From: Andrew Morton <akpm@osdl.org>
To: Brad Allen <Ulmo-Usenet@Usenet.Q.Net>
Cc: linux-kernel@vger.kernel.org
Subject: Re: allocation failures with CBQ bandwidth limiting & high net use (was Re: Filesystem kernel hangup, 2.6.3 (bad: scheduling while atomic!))
Date: Tue, 27 Apr 2004 22:42:39 -0700 [thread overview]
Message-ID: <20040427224239.11a59b84.akpm@osdl.org> (raw)
In-Reply-To: <20040427.213919.884032925.ulmo-u@Q.Net>
Brad Allen <Ulmo-Usenet@Usenet.Q.Net> wrote:
>
> My MTU for GbE (e1000) is 9000, and NFS block size 8192 bytes.
> That GbE is a consumer grade Intel model.
> ....
> swapper: page allocation failure. order:3, mode:0x20
The kernel simply doesn't have a hope of being able to find eight
physically-contiguous free pages at interrupt time.
You'll get some benefit from increasing /proc/sys/vm/min_free_kbytes
But it's beginning to look like we need separately-managed higher-order
page pools for this. At least.
prev parent reply other threads:[~2004-04-28 5:43 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-02-22 15:49 Filesystem kernel hangup, 2.6.3 (bad: scheduling while atomic!) Mikael Wahlberg
2004-02-23 12:19 ` Christoph Hellwig
2004-02-23 13:08 ` Mikael Wahlberg
2004-02-23 13:13 ` Christoph Hellwig
2004-03-04 9:35 ` Mikael Wahlberg
2004-02-23 13:46 ` Seth Mos
2004-02-23 13:50 ` Mikael Wahlberg
2004-02-23 13:46 ` Mikael Wahlberg
[not found] ` <1077543963.1246.20.camel@harrier.lucky.linux.kernel>
2004-04-28 4:39 ` allocation failures with CBQ bandwidth limiting & high net use (was Re: Filesystem kernel hangup, 2.6.3 (bad: scheduling while atomic!)) Brad Allen
2004-04-28 5:42 ` Andrew Morton [this message]
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