Date: Wed, 11 Jan 2012 22:43:40 +0100 From: Fabian Keil <freebsd-listen@fabiankeil.de> To: freebsd-fs@freebsd.org Subject: Re: Unplugging disk under ZFS yield panic Message-ID: <20120111224340.72f28ef4@fabiankeil.de> In-Reply-To: <20120111204041.GA47175@icarus.home.lan> References: <20120111154722.000036e4@unknown> <20120111210708.1168781e@fabiankeil.de> <20120111204041.GA47175@icarus.home.lan>
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[-- Attachment #1 --] Jeremy Chadwick <freebsd@jdc.parodius.com> wrote: > On Wed, Jan 11, 2012 at 09:07:08PM +0100, Fabian Keil wrote: > > Gergely CZUCZY <phoemix@harmless.hu> wrote: > > > > > I'd like to ask, whether it is normal behaviour when we're unplugging a > > > disk under a ZFS system then on the first write a kernel panic happened. > > > > Sounds familiar. I currently have two PRs open for > > reproducible kernel panics after a vdev gets lost: > > http://www.freebsd.org/cgi/query-pr.cgi?pr=kern/162010 > > http://www.freebsd.org/cgi/query-pr.cgi?pr=kern/162036 > > > > Note that the pool layouts are different, though. > > Is this problem truly ZFS-specific? I'd been tracking this problem for > years, and was told it was fixed: I'm not saying that my problems are ZFS-specific. The backtraces mainly contain geom functions and no ZFS code, so ZFS might be the victim here. > http://wiki.freebsd.org/BugBusting/Commonly_reported_issues > > * Panic occurs when a mounted device (USB, SATA, local image file, > etc.) is removed > > Workaround: Be sure to umount all filesystems before removing the > physical device > Partial fix: Committed to CURRENT (8.0) on/prior to 2008/02/21 > > There is ongoing work to fully fix this problem, ETA 2009/02 This is a different problem. It was even easier to reproduce and at least I haven't seen it since the fixes went in. Fabian [-- Attachment #2 --] -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.18 (FreeBSD) iEYEARECAAYFAk8OApEACgkQBYqIVf93VJ0ApACfRWk3i0jNsLdGzovWgL+tGl8m 2UYAn36v0AQDMO6q+iz3TdiP5AxYnDRB =nzwg -----END PGP SIGNATURE-----home | help
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