From: Dave Hansen <haveblue@us.ibm.com>
To: Andrew Morton <akpm@digeo.com>
Cc: William Lee Irwin III <wli@holomorphy.com>,
"Martin J. Bligh" <mbligh@aracnet.com>,
linux-kernel@vger.kernel.org, mingo@elte.hu, rml@tech9.net,
riel@surriel.com, Davide Libenzi <davidel@xmailserver.org>
Subject: Re: unusual scheduling performance
Date: Mon, 18 Nov 2002 15:26:33 -0800 [thread overview]
Message-ID: <3DD97729.5040803@us.ibm.com> (raw)
In-Reply-To: 3DD97336.40326A65@digeo.com
Andrew Morton wrote:
> Dave Hansen wrote:
>>kksymoops is broken, so:
>>dmesg | tail -20 | sort | uniq | ksymoops -m /boot/System.map
>>
>>Trace; c01c5757 <rwsem_down_write_failed+27/170>
>>Trace; c01220c6 <update_wall_time+16/50>
>>Trace; c01223ee <do_timer+2e/c0>
>>Trace; c0166bd3 <.text.lock.eventpoll+6/f3>
>>Trace; c0146568 <__fput+18/c0>
>>Trace; c010ae9a <handle_IRQ_event+2a/60>
>>Trace; c0144a05 <filp_close+85/b0>
>>Trace; c0144a8d <sys_close+5d/70>
>>Trace; c0108fab <syscall_call+7/b>
>>
>
> So it would appear that eventpoll_release() is the problem.
> How odd. You're not actually _using_ epoll there, are you?
Not unless grep uses epoll.
--
Dave Hansen
haveblue@us.ibm.com
next prev parent reply other threads:[~2002-11-18 23:21 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-11-18 8:18 unusual scheduling performance William Lee Irwin III
2002-11-18 16:34 ` Martin J. Bligh
2002-11-18 16:53 ` William Lee Irwin III
2002-11-18 17:53 ` Dave Hansen
2002-11-18 18:16 ` Andrew Morton
2002-11-18 18:34 ` Davide Libenzi
2002-11-18 18:52 ` Andrew Morton
2002-11-18 18:58 ` Davide Libenzi
2002-11-18 18:56 ` Dave Hansen
2002-11-18 18:59 ` Davide Libenzi
2002-11-18 20:17 ` William Lee Irwin III
2002-11-18 22:51 ` Dave Hansen
2002-11-18 23:09 ` Andrew Morton
2002-11-18 23:20 ` Davide Libenzi
2002-11-18 23:26 ` Dave Hansen [this message]
2002-11-18 23:30 ` Davide Libenzi
2002-11-18 23:33 ` Davide Libenzi
2002-11-20 14:12 ` Ingo Molnar
2002-11-20 22:19 ` William Lee Irwin III
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