Date: Sun, 31 Jan 2010 23:49:30 -0500 From: Rich <rincebrain@gmail.com> To: Wes Morgan <morganw@chemikals.org> Cc: freebsd-fs@freebsd.org Subject: Re: Errors on a file on a zpool: How to remove? Message-ID: <5da0588e1001312049p36b5facam478052cc6aeb4f1d@mail.gmail.com> In-Reply-To: <5da0588e1001240544q61e3bebbka7ad1248343be26d@mail.gmail.com> References: <5da0588e1001222223m773648am907267235bdcf882@mail.gmail.com> <4B5B94B8.7070509@modulus.org> <5da0588e1001231638i349f8f17t297e970b08825441@mail.gmail.com> <alpine.BSF.2.00.1001232307590.83451@pragry.qngnvk.ybpny> <5da0588e1001232017m6c67731fwaa1d71cd86800017@mail.gmail.com> <alpine.BSF.2.00.1001232341590.19303@pragry.qngnvk.ybpny> <5da0588e1001232128w5a551674od0805c2ff0b884ad@mail.gmail.com> <alpine.BSF.2.00.1001240043350.19303@pragry.qngnvk.ybpny> <alpine.BSF.2.00.1001240635360.2160@ibyngvyr> <5da0588e1001240544q61e3bebbka7ad1248343be26d@mail.gmail.com>
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Well, that's frustrating. I moved all the data off of that FS on the pool, onto a newly-created FS on the pool. It took a few days. I just attempted to zfs destroy the old filesystem. The command hung for 30 minutes, at which point I decided that this was likely not doing anything useful, especially since operations to all but the latest-created filesystem on the pool now hung, as well as zfs list. I got this fun thing out of /var/log/messages, too: Jan 31 23:12:05 manticore root: ZFS: checksum mismatch, zpool=rigatoni path=/dev/da5 offset=446136819712 size=8192 Jan 31 23:12:05 manticore root: ZFS: checksum mismatch, zpool=rigatoni path=/dev/da2 offset=320393101312 size=8192 Jan 31 23:12:05 manticore root: ZFS: checksum mismatch, zpool=rigatoni path=/dev/da4 offset=1231402180608 size=8192 Jan 31 23:12:05 manticore root: ZFS: checksum mismatch, zpool=rigatoni path=/dev/da5 offset=446136819712 size=8192 Jan 31 23:12:05 manticore root: ZFS: checksum mismatch, zpool=rigatoni path=/dev/da2 offset=320393101312 size=8192 Jan 31 23:12:05 manticore root: ZFS: checksum mismatch, zpool=rigatoni path=/dev/da4 offset=1231402180608 size=8192 Jan 31 23:12:05 manticore root: ZFS: zpool I/O failure, zpool=rigatoni error=86 Jan 31 23:12:05 manticore root: ZFS: vdev I/O failure, zpool=rigatoni path= offset= size= error= The last one, of course, being fascinating. Okay, how annoying. I try sysctl debug.kdb.panic=1, and it hangs. Uh-oh. I reboot physically, and the system hangs on "Mounting local filesystems..." for a long time. I power the machine off, unplug all 5 devices in that pool, and boot the machine again. It boots rapidly and fine. I export the pool (now reporting that all 5 devices were missing, unsurprisingly), power the machine off, plug the 5 devices back in, and power on. Machine boots. zpool import rigatoni succeeds. zfs list now hangs. df output shows no filesystems from that pool, and /var/log/messages got another copy of what I just pasted above. Thoughts? - Rich
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