[Dapper]Stochastically fails to shutdown properly

[Martin Ammermüller]

With certain gnome-panel-applets combinations, gnome-panel fails to shut down properly on session logout. Found applets-combination:

- Ubuntu default combination
- mixer_applet2 and battstat-applet-2. This occurs only if mixer_applet2 resides left from battstat-applet-2 in gnome-panel. Additional requirements for this to occur: mixer_applet2 must be added through the "Add to panel..."-dialogue. Moving an existing mixer_applet2 from right of battstat-applet2 to left of battstat-applet2 could not be confirmed to produce the criticized behaviour.

[Sitsofe Wheeler (sitsofe)]

This bug might be related to Bug #33263 and Bug #33667

[Sitsofe Wheeler (sitsofe)]

This happend again after a recent round of updates around two days ago. The cause is definitely mixer_applet2 I shall attach various straces, lists of processes and backtraces...

[Sitsofe Wheeler (sitsofe)]

ps uxw of proccesses still running during GNOME logout hang

[Sitsofe Wheeler (sitsofe)]

gdb backtrace of esd during GNOME logout hang

[Sitsofe Wheeler (sitsofe)]

gdb backtrace of mixer_applet2 during GNOME logout hang

[Sitsofe Wheeler (sitsofe)]

strace of mixer_applet2 during GNOME logout hang

[Sitsofe Wheeler (sitsofe)]

gdb backtrace of gnome-panel during GNOME logout hang

[Sebastien Bacher (seb128)]

How are you sure it's due to the mixer?

Vincent, Ccing you one the bug if case you are interested, that's panel issue on session logout due to some applet

[Tormod Volden (tormodvolden)]

I've also experienced that the logout is hanging (only the background image is left). Switching to a console and killing the mixer made the logout continue.

[Sitsofe Wheeler (sitsofe)]

"How are you sure it's due to the mixer?"

Killing the mixer makes the logout continue. I believe killing esd also makes the logout continue but I assume this is because it wakes up the mixer.

[Sebastian Dröge (slomo)]

I can confirm this... killing the mixer applet leads to a normal logout

[Sebastien Bacher (seb128)]

might be caused by bug #34519 which is a mixer_applet crasher

[Sebastien Bacher (seb128)]

The mixer issue is fixed with that upload:

 gnome-applets (2.14.0-0ubuntu5) dapper; urgency=low
 .
   * debian/patches/07_mixer_crash_on_logout_fix.patch:
     - upstream patch, fix the mixer crasher on logout (Ubuntu: #33699, #34519)

Could you try if your issue is fixed after updating the package and starting a new session so the new code is running?

[Scott Garman (sgarman)]

On my system, gnome-applets (2.14.0-0ubuntu5) fixes this problem. Thank you very much!

[Sebastien Bacher (seb128)]

Other people who had that issue, is it fixed for you?

[Sebastian Dröge (slomo)]

yes... it's fixed for me too

[Martin Ammermüller (martin-ammermueller)]

yes.

[Dennis Kaarsemaker (dennis)]

3 confirmations sounds good enough to close. If it still happens to
anyone: please reopen.

 status FixReleased