[Konsole-devel] [Bug 273334] New: konsole crashes sometimes when system do heavy IO

Maksim Melnikau maxposedon at gmail.com
Sun May 15 11:42:05 UTC 2011 

https://bugs.kde.org/show_bug.cgi?id=273334

           Summary: konsole crashes sometimes when system do heavy IO
           Product: konsole
           Version: unspecified
          Platform: Ubuntu Packages
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: crash
          Priority: NOR
         Component: general
        AssignedTo: konsole-devel at kde.org
        ReportedBy: maxposedon at gmail.com


Application: konsole (2.6.2)
KDE Platform Version: 4.6.2 (4.6.2)
Qt Version: 4.7.2
Operating System: Linux 2.6.35-27-generic x86_64
Distribution: Ubuntu 11.04

-- Information about the crash:
- What I was doing when the application crashed:
apt-get upgrade (rootfs on btrfs) in screen in konsole
few ssh connections to remote hosts
few ssh connections to remote hosts in screen

- Unusual behavior I noticed:
system was slow

The crash can be reproduced some of the time.

-- Backtrace:
Application: Konsole (konsole), signal: Segmentation fault
[Current thread is 1 (Thread 0x7f44741f9780 (LWP 2468))]

Thread 2 (Thread 0x7f445e567700 (LWP 2484)):
#0  0x00007f4473b4ef03 in __poll (fds=<value optimized out>, nfds=<value
optimized out>, timeout=<value optimized out>) at
../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007f446e0bd104 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f446e0bd639 in g_main_context_iteration () from
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f447273d446 in QEventDispatcherGlib::processEvents (this=0xab4500,
flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:424
#4  0x00007f4472711882 in QEventLoop::processEvents (this=<value optimized
out>, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007f4472711abc in QEventLoop::exec (this=0x7f445e566dd0, flags=...) at
kernel/qeventloop.cpp:201
#6  0x00007f4472628924 in QThread::exec (this=<value optimized out>) at
thread/qthread.cpp:492
#7  0x00007f44726f3c2f in QInotifyFileSystemWatcherEngine::run (this=0xd77360)
at io/qfilesystemwatcher_inotify.cpp:248
#8  0x00007f447262b175 in QThreadPrivate::start (arg=0xd77360) at
thread/qthread_unix.cpp:320
#9  0x00007f446e980d8c in start_thread (arg=0x7f445e567700) at
pthread_create.c:304
#10 0x00007f4473b5c04d in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f44741f9780 (LWP 2468)):
[KCrash Handler]
#6  operator!= (this=0x1110f18, _t=@0x7fff8906e308) at
../../include/QtCore/../../src/corelib/thread/qbasicatomic.h:75
#7  detachShared (this=0x1110f18, _t=@0x7fff8906e308) at
../../include/QtCore/../../src/corelib/tools/qlist.h:131
#8  QList<QWidget*>::removeAll (this=0x1110f18, _t=@0x7fff8906e308) at
../../include/QtCore/../../src/corelib/tools/qlist.h:758
#9  0x00007f4471b1d231 in QWidget::removeAction (this=0x1033560,
action=0xeb94a0) at kernel/qwidget.cpp:3235
#10 0x00007f4473815c92 in
Konsole::SessionController::showDisplayContextMenu(QPoint const&) () from
/usr/lib/libkonsoleprivate.so
#11 0x00007f4473818ca1 in
Konsole::SessionController::qt_metacall(QMetaObject::Call, int, void**) () from
/usr/lib/libkonsoleprivate.so
#12 0x00007f44727275f8 in QMetaObject::activate (sender=0xeb8930, m=<value
optimized out>, local_signal_index=<value optimized out>, argv=0x7fff8906e540)
at kernel/qobject.cpp:3287
