Application: amarok (2.4-GIT)
KDE Platform Version: 4.6.1 (4.6.1)
Qt Version: 4.7.2
Operating System: Linux 2.6.38-gentoo-r1 x86_64
Distribution (Platform): Gentoo Packages

-- Information about the crash:
- What I was doing when the application crashed:

I started a file transfer to an iPod nano 4th Gen.  Amarok indicates it is trasnferring files ("Transferring Tracks to Device"), but the progress bar sits at 0% indefinitely.

Clicking the cancel icon next to the progress bar makes it disappear, suggesting the transfer has been cancelled.  However, any subsequent attempt to transfer a file gives an error announcing that a file transfer is already in progress. ("Tracks not copied: the device is already being copied to")

-- Backtrace:
Application: Amarok (amarok), signal: Segmentation fault
[Current thread is 1 (Thread 0x7f7a2eff07a0 (LWP 7700))]

Thread 7 (Thread 0x7f7a0da53700 (LWP 7770)):
#0  0x00007f7a29b1b62c in pthread_cond_wait () from /lib64/libpthread.so.0
#1  0x00007f7a2c1a45db in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib64/qt4/libQtCore.so.4
#2  0x00007f7a28ebe061 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x254bcd0, th=0x256cc50) at /var/tmp/portage/kde-base/kdelibs-4.6.1-r2/work/kdelibs-4.6.1/threadweaver/Weaver/WeaverImpl.cpp:365
#3  0x00007f7a28ec1a20 in ThreadWeaver::WorkingHardState::applyForWork (this=0x2564280, th=0x256cc50) at /var/tmp/portage/kde-base/kdelibs-4.6.1-r2/work/kdelibs-4.6.1/threadweaver/Weaver/WorkingHardState.cpp:71
#4  0x00007f7a28ec1a39 in ThreadWeaver::WorkingHardState::applyForWork (this=0x2564280, th=0x256cc50) at /var/tmp/portage/kde-base/kdelibs-4.6.1-r2/work/kdelibs-4.6.1/threadweaver/Weaver/WorkingHardState.cpp:74
#5  0x00007f7a28ec1a39 in ThreadWeaver::WorkingHardState::applyForWork (this=0x2564280, th=0x256cc50) at /var/tmp/portage/kde-base/kdelibs-4.6.1-r2/work/kdelibs-4.6.1/threadweaver/Weaver/WorkingHardState.cpp:74
#6  0x00007f7a28ec0104 in ThreadWeaver::ThreadRunHelper::run (this=0x7f7a0da52d30, parent=0x254bcd0, th=0x256cc50) at /var/tmp/portage/kde-base/kdelibs-4.6.1-r2/work/kdelibs-4.6.1/threadweaver/Weaver/Thread.cpp:87
#7  0x00007f7a28ec01e4 in ThreadWeaver::Thread::run (this=0x256cc50) at /var/tmp/portage/kde-base/kdelibs-4.6.1-r2/work/kdelibs-4.6.1/threadweaver/Weaver/Thread.cpp:142
#8  0x00007f7a2c1a3ef5 in QThreadPrivate::start(void*) () from /usr/lib64/qt4/libQtCore.so.4
#9  0x00007f7a21082373 in ?? () from //usr/lib64/opengl/nvidia/lib/libGL.so.1
#10 0x00007f7a29b16d4c in start_thread () from /lib64/libpthread.so.0
#11 0x00007f7a2b95640d in clone () from /lib64/libc.so.6

