Re: -current lock up at dump -L with snapshot
From: Randy Bush (randy_at_psg.com)
Date: 03/30/04
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Date: Tue, 30 Mar 2004 05:58:04 -0800 To: Jun Kuriyama <kuriyama@imgsrc.co.jp>
> I'm still tracking down why my box is usually locking up.
>
> Reference: http://docs.freebsd.org/cgi/mid.cgi?7mznedas57.wl
>
> I try to simplify how to reproduce this.
>
> (a) A filesystem without any snapshot, I can take a dump -L.
on -current as of Mar 19 11:01 gmt (and many others)
/sbin/rdump 0Luaf /dev/null /dev/twed0s1a
/sbin/rdump 0Luaf /dev/null /dev/twed0s1d
/sbin/rdump 0Luaf /dev/null /dev/twed0s1e
/sbin/rdump 0Luaf /dev/null /dev/twed0s1f
/sbin/rdump 0Luaf /dev/null /dev/twed0s1g
/sbin/rdump 0Luaf /dev/null /dev/twed0s1h
gets to
# /do-dump
DUMP: Date of this level 0 dump: Tue Mar 30 13:40:50 2004
DUMP: Date of last level 0 dump: the epoch
DUMP: Dumping snapshot of /dev/twed0s1a (/) to /dev/null
DUMP: mapping (Pass I) [regular files]
DUMP: mapping (Pass II) [directories]
DUMP: estimated 31488 tape blocks.
DUMP: dumping (Pass III) [directories]
DUMP: dumping (Pass IV) [regular files]
DUMP: DUMP: 31903 tape blocks on 1 volume
DUMP: finished in 3 seconds, throughput 10634 KBytes/sec
DUMP: level 0 dump on Tue Mar 30 13:40:50 2004
DUMP: Closing /dev/null
DUMP: DUMP IS DONE
DUMP: Date of this level 0 dump: Tue Mar 30 13:40:54 2004
DUMP: Date of last level 0 dump: the epoch
DUMP: Dumping snapshot of /dev/twed0s1d (/var) to /dev/null
DUMP: mapping (Pass I) [regular files]
DUMP: mapping (Pass II) [directories]
DUMP: estimated 272031 tape blocks.
DUMP: dumping (Pass III) [directories]
DUMP: dumping (Pass IV) [regular files]
and hangs. it sure likes processes
| | \-+= 47218 root /usr/local/bin/bash /do-dump
| | \-+- 47228 root /sbin/rdump 0Luaf /dev/null /dev/twed0s1d (rdump)
| | \-+- 47238 root rdump: /dev/twed0s1d: pass 4: 49.24% done, finished
| | |--- 47239 root /sbin/rdump 0Luaf /dev/null /dev/twed0s1d (rdump)
| | |--- 47240 root /sbin/rdump 0Luaf /dev/null /dev/twed0s1d (rdump)
| | \--- 47241 root /sbin/rdump 0Luaf /dev/null /dev/twed0s1d (rdump)
none are moving
randy
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