[kmix] [Bug 370650] Crash on session restore

[Maarten ter Huurne]

https://bugs.kde.org/show_bug.cgi?id=370650

Maarten ter Huurne  changed:

   What|Removed |Added

 Resolution|WAITINGFORINFO  |WORKSFORME
 Status|NEEDSINFO   |RESOLVED

--- Comment #8 from Maarten ter Huurne  ---
This issue doesn't happen anymore for me. I don't remember exactly when it
stopped happening though.

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[kmix] [Bug 370650] Crash on session restore

[Andrew Crouthamel]

https://bugs.kde.org/show_bug.cgi?id=370650

Andrew Crouthamel  changed:

   What|Removed |Added

 Status|REPORTED|NEEDSINFO
 Resolution|--- |WAITINGFORINFO

--- Comment #7 from Andrew Crouthamel  ---
Dear Bug Submitter,

This bug has been stagnant for a long time. Could you help us out and re-test
if the bug is valid in the latest version? I am setting the status to NEEDSINFO
pending your response, please change the Status back to REPORTED when you
respond.

Thank you for helping us make KDE software even better for everyone!

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[kmix] [Bug 370650] Crash on session restore

[Maarten ter Huurne via KDE Bugzilla]

https://bugs.kde.org/show_bug.cgi?id=370650

--- Comment #6 from Maarten ter Huurne  ---
I had a crash of Konsole with a very similar backtrace (also "Internal error:
got invalid meta type %d (%s) when trying to convert to meta type %d (%s)") and
found bug 369050, which reports what looks like the same problem. So I think
it's a bug in a library rather than the application, but I don't know which
package it should be filed on.

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[kmix] [Bug 370650] Crash on session restore

[Jeff Hodd via KDE Bugzilla]

https://bugs.kde.org/show_bug.cgi?id=370650

--- Comment #5 from Jeff Hodd  ---
(In reply to Maarten ter Huurne from comment #4)
> (In reply to Jeff Hodd from comment #3)
> > Please let me know if this should be filed as a new bug for korgac vs. kmix.
> > It's certainly very possible that the issue is related to session management
> > and is not necessarily application-specific.
> 
> Looking at the backtraces, I think it's a different issue: the cause of the
> crash is different (abort vs segfault) and the functions on the stack are
> different as well (event vs disconnect). So please open a separate bug
> report for it.

Thanks. Now submitted as bug 370883.

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[kmix] [Bug 370650] Crash on session restore

[Maarten ter Huurne via KDE Bugzilla]

https://bugs.kde.org/show_bug.cgi?id=370650

--- Comment #4 from Maarten ter Huurne  ---
(In reply to Jeff Hodd from comment #3)
> Please let me know if this should be filed as a new bug for korgac vs. kmix.
> It's certainly very possible that the issue is related to session management
> and is not necessarily application-specific.

Looking at the backtraces, I think it's a different issue: the cause of the
crash is different (abort vs segfault) and the functions on the stack are
different as well (event vs disconnect). So please open a separate bug report
for it.

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[kmix] [Bug 370650] Crash on session restore

[Jeff Hodd via KDE Bugzilla]

https://bugs.kde.org/show_bug.cgi?id=370650

--- Comment #3 from Jeff Hodd  ---
Please let me know if this should be filed as a new bug for korgac vs. kmix.
It's certainly very possible that the issue is related to session management
and is not necessarily application-specific.

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[kmix] [Bug 370650] Crash on session restore

[Jeff Hodd via KDE Bugzilla]

https://bugs.kde.org/show_bug.cgi?id=370650

--- Comment #2 from Jeff Hodd  ---
Sorry about the formatting of the duplicate bug line - I can't seem to edit it.
It should read:

Possible duplicates by query: bug 369325

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[kmix] [Bug 370650] Crash on session restore

[Jeff Hodd via KDE Bugzilla]

https://bugs.kde.org/show_bug.cgi?id=370650

Jeff Hodd  changed:

   What|Removed |Added

 CC||jgh...@gmail.com

--- Comment #1 from Jeff Hodd  ---
Application: korgac (16.08.2)

Qt Version: 5.7.0
Frameworks Version: 5.27.0
Operating System: Linux 4.7.6-1-ARCH x86_64 GNU/Linux
Distribution: "Arch Linux (x86_64)"

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

Logging in

The crash can be reproduced every time.

