Subject: Re: Network receive stall avoidance (was [PATCH 2/9] deadlock prevention core)

From: Andrew Morton <[email-masked]>
Date: Sat, 19 Aug 2006 00:28:48 -0700

On Fri, 18 Aug 2006 21:14:09 -0700
Daniel Phillips <[email-masked]> wrote:

> So rather than just the word deadlock, let us add "or atomic 0 order
> alloc failure during TCP receive" to the challenge.  Fair?

If it's significantly performance-affecting in any way which is at all likely to 
affect anyone, sure.

You can get those warnings now with regular networking using e1000, due to
a combination of excessive default rx ringsize and incorrect VM tuning.