netdev - Re: [Bugme-new] [Bug 14749] New: Kernel locks up after a few minutes of heavy surfing

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Message-ID: <138412.20552.qm@web52903.mail.re2.yahoo.com>
Date:	Mon, 7 Dec 2009 16:19:35 -0800 (PST)
From:	Chris Rankin <rankincj@...oo.com>
To:	netdev@...r.kernel.org, Andrew Morton <akpm@...ux-foundation.org>
Cc:	bugzilla-daemon@...zilla.kernel.org,
	bugme-daemon@...zilla.kernel.org, stable@...nel.org,
	Eric Dumazet <eric.dumazet@...il.com>
Subject: Re: [Bugme-new] [Bug 14749] New: Kernel locks up after a few minutes of heavy surfing

--- On Mon, 7/12/09, Andrew Morton <akpm@...ux-foundation.org> wrote:
> A regression in the latest 2.6.31 -stable tree.
> 
> Are you really really sure that you applied that patch,
> recompiled, reinstalled, etc?

Yup, 'fraid so. And because you asked so nicely, I've just managed to reproduce the problem having first done "make distclean" and "make oldconfig", followed by "make" :-). (This was with F12's latest compiler gcc 4.4.2 20091027, BTW.) The symptom was the same - a complete system freeze without anything written to the serial console. So it's just a *guess* that it's network-related, but it does always seem to happen while I'm waiting for a web page to load in my browser...

I saw something interesting in 2.6.31.7 about a crash due to fragmentation:

ipv4: additional update of dev_net(dev) to struct *net in ip_fragment.c, NULL ptr OOPS

I'll try applying that patch too, to see if it makes any difference. Along with that other UDP-related thing I noticed:

udp: Fix udp_poll() and ioctl()

Cheers,
Chris

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