From mboxrd@z Thu Jan 1 00:00:00 1970 From: Chris Rankin Subject: Re: [Bugme-new] [Bug 14749] New: Kernel locks up after a few minutes of heavy surfing Date: Mon, 7 Dec 2009 16:19:35 -0800 (PST) Message-ID: <138412.20552.qm@web52903.mail.re2.yahoo.com> References: <20091207135342.6fb07264.akpm@linux-foundation.org> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8BIT Cc: bugzilla-daemon@bugzilla.kernel.org, bugme-daemon@bugzilla.kernel.org, stable@kernel.org, Eric Dumazet To: netdev@vger.kernel.org, Andrew Morton Return-path: Received: from web52903.mail.re2.yahoo.com ([206.190.49.13]:41839 "HELO web52903.mail.re2.yahoo.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with SMTP id S965148AbZLHAT3 convert rfc822-to-8bit (ORCPT ); Mon, 7 Dec 2009 19:19:29 -0500 In-Reply-To: <20091207135342.6fb07264.akpm@linux-foundation.org> Sender: netdev-owner@vger.kernel.org List-ID: --- On Mon, 7/12/09, Andrew Morton 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