[Bug 806] New: mkfs.xfs or xfs_repair problem with small filesystems

[bugzilla-daemon@xxxxxxxxxxx]

http://oss.sgi.com/bugzilla/show_bug.cgi?id=806

           Summary: mkfs.xfs or xfs_repair problem with small filesystems
           Product: Linux XFS
           Version: Current
          Platform: PC
        OS/Version: Linux
            Status: NEW
          Severity: normal
          Priority: P2
         Component: xfsprogs
        AssignedTo: xfs-masters@xxxxxxxxxxx
        ReportedBy: misiek@xxxxxxxxxxxx


xfs_repair fails for small filesystems like 20MB one:

[arekm@tarm ~/test]$ dd if=/dev/zero of=abc bs=1M count=20
20+0 records in
20+0 records out
20971520 bytes (21 MB) copied, 0.505298 s, 41.5 MB/s
[arekm@tarm ~/test]$ mkfs.xfs -f abc
meta-data=abc                    isize=256    agcount=1, agsize=5120 blks
         =                       sectsz=512   attr=2
data     =                       bsize=4096   blocks=5120, imaxpct=25
         =                       sunit=0      swidth=0 blks
naming   =version 2              bsize=4096   ascii-ci=0
log      =internal log           bsize=4096   blocks=1200, version=2
         =                       sectsz=512   sunit=0 blks, lazy-count=0
realtime =none                   extsz=4096   blocks=0, rtextents=0
[arekm@tarm ~/test]$ xfs_repair -f ./abc
Phase 1 - find and verify superblock...
Only one AG detected - cannot proceed.
zsh: exit 1     xfs_repair -f ./abc
[arekm@tarm ~/test]$ xfs_repair -V
xfs_repair version 2.10.2
[arekm@tarm ~/test]$ uname -a
Linux tarm 2.6.28-rc9 #73 Fri Dec 19 19:47:29 CET 2008 i686 Intel(R)_Pentium
(R)_M_processor_2.00GHz PLD Linux

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