[kmail2] [Bug 350108] New: kmail crashes sometimes when left in background

[Vidar Løkken]

https://bugs.kde.org/show_bug.cgi?id=350108

            Bug ID: 350108
           Summary: kmail crashes sometimes when left in background
           Product: kmail2
           Version: unspecified
          Platform: openSUSE RPMs
                OS: Linux
            Status: UNCONFIRMED
          Keywords: drkonqi
          Severity: crash
          Priority: NOR
         Component: general
          Assignee: kdepim-bugs at kde.org
          Reporter: vidarlo at bitsex.net

Application: kmail (4.14.9)
KDE Platform Version: 4.14.9
Qt Version: 4.8.6
Operating System: Linux 4.1.0-4.gbab8328-desktop x86_64
Distribution: "openSUSE 13.2 (Harlequin) (x86_64)"

-- Information about the crash:
kmail left running in background. After some time it crashes. I do not see any
specific pattern to the crashes; they happen from time to time, and I am not
able to conciously reproduce them, as I do not know what I do to produce them.

If anyone has suggestions for what to attempt, please sound the horn to me :)

The crash can be reproduced sometimes.

-- Backtrace:
Application: KMail (kmail), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f9e9f06d800 (LWP 16593))]

Thread 4 (Thread 0x7f9e79485700 (LWP 16596)):
#0  0x00007f9e9a1c105f in pthread_cond_wait@@GLIBC_2.3.2 () at
/lib64/libpthread.so.0
#1  0x00007f9e8f8be686 in WTF::TCMalloc_PageHeap::scavengerThread() () at
/usr/lib64/libQtWebKit.so.4
#2  0x00007f9e8f8be6b9 in  () at /usr/lib64/libQtWebKit.so.4
#3  0x00007f9e9a1bd0a4 in start_thread () at /lib64/libpthread.so.0
#4  0x00007f9e9c3bc08d in clone () at /lib64/libc.so.6

Thread 3 (Thread 0x7f9e382f2700 (LWP 16597)):
#0  0x00007f9e9a1c105f in pthread_cond_wait@@GLIBC_2.3.2 () at
/lib64/libpthread.so.0
#1  0x00007f9e8f630e7d in JSC::BlockAllocator::blockFreeingThreadMain() () at
/usr/lib64/libQtWebKit.so.4
#2  0x00007f9e8f8e61e6 in WTF::wtfThreadEntryPoint(void*) () at
/usr/lib64/libQtWebKit.so.4
#3  0x00007f9e9a1bd0a4 in start_thread () at /lib64/libpthread.so.0
#4  0x00007f9e9c3bc08d in clone () at /lib64/libc.so.6

Thread 2 (Thread 0x7f9e373da700 (LWP 16598)):
[KCrash Handler]
#5  0x00007f9e9202db3e in  () at /lib64/libdbus-1.so.3
#6  0x00007f9e92026bc2 in  () at /lib64/libdbus-1.so.3
#7  0x00007f9e920270d2 in dbus_message_unref () at /lib64/libdbus-1.so.3
#8  0x00007f9e9a421b09 in QDBusArgument::~QDBusArgument() () at
/usr/lib64/libQtDBus.so.4
#9  0x00007f9e9a3fe76e in  () at /usr/lib64/libQtDBus.so.4
#10 0x00007f9e9da049a3 in  () at /usr/lib64/libQtCore.so.4
#11 0x00007f9e9a3eda5c in  () at /usr/lib64/libQtDBus.so.4
#12 0x00007f9e9a401f7f in QDBusMessage::~QDBusMessage() () at
/usr/lib64/libQtDBus.so.4
#13 0x00007f9e9a3fed56 in  () at /usr/lib64/libQtDBus.so.4
#14 0x00007f9e9d9e4586 in QCoreApplicationPrivate::sendPostedEvents(QObject*,
int, QThreadData*) () at /usr/lib64/libQtCore.so.4
#15 0x00007f9e9da0e8fe in  () at /usr/lib64/libQtCore.so.4
#16 0x00007f9e940eaa04 in g_main_context_dispatch () at
/usr/lib64/libglib-2.0.so.0
#17 0x00007f9e940eac48 in  () at /usr/lib64/libglib-2.0.so.0
#18 0x00007f9e940eacec in g_main_context_iteration () at
/usr/lib64/libglib-2.0.so.0
#19 0x00007f9e9da0e0de in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
at /usr/lib64/libQtCore.so.4
#20 0x00007f9e9d9dfe6f in
QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at
/usr/lib64/libQtCore.so.4
#21 0x00007f9e9d9e0165 in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at
/usr/lib64/libQtCore.so.4
#22 0x00007f9e9d8dd0bf in QThread::exec() () at /usr/lib64/libQtCore.so.4
#23 0x00007f9e9d8df79f in  () at /usr/lib64/libQtCore.so.4
#24 0x00007f9e9a1bd0a4 in start_thread () at /lib64/libpthread.so.0
#25 0x00007f9e9c3bc08d in clone () at /lib64/libc.so.6

Thread 1 (Thread 0x7f9e9f06d800 (LWP 16593)):
#0  0x00007f9e9c3afd2d in read () at /lib64/libc.so.6
#1  0x00007f9e9412b750 in  () at /usr/lib64/libglib-2.0.so.0
#2  0x00007f9e940ea714 in g_main_context_check () at
/usr/lib64/libglib-2.0.so.0
#3  0x00007f9e940eab7b in  () at /usr/lib64/libglib-2.0.so.0
#4  0x00007f9e940eacec in g_main_context_iteration () at
/usr/lib64/libglib-2.0.so.0
#5  0x00007f9e9da0e0de in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
at /usr/lib64/libQtCore.so.4
#6  0x00007f9e9ce17676 in  () at /usr/lib64/libQtGui.so.4
#7  0x00007f9e9d9dfe6f in
QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at
/usr/lib64/libQtCore.so.4
#8  0x00007f9e9d9e0165 in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at
/usr/lib64/libQtCore.so.4
#9  0x00007f9e9d9e55b9 in QCoreApplication::exec() () at
/usr/lib64/libQtCore.so.4
#10 0x0000000000402f3f in  ()
#11 0x00007f9e9c2f8b05 in __libc_start_main () at /lib64/libc.so.6
#12 0x0000000000403414 in _start ()

Reported using DrKonqi

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