Re: 2.6.39-rc4+: oom-killer busy killing tasks

[Christian Kujau]

On Fri, 29 Apr 2011 at 09:37, Dave Chinner wrote:
> Did you read the email that pointed to CONFIG_TINY_RCU as the
> ptotential source of the problem? Can you change to CONFIG_TREE_RCU
> and see if the problem goes away?

For that I had to select SMP on this UP-PowerPC G4 machine. But compiling 
-rc5 (as the bug is strill present in -rc5) fails with:

/usr/local/src/linux-2.6-git/arch/powerpc/kernel/crash.c: In function 
âdefault_machine_crash_shutdownâ:
/usr/local/src/linux-2.6-git/arch/powerpc/kernel/crash.c:349: error: 
implicit declaration of function âcrash_kexec_wait_realmodeâ
make[2]: *** [arch/powerpc/kernel/crash.o] Error 1
make[1]: *** [arch/powerpc/kernel] Error 2
make: *** [sub-make] Error 2

Maybe I'll just disable kexec and see if TREE_RCU helps.

Meanwhile, I gave up on the git bisect, as I can hardly boot inbetween 
commits: http://nerdbynature.de/bits/2.6.39-rc4/oom/git-bisect-log.txt

Thanks,
Christian.
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