linux-kernel - Re: New thread: page allocation failure with E1000 (seems to be reproducible)

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

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
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