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Bug#666889: Problem with this transition, leading to gnome-shell segfault on login



On 05.05.2012 06:04, Josh Triplett wrote:
> Something seems to have gone wrong with this transition.  I currently
> have a set of packages installed that satisfy all dependency/conflict
> relationships, but that causes gnome-shell to segfault on start:
> 

> [HOLD, DEPENDENCIES] gir1.2-clutter-1.0:amd64
> [HOLD, DEPENDENCIES] libclutter-1.0-0:amd64
> [HOLD, DEPENDENCIES] libclutter-gtk-1.0-0:amd64
> [HOLD, DEPENDENCIES] libmutter0:amd64
> [HOLD, DEPENDENCIES] mutter-common:amd64
> [INSTALL, DEPENDENCIES] libcogl9:amd64

> [UPGRADE] libcogl-pango0:amd64 1.8.2-1 -> 1.10.2-2

> [UPGRADE] gir1.2-cogl-1.0:amd64 1.8.2-1 -> 1.10.2-2
> [UPGRADE] gir1.2-coglpango-1.0:amd64 1.8.2-1 -> 1.10.2-2
> [UPGRADE] gir1.2-gtkclutter-1.0:amd64 1.0.4-1 -> 1.2.0-2
> 
> Note that I didn't upgrade the clutter packages because it Breaks:
> libcogl5, and umpteen other packages depend on libcogl5.  Thus, I expect
> that many other people may end up with the same set of installed
> packages, and have their session completely fail to start.

Right, the problem is, that you've made a partial upgrade and
gnome-shell hasn't been recompiled yet.
As a result gnome-shell tries to load both libcogl9 (via
libcogl-pango0_1.10.2-2 and  gir1.2-cogl*_1.10.2-2) and libcogl5, which
results in the crash.

I see three different solutions, which all suck in their own way:
a/ Make gir1.2-coglpango-1.0, gir1.2-cogl-1.0 and libcogl-pango0 break
libcogl5
b/ Make libcogl9 break libcogl5
c/ Make libcogl9 break libclutter-1.0-0 << 1.10


-- 
Why is it that all of the instruments seeking intelligent life in the
universe are pointed away from Earth?

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