[Bug 237472] New: Crash happened when closing last session

Josh Lehan kde at krellan.com
Thu May 13 08:58:08 BST 2010 

https://bugs.kde.org/show_bug.cgi?id=237472

           Summary: Crash happened when closing last session
           Product: kde
           Version: unspecified
          Platform: Unlisted Binaries
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: crash
          Priority: NOR
         Component: general
        AssignedTo: unassigned-bugs at kde.org
        ReportedBy: kde at krellan.com


Application that crashed: kdevelop.bin
Version of the application: 4.0.0 (using KDevPlatform 1.0.0)
KDE Version: 4.3.5 (KDE 4.3.5)
Qt Version: 4.6.2
Operating System: Linux 2.6.33-gentoo-r1 x86_64

What I was doing when the application crashed:
Started KDevelop 4.
Open another session.
Close the first session.
Close the second session.
It crashes when you tried to close the second session.


 -- Backtrace:
Application: KDevelop (kdevelop.bin), signal: Segmentation fault
Traceback (most recent call last):
  File "/usr/share/gdb/auto-load/usr/lib64/libgobject-2.0.so.0.2200.5-gdb.py",
line 9, in <module>
    from gobject import register
  File "/usr/share/glib-2.0/gdb/gobject.py", line 3, in <module>
    import gdb.backtrace
ImportError: No module named backtrace
The current source language is "auto; currently c".
[Current thread is 1 (Thread 0x7f9067927740 (LWP 13540))]

Thread 6 (Thread 0x7f904c996910 (LWP 13541)):
#0  pthread_cond_timedwait@@GLIBC_2.3.2 () at
../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:220
#1  0x00007f906427bad7 in QWaitConditionPrivate::wait (this=0x27decf8,
mutex=0x27ded00, time=200000) at thread/qwaitcondition_unix.cpp:85
#2  QWaitCondition::wait (this=0x27decf8, mutex=0x27ded00, time=200000) at
thread/qwaitcondition_unix.cpp:159
#3  0x00007f9060edea0e in KDevelop::DUChainPrivate::CleanupThread::run
(this=0x27dece0) at
/var/tmp/portage/dev-util/kdevplatform-1.0.0/work/kdevplatform-1.0.0/language/duchain/duchain.cpp:286
#4  0x00007f906427ac15 in QThreadPrivate::start (arg=0x27dece0) at
thread/qthread_unix.cpp:248
#5  0x00007f9063fec2a7 in start_thread (arg=<value optimized out>) at
pthread_create.c:297
#6  0x00007f90626bf8cd in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#7  0x0000000000000000 in ?? ()

Thread 5 (Thread 0x7f9040406910 (LWP 13560)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at
../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:261
#1  0x00007f9061aa2c06 in QTWTF::TCMalloc_PageHeap::scavengerThread
(this=0x7f9061d80220) at
../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:2304
#2  0x00007f9061aa2c49 in QTWTF::TCMalloc_PageHeap::runScavengerThread
(context=0x7f9061d8e2ec) at
../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:1438
#3  0x00007f9063fec2a7 in start_thread (arg=<value optimized out>) at
pthread_create.c:297
#4  0x00007f90626bf8cd in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#5  0x0000000000000000 in ?? ()
The current source language is "auto; currently asm".

Thread 4 (Thread 0x7f903ebec910 (LWP 13579)):
#0  0x00007f90626b6896 in *__GI___poll (fds=0x7f90480121b0, nfds=1, timeout=-1)
at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007f905db3d4b9 in g_main_context_poll (context=0x7f9048000e00, block=1,
dispatch=1, self=<value optimized out>) at gmain.c:2904
#2  g_main_context_iterate (context=0x7f9048000e00, block=1, dispatch=1,
self=<value optimized out>) at gmain.c:2586
#3  0x00007f905db3d79c in IA__g_main_context_iteration (context=0x7f9048000e00,
may_block=1) at gmain.c:2654
#4  0x00007f9064398566 in QEventDispatcherGlib::processEvents
(this=0x7f904801e7c0, flags=<value optimized out>) at
kernel/qeventdispatcher_glib.cpp:414
#5  0x00007f906436d6d2 in QEventLoop::processEvents (this=<value optimized
out>, flags=...) at kernel/qeventloop.cpp:149
#6  0x00007f906436daa4 in QEventLoop::exec (this=0x7f903ebec040, flags=...) at
kernel/qeventloop.cpp:201
#7  0x00007f90642780a7 in QThread::exec (this=<value optimized out>) at
thread/qthread.cpp:487
#8  0x00007f906427ac15 in QThreadPrivate::start (arg=0x3c983c0) at
thread/qthread_unix.cpp:248
#9  0x00007f9063fec2a7 in start_thread (arg=<value optimized out>) at
pthread_create.c:297
#10 0x00007f90626bf8cd in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 3 (Thread 0x7f903d98b910 (LWP 13580)):
#0  0x00007f9063fef3e1 in __pthread_mutex_unlock_usercnt (mutex=0x3ca1a78,
decr=1) at pthread_mutex_unlock.c:52
#1  0x00007f905db3cf47 in IA__g_main_context_prepare (context=0x3ca1a70,
priority=0x7f903d98af34) at gmain.c:2278
#2  0x00007f905db3d2d9 in g_main_context_iterate (context=0x3ca1a70, block=1,
dispatch=1, self=<value optimized out>) at gmain.c:2571
#3  0x00007f905db3d79c in IA__g_main_context_iteration (context=0x3ca1a70,
may_block=1) at gmain.c:2654
#4  0x00007f9064398566 in QEventDispatcherGlib::processEvents (this=0x3ca31f0,
flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:414
#5  0x00007f906436d6d2 in QEventLoop::processEvents (this=<value optimized
out>, flags=...) at kernel/qeventloop.cpp:149
#6  0x00007f906436daa4 in QEventLoop::exec (this=0x7f903d98b040, flags=...) at
kernel/qeventloop.cpp:201
#7  0x00007f90642780a7 in QThread::exec (this=<value optimized out>) at
thread/qthread.cpp:487
#8  0x00007f906427ac15 in QThreadPrivate::start (arg=0x3c919f0) at
thread/qthread_unix.cpp:248
#9  0x00007f9063fec2a7 in start_thread (arg=<value optimized out>) at
pthread_create.c:297
#10 0x00007f90626bf8cd in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()
The current source language is "auto; currently c".

