Date: Mon, 9 Nov 2009 10:12:55 +0100 From: Gerrit =?ISO-8859-1?Q?K=FChn?= <gerrit@pmp.uni-hannover.de> To: "James R. Van Artsdalen" <james-freebsd-fs2@jrv.org> Cc: freebsd-fs@freebsd.org Subject: Re: trace for zfs panic mounting fs after crash with RC2 Message-ID: <20091109101255.e81774e4.gerrit@pmp.uni-hannover.de> In-Reply-To: <4AF4AAFF.2080104@jrv.org> References: <20091106094734.4b056899.gerrit@pmp.uni-hannover.de> <4AF4123A.4080301@andric.com> <20091106231440.4f0f2cbb.gerrit@pmp.uni-hannover.de> <4AF4AAFF.2080104@jrv.org>
next in thread | previous in thread | raw e-mail | index | archive | help
On Fri, 06 Nov 2009 17:02:23 -0600 "James R. Van Artsdalen" <james-freebsd-fs2@jrv.org> wrote about Re: trace for zfs panic mounting fs after crash with RC2: JRVA> How the ZIL got corrupted - if it did - is a harder question. I think it is. Otherwise zfs would not crash while trying to replay the ZIL, wouldn't it? It seems that this happens rather easily with the system I have at hand (it happend twice to me so far - and I crashed the system only twice, that makes 100%, although I doubt that it is that reproducible). Searching around I found some reports of the same or similar issues (but no solution). So apart from recovering my fs (I did not try your suggested patch yet), there are two things I regard as very important: 1. Find you why the ZIL gets corrupted under some circumstances. 2. Find a safe way to recover a fs with a corrupted ZIL. I guess I could live with a corrupted ZIL after a crash, if there was some kind of --ignore-zil switch to get my data back online. In any case, zfs should not panic on corrupted ZIL data, should it? As I do not dare to use the system for storing data until this is sorted out, I can try out almost anything to get more information about the problem. Please let me know what I should do to support debugging. cu Gerrit
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?20091109101255.e81774e4.gerrit>