From: Nick Piggin <piggin@cyberone.com.au>
To: Aaron Lehmann <aaronl@vitelus.com>
Cc: Andrew Morton <akpm@osdl.org>, linux-kernel@vger.kernel.org
Subject: Re: Complete I/O starvation with 3ware raid on 2.6
Date: Thu, 25 Sep 2003 19:13:32 +1000 [thread overview]
Message-ID: <3F72B1BC.7080405@cyberone.com.au> (raw)
In-Reply-To: <20030925083142.GK22525@vitelus.com>
Aaron Lehmann wrote:
>On Thu, Sep 25, 2003 at 01:10:52AM -0700, Andrew Morton wrote:
>
>>A few things to run are `top', `ps' and `vmstat 1'.
>>
>
>The first two do not show any information out of the ordinary other
>than the fact that the load average is 11 while only two rsync
>processes are using any CPU at all.
>
But the load average will be 11 because there are processes stuck in the
kernel somewhere in D state. Have a look for them. They might be things
like pdflush, kswapd, scsi_*, etc. Try getting an Alt+SysRq+T dump of
them as well.
next prev parent reply other threads:[~2003-09-25 9:13 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-09-25 7:12 Complete I/O starvation with 3ware raid on 2.6 Aaron Lehmann
2003-09-25 7:43 ` Andrew Morton
2003-09-25 7:50 ` Aaron Lehmann
2003-09-25 8:02 ` Nick Piggin
2003-09-25 7:58 ` Aaron Lehmann
2003-09-25 8:10 ` Andrew Morton
2003-09-25 8:31 ` Aaron Lehmann
2003-09-25 9:13 ` Nick Piggin [this message]
2003-09-25 10:15 ` Aaron Lehmann
2003-09-25 10:25 ` Jens Axboe
2003-09-25 10:29 ` Nick Piggin
-- strict thread matches above, loose matches on Subject: below --
2003-09-25 18:19 Adam Radford
2003-09-28 22:48 ` Aaron Lehmann
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