Thread 2 (Thread 0x7f903d18a910 (LWP 13581)):
#0  pthread_cond_timedwait@@GLIBC_2.3.2 () at
../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:220
#1  0x00007f906427a565 in thread_sleep (ti=0x7f903d18a000) at
thread/qthread_unix.cpp:398
#2  0x00007f906427a6be in QThread::msleep (msecs=30) at
thread/qthread_unix.cpp:424
#3  0x00007f903e15bff1 in UIBlockTester::UIBlockTesterThread::run
(this=0x7f90380008c0) at
/var/tmp/portage/dev-util/kdevelop-4.0.0/work/kdevelop-4.0.0/languages/cpp/cpplanguagesupport.cpp:678
#4  0x00007f906427ac15 in QThreadPrivate::start (arg=0x7f90380008c0) at
thread/qthread_unix.cpp:248
#5  0x00007f9063fec2a7 in start_thread (arg=<value optimized out>) at
pthread_create.c:297
#6  0x00007f90626bf8cd in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#7  0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f9067927740 (LWP 13540)):
[KCrash Handler]
#5  0x00007f906467f360 in typeinfo for QObjectUserData () from
/usr/lib64/qt4/libQtCore.so.4
#6  0x00007f903e15c789 in CppLanguageSupport::language (this=0x3c72310) at
/var/tmp/portage/dev-util/kdevelop-4.0.0/work/kdevelop-4.0.0/languages/cpp/cpplanguagesupport.cpp:407
#7  0x00007f903e15d4de in ~CppLanguageSupport (this=0x266bc40, __in_chrg=<value
optimized out>)
    at
/var/tmp/portage/dev-util/kdevelop-4.0.0/work/kdevelop-4.0.0/languages/cpp/cpplanguagesupport.cpp:359
#8  0x00007f906437d770 in QObjectPrivate::deleteChildren (this=0x2698860) at
kernel/qobject.cpp:1978
#9  0x00007f9064385200 in ~QObject (this=0x266bc40, __in_chrg=<value optimized
out>) at kernel/qobject.cpp:975
#10 0x00007f9066e0c718 in ~Core (this=0x266bc40, __in_chrg=<value optimized
out>) at
/var/tmp/portage/dev-util/kdevplatform-1.0.0/work/kdevplatform-1.0.0/shell/core.cpp:262
#11 0x00007f906437ef05 in QObject::event (this=0x266bc40, e=0xb) at
kernel/qobject.cpp:1223
#12 0x00007f90632a9f6d in QApplicationPrivate::notify_helper (this=0x24f3330,
receiver=0x266bc40, e=0x286a360) at kernel/qapplication.cpp:4300
#13 0x00007f90632b1364 in QApplication::notify (this=0x7fff4a3b5fc0,
receiver=0x266bc40, e=0x286a360) at kernel/qapplication.cpp:3704
#14 0x00007f9064b1908b in KApplication::notify (this=0x7fff4a3b5fc0,
receiver=0x266bc40, event=0x286a360)
    at
/var/tmp/portage/kde-base/kdelibs-4.3.5/work/kdelibs-4.3.5/kdeui/kernel/kapplication.cpp:302
#15 0x00007f906436edab in QCoreApplication::notifyInternal
(this=0x7fff4a3b5fc0, receiver=0x266bc40, event=0x286a360) at
kernel/qcoreapplication.cpp:704
#16 0x00007f906436fc6b in QCoreApplication::sendEvent (receiver=0x0,
event_type=52, data=0x1caa530) at kernel/qcoreapplication.h:215
#17 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=52,
data=0x1caa530) at kernel/qcoreapplication.cpp:1345
#18 0x00007f906436ff35 in QCoreApplication::exec () at
kernel/qcoreapplication.cpp:988
#19 0x0000000000408dff in main (argc=1, argv=0x7fff4a3b75e8) at
/var/tmp/portage/dev-util/kdevelop-4.0.0/work/kdevelop-4.0.0/app/main_internal.cpp:232
The current source language is "auto; currently asm".
The current source language is "auto; currently c".

Reported using DrKonqi

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