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    SubjectRe: perf hw in kexeced kernel broken in tip
    Don Zickus <dzickus@redhat.com> writes:

    > On Wed, Dec 08, 2010 at 03:59:16PM +0100, Peter Zijlstra wrote:
    >> On Wed, 2010-12-08 at 15:20 +0100, Peter Zijlstra wrote:
    >>
    >> > > I wonder if you should reverse these checks. If the bios has the perf
    >> > > counter enabled, there might be a high chance that it fails the first
    >> > > check and never gets to the actually bios checks.
    >> >
    >> > Ah, good point.
    >>
    >> Something like so..
    >
    > This seems to work correctly on my Nehalem and broken bios machines during
    > boot and kexec. As expected it fails during kdump. My p4 box failed
    > during kexec for some reason. But p4 has other issues.

    Does the kdump kernel still boot?

    It looks like it should I just want to double check.

    Eric


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