Bug 271099

Summary:	Clicked on Firefox and panel crashed.
Product:	[Unmaintained] plasma4	Reporter:	Roger Rotge <roger.rotge>
Component:	general	Assignee:	Plasma Bugs List <plasma-bugs-null>
Status:	RESOLVED DUPLICATE
Severity:	crash	CC:	asraniel, cfeck
Priority:	NOR
Version First Reported In:	unspecified
Target Milestone:	---
Platform:	Ubuntu
OS:	Linux
Latest Commit:		Version Fixed/Implemented In:
Sentry Crash Report:

Description Roger Rotge 2011-04-16 15:15:06 UTC

Application: plasma-desktop (0.4)
KDE Platform Version: 4.6.2 (4.6.2)
Qt Version: 4.7.0
Operating System: Linux 2.6.35-28-generic i686
Distribution: Linux Mint 10 KDE

-- Information about the crash:
I clicked on the minimized Firefox icon in the panel and the desktop crashed.

The crash can be reproduced some of the time.

-- Backtrace:
Application: Plasma Desktop Shell (plasma-desktop), signal: Segmentation fault
[Current thread is 1 (Thread 0xb7766730 (LWP 2111))]

Thread 14 (Thread 0xb5396b70 (LWP 2119)):
#0  0x0266f3eb in pthread_mutex_lock () from /lib/libpthread.so.0
#1  0x0096ff66 in pthread_mutex_lock () from /lib/libc.so.6
#2  0x021ffea3 in g_main_context_prepare () from /lib/libglib-2.0.so.0
#3  0x02200279 in ?? () from /lib/libglib-2.0.so.0
#4  0x02200848 in g_main_context_iteration () from /lib/libglib-2.0.so.0
#5  0x03e6e59f in QEventDispatcherGlib::processEvents (this=0x9f32750, flags=...) at kernel/qeventdispatcher_glib.cpp:417
#6  0x03e3e609 in QEventLoop::processEvents (this=0xb5396270, flags=) at kernel/qeventloop.cpp:149
#7  0x03e3ea8a in QEventLoop::exec (this=0xb5396270, flags=...) at kernel/qeventloop.cpp:201
#8  0x03d3ab7e in QThread::exec (this=0x9f2a6a0) at thread/qthread.cpp:490
#9  0x03e1d35b in QInotifyFileSystemWatcherEngine::run (this=0x9f2a6a0) at io/qfilesystemwatcher_inotify.cpp:248
#10 0x03d3ddf9 in QThreadPrivate::start (arg=0x9f2a6a0) at thread/qthread_unix.cpp:266
#11 0x0266ccc9 in start_thread () from /lib/libpthread.so.0
#12 0x0096269e in clone () from /lib/libc.so.6

Thread 13 (Thread 0xae267b70 (LWP 2131)):
#0  0x064d3e36 in clock_gettime () from /lib/librt.so.1
#1  0x03d9950b in do_gettime () at tools/qelapsedtimer_unix.cpp:105
#2  qt_gettime () at tools/qelapsedtimer_unix.cpp:119
#3  0x03e706e5 in QTimerInfoList::updateCurrentTime (this=0x9d02274) at kernel/qeventdispatcher_unix.cpp:339
#4  0x03e7072a in QTimerInfoList::timerWait (this=0x9d02274, tm=...) at kernel/qeventdispatcher_unix.cpp:442
#5  0x03e6e7a8 in timerSourcePrepareHelper (src=<value optimized out>, timeout=0xae26709c) at kernel/qeventdispatcher_glib.cpp:136
#6  0x03e6e83d in timerSourcePrepare (source=0x0, timeout=0x64d7ff4) at kernel/qeventdispatcher_glib.cpp:169
#7  0x021ffe6a in g_main_context_prepare () from /lib/libglib-2.0.so.0
#8  0x02200279 in ?? () from /lib/libglib-2.0.so.0
#9  0x02200848 in g_main_context_iteration () from /lib/libglib-2.0.so.0
#10 0x03e6e59f in QEventDispatcherGlib::processEvents (this=0x9cfdc80, flags=...) at kernel/qeventdispatcher_glib.cpp:417
#11 0x03e3e609 in QEventLoop::processEvents (this=0xae267270, flags=) at kernel/qeventloop.cpp:149
#12 0x03e3ea8a in QEventLoop::exec (this=0xae267270, flags=...) at kernel/qeventloop.cpp:201
#13 0x03d3ab7e in QThread::exec (this=0x9eee548) at thread/qthread.cpp:490
#14 0x03e1d35b in QInotifyFileSystemWatcherEngine::run (this=0x9eee548) at io/qfilesystemwatcher_inotify.cpp:248
#15 0x03d3ddf9 in QThreadPrivate::start (arg=0x9eee548) at thread/qthread_unix.cpp:266
#16 0x0266ccc9 in start_thread () from /lib/libpthread.so.0
#17 0x0096269e in clone () from /lib/libc.so.6

