[Akonadi] [Bug 362420] DAV Resource 16.04.0: Segfaults randomly

Wed Sep 7 21:13:21 BST 2016

https://bugs.kde.org/show_bug.cgi?id=362420

--- Comment #1 from Till Schäfer <till2.schaefer at uni-dortmund.de> ---
the bug is still valid on 16.08.0 (Frameworks 5.25), although the stack trace
changed slightly: 

Application: akonadi_davgroupware_resource (akonadi_davgroupware_resource),
signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f57b9ca37c0 (LWP 4953))]

Thread 1 (Thread 0x7f57b9ca37c0 (LWP 4953)):
[KCrash Handler]
#6  std::__atomic_base<int>::load (__m=std::memory_order_relaxed,
this=<optimized out>) at
/usr/lib/gcc/x86_64-pc-linux-gnu/4.9.3/include/g++-v4/bits/atomic_base.h:500
#7  QAtomicOps<int>::load<int> (_q_value=...) at
/usr/include/qt5/QtCore/qatomic_cxx11.h:96
#8  QBasicAtomicInteger<int>::load (this=<optimized out>) at
/usr/include/qt5/QtCore/qbasicatomic.h:116
#9  QtPrivate::RefCount::isShared (this=<optimized out>) at
/usr/include/qt5/QtCore/qrefcount.h:95
#10 QMap<QString, QString>::detach (this=<optimized out>) at
/usr/include/qt5/QtCore/qmap.h:360
#11 QMap<QString, QString>::operator[] (akey=..., this=<optimized out>) at
/usr/include/qt5/QtCore/qmap.h:658
#12 EtagCache::setEtag (this=this at entry=0x0, remoteId=..., etag=...) at
/var/tmp/portage/kde-apps/kdepim-runtime-16.08.0/work/kdepim-runtime-16.08.0/resources/dav/common/etagcache.cpp:38
#13 0x000000000045569d in DavGroupwareResource::onItemFetched (this=0x1a7abc0,
job=<optimized out>, updateType=DavGroupwareResource::ItemUpdateAdd) at
/var/tmp/portage/kde-apps/kdepim-runtime-16.08.0/work/kdepim-runtime-16.08.0/resources/dav/resource/davgroupwareresource.cpp:959
#14 0x00007f57d55ef882 in QtPrivate::QSlotObjectBase::call (a=0x7fff13f158e0,
r=0x1a7abc0, this=0x1c82ad0) at
../../include/QtCore/../../src/corelib/kernel/qobject_impl.h:124
#15 QMetaObject::activate (sender=sender at entry=0x1cacf60,
signalOffset=<optimized out>, local_signal_index=local_signal_index at entry=3,
argv=argv at entry=0x7fff13f158e0) at kernel/qobject.cpp:3715
#16 0x00007f57d55efdb7 in QMetaObject::activate (sender=sender at entry=0x1cacf60,
m=m at entry=0x7f57d6cee2e0 <KJob::staticMetaObject>,
local_signal_index=local_signal_index at entry=3, argv=argv at entry=0x7fff13f158e0)
at kernel/qobject.cpp:3595
#17 0x00007f57d6a98682 in KJob::result (this=this at entry=0x1cacf60,
_t1=_t1 at entry=0x1cacf60) at
/var/tmp/portage/kde-frameworks/kcoreaddons-5.25.0/work/kcoreaddons-5.25.0_build/src/lib/moc_kjob.cpp:568
#18 0x00007f57d6a99da1 in KJob::finishJob (this=this at entry=0x1cacf60,
emitResult=emitResult at entry=true) at
/var/tmp/portage/kde-frameworks/kcoreaddons-5.25.0/work/kcoreaddons-5.25.0/src/lib/jobs/kjob.cpp:109
#19 0x00007f57d6a99e2a in KJob::emitResult (this=this at entry=0x1cacf60) at
/var/tmp/portage/kde-frameworks/kcoreaddons-5.25.0/work/kcoreaddons-5.25.0/src/lib/jobs/kjob.cpp:293
#20 0x0000000000421bf9 in DavItemFetchJob::davJobFinished (this=0x1cacf60,
job=<optimized out>) at
/var/tmp/portage/kde-apps/kdepim-runtime-16.08.0/work/kdepim-runtime-16.08.0/resources/dav/common/davitemfetchjob.cpp:92
#21 0x00007f57d55ef882 in QtPrivate::QSlotObjectBase::call (a=0x7fff13f15b50,
r=0x1cacf60, this=0x1d06670) at
../../include/QtCore/../../src/corelib/kernel/qobject_impl.h:124
#22 QMetaObject::activate (sender=sender at entry=0x1ca8a60,
