Messages in this thread | | | From | (Eric W. Biederman) | Date | Wed, 08 Dec 2010 15:20:37 -0800 | Subject | Re: perf hw in kexeced kernel broken in tip |
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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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