From: Ashok Raj <ashok.raj@intel.com>
To: Shaohua Li <shaohua.li@intel.com>
Cc: lkml <linux-kernel@vger.kernel.org>, akpm <akpm@osdl.org>,
Ashok Raj <ashok.raj@intel.com>,
Zwane Mwaikambo <zwane@linuxpower.ca>, ak <ak@muc.de>
Subject: Re: [PATCH]x86-x86_64 flush cache for CPU hotplug
Date: Fri, 10 Jun 2005 09:34:46 -0700 [thread overview]
Message-ID: <20050610093446.A25573@unix-os.sc.intel.com> (raw)
In-Reply-To: <1118374208.7510.6.camel@linux-hp.sh.intel.com>; from shaohua.li@intel.com on Fri, Jun 10, 2005 at 11:30:08AM +0800
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(+)
next prev parent reply other threads:[~2005-06-10 16:39 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-06-10 3:30 [PATCH]x86-x86_64 flush cache for CPU hotplug Shaohua Li
2005-06-10 16:30 ` Ashok Raj
2005-06-10 16:34 ` Ashok Raj [this message]
2005-06-10 17:21 ` Andi Kleen
2005-06-13 1:13 ` Shaohua Li
2005-06-10 19:11 ` Zwane Mwaikambo
2005-06-13 1:18 ` Shaohua Li
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