From: Andi Kleen <andi@firstfloor.org>
To: Huang Ying <ying.huang@intel.com>
Cc: Len Brown <lenb@kernel.org>,
linux-kernel@vger.kernel.org, Andi Kleen <andi@firstfloor.org>,
linux-acpi@vger.kernel.org
Subject: Re: [PATCH 5/5] ACPI, APEI, Fix ERST MOVE_DATA instruction implementation
Date: Tue, 21 Sep 2010 14:47:18 +0200 [thread overview]
Message-ID: <20100921124718.GE18991@one.firstfloor.org> (raw)
In-Reply-To: <1284865235-29920-6-git-send-email-ying.huang@intel.com>
On Sun, Sep 19, 2010 at 11:00:35AM +0800, Huang Ying wrote:
> diff --git a/drivers/acpi/apei/erst.c b/drivers/acpi/apei/erst.c
> index 40b01c3..a103963 100644
> --- a/drivers/acpi/apei/erst.c
> +++ b/drivers/acpi/apei/erst.c
> @@ -266,13 +266,27 @@ static int erst_exec_move_data(struct apei_exec_context *ctx,
> {
> int rc;
> u64 offset;
> + void *src, *dst;
> +
> + /* ioremap does not work in interrupt context */
> + if (in_interrupt())
> + return -EBUSY;
That breaks serialization of machine checks no? If the BIOS uses MOVE_DATA
How about using kmap_atomic instead?
-Andi
--
ak@linux.intel.com -- Speaking for myself only.
next prev parent reply other threads:[~2010-09-21 12:47 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-09-19 3:00 [PATCH 0/5] ACPI, APEI, BUG fixes for 2.6.36 Huang Ying
2010-09-19 3:00 ` [PATCH 1/5] ACPI, APEI, Fix APEI related table size checking Huang Ying
2010-09-21 12:39 ` Andi Kleen
2010-09-26 5:30 ` Huang Ying
2010-09-19 3:00 ` [PATCH 2/5] ACPI, APEI, Fix acpi_pre_map() return value Huang Ying
2010-09-21 12:47 ` Andi Kleen
2010-09-19 3:00 ` [PATCH 3/5] ACPI, APEI, HEST Fix the unsuitable usage of platform_data Huang Ying
2010-09-21 12:43 ` Andi Kleen
2010-09-22 1:05 ` Jin Dongming
2010-09-23 9:06 ` huang ying
2010-09-23 9:06 ` huang ying
2010-09-19 3:00 ` [PATCH 4/5] ACPI, APEI, Fix error path for memory allocation Huang Ying
2010-09-21 12:45 ` Andi Kleen
2010-09-23 8:53 ` huang ying
2010-09-19 3:00 ` [PATCH 5/5] ACPI, APEI, Fix ERST MOVE_DATA instruction implementation Huang Ying
2010-09-21 12:47 ` Andi Kleen [this message]
2010-09-23 9:04 ` huang ying
2010-09-23 9:04 ` huang ying
2010-09-27 5:31 ` Andi Kleen
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20100921124718.GE18991@one.firstfloor.org \
--to=andi@firstfloor.org \
--cc=lenb@kernel.org \
--cc=linux-acpi@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=ying.huang@intel.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.