Date: Sat, 12 Sep 2015 07:19:24 -0400 From: Mark Saad <nonesuch@longcount.org> To: "freebsd-fs@freebsd.org" <freebsd-fs@freebsd.org> Subject: Re: L2ARC and pool corruption Message-ID: <A2E9DD95-745C-4447-990C-189A184C1542@longcount.org> In-Reply-To: <76AD038E-4D72-48BB-8A3B-BD9BD76F9350@longcount.org> References: <CA%2Bo5Y=1L9_qdrPZs5G=z7ZH01MLpCMEGEPAQ6G8nTPcd1uzUNA@mail.gmail.com> <76AD038E-4D72-48BB-8A3B-BD9BD76F9350@longcount.org>
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All I forgot to include my question . In any case Ryan and I were talking about this issue at work and I was wondering if and how this issue would effect the FreeBSD implementation of zfs . I didn't see any commits that appear to address this . --- Mark Saad | nonesuch@longcount.org > On Sep 12, 2015, at 7:15 AM, Mark Saad <nonesuch@longcount.org> wrote: > > > > --- > Mark Saad | nonesuch@longcount.org > > Begin forwarded message: > >> From: Ryan Zezeski <ryan@zinascii.com> >> Subject: L2ARC and pool corruption >> >> A bug was discovered in L2ARC that can cause pool metadata corruption and ultimately prevents the pool from being imported. This bug was introduced back in Dec 2014. A fix is currently under review. >> >> I recommend that we disable L2ARC for any SmartOS platform images that include this commit: >> >> commit 89c86e32293a30cdd7af530c38b2073fee01411c >> Author: Chris Williamson <Chris.Williamson@delphix.com> >> Date: Mon Dec 29 19:12:23 2014 -0800 >> >> 5408 managing ZFS cache devices requires lots of RAM >> Reviewed by: Christopher Siden <christopher.siden@delphix.com> >> Reviewed by: George Wilson <george.wilson@delphix.com> >> Reviewed by: Matthew Ahrens <mahrens@delphix.com> >> Reviewed by: Don Brady <dev.fs.zfs@gmail.com> >> Reviewed by: Josef 'Jeff' Sipek <josef.sipek@nexenta.com> >> Approved by: Garrett D'Amore <garrett@damore.org> >> >> If you are unsure if a given platform includes this commit then send me the version string and I'll find out. >> >> Here is the announcement on the OmniOS discussion list with more information: >> >> http://permalink.gmane.org/gmane.os.omnios.general/5113 >> >> And the official bug report with root cause analysis: >> >> https://www.illumos.org/issues/6214 >> >> -Zhome | help
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