Application: knotify4 (4.0)
KDE Platform Version: 4.5.80 (4.6 Beta1)
Qt Version: 4.7.1
Operating System: Linux 2.6.36-gentoo-r3 x86_64
Distribution (Platform): Gentoo Packages

-- Information about the crash:
- What I was doing when the application crashed:
I plugged modem to the slot, run usb-modeswitch to switch device from Mass Storage to modem mode. The I connected to network. Modem is connected and works, but now, knotify is crasshing each 2-5 minutes. It is very annoing.

I thing, it have something with switch from USB Mass Storage to USB modem mode.

Dmesg output:
usb 3-2: USB disconnect, address 6
usb 3-2: new full speed USB device using uhci_hcd and address 7
usb 3-2: New USB device found, idVendor=16d5, idProduct=6502
usb 3-2: New USB device strings: Mfr=1, Product=2, SerialNumber=0
usb 3-2: Product: AnyDATA CDMA Products
usb 3-2: Manufacturer: AnyDATA Corporation
scsi7 : usb-storage 3-2:1.3
usbcore: registered new interface driver usbserial
USB Serial support registered for generic
usbcore: registered new interface driver usbserial_generic
usbserial: USB Serial Driver core
USB Serial support registered for GSM modem (1-port)
option 3-2:1.0: GSM modem (1-port) converter detected
usb 3-2: GSM modem (1-port) converter now attached to ttyUSB0
option 3-2:1.1: GSM modem (1-port) converter detected
usb 3-2: GSM modem (1-port) converter now attached to ttyUSB1
option 3-2:1.2: GSM modem (1-port) converter detected
usb 3-2: GSM modem (1-port) converter now attached to ttyUSB2
usbcore: registered new interface driver option
option: v0.7.2:USB Driver for GSM modems
scsi 7:0:0:0: CD-ROM            AnyDATA  CD-ROM           1.00 PQ: 0 ANSI: 2
sr1: scsi3-mmc drive: 46x/120x dvd-ram cdda pop-up
sr 7:0:0:0: Attached scsi CD-ROM sr1
sr 7:0:0:0: Attached scsi generic sg2 type 5
sr1: CDROM (ioctl) error, command: Xpwrite, Read disk info 51 00 00 00 00 00 00 00 02 00
sr: Sense Key : Hardware Error [current] 
sr: Add. Sense: No additional sense information
sr1: CDROM (ioctl) error, command: Get configuration 46 00 00 00 00 00 00 00 20 00
sr: Sense Key : Hardware Error [current] 
sr: Add. Sense: No additional sense information
sr1: CDROM (ioctl) error, command: Get configuration 46 00 00 00 00 00 00 00 20 00
sr: Sense Key : Hardware Error [current] 
sr: Add. Sense: No additional sense information
sr1: CDROM (ioctl) error, command: Get configuration 46 00 00 00 00 00 00 00 20 00
sr: Sense Key : Hardware Error [current] 
sr: Add. Sense: No additional sense information
sr1: CDROM (ioctl) error, command: Get configuration 46 00 00 00 00 00 00 00 20 00
sr: Sense Key : Hardware Error [current] 
sr: Add. Sense: No additional sense information
sr1: CDROM (ioctl) error, command: Get configuration 46 00 00 00 00 00 00 00 20 00
sr: Sense Key : Hardware Error [current] 
sr: Add. Sense: No additional sense information
sr1: CDROM (ioctl) error, command: Get configuration 46 00 00 00 00 00 00 00 20 00
sr: Sense Key : Hardware Error [current] 
sr: Add. Sense: No additional sense information
sr1: CDROM (ioctl) error, command: Get configuration 46 00 00 00 00 00 00 00 20 00
sr: Sense Key : Hardware Error [current] 
sr: Add. Sense: No additional sense information
sr1: CDROM (ioctl) error, command: Get configuration 46 00 00 00 00 00 00 00 20 00
sr: Sense Key : Hardware Error [current] 
sr: Add. Sense: No additional sense information
PPP BSD Compression module registered
PPP Deflate Compression module registered

-- Backtrace:
Application: KNotify (knotify4), signal: Segmentation fault
[Current thread is 1 (Thread 0x7fcd4d16f760 (LWP 4428))]

Thread 2 (Thread 0x7fcd47e26710 (LWP 4429)):
#0  0xffffffffff600177 in ?? ()
#1  0x00007fff37fff7a1 in ?? ()
#2  0x0000003b9ce042f3 in clock_gettime () from /lib/librt.so.1
#3  0x00000037040c9502 in qt_gettime() () from /usr/lib64/qt4/libQtCore.so.4
#4  0x000000370418beed in QTimerInfoList::updateCurrentTime() () from /usr/lib64/qt4/libQtCore.so.4
#5  0x000000370418c275 in QTimerInfoList::timerWait(timeval&) () from /usr/lib64/qt4/libQtCore.so.4
#6  0x000000370418acfc in timerSourcePrepareHelper(GTimerSource*, int*) () from /usr/lib64/qt4/libQtCore.so.4
#7  0x000000370418ada5 in timerSourcePrepare(_GSource*, int*) () from /usr/lib64/qt4/libQtCore.so.4
#8  0x000000370384376e in g_main_context_prepare () from /usr/lib/libglib-2.0.so.0
#9  0x0000003703844649 in g_main_context_iterate.clone.5 () from /usr/lib/libglib-2.0.so.0
#10 0x0000003703844ced in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#11 0x000000370418b506 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/qt4/libQtCore.so.4
#12 0x000000370415f9b2 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/qt4/libQtCore.so.4
#13 0x000000370415fbf4 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/qt4/libQtCore.so.4
#14 0x0000003704075f94 in QThread::exec() () from /usr/lib64/qt4/libQtCore.so.4
#15 0x0000003704141748 in QInotifyFileSystemWatcherEngine::run() () from /usr/lib64/qt4/libQtCore.so.4
#16 0x000000370407875e in QThreadPrivate::start(void*) () from /usr/lib64/qt4/libQtCore.so.4
#17 0x0000003b9ba06d5c in start_thread () from /lib/libpthread.so.0
#18 0x0000003b9b2d15ed in clone () from /lib/libc.so.6

