7fd6affd2760 (LWP 2850)):
[KCrash Handler]
#6  0x00007fd698b064f9 in PowerDevil::Core::onKIdleTimeoutReached(int, int) ()
from /usr/lib64/libpowerdevilcore.so.0
#7  0x00007fd698b08445 in PowerDevil::Core::qt_metacall(QMetaObject::Call, int,
void**) () from /usr/lib64/libpowerdevilcore.so.0
#8  0x00007fd6aecbadef in QMetaObject::activate (sender=0x79c6c0, m=<value
optimized out>, local_signal_index=<value optimized out>, argv=0x7fff970fee30)
at kernel/qobject.cpp:3272
#9  0x00007fd6988e9ddf in KIdleTime::timeoutReached (this=<value optimized
out>, _t1=6, _t2=150000) at
/usr/src/debug/kdelibs-4.6.0/build/kutils/kidletime.moc:124
#10 0x00007fd6988eb8a1 in KIdleTimePrivate::_k_timeoutReached (this=<value
optimized out>, msec=150000) at
/usr/src/debug/kdelibs-4.6.0/kutils/kidletime/kidletime.cpp:243
#11 0x00007fd6988ec200 in KIdleTime::qt_metacall (this=0x79c6c0,
_c=QMetaObject::InvokeMetaMethod, _id=9, _a=0x7fff970fefe0) at
/usr/src/debug/kdelibs-4.6.0/build/kutils/kidletime.moc:99
#12 0x00007fd6aecbadef in QMetaObject::activate (sender=0x87a5a0, m=<value
optimized out>, local_signal_index=<value optimized out>, argv=0x7fff970fefe0)
at kernel/qobject.cpp:3272
#13 0x00007fd6988e9ea1 in AbstractSystemPoller::timeoutReached (this=<value
optimized out>, _t1=150000) at
/usr/src/debug/kdelibs-4.6.0/build/kutils/abstractsystempoller.moc:115
#14 0x00007fd6988ebc1b in XSyncBasedPoller::x11Event (this=0x87a5a0,
event=0x7fff970ff6c0) at
/usr/src/debug/kdelibs-4.6.0/kutils/kidletime/xsyncbasedpoller.cpp:235
#15 0x00007fd6afa7050e in publicx11Event (this=<value optimized out>,
_event=0x7fff970ff6c0) at
/usr/src/debug/kdelibs-4.6.0/kdeui/kernel/kapplication.cpp:916
#16 KApplication::x11EventFilter (this=<value optimized out>,
_event=0x7fff970ff6c0) at
/usr/src/debug/kdelibs-4.6.0/kdeui/kernel/kapplication.cpp:967
#17 0x00007fd6adec3cc5 in qt_x11EventFilter (ev=0x7fff970ff6c0) at
kernel/qapplication_x11.cpp:436
#18 0x00007fd6aded1ce0 in QApplication::x11ProcessEvent (this=0x7fff970ffa90,
event=0x7fff970ff6c0) at kernel/qapplication_x11.cpp:3276
#19 0x00007fd6adefa0f2 in x11EventSourceDispatch (s=0x6ac150, callback=0,
user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#20 0x00007fd6aa550bd3 in g_main_context_dispatch () from
/lib64/libglib-2.0.so.0
#21 0x00007fd6aa5513b0 in ?? () from /lib64/libglib-2.0.so.0
#22 0x00007fd6aa551650 in g_main_context_iteration () from
/lib64/libglib-2.0.so.0
#23 0x00007fd6aecd091f in QEventDispatcherGlib::processEvents (this=0x617ca0,
flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:422
#24 0x00007fd6adef9d8e in QGuiEventDispatcherGlib::processEvents (this=<value
optimized out>, flags=<value optimized out>) at
kernel/qguieventdispatcher_glib.cpp:204
#25 0x00007fd6aeca5052 in QEventLoop::processEvents (this=<value optimized
out>, flags=...) at kernel/qeventloop.cpp:149
#26 0x00007fd6aeca5265 in QEventLoop::exec (this=0x7fff970ff9e0, flags=...) at
kernel/qeventloop.cpp:201
#27 0x00007fd6aeca96ab in QCoreApplication::exec () at
kernel/qcoreapplication.cpp:1009
#28 0x00007fd69f3296d7 in kdemain () from /usr/lib64/libkdeinit4_kded4.so
#29 0x00000000004075e9 in _start ()

Possible duplicates by query: bug 272034, bug 271342, bug 269922, bug 269855.

Reported using DrKonqi

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