From owner-freebsd-current@FreeBSD.ORG Tue Nov 3 05:46:54 2009 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id A544F106566B; Tue, 3 Nov 2009 05:46:54 +0000 (UTC) (envelope-from ianf@clue.co.za) Received: from inbound01.jnb1.gp-online.net (inbound01.jnb1.gp-online.net [41.161.16.135]) by mx1.freebsd.org (Postfix) with ESMTP id 408738FC24; Tue, 3 Nov 2009 05:46:53 +0000 (UTC) Received: from [41.154.0.10] (helo=clue.co.za) by inbound01.jnb1.gp-online.net with esmtpsa (TLS-1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.63) (envelope-from ) id 1N5CEG-0001S3-C2; Tue, 03 Nov 2009 07:46:52 +0200 Received: from localhost ([127.0.0.1] helo=clue.co.za) by clue.co.za with esmtp (Exim 4.69 (FreeBSD)) (envelope-from ) id 1N5CEF-0002fT-Mm; Tue, 03 Nov 2009 07:46:51 +0200 To: Robert Watson From: "Ian Freislich" X-Attribution: BOFH Date: Tue, 03 Nov 2009 07:46:51 +0200 Message-Id: Cc: FreeBSD-Current Subject: Believed fixed (was: Re: Another panic (during netisr?)) X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 03 Nov 2009 05:46:54 -0000 Robert Watson wrote: > Since debugging this went offline, the quick summary for the list > is: it looks like a race condition in the read-write locking for > tcbinfo in 8.x/9.x was responsible, and I've now committed a fix > to head and merged to stable/8 this morning. If this recurs with > the fix, please let me know, because that would mean we fixed the > wrong bug. :-) Since this I've not had a panic on our routers in the last 25 days. Before, it would panic about every 5 days with a corrupted stack. Ian -- Ian Freislich