On Thu, Jul 19, 2001 at 04:22:07PM -0400, Christian, Chip wrote:
> I found the same thing happening. Tracked it down in our case to using fdisk to
>re-read disk size before mounting. Replaced it with "blockdev --readpt" and the
>problem seems to have gone away. YMMV.
I've now been able to reproduce:
* make a filesystem
* mount it
* export it (nfs)
* mount on remote machine
* lock file (fcntl)
* unexport
* unmount
Then you get the VFS message about self-destruct. Tested with both ext2
and xfs.
The lock is still present in /proc/locks after the umount.
With ext2 I can remount the filesystem successfully, but with XFS I get
the message about duplicate UUIDs and the mount failes. I believe this is a totally
different problem from the one you were experiencing. (and blockdev doesn't help for
me)
I suppose this is a generic kernel bug?
--
Ragnar Kjorstad
Big Storage
> [root@ha2 /root]# mkfs -t xfs -f /dev/sdb1
> meta-data=/dev/sdb1 isize=256 agcount=51, agsize=262144
> blks
> data = bsize=4096 blocks=13305828,
> imaxpct=25
> = sunit=0 swidth=0 blks, unwritten=0
> naming =version 2 bsize=4096
> log =internal log bsize=4096 blocks=1624
> realtime =none extsz=65536 blocks=0, rtextents=0
> [root@ha2 /root]# mount -t xfs /dev/sdb1 /mnt/raid/
> [root@ha2 /root]# umount /mnt/raid/
> [root@ha2 /root]# mount -t xfs /dev/sdb1 /mnt/raid/
> mount: wrong fs type, bad option, bad superblock on /dev/sdb1,
> or too many mounted file systems
>
>
> >From /var/log/messages:
> Jul 19 12:27:15 ha2 kernel: Start mounting filesystem: sd(8,17)
> Jul 19 12:27:16 ha2 kernel: Ending clean XFS mount for filesystem: sd(8,17)
> Jul 19 12:27:19 ha2 kernel: XFS unmount got error 16
> Jul 19 12:27:19 ha2 kernel: linvfs_put_super: vfsp/0xc2ff71e0 left dangling!
> Jul 19 12:27:19 ha2 kernel: VFS: Busy inodes after unmount. Self-destruct in 5
>seconds. Have a nice day...
> Jul 19 12:27:21 ha2 kernel: XFS: Filesystem has duplicate UUID - can't mount
>
>
> This happens on a shared storage cluster with two nodes. The same thing
> happens on both nodes. (I'm only using the device from one device at the
> time)
>
> linux-2.4.5 with XFS patch from 06112001.
>
> After a reboot it works again, and I have not been able to reproduce
> yet. It first happened when I was testing NFS locks, so it could be
> related to that.
>
>
>
> --
> Ragnar Kjorstad
> Big Storage
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