signalOffset=<optimized out>, local_signal_index=local_signal_index at entry=3,
argv=argv at entry=0x7fff13f15b50) at kernel/qobject.cpp:3715
#23 0x00007f57d55efdb7 in QMetaObject::activate (sender=sender at entry=0x1ca8a60,
m=m at entry=0x7f57d6cee2e0 <KJob::staticMetaObject>,
local_signal_index=local_signal_index at entry=3, argv=argv at entry=0x7fff13f15b50)
at kernel/qobject.cpp:3595
#24 0x00007f57d6a98682 in KJob::result (this=this at entry=0x1ca8a60,
_t1=_t1 at entry=0x1ca8a60) at
/var/tmp/portage/kde-frameworks/kcoreaddons-5.25.0/work/kcoreaddons-5.25.0_build/src/lib/moc_kjob.cpp:568
#25 0x00007f57d6a99da1 in KJob::finishJob (this=this at entry=0x1ca8a60,
emitResult=emitResult at entry=true) at
/var/tmp/portage/kde-frameworks/kcoreaddons-5.25.0/work/kcoreaddons-5.25.0/src/lib/jobs/kjob.cpp:109
#26 0x00007f57d6a99e2a in KJob::emitResult (this=this at entry=0x1ca8a60) at
/var/tmp/portage/kde-frameworks/kcoreaddons-5.25.0/work/kcoreaddons-5.25.0/src/lib/jobs/kjob.cpp:293
#27 0x00007f57d7ebc7e2 in KIO::SimpleJob::slotFinished
(this=this at entry=0x1ca8a60) at
/var/tmp/portage/kde-frameworks/kio-5.25.0/work/kio-5.25.0/src/core/simplejob.cpp:230
#28 0x00007f57d7ec5b86 in KIO::TransferJob::slotFinished (this=0x1ca8a60) at
/var/tmp/portage/kde-frameworks/kio-5.25.0/work/kio-5.25.0/src/core/transferjob.cpp:166
#29 0x00007f57d7ec5311 in KIO::TransferJob::qt_static_metacall (_o=<optimized
out>, _c=<optimized out>, _id=<optimized out>, _a=<optimized out>) at
/var/tmp/portage/kde-frameworks/kio-5.25.0/work/kio-5.25.0_build/src/core/moc_transferjob.cpp:155
#30 0x00007f57d55ef21c in QMetaObject::activate (sender=sender at entry=0x1a7b1f0,
signalOffset=<optimized out>, local_signal_index=local_signal_index at entry=4,
argv=argv at entry=0x0) at kernel/qobject.cpp:3730
#31 0x00007f57d55efdb7 in QMetaObject::activate (sender=sender at entry=0x1a7b1f0,
m=m at entry=0x7f57d8164180 <KIO::SlaveInterface::staticMetaObject>,
local_signal_index=local_signal_index at entry=4, argv=argv at entry=0x0) at
kernel/qobject.cpp:3595
#32 0x00007f57d7e9df13 in KIO::SlaveInterface::finished
(this=this at entry=0x1a7b1f0) at
/var/tmp/portage/kde-frameworks/kio-5.25.0/work/kio-5.25.0_build/src/core/moc_slaveinterface.cpp:424
#33 0x00007f57d7ea0ea1 in KIO::SlaveInterface::dispatch (this=0x1a7b1f0,
_cmd=<optimized out>, rawdata=...) at
/var/tmp/portage/kde-frameworks/kio-5.25.0/work/kio-5.25.0/src/core/slaveinterface.cpp:160
#34 0x00007f57d7e9e4c7 in KIO::SlaveInterface::dispatch (this=0x1a7b1f0) at
/var/tmp/portage/kde-frameworks/kio-5.25.0/work/kio-5.25.0/src/core/slaveinterface.cpp:89
#35 0x00007f57d7ea2976 in KIO::Slave::gotInput (this=0x1a7b1f0) at
/var/tmp/portage/kde-frameworks/kio-5.25.0/work/kio-5.25.0/src/core/slave.cpp:398
#36 0x00007f57d7f20815 in KIO::Slave::qt_static_metacall (_o=<optimized out>,
_c=<optimized out>, _id=<optimized out>, _a=<optimized out>) at
/var/tmp/portage/kde-frameworks/kio-5.25.0/work/kio-5.25.0_build/src/core/moc_slave.cpp:87
#37 0x00007f57d55ef21c in QMetaObject::activate (sender=0x1c270d0,
signalOffset=<optimized out>, local_signal_index=local_signal_index at entry=0,
argv=argv at entry=0x0) at kernel/qobject.cpp:3730
#38 0x00007f57d55efdb7 in QMetaObject::activate (sender=<optimized out>,
m=m at entry=0x7f57d8162c00 <KIO::Connection::staticMetaObject>,
local_signal_index=local_signal_index at entry=0, argv=argv at entry=0x0) at
