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    SubjectRe: [PATCH] kdump: Fix crash_kexec - smp_send_stop race in panic
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    On Thu, Nov 10, 2011 at 8:04 AM, Andrew Morton
    <akpm@linux-foundation.org> wrote:
    >
    > Ho hum, I guess we stick with the original patch.  It *should* work, as
    > long as all archtectures are doing the expected thing.  But in this
    > situation it is bad of us to just hope that the architectures are doing
    > this.  We should go and find out, rather than waiting for bug reports
    > to come in.  Especially because in this case, bugs will take a very
    > long time indeed to even be noticed.
    >
    > One way to resolve this would be to ask the various arch maintainers!

    At least we can add the spin_lock just for x86 and s390, and leave
    a big comment saying we are waiting for the other arch to be fixed...

    Thanks.
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