Application: amarok (2.3.2) KDE Platform Version: 4.4.4 (KDE 4.4.4) "release 3" Qt Version: 4.6.3 Operating System: Linux 2.6.34.7-0.5-desktop x86_64 Distribution: "openSUSE 11.3 (x86_64)" -- Information about the crash: Amarok crashes on startup. There hase been no changes in configuration. Updates installed yesterday: wxWidgets version 2.8.11.0-4.2 compat-wireless-scripts version 2.6.36.4-1.1 wxWidgets-gl version 2.8.11.0-4.2 wxWidgets-compat version 2.8.11.0-4.2 compat-wireless-kmp-desktop version 2.6.36.4_k2.6.34.7_0.5-1.1 python-wxGTK version 2.8.11.0-4.2 libstdc++33-32bit version 3.3.3-22.1 libstdc++33 version 3.3.3-22.1 libfuse2 version 2.8.5-2.3.1 fuse version 2.8.5-2.3.1 The crash can be reproduced every time. -- Backtrace: Application: Amarok (amarok), signal: Segmentation fault [Current thread is 1 (Thread 0x7fd1af3f17a0 (LWP 4053))] Thread 12 (Thread 0x7fd194b79710 (LWP 4055)): #0 0x00007fd1aa77d709 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 #1 0x00007fd19a880951 in metronom_sync_loop () from /usr/lib64/libxine.so.1 #2 0x00007fd1aa778a4f in start_thread () from /lib64/libpthread.so.0 #3 0x00007fd1ac0fb82d in clone () from /lib64/libc.so.6 #4 0x0000000000000000 in ?? () Thread 11 (Thread 0x7fd194378710 (LWP 4056)): #0 0x00007fd1aa77b0b4 in pthread_mutex_lock () from /lib64/libpthread.so.0 #1 0x00007fd1a5f3bfae in g_main_context_prepare () from /usr/lib64/libglib-2.0.so.0 #2 0x00007fd1a5f3ce69 in ?? () from /usr/lib64/libglib-2.0.so.0 #3 0x00007fd1a5f3d510 in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0 #4 0x00007fd1ad6a26d6 in QEventDispatcherGlib::processEvents (this=0x8e8db0, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:414 #5 0x00007fd1ad679292 in QEventLoop::processEvents (this=<value optimized out>, flags=...) at kernel/qeventloop.cpp:149 #6 0x00007fd1ad679495 in QEventLoop::exec (this=0x7fd194377d90, flags=...) at kernel/qeventloop.cpp:201 #7 0x00007fd1ad5902cf in QThread::exec (this=<value optimized out>) at thread/qthread.cpp:487 #8 0x00007fd19aade3b4 in ?? () from /usr/lib64/kde4/plugins/phonon_backend/phonon_xine.so #9 0x00007fd1ad592bf5 in QThreadPrivate::start (arg=0x98b540) at thread/qthread_unix.cpp:248 #10 0x00007fd1aa778a4f in start_thread () from /lib64/libpthread.so.0 #11 0x00007fd1ac0fb82d in clone () from /lib64/libc.so.6 #12 0x0000000000000000 in ?? () Thread 10 (Thread 0x7fd19396d710 (LWP 4059)): #0 0x00007fd1ac0ee3fd in read () from /lib64/libc.so.6 #1 0x00007fd19b0240e5 in ?? () from /usr/lib64/libasound.so.2 #2 0x00007fd19b01f113 in snd_hctl_handle_events () from /usr/lib64/libasound.so.2 #3 0x00007fd19b029439 in snd_mixer_handle_events () from /usr/lib64/libasound.so.2 #4 0x00007fd193972a18 in ao_alsa_handle_event_thread () from /usr/lib64/xine/plugins/1.29/xineplug_ao_out_alsa.so #5 0x00007fd1aa778a4f in start_thread () from /lib64/libpthread.so.0 #6 0x00007fd1ac0fb82d in clone () from /lib64/libc.so.6 #7 0x0000000000000000 in ?? () Thread 9 (Thread 0x7fd19316c710 (LWP 4060)): #0 0x00007fd1aa77d39c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 #1 0x00007fd19a89296b in ao_loop () from /usr/lib64/libxine.so.1 #2 0x00007fd1aa778a4f in start_thread () from /lib64/libpthread.so.0 #3 0x00007fd1ac0fb82d in clone () from /lib64/libc.so.6 #4 0x0000000000000000 in ?? () Thread 8 (Thread 0x7fd192353710 (LWP 4061)): #0 