-- Backtrace:
Application: korgac (korgac), signal: Segmentation fault
Using host libthread_db library "/usr/lib/libthread_db.so.1".
[Current thread is 1 (Thread 0xa945a7c0 (LWP 919))]

Thread 5 (Thread 0xa3c4db40 (LWP 1099)):
#0  0xb7716d41 in __kernel_vsyscall ()
#1  0xb3750c8b in pthread_cond_wait@@GLIBC_2.3.2 () from
/usr/lib/libpthread.so.0
#2  0xa77a7a4a in ?? () from /usr/lib/xorg/modules/dri/swrast_dri.so
#3  0xb374b301 in start_thread () from /usr/lib/libpthread.so.0
#4  0xb4f720ae in clone () from /usr/lib/libc.so.6

Thread 4 (Thread 0xa444eb40 (LWP 1098)):
#0  0xb7716d41 in __kernel_vsyscall ()
#1  0xb3750c8b in pthread_cond_wait@@GLIBC_2.3.2 () from
/usr/lib/libpthread.so.0
#2  0xa77a7a4a in ?? () from /usr/lib/xorg/modules/dri/swrast_dri.so
#3  0xb374b301 in start_thread () from /usr/lib/libpthread.so.0
#4  0xb4f720ae in clone () from /usr/lib/libc.so.6

Thread 3 (Thread 0xa8667b40 (LWP 1087)):
[KCrash Handler]
#7  0xb5475e45 in QObject::disconnect(QObject const*, char const*, QObject
const*, char const*) () from /usr/lib/libQt5Core.so.5
#8  0xb56e685d in ?? () from /usr/lib/libQt5DBus.so.5
#9  0xb56d3195 in ?? () from /usr/lib/libQt5DBus.so.5
#10 0xb52736fa in ?? () from /usr/lib/libQt5Core.so.5
#11 0xb374b301 in start_thread () from /usr/lib/libpthread.so.0
#12 0xb4f720ae in clone () from /usr/lib/libc.so.6

Thread 2 (Thread 0xa90e8b40 (LWP 1061)):
#0  0xb7716d41 in __kernel_vsyscall ()
#1  0xb4f6815f in poll () from /usr/lib/libc.so.6
#2  0xb387094d in ?? () from /usr/lib/libxcb.so.1
#3  0xb3872cc3 in xcb_wait_for_event () from /usr/lib/libxcb.so.1
#4  0xa91761e3 in ?? () from /usr/lib/libQt5XcbQpa.so.5
#5  0xb52736fa in ?? () from /usr/lib/libQt5Core.so.5
#6  0xb374b301 in start_thread () from /usr/lib/libpthread.so.0
#7  0xb4f720ae in clone () from /usr/lib/libc.so.6

Thread 1 (Thread 0xa945a7c0 (LWP 919)):
#0  0xb7716d41 in __kernel_vsyscall ()
#1  0xb3750c8b in pthread_cond_wait@@GLIBC_2.3.2 () from
/usr/lib/libpthread.so.0
#2  0xb52745a3 in QWaitCondition::wait(QMutex*, unsigned long) () from
/usr/lib/libQt5Core.so.5
#3  0xb5273242 in QThread::wait(unsigned long) () from /usr/lib/libQt5Core.so.5
#4  0xb56d2ebf in ?? () from /usr/lib/libQt5DBus.so.5
#5  0xb56d2f78 in ?? () from /usr/lib/libQt5DBus.so.5
#6  0xb4eb78cb in __run_exit_handlers () from /usr/lib/libc.so.6
#7  0xb4eb7931 in exit () from /usr/lib/libc.so.6
#8  0xb6757937 in
KDBusService::KDBusService(QFlags, QObject*) ()
from /usr/lib/libKF5DBusAddons.so.5
#9  0x0805572e in ?? ()
#10 0xb4ea1196 in __libc_start_main () from /usr/lib/libc.so.6
#11 0x080559d3 in _start ()


Thus far, the only workarounds I've been able to find for this issue are 1) to
turn off session management (SystemSettings->Startup and Shutdown->Desktop
Session->On Login->Start with an empty session) OR 2) (SystemSettings->Startup
and Shutdown->Desktop Session->On Login->Restore previous session) and add
korgac to "Applications to be excluded from sessions".

Possible duplicates by query: https://bugs.kde.org/show_bug.cgi?id=369325;>bug 369325

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