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: Tue, 8 Dec 2009 01:03:15 -0800 (PST) Message-ID: <335647.4861.qm@web52906.mail.re2.yahoo.com> References: <4B1DC202.20607@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8BIT Cc: netdev@vger.kernel.org, Andrew Morton , bugme-daemon@bugzilla.kernel.org, stable@kernel.org, Neil Horman To: Eric Dumazet Return-path: Received: from web52906.mail.re2.yahoo.com ([206.190.49.16]:32820 "HELO web52906.mail.re2.yahoo.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with SMTP id S1751089AbZLHJDJ convert rfc822-to-8bit (ORCPT ); Tue, 8 Dec 2009 04:03:09 -0500 In-Reply-To: <4B1DC202.20607@gmail.com> Sender: netdev-owner@vger.kernel.org List-ID: --- On Tue, 8/12/09, Eric Dumazet wrote: > Its all two years old UDP bugs (I spot another one some > hours ago), and very rare. > I am quite suprised it could happen on your machine on > demand. Who said anything about "on demand"? It took about 30 minutes to freeze last time; I was starting to think that a complete recompile had fixed it! For the record: I've only seen that dmesg warning I've reported *once*, and that didn't kill the machine immediately (hence I was able to report it in the first place). > 1) Do you have another NIC adapter to try ? It might be a > buggy driver. (Neil Horman found an error on Intel drivers some > hours ago, that can corrupt skbs) I can test any patches for a e1000 that apply to 2.6.31.x. But the e1000 is an on-board device and I don't have another. But Fedora's 2.6.31.x kernels seem OK. > 2) Could you add following debugging aid ? Not a problem; I do have a serial console attached. > 3) Any chance you can do a git bisect ? How do you git-bisect a bug that you can't reproduce on demand? A negative is easy to spot, but a positive would be not experiencing a random freeze. As I said, I *almost* thought that I'd resolved the issue by recompiling last night. Cheers, Chris