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Bug#454266: upgrade to 2.7 fails, leaving system unusable



On Tue, Dec 04, 2007 at 12:57:14PM +0000, Marcus Better wrote:
> Pierre Habouzit wrote:
> >  Could you touch /etc/ld.so.nohwcap and see if it looks like that fixes
> >your system ?
> 
> Yes, that fixes it!

  okay so there is an issue with the optimized version of the library.
touching /etc/ld.so.nohwcap tells the linker to avoid the use of
optimized libraries.

> Attempting the upgrade again makes the problem re-appear, and the upgrade 
> fails with the following messages:
> 
> Setting up libc6 (2.7-3) ...
> dpkg[3484]: segfault at 0000 eip b7d71f6d esp bfb11cfc error 4
> /var/lib/dpkg/info/libc6.postinst: line 357: 3484 Segmentation fault dpkg 
> --compare-versions $preversion lt 2.3.5-1
> 
> and two more segfaults in iconvconfig and update-rc.d.

  hmmm it looks a lot like #397020 that I thought was changed upstream,
so maybe not.

On Tue, Dec 04, 2007 at 12:58:32PM +0000, Marcus Better wrote:
> Aurelien Jarno wrote:
> >That looks ok. Which kernel are you using?
> 
> 2.6.24-rc3 when it broke, but using 2.6.23 didn't help. Both are 
> self-compiled.

  are you using pax execshield or anything like that ? Given that you
maintain it I suppose you do. If yes, could you please try with a stock
debian kernel ? If it's because execshield then we'll downgrade the bug
to important so that the libc can migrate, and as soon as it migrated
we'll rework the patch used for #397020 and reinclude it.

Cheers,

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