Date: Tue, 26 Jul 2011 16:18:42 -0400 From: Mike Tancsa <mike@sentex.net> To: freebsd-fs@freebsd.org Subject: zfs error - snapshot: Bad file descriptor Message-ID: <4E2F2122.6080204@sentex.net>
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I googled around for an answer to this, but other than reboot, I never found any other strategies.
On my backup server (RELENG_8 from Jun 20th, AMD64 8G of RAM), I have one big pool
# zpool status -v
pool: zbackup1
state: ONLINE
scan: scrub repaired 0 in 11h11m with 0 errors on Mon Jul 25 19:51:11 2011
config:
NAME STATE READ WRITE CKSUM
zbackup1 ONLINE 0 0 0
raidz1-0 ONLINE 0 0 0
ada5 ONLINE 0 0 0
ada7 ONLINE 0 0 0
ada4 ONLINE 0 0 0
ada6 ONLINE 0 0 0
raidz1-1 ONLINE 0 0 0
ada0 ONLINE 0 0 0
ada1 ONLINE 0 0 0
ada2 ONLINE 0 0 0
ada3 ONLINE 0 0 0
errors: No known data errors
and a number of file systems
zbackup1 5241690240 2248788502 2992901738 43% /zbackup1
zbackup1/archive 2992901771 33 2992901738 0% /zbackup1/archive
zbackup1/cust1 3254254853 261353115 2992901738 8% /zbackup1/cust1
When I would change to /zbackup1/cust1/.zfs
and do a
ls -l
# ls -l
ls: snapshot: Bad file descriptor
total 4
dr-xr-xr-x 4 root wheel - 4 Mar 4 08:43 .
drwxr-xr-x 21 root wheel - 21 Jun 29 11:46 ..
dr-xr-xr-x 2 root wheel - 2 Mar 4 08:43 shares
snapshot was set to visible
zbackup1/cust1 snapdir visible inherited from zbackup1
And I could even list them in zfs get all
zbackup1/cust1@20110715 type snapshot -
zbackup1/cust1@20110715 creation Fri Jul 15 8:10 2011 -
zbackup1/cust1@20110715 used 7.41G -
But I could never change to the directory and do an ls -l, let along get files
I ran a full scrub, but it did not help. I did a reboot and all worked after that.
# ls -l
total 4
dr-xr-xr-x 4 root wheel - 4 Mar 4 08:43 .
drwxr-xr-x 21 root wheel - 21 Jun 29 11:46 ..
dr-xr-xr-x 2 root wheel - 2 Mar 4 08:43 shares
dr-xr-xr-x 5 root wheel - 5 Jul 26 12:11 snapshot
# cd snapshot/
# ls -l
total 6
dr-xr-xr-x 5 root wheel - 5 Jul 26 12:11 .
dr-xr-xr-x 4 root wheel - 4 Mar 4 08:43 ..
drwxr-xr-x 20 root wheel - 21 Jun 29 11:46 20110715
drwxr-xr-x 20 root wheel - 21 Jun 29 11:46 20110722
drwxr-xr-x 20 root wheel - 21 Jun 29 11:46 test
In the future, are there any other things I can do to fix the issue short of rebooting ?
---Mike
--
-------------------
Mike Tancsa, tel +1 519 651 3400
Sentex Communications, mike@sentex.net
Providing Internet services since 1994 www.sentex.net
Cambridge, Ontario Canada http://www.tancsa.com/
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