Re: [patch 10/39] [PATCH] i386/x86-64: Dont IPI to offline cpus on shutdown

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Chris Wright <[email protected]> writes:

> * Andi Kleen ([email protected]) wrote:
>> On Monday 27 February 2006 23:32, Chris Wright wrote:
>> > -stable review patch.  If anyone has any objections, please let us know.
>> > ------------------
>> > 
>> > So why are we calling smp_send_stop from machine_halt?
>> 
>> I don't think that one is really suitable for stable since it's
>> a relative obscure problem and the fix is not fully clear. Also it might
>> have side effects. Shouldn't be merged.
>
> This was sent in by both Andrew and Ashok, and is upstream (although Eric
> notes there's more to the comprehensive solution).  It allegedly solves:
>
> http://bugzilla.kernel.org/show_bug.cgi?id=6077
>
> Although the reporter seems to have gone silent.  Unless there's some
> compelling evidence otherwise, I'm happy to drop it.

The comprehensive fix for 2.6.15.x is to remove -p from /sbin/halt
if your machine has this problem.  I have just updated the bugzilla
entry so we can remember this.

There are no security implications to this, either since this is a crash
when attempting to power off the machine.

Eric

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