Re: [patch, 2.6.9-rc4-mm1] fix oops in sched_setscheduler

[Andrew Morton]

Ingo Molnar <mingo@xxxxxxx> wrote:
>
> 
> * Mateusz.Blaszczyk@xxxxxxx <Mateusz.Blaszczyk@xxxxxxx> wrote:
> 
> > Running cdrecord caused oops in sched_setscheduler syscall (i think)
> > so i tested with my little setp.c program that follows. It seems that
> > it always oops - no matter what policy I request. It runs ok on
> > 2.6.9-rc2-mm1, same config. Rc3 not tested. I run setp. 3 times. The
> > first I decoded using ksymoops. My .config follows at the end.
> 
> the crash happens if 1) someone doesnt have profiling enabled 2) uses an
> UP kernel and 3) does setscheduler. The patch below fixes 3 problems:
> finishes and fixes the consolidation and fixes the profile=schedule
> feature. Against 2.6.9-rc4-mm1. Tested.

I ended up dropping
ftp://ftp.kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.9-rc4/2.6.9-rc4-mm1/broken-out/optimize-profile-path-slightly.patch
so I guess this problem isn't there any more?

> also it seems that some serious mismerge happened of the
> profile=schedule feature. Wli or akpm merge damage?

If you say so - I'd need more details to comment.

> in the next mail i will send a patch against 2.6.9-rc4 too (which
> luckily doesnt have the crash bug, but has the feature mismerge).

OK.  So it sounds like no additional patch will be needed for -mm?
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