From: Jeremy Fitzhardinge <jeremy@goop.org>
To: Suresh Siddha <suresh.b.siddha@intel.com>
Cc: Ingo Molnar <mingo@elte.hu>,
"jens.axboe@oracle.com" <jens.axboe@oracle.com>,
"paulmck@linux.vnet.ibm.com" <paulmck@linux.vnet.ibm.com>,
"nickpiggin@yahoo.com.au" <nickpiggin@yahoo.com.au>,
"torvalds@linux-foundation.org" <torvalds@linux-foundation.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"Mallick, Asit K" <asit.k.mallick@intel.com>
Subject: Re: [patch] generic-ipi: fix the smp_mb() placement
Date: Fri, 31 Oct 2008 16:10:15 +1100 [thread overview]
Message-ID: <490A9337.6090504@goop.org> (raw)
In-Reply-To: <20081030202322.GM30573@linux-os.sc.intel.com>
Suresh Siddha wrote:
> We didn't see the lockup in our tests but Xen folks reported similar failures
> with their smp call function code.
>
...really? I don't remember anything like that, but perhaps I'm
forgetting something. In Xen the IPI is sent with a hypercall, which is
definitely a solid enough barrier for these purposes.
J
next prev parent reply other threads:[~2008-10-31 5:10 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-10-29 22:42 [patch] generic-ipi: fix the smp_mb() placement Suresh Siddha
2008-10-30 7:20 ` Jens Axboe
2008-10-30 16:30 ` Suresh Siddha
2008-10-30 17:25 ` Jens Axboe
2008-10-30 18:53 ` Ingo Molnar
2008-10-30 20:23 ` Suresh Siddha
2008-10-31 5:10 ` Jeremy Fitzhardinge [this message]
2008-10-31 9:39 ` Ingo Molnar
2008-10-31 11:12 ` Jeremy Fitzhardinge
2008-10-31 16:53 ` Suresh Siddha
2008-10-31 20:30 ` Jeremy Fitzhardinge
2008-11-03 10:17 ` Ingo Molnar
2008-11-03 23:48 ` Jeremy Fitzhardinge
2008-11-04 9:19 ` Ingo Molnar
2008-11-04 22:25 ` Suresh Siddha
2008-11-05 9:20 ` Jens Axboe
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=490A9337.6090504@goop.org \
--to=jeremy@goop.org \
--cc=asit.k.mallick@intel.com \
--cc=jens.axboe@oracle.com \
--cc=linux-kernel@vger.kernel.org \
--cc=mingo@elte.hu \
--cc=nickpiggin@yahoo.com.au \
--cc=paulmck@linux.vnet.ibm.com \
--cc=suresh.b.siddha@intel.com \
--cc=torvalds@linux-foundation.org \
/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.