Date: Mon, 12 Dec 2011 23:15:33 +0100 From: Raphael Eiselstein <rabe@uugrn.org> To: freebsd-fs@freebsd.org Subject: [XFS][9.0RC2] xfs_repair hangs on umtxn Message-ID: <20111212221533.GB3696@ma.sigsys.de>
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Hi,
I just tried to do some experiments using xfs on FreeBSD 9.0RC2. My
setup is: a plain file /var/cache.img attached as /dev/md0
some things work fine:
fbsd9rc2# mdconfig -l
fbsd9rc2# mdconfig -a -t vnode -f /var/cache.img
md0
fbsd9rc2# kldload xfs
fbsd9rc2# mount -t xfs -o ro /dev/md0 /mnt
fbsd9rc2# df -h /mnt
Filesystem Size Used Avail Capacity Mounted on
/dev/md0 5G 144k 5G 0% /mnt
others don't:
fbsd9rc2# mount -t xfs /dev/md0 /mnt
mount: /dev/md0 : Operation not permitted
fbsd9rc2# /usr/local/sbin/xfs_repair /dev/md0
Phase 1 - find and verify superblock...
Phase 2 - using internal log
- zero log...
- scan filesystem freespace and inode maps...
- found root inode chunk
Phase 3 - for each AG...
- scan and clear agi unlinked lists...
- process known inodes and perform inode discovery...
- agno = 0
^C
... hangs forever in umtxn, even when operating on the flat file:
fbsd9rc2# /usr/local/sbin/xfs_repair -L -f /var/cache.img
Phase 1 - find and verify superblock...
Phase 2 - using internal log
- zero log...
- scan filesystem freespace and inode maps...
- found root inode chunk
Phase 3 - for each AG...
- scan and clear agi unlinked lists...
- process known inodes and perform inode discovery...
- agno = 0
^C
... even without any xfs-support in kernel...
What is xfs_repair requesting from kernel when getting stuck in umtxn?
For me it's not a problem with xfs kernel support but with the
xfs-tools from the ports.
xfsprogs-2.9.4_3 A set of utilities and library to manipulate an xfs filesys
FreeBSD fbsd9rc2 9.0-RC2 FreeBSD 9.0-RC2 #0: Sat Nov 12 18:35:25 UTC
2011 root@farrell.cse.buffalo.edu:/usr/obj/usr/src/sys/GENERIC
amd64
My hardware is a virtual box 4.0.4 OSE running on linux 2.6.38-13-generic
What's going on there?
Any more debugging information?
Best regards
Raphael
--
Raphael Eiselstein <rabe@uugrn.org> http://rabe.uugrn.org/
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