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SubjectRe: kernel 2.6.39 (user mode linux) crashes (2.6.38 works fine)
From
2011/5/21 Toralf Förster <toralf.foerster@gmx.de>:
> Bisecting gave :
>
>
> git bisect badd123375425d7df4b6081a631fc1203fceafa59b2 is the first bad commit
> commit d123375425d7df4b6081a631fc1203fceafa59b2
> Author: Thomas Gleixner <tglx@linutronix.de>
> Date:   Wed Jan 26 21:32:01 2011 +0100
>
>    rwsem: Remove redundant asmregparm annotation
>
>    Peter Zijlstra pointed out, that the only user of asmregparm (x86) is
>    compiling the kernel already with -mregparm=3. So the annotation of
>    the rwsem functions is redundant. Remove it.

Ok, this bisect makes much more sense.

Thomas, Peter, please revert d123375425d7df4b6081a631fc1203fceafa59b2.
We cannot compile UML with -mregparm=3 it would cause a lot of trouble.
It would break 32bit UML on 64bit and also on older 32bit systems like RHEL5.

--
Thanks,
//richard
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