Date: Sat, 19 Jul 2008 10:17:02 +0100 From: Alex Trull <alex@trull.org> To: Daniel Eriksson <daniel_k_eriksson@telia.com> Cc: freebsd-stable <freebsd-stable@freebsd.org> Subject: Re: Panic on ZFS startup after crash Message-ID: <1216459022.6521.6.camel@porksoda> In-Reply-To: <4F9C9299A10AE74E89EA580D14AA10A61A197A@royal64.emp.zapto.org> References: <4F9C9299A10AE74E89EA580D14AA10A61A197A@royal64.emp.zapto.org>
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[-- Attachment #1 --] I've tried neither of these in your particular case, but they might be worth a try: Just a suggestion, but try specify vfs.zfs.zil_disable=1 or as a kernel variable in the boot cli. You may want to try export and import the pool and see how it likes it then. -- Alex On Sat, 2008-07-19 at 10:51 +0200, Daniel Eriksson wrote: > I have a large ZFS pool that seems to be partially corrupt, causing a > panic on ZFS startup. This is on a RELENG_7_0 machine. > > This is what happens when I try to start ZFS (written down by hand): > > ZFS: WARNING: can't process intent log for tank02/home > ZFS: WARNING: can't process intent log for tank02 > panic: solaris assert: dmu_read(os, smo->smo_object, offset, size, > entry_map) == 0 (0x5 == 0x0), file: > /usr/src/sys/modules/zfs/../../contrib/opensolaris/uts/common/fs/zfs/spa > ce_map.c, line: 341 > > The pool sits on top of a geli-encrypted hardware raid-array (Highpoint > RocketRAID 2340, 8 x 500GB in RAID-5 config). Unfortunately the array > broke (2 drives disconnected) due to a bad PSU, and this eventually > crashed the box. When I restarted the box the above message showed up as > soon as I started ZFS. > > It is my understanding that the intent log is emptied on clean shutdown, > and if it is not empty during startup ZFS tries to "replay" the > transactions recorded in it. I assume the initial crash left the intent > log in an inconsistent state and that ZFS panics on startup due to badly > formatted data in the intent log. > > Is there any way I can recover this pool? > > > ___ > Daniel Eriksson (http://www.toomuchdata.com/) > _______________________________________________ > freebsd-stable@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-stable > To unsubscribe, send any mail to "freebsd-stable-unsubscribe@freebsd.org" [-- Attachment #2 --] -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.6 (GNU/Linux) iD8DBQBIgbEOey4m6/eWxTQRArBAAJ9pvH4aVknF0A1hYjosSKyChW+KrgCdEdXD xwC3aBnUTJbiNG5xD0bnFOM= =gPGQ -----END PGP SIGNATURE-----
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