#13 0x00007f447382ad85 in Konsole::TerminalDisplay::configureRequest(QPoint
const&) () from /usr/lib/libkonsoleprivate.so
#14 0x00007f447382d742 in
Konsole::TerminalDisplay::mousePressEvent(QMouseEvent*) () from
/usr/lib/libkonsoleprivate.so
#15 0x00007f4471b24fa1 in QWidget::event (this=0xeb8930, event=0x7fff8906ee90)
at kernel/qwidget.cpp:8255
#16 0x00007f447382aea8 in Konsole::TerminalDisplay::event(QEvent*) () from
/usr/lib/libkonsoleprivate.so
#17 0x00007f4471ad39e4 in QApplicationPrivate::notify_helper (this=0x9d1530,
receiver=0xeb8930, e=0x7fff8906ee90) at kernel/qapplication.cpp:4462
#18 0x00007f4471ad8db3 in QApplication::notify (this=<value optimized out>,
receiver=0xeb8930, e=0x7fff8906ee90) at kernel/qapplication.cpp:4023
#19 0x00007f4473153866 in KApplication::notify (this=0x7fff8906fb50,
receiver=0xeb8930, event=0x7fff8906ee90) at
../../kdeui/kernel/kapplication.cpp:311
#20 0x00007f447271249c in QCoreApplication::notifyInternal
(this=0x7fff8906fb50, receiver=0xeb8930, event=0x7fff8906ee90) at
kernel/qcoreapplication.cpp:731
#21 0x00007f4471ad4a0d in sendEvent (receiver=0xeb8930, event=0x7fff8906ee90,
alienWidget=0xeb8930, nativeWidget=0xa36ea0, buttonDown=0x7f44725b4218,
lastMouseReceiver=..., spontaneous=true) at
../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#22 QApplicationPrivate::sendMouseEvent (receiver=0xeb8930,
event=0x7fff8906ee90, alienWidget=0xeb8930, nativeWidget=0xa36ea0,
buttonDown=0x7f44725b4218, lastMouseReceiver=..., spontaneous=true) at
kernel/qapplication.cpp:3122
#23 0x00007f4471b54600 in QETWidget::translateMouseEvent (this=0xa36ea0,
event=<value optimized out>) at kernel/qapplication_x11.cpp:4556
#24 0x00007f4471b5304a in QApplication::x11ProcessEvent (this=0x7fff8906fb50,
event=0x7fff8906f7e0) at kernel/qapplication_x11.cpp:3678
#25 0x00007f4471b7b162 in x11EventSourceDispatch (s=0x9d51d0, callback=0,
user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#26 0x00007f446e0bcbcd in g_main_context_dispatch () from
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#27 0x00007f446e0bd3a8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#28 0x00007f446e0bd639 in g_main_context_iteration () from
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#29 0x00007f447273d3ef in QEventDispatcherGlib::processEvents (this=0x979340,
flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:422
#30 0x00007f4471b7adfe in QGuiEventDispatcherGlib::processEvents (this=<value
optimized out>, flags=<value optimized out>) at
kernel/qguieventdispatcher_glib.cpp:204
#31 0x00007f4472711882 in QEventLoop::processEvents (this=<value optimized
out>, flags=...) at kernel/qeventloop.cpp:149
#32 0x00007f4472711abc in QEventLoop::exec (this=0x7fff8906fae0, flags=...) at
kernel/qeventloop.cpp:201
#33 0x00007f4472715ecb in QCoreApplication::exec () at
kernel/qcoreapplication.cpp:1008
#34 0x00007f4473e1d107 in kdemain () from
/usr/lib/kde4/libkdeinit/libkdeinit4_konsole.so
#35 0x00007f4473a94eff in __libc_start_main (main=0x400730 <_start+256>,
argc=3, ubp_av=0x7fff8906fda8, init=<value optimized out>, fini=<value
optimized out>, rtld_fini=<value optimized out>, stack_end=0x7fff8906fd98) at
libc-start.c:226
#36 0x0000000000400659 in _start ()

Possible duplicates by query: bug 257926, bug 246652, bug 245676.

Reported using DrKonqi

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