Re: WARNING: at net/ipv4/tcp_input.c:3418

From: Neal Cardwell
Date: Tue Mar 06 2012 - 00:46:27 EST


On Wed, Feb 29, 2012 at 12:41 PM, Christian Kujau <lists@xxxxxxxxxxxxxxx> wrote:
> This is still happening with 3.3.0-rc5, .config & dmesg here:
>
>   http://nerdbynature.de/bits/3.3.0-rc4/ipv4/

I was finally able to reproduce this issue where there are warnings
about sacked_out going negative (since 3.3.0-rc4), and my testing
shows that this patch seems to fix the issue:

http://patchwork.ozlabs.org/patch/144844/

For folks who were seeing this problem and are so inclined, feel free
to try the latest 3.3-rc6 kernel (or davem's "net" tree in git, if
that's easier) with that patch applied, and let me know how it goes.

thanks,
neal
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