From: starlight@binnacle.cx
To: Stephen Hemminger <shemminger@vyatta.com>,
Sony Chacko <sony.chacko@qlogic.com>,
Rajesh Borundia <rajesh.borundia@qlogic.com>
Cc: linux-kernel@vger.kernel.org, netdev <netdev@vger.kernel.org>
Subject: Re: kernel 3.1.1 message: <IRQ> warn_alloc_failed
Date: Fri, 09 Dec 2011 13:03:54 -0500 [thread overview]
Message-ID: <6.2.5.6.2.20111209130007.039b3078@binnacle.cx> (raw)
In-Reply-To: <20111209095014.14a647cd@nehalam.linuxnetplumber.net >
At 09:50 AM 12/9/2011 -0800, Stephen Hemminger wrote:
>On Thu, 08 Dec 2011 21:10:02 -0500 starlight@binnacle.cx wrote:
>
>You are seeing memory allocation failures because device
>is allocating a 16K (order 2) size socket buffer. You are using
>netxen device, and it looks like the problem.
>
>From reading the netxen driver source. The LRO buffers
>in this device are very large (8060+skb overhead).
>Until the driver is fixed to use fragmented page size memory,
>I recommend turning off LRO.
Thank you for the analysis. As an alternative
would it make sense to double or quadruple
/proc/sys/vm/min_free_kbytes
or perhaps do the same for
/proc/slabinfo(size-16384)
or both?
next prev parent reply other threads:[~2011-12-09 18:03 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-12-09 2:10 kernel 3.1.1 message: <IRQ> warn_alloc_failed starlight
2011-12-09 17:50 ` Stephen Hemminger
[not found] ` <20111209095014.14a647cd@nehalam.linuxnetplumber.net >
2011-12-09 18:03 ` starlight [this message]
2011-12-13 17:42 ` Rajesh Borundia
2011-12-13 18:41 ` Stephen Hemminger
2011-12-13 19:09 ` Ben Hutchings
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