0x00007fd1aa77d39c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 #1 0x00007fd19a89296b in ao_loop () from /usr/lib64/libxine.so.1 #2 0x00007fd1aa778a4f in start_thread () from /lib64/libpthread.so.0 #3 0x00007fd1ac0fb82d in clone () from /lib64/libc.so.6 #4 0x0000000000000000 in ?? () Thread 7 (Thread 0x7fd191b52710 (LWP 4062)): #0 0x00007fd1aa77d39c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 #1 0x00007fd19a89296b in ao_loop () from /usr/lib64/libxine.so.1 #2 0x00007fd1aa778a4f in start_thread () from /lib64/libpthread.so.0 #3 0x00007fd1ac0fb82d in clone () from /lib64/libc.so.6 #4 0x0000000000000000 in ?? () Thread 6 (Thread 0x7fd191351710 (LWP 4063)): #0 0x00007fd1aa77d39c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 #1 0x00007fd19a89296b in ao_loop () from /usr/lib64/libxine.so.1 #2 0x00007fd1aa778a4f in start_thread () from /lib64/libpthread.so.0 #3 0x00007fd1ac0fb82d in clone () from /lib64/libc.so.6 #4 0x0000000000000000 in ?? () Thread 5 (Thread 0x7fd18260e710 (LWP 4065)): #0 0x00007fd1aa77d39c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 #1 0x00007fd1ad5932bb in wait (this=<value optimized out>, mutex=0x100d520, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:87 #2 QWaitCondition::wait (this=<value optimized out>, mutex=0x100d520, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:159 #3 0x00007fd1a92083f6 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x15be6d0, th=0x1094b30) at /usr/src/debug/kdelibs-4.4.4/threadweaver/Weaver/WeaverImpl.cpp:365 #4 0x00007fd1a920ae35 in waitForAvailableJob (this=0x15bd9a0, th=0x1094b30) at /usr/src/debug/kdelibs-4.4.4/threadweaver/Weaver/WeaverImpl.cpp:356 #5 ThreadWeaver::WorkingHardState::applyForWork (this=0x15bd9a0, th=0x1094b30) at /usr/src/debug/kdelibs-4.4.4/threadweaver/Weaver/WorkingHardState.cpp:71 #6 0x00007fd1a92087ef in ThreadWeaver::ThreadRunHelper::run (this=0x7fd18260ddf0, parent=0x15be6d0, th=0x1094b30) at /usr/src/debug/kdelibs-4.4.4/threadweaver/Weaver/Thread.cpp:87 #7 0x00007fd1a9208878 in ThreadWeaver::Thread::run (this=0x1094b30) at /usr/src/debug/kdelibs-4.4.4/threadweaver/Weaver/Thread.cpp:142 #8 0x00007fd1ad592bf5 in QThreadPrivate::start (arg=0x1094b30) at thread/qthread_unix.cpp:248 #9 0x00007fd1aa778a4f in start_thread () from /lib64/libpthread.so.0 #10 0x00007fd1ac0fb82d in clone () from /lib64/libc.so.6 #11 0x0000000000000000 in ?? () Thread 4 (Thread 0x7fd181e0d710 (LWP 4066)): #0 0x00007fd1aa77d39c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 #1 0x00007fd1ad5932bb in wait (this=<value optimized out>, mutex=0x100d520, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:87 #2 QWaitCondition::wait (this=<value optimized out>, mutex=0x100d520, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:159 #3 0x00007fd1a92083f6 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x15be6d0, th=0x11ea640) at /usr/src/debug/kdelibs-4.4.4/threadweaver/Weaver/WeaverImpl.cpp:365 #4 0x00007fd1a920ae35 in waitForAvailableJob (this=0x15bd9a0, th=0x11ea640) at /usr/src/debug/kdelibs-4.4.4/threadweaver/Weaver/WeaverImpl.cpp:356 #5 ThreadWeaver::WorkingHardState::applyForWork (this=0x15bd9a0, th=0x11ea640) at /usr/src/debug/kdelibs-4.4.4/threadweaver/Weaver/WorkingHardState.cpp:71 #6 0x00007fd1a92087ef in ThreadWeaver::ThreadRunHelper::run (this=0x7fd181e0cdf0, parent=0x15be6d0, th=0x11ea640) at /usr/src/debug/kdelibs-4.4.4/threadweaver/Weaver/Thread.cpp:87 #7 0x00007fd1a9208878 in ThreadWeaver::Thread::run (this=0x11ea640) at /usr/src/debug/kdelibs-4.4.4/threadweaver/Weaver/Thread.cpp:142 #8 0x00007fd1ad592bf5 in QThreadPrivate::start (arg=0x11ea640) at thread/qthread_unix.cpp:248 #9 0x00007fd1aa778a4f in start_thread () from /lib64/libpthread.so.0 #10 0x00007fd1ac0fb82d in clone () from /lib64/libc.so.6 #11 0x0000000000000000 in ?? () Thread 3 (Thread 0x7fd18160c710 (LWP 4067)): #0 0x00007fd1aa77d39c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 #1 0x00007fd1ad5932bb in wait (this=<value optimized out>, mutex=0x100d520, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:87 #2 QWaitCondition::wait (this=<value optimized out>, mutex=0x100d520, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:159 #3 0x00007fd1a92083f6 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x15be6d0, th=0x11e53e0) at /usr/src/debug/kdelibs-4.4.4/threadweaver/Weaver/WeaverImpl.cpp:365 #4 0x00007fd1a920ae35 in waitForAvailableJob (this=0x15bd9a0, th=0x11e53e0) at /usr/src/debug/kdelibs-4.4.4/threadweaver/Weaver/WeaverImpl.cpp:356 #5 ThreadWeaver::WorkingHardState::applyForWork (this=0x15bd9a0, th=0x11e53e0) at /usr/src/debug/kdelibs-4.4.4/threadweaver/Weaver/WorkingHardState.cpp:71 #6 0x00007fd1a92087ef in ThreadWeaver::ThreadRunHelper::run (this=0x7fd18160bdf0, parent=0x15be6d0, th=0x11e53e0) at /usr/src/debug/kdelibs-4.4.4/threadweaver/Weaver/Thread.cpp:87 #7 0x00007fd1a9208878 in ThreadWeaver::Thread::run (this=0x11e53e0) at /usr/src/debug/kdelibs-4.4.4/threadweaver/Weaver/Thread.cpp:142 #8 0x00007fd1ad592bf5 in QThreadPrivate::start (arg=0x11e53e0) at thread/qthread_unix.cpp:248 #9 0x00007fd1aa778a4f in start_thread () from /lib64/libpthread.so.0 #10 0x00007fd1ac0fb82d in clone () from /lib64/libc.so.6 #11 0x0000000000000000 in ?? () Thread 2 (Thread 0x7fd17d44e710 (LWP 4068)): #0 0x00007fd1aa77d39c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 #1 0x00007fd1a8a62e30 in QTWTF::TCMalloc_PageHeap::scavengerThread (this=0x7fd1a8d48220) at ../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:2304 #2 0x00007fd1a8a62e69 in QTWTF::TCMalloc_PageHeap::runScavengerThread (context=0x7fd1a8d562ec) at ../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:1438 #3 0x00007fd1aa778a4f in start_thread () from /lib64/libpthread.so.0 #4 0x00007fd1ac0fb82d in clone () from /lib64/libc.so.6 #5 0x0000000000000000 in ?? () Thread 1 (Thread 0x7fd1af3f17a0 (LWP 4053)): [KCrash Handler] #5 detach (this=0x61007400690085, ptr=...) at /usr/include/QtCore/qhash.h:299 #6 insert (this=0x61007400690085, ptr=...) at /usr/include/QtCore/qhash.h:749 #7 insert (this=0x61007400690085, ptr=...) at /usr/include/QtCore/qset.h:176 #8 Meta::Observer::subscribeTo (this=0x61007400690085, ptr=...) at /usr/src/debug/amarok-2.3.2/src/core/meta/Meta.cpp:65 #9 0x00007fd1ae37b754 in slotUpdateTrack (this=<value optimized out>, track=<value optimized out>) at /usr/src/debug/amarok-2.3.2/src/core-impl/meta/proxy/MetaProxy_p.h:110 #10 MetaProxy::Track::updateTrack (this=<value optimized out>, track=<value optimized out>) at /usr/src/debug/amarok-2.3.2/src/core-impl/meta/proxy/MetaProxy.cpp:452 #11 0x00007fd18a50d71b in Collections::AudioCdCollection::updateProxyTracks (this=0xf689e0) at /usr/src/debug/amarok-2.3.2/src/core-impl/collections/audiocd/AudioCdCollection.cpp:594 #12 0x00007fd18a50f9eb in Collections::AudioCdCollection::infoFetchComplete (this=<value optimized out>, job=<value optimized out>) at /usr/src/debug/amarok-2.3.2/src/core-impl/collections/audiocd/AudioCdCollection.cpp:305 #13 0x00007fd18a5123d4 in Collections::AudioCdCollection::qt_metacall (this=0xf689e0, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x7fffb630d3d0) at /usr/src/debug/amarok-2.3.2/build/src/core-impl/collections/audiocd/AudioCdCollection.moc:127 #14 0x00007fd1ad68da1f in QMetaObject::activate (sender=0x1a08240, m=<value optimized out>, local_signal_index=<value optimized out>, argv=0x7fffb630d3d0) at kernel/qobject.cpp:3295 #15 0x00007fd1ada383a2 in KJob::result(KJob*) () from /usr/lib64/libkdecore.so.5 #16 0x00007fd1ada383e0 in KJob::emitResult() () from /usr/lib64/libkdecore.so.5 #17 0x00007fd1a72ea3fd in KIO::SimpleJob::slotFinished (this=0x1a08240) at /usr/src/debug/kdelibs-4.4.4/kio/kio/job.cpp:517 #18 0x00007fd1a72eabd7 in KIO::TransferJob::slotFinished (this=0x1a08240) at /usr/src/debug/kdelibs-4.4.4/kio/kio/job.cpp:1097 #19 0x00007fd1a72d4f41 in KIO::TransferJob::qt_metacall (this=0x1a08240, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x7fffb630d840) at /usr/src/debug/kdelibs-4.4.4/build/kio/jobclasses.moc:367 #20 0x00007fd1a72d51f0 in KIO::StoredTransferJob::qt_metacall (this=0x1a08240, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x7fffb630d840) at /usr/src/debug/kdelibs-4.4.4/build/kio/jobclasses.moc:477 #21 0x00007fd1ad68da1f in QMetaObject::activate (sender=0x168d4d0, m=<value optimized out>, local_signal_index=<value optimized out>, argv=0x0) at kernel/qobject.cpp:3295 #22 0x00007fd1a7343591 in KIO::SlaveInterface::dispatch (this=0x168d4d0, _cmd=<value optimized out>, rawdata=...) at /usr/src/debug/kdelibs-4.4.4/kio/kio/slaveinterface.cpp:175 #23 0x00007fd1a72aa863 in KIO::SlaveInterface::dispatch (this=<value optimized out>) at /usr/src/debug/kdelibs-4.4.4/kio/kio/slaveinterface.cpp:91 #24 0x00007fd1a72a6076 in KIO::Slave::gotInput (this=0x168d4d0) at /usr/src/debug/kdelibs-4.4.4/kio/kio/slave.cpp:324 #25 0x00007fd1a72ae26c in KIO::Slave::qt_metacall (this=0x168d4d0, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x7fffb630dc50) at /usr/src/debug/kdelibs-4.4.4/build/kio/slave.moc:82 #26 0x00007fd1ad68da1f in QMetaObject::activate (sender=0x2975e80, m=<value optimized out>, local_signal_index=<value optimized out>, argv=0x0) at kernel/qobject.cpp:3295 #27 0x00007fd1a72ae047 in KIO::ConnectionPrivate::dequeue (this=0x29765f0) at /usr/src/debug/kdelibs-4.4.4/kio/kio/connection.cpp:82 #28 0x00007fd1a72ae0fd in KIO::Connection::qt_metacall (this=0x2975e80, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x1180ca0) at /usr/src/debug/kdelibs-4.4.4/build/kio/connection.moc:79 #29 0x00007fd1ad68b509 in QObject::event (this=0x2975e80, e=0x29645e0) at kernel/qobject.cpp:1248 #30 0x00007fd1aca6b4d4 in QApplicationPrivate::notify_helper (this=0x78ed10, receiver=0x2975e80, e=0x29645e0) at kernel/qapplication.cpp:4302 #31 0x00007fd1aca73aca in QApplication::notify (this=<value optimized out>, receiver=0x2975e80, e=0x29645e0) at kernel/qapplication.cpp:4185 #32 0x00007fd1aed9ec06 in KApplication::notify (this=0x7fffb630e6f0, receiver=0x2975e80, event=0x29645e0) at /usr/src/debug/kdelibs-4.4.4/kdeui/kernel/kapplication.cpp:302 #33 0x00007fd1ad679e4c