From: Frans Pop <elendil@planet.nl>
To: balbir@linux.vnet.ibm.com
Cc: Ingo Molnar <mingo@elte.hu>,
Christian Borntraeger <borntraeger@de.ibm.com>,
Chuck Ebbert <cebbert@redhat.com>, Greg KH <greg@kroah.com>,
stable@kernel.org, linux-kernel@vger.kernel.org,
Andrew Morton <akpm@linux-foundation.org>
Subject: Re: [stable] 2.6.23 regression: top displaying 9999% CPU usage
Date: Tue, 30 Oct 2007 00:19:27 +0100 [thread overview]
Message-ID: <200710300019.28871.elendil@planet.nl> (raw)
In-Reply-To: <20071029214321.GA25669@linux.vnet.ibm.com>
On Monday 29 October 2007, Balbir Singh wrote:
> We'll also need this additional patch (untested),
OK. Both patches together do the trick. Gave it a nice long test run and got
no more weirdness.
Tested-by: Frans Pop <elendil@planet.nl>
> but in the long run I think the approach needs to be
>
> 1. Update stime and utime at the time of context switching -- keep it
> in sync with p->sum_exec_runtime
> 2. Keep track of system/user context at system call entry points
Feel free to send me a patch for testing when you have one.
Cheers,
Frans
next prev parent reply other threads:[~2007-10-29 23:19 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-10-12 20:31 2.6.23 regression: top displaying 9999% CPU usage Frans Pop
2007-10-12 21:22 ` [stable] " Greg KH
2007-10-13 7:53 ` Frans Pop
2007-10-14 20:36 ` Christian Borntraeger
2007-10-16 8:29 ` Christian Borntraeger
2007-10-16 9:30 ` Balbir Singh
2007-10-16 10:11 ` Frans Pop
2007-10-16 10:38 ` Balbir Singh
2007-10-16 10:34 ` Christian Borntraeger
2007-10-16 12:59 ` Balbir Singh
2007-10-29 12:05 ` Frans Pop
2007-10-29 12:31 ` Balbir Singh
2007-10-29 20:04 ` Ingo Molnar
2007-10-29 20:33 ` Christian Borntraeger
2007-10-29 20:41 ` Ingo Molnar
2007-10-29 21:11 ` Peter Zijlstra
2007-10-29 21:22 ` Frans Pop
2007-10-29 21:43 ` Balbir Singh
2007-10-29 23:19 ` Frans Pop [this message]
2007-10-29 23:22 ` Ingo Molnar
2007-10-30 20:22 ` Otavio Salvador
2007-10-29 23:24 ` Balbir Singh
2007-10-30 5:56 ` Christian Borntraeger
2007-10-30 6:00 ` Balbir Singh
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