Thread 12 (Thread 0xb49ffb70 (LWP 2334)):
#0  0x00125416 in __kernel_vsyscall ()
#1  0x026714dc in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/libpthread.so.0
#2  0x0096fd9d in pthread_cond_wait () from /lib/libc.so.6
#3  0x055af3a5 in ?? () from /usr/lib/libQtWebKit.so.4
#4  0x055af481 in ?? () from /usr/lib/libQtWebKit.so.4
#5  0x0266ccc9 in start_thread () from /lib/libpthread.so.0
#6  0x0096269e in clone () from /lib/libc.so.6

Thread 11 (Thread 0xacfe7b70 (LWP 2516)):
#0  0x00125416 in __kernel_vsyscall ()
#1  0x026714dc in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/libpthread.so.0
#2  0x0096fd9d in pthread_cond_wait () from /lib/libc.so.6
#3  0x09048877 in QTWTF::TCMalloc_PageHeap::scavengerThread (this=0x91471a0) at ../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:2359
#4  0x090488c1 in QTWTF::TCMalloc_PageHeap::runScavengerThread (context=0x91471a0) at ../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:1464
#5  0x0266ccc9 in start_thread () from /lib/libpthread.so.0
#6  0x0096269e in clone () from /lib/libc.so.6

Thread 10 (Thread 0x9e966b70 (LWP 2517)):
#0  0x00125416 in __kernel_vsyscall ()
#1  0x02671884 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib/libpthread.so.0
#2  0x0096fdf4 in pthread_cond_timedwait () from /lib/libc.so.6
#3  0x05b6fb3f in ?? () from /usr/lib/libxine.so.1
Backtrace stopped: previous frame inner to this frame (corrupt stack?)

Thread 9 (Thread 0x9dd5ab70 (LWP 2518)):
#0  0x00125416 in __kernel_vsyscall ()
#1  0x0095b371 in select () from /lib/libc.so.6
#2  0x05b9bf1c in xine_usec_sleep () from /usr/lib/libxine.so.1
#3  0x00000000 in ?? ()

Thread 8 (Thread 0x9d559b70 (LWP 2519)):
#0  0x00125416 in __kernel_vsyscall ()
#1  0x00953df6 in poll () from /lib/libc.so.6
#2  0x0220da1b in g_poll () from /lib/libglib-2.0.so.0
#3  0x0220043c in ?? () from /lib/libglib-2.0.so.0
#4  0x02200848 in g_main_context_iteration () from /lib/libglib-2.0.so.0
#5  0x03e6e59f in QEventDispatcherGlib::processEvents (this=0xa5b77e8, flags=...) at kernel/qeventdispatcher_glib.cpp:417
#6  0x03e3e609 in QEventLoop::processEvents (this=0x9d559260, flags=) at kernel/qeventloop.cpp:149
#7  0x03e3ea8a in QEventLoop::exec (this=0x9d559260, flags=...) at kernel/qeventloop.cpp:201
#8  0x03d3ab7e in QThread::exec (this=0xac24b50) at thread/qthread.cpp:490
#9  0x047ffd7a in ?? () from /usr/lib/qt4/plugins/phonon_backend/phonon_xine.so
#10 0x03d3ddf9 in QThreadPrivate::start (arg=0xac24b50) at thread/qthread_unix.cpp:266
#11 0x0266ccc9 in start_thread () from /lib/libpthread.so.0
#12 0x0096269e in clone () from /lib/libc.so.6

Thread 7 (Thread 0x9cd58b70 (LWP 2520)):
#0  0x0096ff8c in pthread_mutex_unlock () from /lib/libc.so.6
#1  0x0253f961 in pa_mutex_unlock () from /usr/lib/libpulsecommon-0.9.21.so
#2  0x05b03549 in ?? () from /usr/lib/libpulse.so.0
#3  0x05aefab9 in pa_mainloop_poll () from /usr/lib/libpulse.so.0
#4  0x05af1a73 in pa_mainloop_iterate () from /usr/lib/libpulse.so.0
#5  0x05af1b44 in pa_mainloop_run () from /usr/lib/libpulse.so.0
#6  0x05b03303 in ?? () from /usr/lib/libpulse.so.0
#7  0x02540bd5 in ?? () from /usr/lib/libpulsecommon-0.9.21.so
#8  0x0266ccc9 in start_thread () from /lib/libpthread.so.0
#9  0x0096269e in clone () from /lib/libc.so.6

Thread 6 (Thread 0x98556b70 (LWP 2521)):
#0  0x00125416 in __kernel_vsyscall ()
#1  0x026714dc in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/libpthread.so.0
#2  0x0096fd9d in pthread_cond_wait () from /lib/libc.so.6
#3  0x05b81b54 in ?? () from /usr/lib/libxine.so.1
Backtrace stopped: previous frame inner to this frame (corrupt stack?)