in QCoreApplication::notifyInternal (this=0x7fffb630e6f0, receiver=0x2975e80, event=0x29645e0) at kernel/qcoreapplication.cpp:726 #34 0x00007fd1ad67d5ba in sendEvent (receiver=0x0, event_type=0, data=0x61f6f0) at kernel/qcoreapplication.h:215 #35 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x61f6f0) at kernel/qcoreapplication.cpp:1367 #36 0x00007fd1ad6a2173 in sendPostedEvents (s=<value optimized out>) at kernel/qcoreapplication.h:220 #37 postEventSourceDispatch (s=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:276 #38 0x00007fd1a5f3ca93 in g_main_context_dispatch () from /usr/lib64/libglib-2.0.so.0 #39 0x00007fd1a5f3d270 in ?? () from /usr/lib64/libglib-2.0.so.0 #40 0x00007fd1a5f3d510 in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0 #41 0x00007fd1ad6a267f in QEventDispatcherGlib::processEvents (this=0x625800, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:412 #42 0x00007fd1acb0c14e in QGuiEventDispatcherGlib::processEvents (this=<value optimized out>, flags=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:204 #43 0x00007fd1ad679292 in QEventLoop::processEvents (this=<value optimized out>, flags=...) at kernel/qeventloop.cpp:149 #44 0x00007fd1ad679495 in QEventLoop::exec (this=0x7fffb630e690, flags=...) at kernel/qeventloop.cpp:201 #45 0x00007fd1ad67d88b in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1003 #46 0x00000000004081df in main (argc=1, argv=0x7fffb6310658) at /usr/src/debug/amarok-2.3.2/src/main.cpp:237 Possible duplicates by query: bug 253841, bug 247865, bug 244115, bug 235307, bug 228032. Reported using DrKonqi
Confirmed by duplicate, adapted title.
*** Bug 263768 has been marked as a duplicate of this bug. ***
Created attachment 60126 [details] New crash information added by DrKonqi amarok (2.4.0.90) on KDE Platform 4.6.2 (4.6.2) using Qt 4.7.2 - What I was doing when the application crashed: 1. insert Audio CD 2. Start AMArok 3. Try To Play a Track from the CD Result: The Audio CD Collection showed 0 tracks Amarok Crashed -- Backtrace (Reduced): #6 findChar (str=0x4545454545454545, len=1162167621, ch=..., from=<optimized out>, cs=Qt::CaseSensitive) at tools/qstring.cpp:318 #7 0x00007f668e3576b2 in QString::split (this=0x7ffff3d315a0, sep=..., behavior=QString::KeepEmptyParts, cs=Qt::CaseSensitive) at tools/qstring.cpp:6081 #8 0x00007f6663c6ff8d in Collections::AudioCdCollection::updateProxyTracks (this=0x14774d0) at /usr/include/QtCore/qstring.h:883 #9 0x00007f6663c71fc4 in Collections::AudioCdCollection::infoFetchComplete (this=<optimized out>, job=<optimized out>) at /usr/src/debug/amarok-2.4.0.90/src/core-impl/collections/audiocd/AudioCdCollection.cpp:314 #10 0x00007f6663c7485c in Collections::AudioCdCollection::qt_metacall (this=0x14774d0, _c=QMetaObject::InvokeMetaMethod, _id=<optimized out>, _a=0x7ffff3d31f20) at /usr/src/debug/amarok-2.4.0.90/build/src/core-impl/collections/audiocd/AudioCdCollection.moc:127
Created attachment 60127 [details] log of amarok -debug --nofork I was just testing wether amarok audio CD support was working (because of some complaints on the opensuse ml) but i just found amarok crash amarok was playing music fine before (so i doubt that those crashed tables were crashed before)
I can't reproduce this here with latest git. What doesn't work is the detection of an already inserted CD, but that is another problem.
