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Date: Mon, 1 Mar 2010 18:34:25 +0100
Message-ID: <2d460de71003010934m76594f4fk2e0b505b1867538c@mail.gmail.com>
Subject: Re: New thread: page allocation failure with E1000 (seems to be 
	reproducible)
From: Richard Hartmann <richih.mailinglist@gmail.com>
To: Jesse Brandeburg <jesse.brandeburg@gmail.com>
Cc: e1000-devel@lists.sf.net, linux-kernel@vger.kernel.org,
       Andrew Pochinsky <avp@mit.edu>
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Hi Jesse,

> the memory allocation (order:0), while unexpected, are not fatal, and
> the e1000 driver is written to handle the failures during allocation.
>
> Does something else happen to the system after this or does operation continue?

I can not be sure, but I _think_ some bogus data made it into userspace.
I did have some binary in a text string I received & logged, which is a
tad unusual.


> You might be able to try the sysctl tweak to reserve a little more
> memory for driver allocations.
> # sysctl vm.min_free_kbytes
> # sysctl -e vm.min_free_kbytes=<double what you have>

I will try that, thanks.


> have you increased the number of rx/tx descriptors in use by e1000?

No. Should I?



Thanks,
Richard