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SubjectRe: perf hw in kexeced kernel broken in tip
On 12/08/2010 11:06 AM, Peter Zijlstra wrote:
>> then still can use perf etc after we kexec from RHEL or SLES kernel to
>> later kernel ( from 2.6.37)
>
> I'm not sure why people would do that, but yeah I guess we can do
> something like that.

more problem:
system with linuxbios and have kernel in flash as bootloader. they may kexec to final production kernel.

and they may need to update that embedded kernel to shutdown perf....

Yinghai


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