Closing correctly.
*** Bug 290542 has been marked as a duplicate of this bug. ***
Reopening based on bug 290542
Created attachment 67859 [details] New crash information added by DrKonqi amarok (2.5-GIT) on KDE Platform 4.7.4 (4.7.4) using Qt 4.8.0 I tried this again today with current git and had it crash again: i have no idea how those Qt datatypes are supposed to look, but this is what i get: the cd i inserted has 12 tracks, so i think whatever fills that map inserts crap, or was not done yet? (gdb) p *m_proxyMap.d $11 = { backward = 0xf8f7d8, forward = {0xf9f538, 0x1073e78, 0xbabababababababa, 0xbabababababababa, 0xbabababababababa, 0xbabababababababa, 0xbabababababababa, 0xbabababababababa, 0xbabababababababa, 0xbabababababababa, 0xbabababababababa, 0xbabababababababa}, ref = { _q_value = 1 }, topLevel = 1, size = 12, randomBits = 12, insertInOrder = 0, sharable = 1, strictAlignment = 0, reserved = 0, static shared_null = { backward = 0x7ffff6235820, forward = {0x7ffff6235820, 0x0 <repeats 11 times>}, ref = { _q_value = 1276 }, topLevel = 0, size = 0, randomBits = 0, insertInOrder = 0, sharable = 1, strictAlignment = 0, reserved = 0, static shared_null = <same as static member of an already seen type> } } (gdb) f #2 0x00007fffd9cf9218 in Collections::AudioCdCollection::updateProxyTracks (this=0xf36e70) at /home/amarok-devel/kde/src/amarok/src/core-impl/collections/audiocd/AudioCdCollection.cpp:576 576 const QStringList &parts = urlString.split( '/' ); # set|grep MALLOC MALLOC_CHECK_=3 MALLOC_PERTURB_=69 HTH -- Backtrace (Reduced): #6 findChar (str=0x4545454545454545, len=1162167621, ch=..., from=0, cs=Qt::CaseSensitive) at tools/qstring.cpp:340 #7 0x00007f45ed83e992 in QString::split (this=0x7fff37dab800, sep=..., behavior=QString::KeepEmptyParts, cs=Qt::CaseSensitive) at tools/qstring.cpp:6169 #8 0x00007f45d1708218 in Collections::AudioCdCollection::updateProxyTracks (this=0xf328f0) at /home/amarok-devel/kde/src/amarok/src/core-impl/collections/audiocd/AudioCdCollection.cpp:576 #9 0x00007f45d170adb4 in Collections::AudioCdCollection::infoFetchComplete (this=0xf328f0, job=<optimized out>) at /home/amarok-devel/kde/src/amarok/src/core-impl/collections/audiocd/AudioCdCollection.cpp:317 [...] #11 0x00007f45edd85382 in KJob::result (this=<optimized out>, _t1=0x1955c80) at /usr/src/debug/kdelibs-4.7.4/build/kdecore/kjob.moc:208
*** Bug 296288 has been marked as a duplicate of this bug. ***
*** Bug 297621 has been marked as a duplicate of this bug. ***
Git commit a3d378de5aca583bbbc13d1966df258f27e7f174 by Matěj Laitl. Committed on 07/05/2012 at 23:31. Pushed by laitl into branch 'master'. AudioCdCollection: don't create a reference out of temporary var (crashfix) There's following code in AudioCdCollection::updateProxyTracks(): const QString &urlString = url.url().remove( "audiocd:/" ); Which I think is wrong, because url.url() returns a temporary QString and QString::remove() returns a reference to itself. However, the temporary is AFAICS destroyed as soon as this line ends. This IMO results in urlString being an invalid reference. I'm not really sure about this, I haven't read C++ spec, but given many users report crash on the following line, this could be the culprit. I was never able to reproduce the bug, so I'm shooting blindly. Reporters, please test reproducibility with current git and reopen if this is not fixed. FIXED-IN: 2.6 DIGEST: fix grave crash M +1 -0 ChangeLog M +1 -1 src/core-impl/collections/audiocd/AudioCdCollection.cpp http://commits.kde.org/amarok/a3d378de5aca583bbbc13d1966df258f27e7f174