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    SubjectRe: kernel 2.6.39 (user mode linux) crashes (2.6.38 works fine)
    2011/5/21 Toralf Förster <>:
    > Bisecting gave :
    > git bisect badd123375425d7df4b6081a631fc1203fceafa59b2 is the first bad commit
    > commit d123375425d7df4b6081a631fc1203fceafa59b2
    > Author: Thomas Gleixner <>
    > 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.

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