1.4-SVN [NOTstripped][validity: 1.00][frames: 2][xine]
Jeff Mitchell
kde-dev at emailgoeshere.com
Tue Jan 23 17:59:03 UTC 2007
Andrew--
The only two things I can think of, considering that the call came from
mediumChanged, are that a receiver of the changedMedium signal is deleting
the Medium pointer it's sent (which it shouldn't) or that there's something
wonky in the new code...in particular, I'm a little uneasy about this:
for ( Medium::List::iterator it = currMediumList.begin(); it !=
currMediumList.end(); ++it )
{
if ( (*it).name() == name )
{
MediumIterator secIt;
if ( (secIt = m_mediumMap.find( name )) != m_mediumMap.end() )
{
//Refresh the Medium by reconstructing then copying it over.
returnedMedium = *secIt;
*returnedMedium = Medium( *it );
}
I know that in theory iterator magic should be fine, but...
Dan, do you think you could revert to, say, 625100 or earlier and see if you
get the same behavior?
Thanks,
Jeff
On Tuesday 23 January 2007 09:46, Andrew Turner wrote:
> Having just looked at my/Jeff's changes to DeviceManager, I start to
> wonder if they were right. It seems from looking that after having
> called getDevice, the pointer is always deleted. This is not what I
> thought happened, and will be what's causing the crash.
>
> I'm going out soon, but will fix this tomorrow if nobody else has -
> maybe the easiest way is to just revert most of the changes to
> devicemanager.cpp, given we are so close to a release... otherwise,
> the thing to do would be to remove almost all the delete calls (and
> maybe create a removeDevice method that deletes a device and removes
> it from the mediumMap, for the cases where devices are truly being
> removed).
>
> Andrew
>
> On 23/01/07, Dan Meltzer <hydrogen at notyetimplemented.com> wrote:
> > Dynamic Collections-- removing any mount point or adding any mount point
> > ends in explosion here with nfs. In this case my normal collection
> > (local) was at /mnt/music and I mounted a nfs directory at /mnt, amarok
> > went boom :(
> >
> >
> > Amarok has crashed! We are terribly sorry about this :(
> >
> > But, all is not lost! You could potentially help us fix the crash.
> > Information describing the crash is below, so just click send, or if you
> > have time, write a brief description of how the crash happened first.
> >
> > Many thanks.
> >
> >
> >
> >
> >
> >
> > The information below is to help the developers identify the problem,
> > please do not modify it.
> >
> >
> >
> > ======== DEBUG INFORMATION =======
> > Version: 1.4-SVN
> > Engine: xine-engine
> > Build date: Jan 22 2007
> > CC version: 4.1.1 (Gentoo 4.1.1-r3)
> > KDElibs: 3.5.5
> > Qt: 3.3.6
> > TagLib: 1.4.0
> > CPU count: 1
> >
> > ==== file `which amarokapp` =======
> > /usr/kde/3.5/bin/amarokapp: ELF 32-bit LSB executable, Intel 80386,
> > version 1 (SYSV), for GNU/Linux 2.6.9, dynamically linked (uses shared
> > libs), not stripped
> >
> >
> > ==== (gdb) bt =====================
> > Using host libthread_db library "/lib/libthread_db.so.1".
> > `system-supplied DSO at 0xffffe000' has disappeared; keeping its symbols.
> > [Thread debugging using libthread_db enabled]
> > 0xffffe410 in __kernel_vsyscall ()
> > #0 0xffffe410 in __kernel_vsyscall ()
> > #0 0xffffe410 in __kernel_vsyscall ()
> > No symbol table info available.
