From: Nick Piggin <nickpiggin@yahoo.com.au>
To: "Li, Shaohua" <shaohua.li@intel.com>
Cc: Andrew Morton <akpm@osdl.org>,
Nigel Cunningham <ncunningham@cyclades.com>,
Srivatsa Vaddagiri <vatsa@in.ibm.com>,
Linux Kernel Mailing List <Linux-Kernel@vger.kernel.org>,
Ian Molton <spyro@f2s.com>
Subject: Re: [PATCH 2.6.14-rc1-git5] sched: disable preempt in idle tasks
Date: Wed, 02 Nov 2005 13:46:16 +1100 [thread overview]
Message-ID: <43682878.3040800@yahoo.com.au> (raw)
In-Reply-To: <59D45D057E9702469E5775CBB56411F1C19A01@pdsmsx406>
Hi Shaohua,
Li, Shaohua wrote:
>
> What's the status of the patch? I didn't see it in base kernel.
> We found another bug related with this issue. On UP system, if a CPU
> enters
> 'mwait_idle', it never leaves it, as the 'mwait_idle' loop will never
> end.
> Disabling preempt fixes the bug. Should I submit a patch just disabling
> preempt in 'mwait_idle' or wait for your patch?
>
The patch is in Andrew's tree, and it should get merged for 2.6.15.
If you have verified that disabling preempt in mwait_idle fixes the
bug, then you may like to send that to the 2.6.14.stable guys.
Thanks,
Nick
--
SUSE Labs, Novell Inc.
Send instant messages to your online friends http://au.messenger.yahoo.com
next prev parent reply other threads:[~2005-11-02 2:48 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-11-02 2:33 [PATCH 2.6.14-rc1-git5] sched: disable preempt in idle tasks Li, Shaohua
2005-11-02 2:46 ` Nick Piggin [this message]
2005-11-02 5:04 ` Nigel Cunningham
-- strict thread matches above, loose matches on Subject: below --
2005-09-21 15:41 Nick Piggin
2005-09-21 21:43 ` Nigel Cunningham
2005-09-22 1:31 ` Andrew Morton
2005-09-22 3:25 ` Nick Piggin
2005-09-22 9:03 ` Andi Kleen
2005-09-25 23:24 ` Nigel Cunningham
2005-10-06 23:03 ` Nigel Cunningham
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