Thread 5 (Thread 0x9796cb70 (LWP 2522)):
#0  0x00125416 in __kernel_vsyscall ()
#1  0x026714dc in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/libpthread.so.0
#2  0x0096fd9d in pthread_cond_wait () from /lib/libc.so.6
#3  0x05b736c8 in ?? () from /usr/lib/libxine.so.1
#4  0x00000000 in ?? ()

Thread 4 (Thread 0x96f9eb70 (LWP 2523)):
#0  0x00125416 in __kernel_vsyscall ()
#1  0x026714dc in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/libpthread.so.0
#2  0x0096fd9d in pthread_cond_wait () from /lib/libc.so.6
#3  0x05b736c8 in ?? () from /usr/lib/libxine.so.1
#4  0x00000000 in ?? ()

Thread 3 (Thread 0x9679db70 (LWP 2524)):
#0  0x00125416 in __kernel_vsyscall ()
#1  0x026714dc in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/libpthread.so.0
#2  0x0096fd9d in pthread_cond_wait () from /lib/libc.so.6
#3  0x05b84f3c in ?? () from /usr/lib/libxine.so.1
Backtrace stopped: previous frame inner to this frame (corrupt stack?)

Thread 2 (Thread 0x959beb70 (LWP 5057)):
#0  0x00125416 in __kernel_vsyscall ()
#1  0x02671884 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib/libpthread.so.0
#2  0x0096fdf4 in pthread_cond_timedwait () from /lib/libc.so.6
#3  0x05b6fb3f in ?? () from /usr/lib/libxine.so.1
#4  0x00000000 in ?? ()

Thread 1 (Thread 0xb7766730 (LWP 2111)):
[KCrash Handler]
#7  t (this=0x9cb50e8, event=0xa7605f0, receiver=0xa357538, postedEvents=0x9eaf18) at ../../include/QtCore/../../src/corelib/tools/qlist.h:110
#8  at (this=0x9cb50e8, event=0xa7605f0, receiver=0xa357538, postedEvents=0x9eaf18) at ../../include/QtCore/../../src/corelib/tools/qlist.h:456
#9  QCoreApplication::compressEvent (this=0x9cb50e8, event=0xa7605f0, receiver=0xa357538, postedEvents=0x9eaf18) at kernel/qcoreapplication.cpp:1226
#10 0x014b555c in QApplication::compressEvent (this=0x9cb50e8, event=0xa7605f0, receiver=0xa357538, postedEvents=0x9eaf18) at kernel/qapplication.cpp:1262
#11 0x03e427b7 in QCoreApplication::postEvent (receiver=0xa357538, event=0xa7605f0, priority=0) at kernel/qcoreapplication.cpp:1160
#12 0x03e42aac in QCoreApplication::postEvent (receiver=0xa357538, event=0xa7605f0) at kernel/qcoreapplication.cpp:1094
#13 0x03e512c4 in QObject::deleteLater (this=0xa357538) at kernel/qobject.cpp:2131
#14 0x0155d0bc in QX11Data::xdndHandleFinished (this=0x9cc5e38, xe=0xbfa2cfdc, passive=false) at kernel/qdnd_x11.cpp:1254
#15 0x01537716 in QApplication::x11ClientMessage (this=0x9cb50e8, w=0x9f548d8, event=0xbfa2cfdc, passive_only=56) at kernel/qapplication_x11.cpp:3107
#16 0x01548af4 in QApplication::x11ProcessEvent (this=0x9cb50e8, event=0xbfa2cfdc) at kernel/qapplication_x11.cpp:3668
#17 0x0157836a in x11EventSourceDispatch (s=0x9cc4ec0, callback=0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#18 0x021fc855 in g_main_context_dispatch () from /lib/libglib-2.0.so.0
#19 0x02200668 in ?? () from /lib/libglib-2.0.so.0
#20 0x02200848 in g_main_context_iteration () from /lib/libglib-2.0.so.0
#21 0x03e6e565 in QEventDispatcherGlib::processEvents (this=0x9c88fd8, flags=...) at kernel/qeventdispatcher_glib.cpp:415
#22 0x01577be5 in QGuiEventDispatcherGlib::processEvents (this=0x9c88fd8, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#23 0x03e3e609 in QEventLoop::processEvents (this=0xbfa2d2d4, flags=) at kernel/qeventloop.cpp:149
#24 0x03e3ea8a in QEventLoop::exec (this=0xbfa2d2d4, flags=...) at kernel/qeventloop.cpp:201
#25 0x03e4300f in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1009
#26 0x014b4e07 in QApplication::exec () at kernel/qapplication.cpp:3672
#27 0x00d211e7 in kdemain (argc=1, argv=0xbfa2d4e4) at ../../../../plasma/desktop/shell/main.cpp:118
#28 0x080485bb in main (argc=1, argv=0xbfa2d4e4) at plasma-desktop_dummy.cpp:3

Possible duplicates by query: bug 267279, bug 266436, bug 266426, bug 257455, bug 256732.

Reported using DrKonqi

Comment 1 Christoph Feck 2011-04-23 16:27:04 UTC

From the backtrace it looks like you "dragged" instead of clicked. The drag distance seems to be really low, maybe only 1 or 2 pixels. Can you reproduce the crash by trying to drag the taskbar entries?

Comment 2 Beat Wolf 2011-06-03 15:31:16 UTC


*** This bug has been marked as a duplicate of bug 271844 ***