From: Andi Kleen <andi@firstfloor.org>
To: David Miller <davem@davemloft.net>
Cc: andi@firstfloor.org, linux-kernel@vger.kernel.org,
sparclinux@vger.kernel.org
Subject: Re: NMI watchdog + NOHZ question
Date: Wed, 24 Jun 2009 12:23:25 +0200 [thread overview]
Message-ID: <20090624102325.GN6760@one.firstfloor.org> (raw)
In-Reply-To: <20090624.024428.215194313.davem@davemloft.net>
> And similarly to sparc64, if that 5+ second qla2xxx interrupt
> sequence happens after the tick_nohz_stop_sched_tick() call
> we can run into the same situation.
Yes it would be probably safer to do the tick disabling with interrupts off
already.
These days NMI watchdog is not used much on x86 anymore because it's
default off, so probably people never noticed that.
-Andi
--
ak@linux.intel.com -- Speaking for myself only.
next prev parent reply other threads:[~2009-06-24 10:23 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-06-22 7:27 NMI watchdog + NOHZ question David Miller
2009-06-22 8:18 ` Andi Kleen
2009-06-22 9:27 ` David Miller
2009-06-24 0:17 ` David Miller
2009-06-24 7:03 ` Andi Kleen
2009-06-24 7:08 ` David Miller
2009-06-24 7:15 ` Andi Kleen
2009-06-24 7:17 ` David Miller
2009-06-24 7:53 ` Andi Kleen
2009-06-24 8:51 ` David Miller
2009-06-24 9:44 ` David Miller
2009-06-24 10:23 ` Andi Kleen [this message]
2009-06-24 10:32 ` David Miller
2009-06-24 10:52 ` Andi Kleen
2009-06-24 10:59 ` David Miller
2009-06-24 11:10 ` Andi Kleen
2009-09-03 9:36 ` David Miller
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=20090624102325.GN6760@one.firstfloor.org \
--to=andi@firstfloor.org \
--cc=davem@davemloft.net \
--cc=linux-kernel@vger.kernel.org \
--cc=sparclinux@vger.kernel.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 a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox