Re: [PATCH]x86-x86_64 flush cache for CPU hotplug

[Ashok Raj]

On Fri, Jun 10, 2005 at 11:30:08AM +0800, Shaohua Li wrote:
> Hi,
> We should flush cache at CPU hotplug. An error has been observed data is
> corrupted after CPU hotplug in CPUs with bigger cache.
> I guess IA64 requires similar change, Ashok?

Yes, we need that for IA64 as well. i did put that in my notes tbd, but 
didnt turn around doing it yet. 

Think we also need to define the same for asm-ia64/acpi.h FLUSH_CPU_CACHE
i will try updating both in next.

If you have a targetted test that causes the corruption that would be great
so we can add to our stress test senarios.

Cheers,
ashok
> 
> Thanks,
> Shaohua
> 
> Signed-off-by: Shaohua.li<shaohua.li@xxxxxxxxx>
> ---
> 
>  linux-2.6.12-rc6-mm1-root/arch/i386/kernel/process.c   |    1 +
>  linux-2.6.12-rc6-mm1-root/arch/x86_64/kernel/process.c |    1 +
>  2 files changed, 2 insertions(+)
> 
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