Bug#782075: gnome-tweak-tool: Crashes Gnome when reducing Number of Workspaces

[jre]

Control: tags -1 - moreinfo

Hi,

[ I removed the "moreinfo" tag for now, although I assume the info
  that I provide is not sufficient yet. Still, I guess this matches
  the correct workflow. ]


On 04/10/2015 11:47 AM, Andreas Henriksson wrote:
> Thanks for your bug report, unfortunately it's not reproducible so
> you will have to provide more information or it will not be able to
> be investigated. Please provide session logs, a backtrace from the
> crashing process, etc.

Thanks for your answer. Strange, I could reproduce it on a freshly
installed Desktop PC and a laptop. The only common thing I can think
of is the Intel graphics hardware and arch amd64. Uneducated and
maybe biased guess ;)



For now I only found and attached (parts of) /var/log/user.log:

18:01:09: I reduce the number of workspaces by one (Desktop reloads
          (?), but no crash yet).
18:01:47: I reduce it by another one --> crash.

The crash seems to always happen after the 2nd reduction (increasing
works fine).

--- snip ---
Apr 12 18:01:47 hope gnome-tweak-tool.desktop[1911]: (gnome-tweak-tool:1911): Gtk-WARNING **: Failed to set text from markup due to error parsing markup: Error on line 1 char 190: Element 'span' was closed, but the currently open element is 'alt'
Apr 12 18:01:58 hope gnome-session[1257]: **
Apr 12 18:01:58 hope gnome-session[1257]: mutter:ERROR:core/screen.c:1250:update_num_workspaces: assertion failed: (w->windows == NULL)
Apr 12 18:01:58 hope gnome-session[1257]: x-session-manager[1257]: WARNING: Application 'gnome-shell.desktop' killed by signal 6
Apr 12 18:01:58 hope gnome-session[1257]: x-session-manager[1257]: WARNING: App 'gnome-shell.desktop' respawning too quickly
--- snap ---



I'm a bit clueless which information to provide, e.g. which process
to backtrace, "etc.". I found no logs in ~/gnome*. Instructions or
a reference to an instructional website are welcome.
I'd be happy to provide more information, currently hanging out on
#debian-gnome as jere21.

Greets
jre
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