Thread 1 (Thread 0x7fcd4d16f760 (LWP 4428)):
[KCrash Handler]
#6  Solid::StorageAccess::d_func (this=0x0) at /var/tmp/portage/kde-base/kdelibs-4.5.80-r1/work/kdelibs-4.5.80/solid/solid/storageaccess.h:48
#7  0x0000003705443eb9 in Solid::StorageAccess::isAccessible (this=0x0) at /var/tmp/portage/kde-base/kdelibs-4.5.80-r1/work/kdelibs-4.5.80/solid/solid/storageaccess.cpp:67
#8  0x000000000041d5e1 in KSolidNotify::isSafelyRemovable(QString const&) ()
#9  0x000000000041dba0 in KSolidNotify::storageEjectDone(Solid::ErrorType, QVariant, QString const&) ()
#10 0x000000000041e1ed in KSolidNotify::qt_metacall(QMetaObject::Call, int, void**) ()
#11 0x0000003704174c97 in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) () from /usr/lib64/qt4/libQtCore.so.4
#12 0x000000370544287b in Solid::OpticalDrive::ejectDone (this=0x0, _t1=Solid::NoError, _t2=<value optimized out>, _t3=<value optimized out>) at /var/tmp/portage/kde-base/kdelibs-4.5.80-r1/work/kdelibs-4.5.80_build/solid/solid/opticaldrive.moc:173
#13 0x0000003705442be2 in Solid::OpticalDrive::qt_metacall (this=0x2091290, _c=QMetaObject::InvokeMetaMethod, _id=-2, _a=0x7fff37fa8220) at /var/tmp/portage/kde-base/kdelibs-4.5.80-r1/work/kdelibs-4.5.80_build/solid/solid/opticaldrive.moc:127
#14 0x0000003704174c97 in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) () from /usr/lib64/qt4/libQtCore.so.4
#15 0x0000003705468a3b in Solid::Backends::Hal::Cdrom::ejectDone (this=0x0, _t1=Solid::NoError, _t2=<value optimized out>, _t3=<value optimized out>) at /var/tmp/portage/kde-base/kdelibs-4.5.80-r1/work/kdelibs-4.5.80_build/solid/solid/backends/hal/halcdrom.moc:122
#16 0x0000003705468b95 in Solid::Backends::Hal::Cdrom::slotEjectDone (this=0x212eff0, error=0, errorString=...) at /var/tmp/portage/kde-base/kdelibs-4.5.80-r1/work/kdelibs-4.5.80/solid/solid/backends/hal/halcdrom.cpp:215
#17 0x00000037054695a6 in Solid::Backends::Hal::Cdrom::qt_metacall (this=0x212eff0, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x7fff37fa8370) at /var/tmp/portage/kde-base/kdelibs-4.5.80-r1/work/kdelibs-4.5.80_build/solid/solid/backends/hal/halcdrom.moc:103
#18 0x0000003706821d6b in QDBusConnectionPrivate::deliverCall(QObject*, int, QDBusMessage const&, QList<int> const&, int) () from /usr/lib64/qt4/libQtDBus.so.4
#19 0x000000370682cbdf in QDBusCallDeliveryEvent::placeMetaCall(QObject*) () from /usr/lib64/qt4/libQtDBus.so.4
#20 0x000000370417479a in QObject::event(QEvent*) () from /usr/lib64/qt4/libQtCore.so.4
#21 0x00000037047c7844 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib64/qt4/libQtGui.so.4
#22 0x00000037047cc30a in QApplication::notify(QObject*, QEvent*) () from /usr/lib64/qt4/libQtGui.so.4
#23 0x000000370744d411 in KApplication::notify (this=0x7fff37fa9010, receiver=0x212eff0, event=0x2135d80) at /var/tmp/portage/kde-base/kdelibs-4.5.80-r1/work/kdelibs-4.5.80/kdeui/kernel/kapplication.cpp:311
#24 0x000000370416060b in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib64/qt4/libQtCore.so.4
#25 0x0000003704163dc4 in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () from /usr/lib64/qt4/libQtCore.so.4
#26 0x000000370418b313 in postEventSourceDispatch(_GSource*, int (*)(void*), void*) () from /usr/lib64/qt4/libQtCore.so.4
#27 0x0000003703844272 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#28 0x0000003703844a50 in g_main_context_iterate.clone.5 () from /usr/lib/libglib-2.0.so.0
#29 0x0000003703844ced in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#30 0x000000370418b4af in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/qt4/libQtCore.so.4
#31 0x000000370486c23e in QGuiEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/qt4/libQtGui.so.4
#32 0x000000370415f9b2 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/qt4/libQtCore.so.4
#33 0x000000370415fbf4 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/qt4/libQtCore.so.4
#34 0x000000370416407b in QCoreApplication::exec() () from /usr/lib64/qt4/libQtCore.so.4
#35 0x000000000040a89f in main ()

Reported using DrKonqi