FS#37282 - [synapse] seg fault

Attached to Project: Community Packages
Opened by simon Claessens (gagalago) - Thursday, 10 October 2013, 21:17 GMT
Last edited by Balló György (City-busz) - Tuesday, 10 December 2013, 04:35 GMT
Task Type Bug Report
Category Packages
Status Closed
Assigned To Felix Yan (felixonmars)
Architecture x86_64
Severity High
Priority Normal
Reported Version
Due in Version Undecided
Due Date Undecided
Percent Complete 100%
Votes 0
Private No

Details

Description:
When I launch synapse, I have a segmentation fault.

I have try to recompile the package but I have this error : error: `Timeout' is an ambiguous reference between `GLib.Timeout' and `Gtk.Timeout'


Additional info:
* package version of currently installed packages
synapse : 0.2.10-5
gtk3 : 3.10.0-2
glib2 : 2.38.0-1
glibc : 2.18-5


* See attachment for log of these two problems
   synapse-seg_fault.log (0.5 KiB)
   synapse-compilation.log (64.2 KiB)
This task depends upon

Closed by  Balló György (City-busz)
Tuesday, 10 December 2013, 04:35 GMT
Reason for closing:  Fixed
Additional comments about closing:  glib2 2.38.2-1
Comment by James (JRMoore) - Monday, 14 October 2013, 22:32 GMT
I don't know about the segmentation fault, works fine here.

But if you want to build it yourself you the attached patch and PKGBUILD should allow you to.
   concrete-gtk-timeout.patch (2.5 KiB)
   PKGBUILD (1.7 KiB)
Comment by Balló György (City-busz) - Tuesday, 15 October 2013, 01:06 GMT
I confirm the segfault. It happens after some seconds on every launch. I attached an incomplete backtrace.
   synapse_backtrace.txt (1 KiB)
Comment by Felix Yan (felixonmars) - Tuesday, 15 October 2013, 01:37 GMT
@City-busz
Did the patch attached by JRMoore works for you? I didn't get the segfault myself, either.
Comment by simon Claessens (gagalago) - Tuesday, 15 October 2013, 06:18 GMT
with the new pkgbuild, I can now compile synapse but I still have a segfault.
Comment by James (JRMoore) - Wednesday, 16 October 2013, 19:53 GMT
I've just installed another machine with Arch using stock packages, no segmentation faults there either (in my system I had several important packages recompiled).

What desktop environment are you using? Here both machines have Xfce. I attached a list of my currently installed packages and versions.
   pacmanQ.txt (13.3 KiB)
   pacmanQe.txt (3.7 KiB)
   pacmanQm.txt (0.3 KiB)
Comment by simon Claessens (gagalago) - Wednesday, 16 October 2013, 20:58 GMT
I use gnome. What kind of packages can give this kind of problem?
   pacmanQ.txt (24.2 KiB)
Comment by Alexander De Sousa (Aphanic) - Saturday, 19 October 2013, 17:19 GMT
Hi, the offending package seems to be gnome-weather. I was able to replicate the segmentation fault here in a virtual environment having your packages installed, all but the ones from outside official repos anyway. Works fine in a clean Gnome but stopped working after installing some extras (gnome-extra), so I pinned it down to that package.

After bisecting Synapse's sources and I think the problem may be within GIO itself in the way it parses .desktop files (either that or the desktop file of gnome-weather is malformed, but it doesn't look wrong to me). I wrote a small test program in C that leads to the same error, so I think I'll fill in a bug report in their bug tracker to notify the devs.

In the meantime you can either uninstall gnome-weather which should let you use Synapse as usual, or apply the patch I attach (plus the one from James or it won't compile) to exclude its desktop file from being accessed by Synapse.

EDIT: Upstream bug report: https://bugzilla.gnome.org/show_bug.cgi?id=710521
   ignore-gnome-weather.patch (0.6 KiB)
   test.c (1.1 KiB)
Comment by Alexander De Sousa (Aphanic) - Tuesday, 22 October 2013, 16:41 GMT
The bug report is already resolved and its fix was committed to the 2.38 branch of GLib a couple of hours ago, so it should be fixed in its next point release.

So another resolution to this bug report would be to apply [1] to the glib2 package and recompile it, or ask for it to be applied in the official package while the next release of GLib is not out.

[1]: https://bug709326.bugzilla-attachments.gnome.org/attachment.cgi?id=256390
Comment by Balló György (City-busz) - Tuesday, 10 December 2013, 04:35 GMT
The linked patch has been applied in glib2 version 2.38.2, which is in the [core] repository, so I'm closing this bug now.

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