Thread 6 (Thread 0x7f7a06834700 (LWP 7819)):
#0  0x00007f7a29b1b62c in pthread_cond_wait () from /lib64/libpthread.so.0
#1  0x00007f7a2c1a45db in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib64/qt4/libQtCore.so.4
#2  0x00007f7a28ebe061 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x254bcd0, th=0x2c93b90) at /var/tmp/portage/kde-base/kdelibs-4.6.1-r2/work/kdelibs-4.6.1/threadweaver/Weaver/WeaverImpl.cpp:365
#3  0x00007f7a28ec1a20 in ThreadWeaver::WorkingHardState::applyForWork (this=0x2564280, th=0x2c93b90) at /var/tmp/portage/kde-base/kdelibs-4.6.1-r2/work/kdelibs-4.6.1/threadweaver/Weaver/WorkingHardState.cpp:71
#4  0x00007f7a28ec1a39 in ThreadWeaver::WorkingHardState::applyForWork (this=0x2564280, th=0x2c93b90) at /var/tmp/portage/kde-base/kdelibs-4.6.1-r2/work/kdelibs-4.6.1/threadweaver/Weaver/WorkingHardState.cpp:74
#5  0x00007f7a28ec1a39 in ThreadWeaver::WorkingHardState::applyForWork (this=0x2564280, th=0x2c93b90) at /var/tmp/portage/kde-base/kdelibs-4.6.1-r2/work/kdelibs-4.6.1/threadweaver/Weaver/WorkingHardState.cpp:74
#6  0x00007f7a28ec1a39 in ThreadWeaver::WorkingHardState::applyForWork (this=0x2564280, th=0x2c93b90) at /var/tmp/portage/kde-base/kdelibs-4.6.1-r2/work/kdelibs-4.6.1/threadweaver/Weaver/WorkingHardState.cpp:74
#7  0x00007f7a28ec1a39 in ThreadWeaver::WorkingHardState::applyForWork (this=0x2564280, th=0x2c93b90) at /var/tmp/portage/kde-base/kdelibs-4.6.1-r2/work/kdelibs-4.6.1/threadweaver/Weaver/WorkingHardState.cpp:74
#8  0x00007f7a28ec1a39 in ThreadWeaver::WorkingHardState::applyForWork (this=0x2564280, th=0x2c93b90) at /var/tmp/portage/kde-base/kdelibs-4.6.1-r2/work/kdelibs-4.6.1/threadweaver/Weaver/WorkingHardState.cpp:74
#9  0x00007f7a28ec0104 in ThreadWeaver::ThreadRunHelper::run (this=0x7f7a06833d30, parent=0x254bcd0, th=0x2c93b90) at /var/tmp/portage/kde-base/kdelibs-4.6.1-r2/work/kdelibs-4.6.1/threadweaver/Weaver/Thread.cpp:87
#10 0x00007f7a28ec01e4 in ThreadWeaver::Thread::run (this=0x2c93b90) at /var/tmp/portage/kde-base/kdelibs-4.6.1-r2/work/kdelibs-4.6.1/threadweaver/Weaver/Thread.cpp:142
#11 0x00007f7a2c1a3ef5 in QThreadPrivate::start(void*) () from /usr/lib64/qt4/libQtCore.so.4
#12 0x00007f7a21082373 in ?? () from //usr/lib64/opengl/nvidia/lib/libGL.so.1
#13 0x00007f7a29b16d4c in start_thread () from /lib64/libpthread.so.0
#14 0x00007f7a2b95640d in clone () from /lib64/libc.so.6

Thread 5 (Thread 0x7f7a05e26700 (LWP 7824)):
#0  0x00007f7a29b1b62c in pthread_cond_wait () from /lib64/libpthread.so.0
#1  0x00007f7a2c1a45db in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib64/qt4/libQtCore.so.4
#2  0x00007f7a28ebe061 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x254bcd0, th=0x2c84620) at /var/tmp/portage/kde-base/kdelibs-4.6.1-r2/work/kdelibs-4.6.1/threadweaver/Weaver/WeaverImpl.cpp:365
#3  0x00007f7a28ec1a20 in ThreadWeaver::WorkingHardState::applyForWork (this=0x2564280, th=0x2c84620) at /var/tmp/portage/kde-base/kdelibs-4.6.1-r2/work/kdelibs-4.6.1/threadweaver/Weaver/WorkingHardState.cpp:71
#4  0x00007f7a28ec1a39 in ThreadWeaver::WorkingHardState::applyForWork (this=0x2564280, th=0x2c84620) at /var/tmp/portage/kde-base/kdelibs-4.6.1-r2/work/kdelibs-4.6.1/threadweaver/Weaver/WorkingHardState.cpp:74
#5  0x00007f7a28ec0104 in ThreadWeaver::ThreadRunHelper::run (this=0x7f7a05e25d30, parent=0x254bcd0, th=0x2c84620) at /var/tmp/portage/kde-base/kdelibs-4.6.1-r2/work/kdelibs-4.6.1/threadweaver/Weaver/Thread.cpp:87
#6  0x00007f7a28ec01e4 in ThreadWeaver::Thread::run (this=0x2c84620) at /var/tmp/portage/kde-base/kdelibs-4.6.1-r2/work/kdelibs-4.6.1/threadweaver/Weaver/Thread.cpp:142
#7  0x00007f7a2c1a3ef5 in QThreadPrivate::start(void*) () from /usr/lib64/qt4/libQtCore.so.4
#8  0x00007f7a21082373 in ?? () from //usr/lib64/opengl/nvidia/lib/libGL.so.1
#9  0x00007f7a29b16d4c in start_thread () from /lib64/libpthread.so.0
#10 0x00007f7a2b95640d in clone () from /lib64/libc.so.6

