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

Ashok Raj
2005-06-10T16:39:38Z

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?
>

Good catch. Yes, we need it for IA64 as well. Strange i had put it in my
TBD, and out of 2 items, this is one of them. I need to muck something for
mca apart from this pending flush.

I think i will update the ACPI_FLUSH_CPU_CACHE as well when i push this change.

>
> Signed-off-by: Shaohua.li<shaohua.li@intel.com>
> ---
>
> 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(+)