> > ==== (gdb) thread apply all bt ====
> >
> >
> > ==== kdBacktrace() ================
> > [
> > 0: /usr/kde/3.5/lib/libkdecore.so.4(_Z11kdBacktracei+0x44) [0x4deaf7d4]
> > 1: /usr/kde/3.5/lib/libkdecore.so.4(_Z11kdBacktracev+0x2a) [0x4deafb1a]
> > 2: amarokapp(_ZN6Amarok5Crash12crashHandlerEi+0xca4) [0x804deb2]
> > 3: [0xffffe420]
> > 4: amarokapp(_ZN7QStringD1Ev+0x1f) [0x804e57f]
> > 5: amarokapp(_ZN14QValueListNodeI7QStringED1Ev+0x20) [0x804e69c]
> > 6: amarokapp(_ZN17QValueListPrivateI7QStringED1Ev+0x3e) [0x804e6e0]
> > 7: amarokapp(_ZN17QValueListPrivateI7QStringE14derefAndDeleteEv+0x32)
> > [0x804e75a]
> > 8: amarokapp(_ZN10QValueListI7QStringED2Ev+0x1f) [0x804e78b]
> > 9: amarokapp(_ZN11QStringListD1Ev+0x1d) [0x804e7af]
> > 10: /usr/kde/3.5/lib/libamarok.so.0(_ZN6MediumD1Ev+0x1d) [0x4319bdc3]
> > 11:
> > /usr/kde/3.5/lib/libamarok.so.0(_ZN14QValueListNodeIK6MediumED1Ev+0x20)
> > [0x4319ef0a]
> > 12:
> > /usr/kde/3.5/lib/libamarok.so.0(_ZN17QValueListPrivateIK6MediumED1Ev+0x74
> >) [0x4319efb2]
> > 13: /usr/kde/3.5/lib/libamarok.so.0
> > (_ZN17QValueListPrivateIK6MediumE14derefAndDeleteEv+0x32) [0x4319eff6]
> > 14: /usr/kde/3.5/lib/libamarok.so.0(_ZN10QValueListIK6MediumED1Ev+0x1f)
> > [0x4319f027]
> > 15: /usr/kde/3.5/lib/libamarok.so.0
> > (_ZN13DeviceManager9getDeviceE7QString+0x249) [0x4319d4db]
> > 16: /usr/kde/3.5/lib/libamarok.so.0
> > (_ZN13DeviceManager13mediumChangedE7QString+0x5d) [0x4319d54f]
> > 17: /usr/kde/3.5/lib/libamarok.so.0
> > (_ZN6Amarok18DcopDevicesHandler13mediumChangedE7QString+0x3a)
> > [0x433579ee] 18: /usr/kde/3.5/lib/libamarok.so.0
> > (_ZN22AmarokDevicesInterface7processERK8QCStringRK9QMemArrayIcERS0_RS4_+0
> >x35d) [0x4334c5e9]
> > 19: /usr/kde/3.5/lib/libDCOP.so.4
> > (_ZN10DCOPClient7receiveERK8QCStringS2_S2_RK9QMemArrayIcERS0_RS4_+0x764)
> > [0x4da0abc4]
> > 20: /usr/kde/3.5/lib/libDCOP.so.4 [0x4da0ef32]
> > 21: /usr/kde/3.5/lib/libDCOP.so.4
> > (_ZN10DCOPClient29processPostedMessagesInternalEv+0xac) [0x4da0f16c]
> > 22:
> > /usr/kde/3.5/lib/libDCOP.so.4(_ZN10DCOPClient9qt_invokeEiP8QUObject+0x6b)
> > [0x4da0f23b]
> > 23: /usr/qt/3/lib/libqt-mt.so.3
> > (_ZN7QObject15activate_signalEP15QConnectionListP8QUObject+0x169)
> > [0x4d560059]
> > 24: /usr/qt/3/lib/libqt-mt.so.3(_ZN7QObject15activate_signalEi+0xbd)
> > [0x4d560cad]
> > 25: /usr/qt/3/lib/libqt-mt.so.3(_ZN6QTimer7timeoutEv+0x29) [0x4d893df9]
> > 26: /usr/qt/3/lib/libqt-mt.so.3(_ZN6QTimer5eventEP6QEvent+0x3e)
> > [0x4d58310e] 27: /usr/qt/3/lib/libqt-mt.so.3
> > (_ZN12QApplication14internalNotifyEP7QObjectP6QEvent+0x97) [0x4d5014d7]
> > 28: /usr/qt/3/lib/libqt-mt.so.3
> > (_ZN12QApplication6notifyEP7QObjectP6QEvent+0x71) [0x4d502051]
> > 29: /usr/kde/3.5/lib/libkdecore.so.4
> > (_ZN12KApplication6notifyEP7QObjectP6QEvent+0x1de) [0x4de9d4be]
> > 30: /usr/qt/3/lib/libqt-mt.so.3(_ZN10QEventLoop14activateTimersEv+0x1f9)
> > [0x4d4f6679]
> > 31: /usr/qt/3/lib/libqt-mt.so.3(_ZN10QEventLoop13processEventsEj+0x80c)
> > [0x4d4b1d0c]
> > 32: /usr/qt/3/lib/libqt-mt.so.3(_ZN10QEventLoop9enterLoopEv+0x50)
> > [0x4d517bd0] 33: /usr/qt/3/lib/libqt-mt.so.3(_ZN10QEventLoop4execEv+0x26)
> > [0x4d517a56] 34:
> > /usr/qt/3/lib/libqt-mt.so.3(_ZN12QApplication4execEv+0x1f) [0x4d500f6f]
> > 35: amarokapp [0x804d062]
> > 36: /lib/libc.so.6(__libc_start_main+0xdc) [0x49e0987c]
> > 37: amarokapp(_ZN6QGList5clearEv+0xcd) [0x804c6c1]
> > ]
> >
> >
> > _______________________________________________
> > Amarok mailing list
> > Amarok at kde.org
> > https://mail.kde.org/mailman/listinfo/amarok
>
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