Thread 4 (Thread 0x7f7a05625700 (LWP 7825)):
#0  0x00007f7a29b1b62c in pthread_cond_wait () from /lib64/libpthread.so.0
#1  0x00007f7a2c1a45db in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib64/qt4/libQtCore.so.4
#2  0x00007f7a28ebe061 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x254bcd0, th=0x7f7a0000b1d0) at /var/tmp/portage/kde-base/kdelibs-4.6.1-r2/work/kdelibs-4.6.1/threadweaver/Weaver/WeaverImpl.cpp:365
#3  0x00007f7a28ec1a20 in ThreadWeaver::WorkingHardState::applyForWork (this=0x2564280, th=0x7f7a0000b1d0) at /var/tmp/portage/kde-base/kdelibs-4.6.1-r2/work/kdelibs-4.6.1/threadweaver/Weaver/WorkingHardState.cpp:71
#4  0x00007f7a28ec0104 in ThreadWeaver::ThreadRunHelper::run (this=0x7f7a05624d30, parent=0x254bcd0, th=0x7f7a0000b1d0) at /var/tmp/portage/kde-base/kdelibs-4.6.1-r2/work/kdelibs-4.6.1/threadweaver/Weaver/Thread.cpp:87
#5  0x00007f7a28ec01e4 in ThreadWeaver::Thread::run (this=0x7f7a0000b1d0) at /var/tmp/portage/kde-base/kdelibs-4.6.1-r2/work/kdelibs-4.6.1/threadweaver/Weaver/Thread.cpp:142
#6  0x00007f7a2c1a3ef5 in QThreadPrivate::start(void*) () from /usr/lib64/qt4/libQtCore.so.4
#7  0x00007f7a21082373 in ?? () from //usr/lib64/opengl/nvidia/lib/libGL.so.1
#8  0x00007f7a29b16d4c in start_thread () from /lib64/libpthread.so.0
#9  0x00007f7a2b95640d in clone () from /lib64/libc.so.6

Thread 3 (Thread 0x7f79fffff700 (LWP 7834)):
#0  0x00007f7a29b1b62c in pthread_cond_wait () from /lib64/libpthread.so.0
#1  0x00007f7a22ea25d4 in WTF::TCMalloc_PageHeap::runScavengerThread(void*) () from /usr/lib64/qt4/libQtWebKit.so.4
#2  0x00007f7a21082373 in ?? () from //usr/lib64/opengl/nvidia/lib/libGL.so.1
#3  0x00007f7a29b16d4c in start_thread () from /lib64/libpthread.so.0
#4  0x00007f7a2b95640d in clone () from /lib64/libc.so.6

Thread 2 (Thread 0x7f79ff3bf700 (LWP 7849)):
#0  0x00007f7a2b925a9d in nanosleep () from /lib64/libc.so.6
#1  0x00007f7a2b92592f in sleep () from /lib64/libc.so.6
#2  0x00007f7a2776ec86 in QTWTF::TCMalloc_PageHeap::scavengerThread() () from /usr/lib64/qt4/libQtScript.so.4
#3  0x00007f7a2776ed29 in QTWTF::TCMalloc_PageHeap::runScavengerThread(void*) () from /usr/lib64/qt4/libQtScript.so.4
#4  0x00007f7a21082373 in ?? () from //usr/lib64/opengl/nvidia/lib/libGL.so.1
#5  0x00007f7a29b16d4c in start_thread () from /lib64/libpthread.so.0
#6  0x00007f7a2b95640d in clone () from /lib64/libc.so.6

Thread 1 (Thread 0x7f7a2eff07a0 (LWP 7700)):
[KCrash Handler]
#6  0x00007f7a29d6f73b in QDBusAdaptorConnector::relaySlot(void**) () from /usr/lib64/qt4/libQtDBus.so.4
#7  0x00007f7a29d6fa85 in QDBusAdaptorConnector::qt_metacall(QMetaObject::Call, int, void**) () from /usr/lib64/qt4/libQtDBus.so.4
#8  0x00007f7a2c2a0637 in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) () from /usr/lib64/qt4/libQtCore.so.4
#9  0x00007f7a2c2a0b3f in QObject::destroyed(QObject*) () from /usr/lib64/qt4/libQtCore.so.4
#10 0x00007f7a2c2a2f47 in QObject::~QObject() () from /usr/lib64/qt4/libQtCore.so.4
#11 0x00007f7a295293c9 in KIO::Scheduler::~Scheduler (this=0x7f7a0824ed00, __in_chrg=<value optimized out>) at /var/tmp/portage/kde-base/kdelibs-4.6.1-r2/work/kdelibs-4.6.1/kio/kio/scheduler.cpp:768
#12 0x00007f7a29533c92 in KIO::SchedulerPrivate::~SchedulerPrivate (this=0x7f7a0824e5f0, __in_chrg=<value optimized out>) at /var/tmp/portage/kde-base/kdelibs-4.6.1-r2/work/kdelibs-4.6.1/kio/kio/scheduler.cpp:667
#13 0x00007f7a2952cc3b in destroy () at /var/tmp/portage/kde-base/kdelibs-4.6.1-r2/work/kdelibs-4.6.1/kio/kio/scheduler.cpp:732
#14 0x00007f7a2b8b4521 in __run_exit_handlers () from /lib64/libc.so.6
#15 0x00007f7a2b8b4575 in exit () from /lib64/libc.so.6
#16 0x00007f7a2b89dec4 in __libc_start_main () from /lib64/libc.so.6
#17 0x0000000000401f99 in _start ()

Possible duplicates by query: bug 256644, bug 248567, bug 241344, bug 234484.

Reported using DrKonqi