kernel/qobject.cpp:3595
#39 0x00007f57d7e4bf17 in KIO::Connection::readyRead (this=<optimized out>) at
/var/tmp/portage/kde-frameworks/kio-5.25.0/work/kio-5.25.0_build/src/core/moc_connection_p.cpp:142
#40 KIO::ConnectionPrivate::dequeue (this=0x1c4cfd0) at
/var/tmp/portage/kde-frameworks/kio-5.25.0/work/kio-5.25.0/src/core/connection.cpp:45
#41 0x00007f57d55f078a in QObject::event (this=0x1c270d0, e=<optimized out>) at
kernel/qobject.cpp:1256
#42 0x00007f57d65355dc in QApplicationPrivate::notify_helper (this=<optimized
out>, receiver=0x1c270d0, e=0x1c811f0) at kernel/qapplication.cpp:3804
#43 0x00007f57d6539d00 in QApplication::notify (this=0x7fff13f167f0,
receiver=0x1c270d0, e=0x1c811f0) at kernel/qapplication.cpp:3561
#44 0x00007f57d55c81e0 in QCoreApplication::notifyInternal2
(receiver=0x1c270d0, event=event at entry=0x1c811f0) at
kernel/qcoreapplication.cpp:1015
#45 0x00007f57d55ca413 in QCoreApplication::sendEvent (event=0x1c811f0,
receiver=<optimized out>) at kernel/qcoreapplication.h:225
#46 QCoreApplicationPrivate::sendPostedEvents (receiver=receiver at entry=0x0,
event_type=event_type at entry=0, data=0x1914b50) at
kernel/qcoreapplication.cpp:1650
#47 0x00007f57d55ca9b8 in QCoreApplication::sendPostedEvents
(receiver=receiver at entry=0x0, event_type=event_type at entry=0) at
kernel/qcoreapplication.cpp:1508
#48 0x00007f57d5614683 in postEventSourceDispatch (s=0x19546f0) at
kernel/qeventdispatcher_glib.cpp:270
#49 0x00007f57cdaa0c6d in g_main_dispatch (context=0x7f57b00016f0) at
/var/tmp/portage/dev-libs/glib-2.46.2-r3/work/glib-2.46.2/glib/gmain.c:3154
#50 g_main_context_dispatch (context=context at entry=0x7f57b00016f0) at
/var/tmp/portage/dev-libs/glib-2.46.2-r3/work/glib-2.46.2/glib/gmain.c:3769
#51 0x00007f57cdaa0f50 in g_main_context_iterate
(context=context at entry=0x7f57b00016f0, block=block at entry=1,
dispatch=dispatch at entry=1, self=<optimized out>) at
/var/tmp/portage/dev-libs/glib-2.46.2-r3/work/glib-2.46.2/glib/gmain.c:3840
#52 0x00007f57cdaa0ffc in g_main_context_iteration (context=0x7f57b00016f0,
may_block=1) at
/var/tmp/portage/dev-libs/glib-2.46.2-r3/work/glib-2.46.2/glib/gmain.c:3901
#53 0x00007f57d56146f7 in QEventDispatcherGlib::processEvents (this=0x195c3e0,
flags=...) at kernel/qeventdispatcher_glib.cpp:417
#54 0x00007f57d55c6d7a in QEventLoop::exec (this=this at entry=0x7fff13f16750,
flags=..., flags at entry=...) at kernel/qeventloop.cpp:204
#55 0x00007f57d55ce83c in QCoreApplication::exec () at
kernel/qcoreapplication.cpp:1285
#56 0x00007f57d5da892c in QGuiApplication::exec () at
kernel/qguiapplication.cpp:1607
#57 0x00007f57d6532235 in QApplication::exec () at kernel/qapplication.cpp:2979
#58 0x00007f57d8da43ae in Akonadi::ResourceBase::init (r=r at entry=0x1a7abc0) at
/var/tmp/portage/kde-apps/akonadi-16.08.0/work/akonadi-16.08.0/src/agentbase/resourcebase.cpp:605
#59 0x0000000000461207 in Akonadi::ResourceBase::init<DavGroupwareResource>
(argc=3, argv=<optimized out>) at
/usr/include/KF5/AkonadiAgentBase/resourcebase.h:196
#60 0x00007f57d4a94620 in __libc_start_main (main=0x415ec0 <main(int, char**)>,
argc=3, argv=0x7fff13f16918, init=<optimized out>, fini=<optimized out>,
rtld_fini=<optimized out>, stack_end=0x7fff13f16908) at libc-start.c:289
#61 0x0000000000415ef9 in _start ()

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