Date: Tue, 23 Nov 2010 11:17:43 -0600 From: Josh Paetzel <josh@tcbug.org> To: stable@freebsd.org Cc: imp@freebsd.org, rmacklem@uoguelph.ca, re@freebsd.org Subject: Re: NFS regression on recent STABLE Message-ID: <201011231117.49879.josh@tcbug.org> In-Reply-To: <201011230833.59085.josh@tcbug.org> References: <201011230833.59085.josh@tcbug.org>
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[-- Attachment #1 --] On Tuesday, November 23, 2010 08:33:52 am Josh Paetzel wrote: > I've been involved with a project at work doing some fun things with NFS. > Recently due to changes in a available hardware we did a complete refresh > of the system. New HBAs, new storage boxes, and due to some internal > software confusion we updated the OS on the head from 8.1-R with zpool 15 > backported to STABLE. > > Our primary client that we were using against this setup was a ESXi 4.1 > machine. In a nutshell, it didn't work. Long description is, ZFS would > deadlock and any operation on the pool would hang. The ESXi instance would > mark the NFS mount as unavailable. I initially thought this could be due > to any number of factors, we have new HBAs in the mix, new storage boxes, > a new version of zpool, and one test case. > > Meanwhile, back at the ranch, I have a somewhat similar setup at home. > FreeBSD 8.1 NFS server, ESXi 4.1 box mounting an NFS exported ZFS > filesystem from the FreeBSD box as a datastore. > > Last night I pulled that box up to STABLE, rebooted it, and a minute after > it rebooted the ESXi box marked the NFS datastore as unavailable. I > checked the FreeBSD machine and sure enough it hung doing an ls on the > zpool. > > I ran a few tests, and as soon as the ESXi box mounts the NFS export it > hangs the ZFS filesystem. If I don't mount it up, the NFS server does > fine. Thinking it might be a ZFS problem I moved the mount to a UFS > filesystem. While this doesn't cause the box to hang on filesystem > operations, the mount goes unavailable. > > The only other client I have on my network is a FreeBSD 8.1 box, and that > has no issues > > All of this is with the standard NFS server, I haven't yet tested with the > experimental server. Thanks to kib for helping resolve this. In a nutshell, at one point there was a problem in STABLE, it was fixed, and my local cvsup mirror fell out of sync and while I thought I was seeing a problem from a system updated last night, I was getting an old rev. Updating the system to a mirror that isn't broken fixed the problem. -- Thanks, Josh Paetzel [-- Attachment #2 --] -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.15 (FreeBSD) iQEcBAABAgAGBQJM6/c9AAoJEKFq1/n1feG2FjsIAK+ikMfUWiUkUEDKxSjprASg UCeuLr2YEnpUwmEnV77a6BUPCH1DYcHHm3rFixyY8aZGlmXTP1BosteSY+oKHu1Q 1gVwJwb+g2LhvanZnHlpY7zhBRzZSQB2ew5gJaoilW01ulQjoTptbBfFBXCq0MPO 0Thi0bYYkODtUOOtIRun0P+s5uT3bdAlmlqHRYFvYO3y8rfoQe0QOctzP5UFiMkb 8Y8DHzc254TSf793g+R0F9I9SclCeBqCwUiLEw1c4o3leR1P5jvldh09oNkSgxuY SBOfh9bqSTcFOn8DMtXgJwSfqV5bSVK9qBGrgy9i4/d4WBilOJnPfVqtR/WizLA= =6VM9 -----END PGP SIGNATURE-----
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