Re: 2.6.12-rc2-mm3 regression - certain applications get SIGSEGV but are fine with 2.6.12-rc2-mm2

[Alexander Nyberg <alexn@dsv.su.se>]

tis 2005-04-19 klockan 11:33 +0200 skrev Jesper Juhl:
> Everything is fine with 2.6.12-rc2, 2.6.12-rc2-mm1, 2.6.12-rc2-mm2 & 
> earlier kernels as well, but 2.6.12-rc2-mm3 seems to have a problem.
> I don't know what's causing this, all I can do at the moment is describe 
> the symptoms.
> 
> Certain applications (krootimage and ksplash from KDE 3.4 are 100% 
> reproducible test cases) that used to run fine have started crashing with 
> SIGSEGV on 2.6.12-rc2-mm3. I see nothing suspicious in dmesg.
> I'm including dmesg output as well as strace output from krootimage and 
> ksplash below.
> If someone could give me a hint as to what the cause of this could be or 
> what to try in order to track it down I'd appreciate it.
> This is 100% reproducible.

Try backing out
http://www.kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.12-rc2/2.6.12-rc2-mm3/broken-out/sched-unlocked-context-switches.patch

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