Fwd: gnome-shell segfaults in @updates-testing/F18

[Ozan Çağlayan]

Hi,

Yesterday I did an update of my x86_64 F18 through updates-testing
repository. Upon reboot, I got a blue background after gdm startup
saying that things are going wrong, contact an administrator.

In dmesg, there is segfaults for gnome-shell:
gnome-shell[1229]: segfault at 88 ip 000000383f63f134 sp
00007fff5866c750 error 4 in libcogl.so.11.0.3[383f600000+8e000]
I downgraded gnome-shell, cairo, xorg-* related updates but nothing
fixed the situation.

I'm using nouveau drm driver but today it happened also on my laptop with i915.

I now distro-sync'ed to updates repository after disabling
updates-testing and everything is OK.

i googled but found nothing so this is really interesting that nobody
encountered this.

Someone in fedora-devel told that reinstalling shared-mime-info fixes
the problem but we have to find the real cause as the issue will be
hitting people once the updates will be merged to stable repository.

One more thing is that upon updating, the logged-in gnome3 desktop
starts to show weird symptoms. icons disappear, evince can't open pdf
files, gtk theme is rendered wrongly, etc.

Attached is the yum transaction that causes the problem.

--
Ozan Çağlayan
Research Assistant
Galatasaray University - Computer Engineering Dept.
http://www.ozancaglayan.com

gnome-shell segfaults in @updates-testing/F18

[Kamil Paral]

>  Hi,
>  
>  Yesterday I did an update of my x86_64 F18 through updates-testing
>  repository. Upon reboot, I got a blue background after gdm startup
>  saying that things are going wrong, contact an administrator.
>  
>  In dmesg, there is segfaults for gnome-shell:
>  gnome-shell[1229]: segfault at 88 ip 000000383f63f134 sp
>  00007fff5866c750 error 4 in libcogl.so.11.0.3[383f600000+8e000]
>  I downgraded gnome-shell, cairo, xorg-* related updates but nothing
>  fixed the situation. 
Hello Ozan,

libcogl is part of the cogl package:

$ locate libcogl
/usr/lib64/libcogl-pango.so.0
/usr/lib64/libcogl-pango.so.0.0.0
/usr/lib64/libcogl.so.11
/usr/lib64/libcogl.so.11.0.3

$ rpm -qf /usr/lib64/libcogl.so.11.0.3
cogl-1.12.2-1.fc18.x86_64

Please try upgrading and downgrading that package and if you can reproduce reliably,
please append this information to bugzilla (I assume you used ABRT to report it already).

Thanks.

gnome-shell segfaults in @updates-testing/F18

[Ozan Çağlayan]

>  Hello Ozan,
>
>  libcogl is part of the cogl package:
>
>  $ locate libcogl
>  /usr/lib64/libcogl-pango.so.0
>  /usr/lib64/libcogl-pango.so.0.0.0
>  /usr/lib64/libcogl.so.11
>  /usr/lib64/libcogl.so.11.0.3
>
>  $ rpm -qf /usr/lib64/libcogl.so.11.0.3
>  cogl-1.12.2-1.fc18.x86_64 
I think the problem is not related to cogl as there isn't an update
for it in the repository for a while. The segfault seem to be a
side-effect of another issue since a user reported that the issue is
fixed by reinstalling shared-mime-info.

I'll look into this and further report.

--
Ozan Çağlayan
Research Assistant
Galatasaray University - Computer Engineering Dept.
http://www.ozancaglayan.com

gnome-shell segfaults in @updates-testing/F18

[Ozan Çağlayan]

Okay,

So this is really related to the shared-mime-info update from 1.0.x to
1.1. Once you downgrade it or reinstall it the issue disappears and
you can't reproduce this.

gnome-shell segfaults in @updates-testing/F18

[Adam Williamson]

On 25/02/13 09:35 AM, Ozan Çağlayan wrote:
>  Okay,
>
>  So this is really related to the shared-mime-info update from 1.0.x to
>  1.1. Once you downgrade it or reinstall it the issue disappears and
>  you can't reproduce this. 
Well, if a *reinstall* fixes it, that rather suggests things are more 
complicated; it implies there isn't actually a problem in the 
shared-mime-info code, after all.

I'd hazard a guess that there's a bad command in the scripts for some 
other package, and reinstalling shared-mime-info triggers *its* scripts, 
which fix up the error.

It seems shared-mime-info has a %post script which does this:

/usr/bin/update-mime-database /usr/share/mime &> /dev/null

does simply running that (as root) also resolve the problem?
-- 
Adam Williamson
Fedora QA Community Monkey
IRC: adamw | Twitter: AdamW_Fedora | identi.ca: adamwfedora
http://www.happyassassin.net

gnome-shell segfaults in @updates-testing/F18

[Ozan Çağlayan]

>  It seems shared-mime-info has a %post script which does this:
>
>  /usr/bin/update-mime-database /usr/share/mime &> /dev/null
>
>  does simply running that (as root) also resolve the problem? 
Well I can't reproduce this on my laptop but I'll try to enable
updates-testing and fetch the updates to reproduce this on my desktop.

gnome-shell segfaults in @updates-testing/F18

[Ozan Çağlayan]

>  Well I can't reproduce this on my laptop but I'll try to
> enable
>  updates-testing and fetch the updates to reproduce this on my desktop. 
This can't be reproduced even you do the same update hunk that caused
the issue once shared-mime-info is downgraded.
Maybe someone can install a F18 VM and update from updates-testing to
see if it happens or not.

But I hope that this won't hurt people once the updates from
updates-testing got merged to the updates repository.

Regards,


-- 
Ozan Çağlayan
Research Assistant
Galatasaray University - Computer Engineering Dept.
http://www.ozancaglayan.com