From: Srivatsa Vaddagiri <vatsa@in.ibm.com>
To: Nigel Cunningham <ncunningham@cyclades.com>
Cc: Nick Piggin <nickpiggin@yahoo.com.au>,
Ingo Molnar <mingo@elte.hu>, Li Shaohua <shaohua.li@intel.com>,
Andrew Morton <akpm@osdl.org>, Linus Torvalds <torvalds@osdl.org>,
Zwane Mwaikambo <zwane@arm.linux.org.uk>,
lkml <linux-kernel@vger.kernel.org>,
Rusty Russell <rusty@rustcorp.com.au>
Subject: Re: PATCH: Fix race in cpu_down (hotplug cpu)
Date: Tue, 20 Sep 2005 10:11:10 +0530 [thread overview]
Message-ID: <20050920044110.GA19184@in.ibm.com> (raw)
In-Reply-To: <1127170547.18737.3.camel@localhost>
On Tue, Sep 20, 2005 at 08:55:47AM +1000, Nigel Cunningham wrote:
> I got on the same page eventually :). When you have it ready, I'll be
> happy to try it. Apart from trying another 75 suspends (which I'm happy
> to do), I'm not really sure how we can be totally sure that the patch
> fixes it. Do you have any thoughts in this regard?
Since this seems to be related to CPU down event, you could run a
tight loop like this overnight (for all CPUs in the system):
while :
do
echo 0 > online
echo 1 > online
done
This, maybe in conjunction with some other test like LTP or make -jN bzImage,
is usually enough to capture all CPU-hotplug related problems.
--
Thanks and Regards,
Srivatsa Vaddagiri,
Linux Technology Center,
IBM Software Labs,
Bangalore, INDIA - 560017
next prev parent reply other threads:[~2005-09-20 4:42 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-09-19 4:48 PATCH: Fix race in cpu_down (hotplug cpu) Li, Shaohua
2005-09-19 5:10 ` Srivatsa Vaddagiri
2005-09-19 5:31 ` Shaohua Li
2005-09-19 5:57 ` Srivatsa Vaddagiri
2005-09-19 6:11 ` Nigel Cunningham
2005-09-19 6:23 ` Srivatsa Vaddagiri
2005-09-19 6:29 ` Nick Piggin
2005-09-19 7:00 ` Srivatsa Vaddagiri
2005-09-19 6:31 ` Nigel Cunningham
2005-09-19 7:09 ` Srivatsa Vaddagiri
2005-09-19 6:37 ` Shaohua Li
2005-09-19 6:36 ` Nick Piggin
2005-09-19 6:54 ` Nigel Cunningham
2005-09-19 7:12 ` Shaohua Li
2005-09-19 7:22 ` Nick Piggin
2005-09-19 7:28 ` Ingo Molnar
2005-09-19 7:37 ` Nick Piggin
2005-09-19 22:55 ` Nigel Cunningham
2005-09-20 4:41 ` Srivatsa Vaddagiri [this message]
2005-09-19 7:07 ` Srivatsa Vaddagiri
2005-09-19 5:23 ` Nigel Cunningham
2005-09-19 5:28 ` Srivatsa Vaddagiri
2005-09-19 5:35 ` Nigel Cunningham
2005-09-19 7:43 ` Where do packets sent to 255.255.255.255 go? Wei-Che, Hsu
-- strict thread matches above, loose matches on Subject: below --
2005-09-19 3:28 PATCH: Fix race in cpu_down (hotplug cpu) Nigel Cunningham
2005-09-19 4:22 ` Srivatsa Vaddagiri
2005-09-19 3:15 Nigel Cunningham
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