linux-kernel - OOM and USB, latest Linux 2.6

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Message-ID: <20070217164920.GA31755@localdomain>
Date:	Sat, 17 Feb 2007 18:49:21 +0200
From:	Dan Aloni <da-x@...atomic.org>
To:	Linux Kernel List <linux-kernel@...r.kernel.org>
Cc:	linux-usb-devel@...ts.sourceforge.net
Subject: OOM and USB, latest Linux 2.6

Hello,

Is it possible that OOM isn't handled very well if say, my entire
file system structure is on a USB storage device?

I'm not an expert on this particular matter but I'm pretty sure 
that I noticed GFP_KERNEL allocation being done on the write-out 
path in the usb-storage kernel thread, leading to a deadlock 
during OOM.

Suggestions are welcomed...

-- 
Dan Aloni
XIV LTD, http://www.xivstorage.com
da-x (at) monatomic.org, dan (at) xiv.co.il
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