Eric Sandeen wrote:
If you are able to re-mkfs the filesystem, can you try a mkfs
immediately followed by a repair, to see if the mkfs worked properly?
I've been talking to someone else on 2.6.3 + xfs + lbd + md where mkfs
wasn't even able to get bits down to the disk properly. This is just
userspace; if we can't do writes and have md put them in the right
place, we're in trouble. stracing mkfs, I see pwrites of superblocks to
locations that never seem to make it to disk... I'm tempted to blame
md, but I need to try to recreate here.
Anyway, can you try mkfs.xfs; xfs_repair?
I did a clean run of the mkfs.xfs and two runs of xfs_repair.
It seems that the xfs_repair doesn't like the filesystem that much.
I attached the output and strace.
I was wondering if using the other LVM methods would help here? I will
give the dm stuff a try and let you know, if it's just dependend on md.
On Thu, 2004-02-26 at 11:58, Frank Hellmann wrote:
I just upgraded one of our linux boxes (Redhat 9 + usual 2.6 and glibc
patches) to kernel 2.6.3 and wanted to try out the large block device
support. First attemp, beware... :-)
I setup a md0 device consisting of four ~1.5TB large devices with mkraid
/dev/md0 and a simple /etc/raidtab.
I had some issues makeing the filesystem on /dev/md0. mkfs.xfs
complained about a non-clean md0 device and would not let me do anything
Upgrading to xfs-progs 2.6.3 and mdadm 1.5 tools didn't change that.
First doing an mkfs.ext3, mounting and unmounting the device seems to
cure that. At least after that I could mkfs.xfs it.
Unfortunatly restoring (tar not xfsrestore) some demo data back onto the
drive I was getting a lot of xfs/kernel messages into the logfile. The
tar process stopped with errors after about 200M of restore and the last
files got corrupted. pdflush has high activity (~95%).
xfs_repair reports beside a lot of other problems a couple of:
primary/secondary superblock XX conflict - AG superblock geometry info
conflicts with filesystem geometry
which really makes me wonder, whats going on... See the attached files
for further info. Unfortunatly I currently don't have any debugging
tools on that machine...
Everything is peachy (with LBD), if I stay below the usual 2TB limits
with the 2.6.3 kernel.
Am I missing anything for XFS LBD support? Any ideas?
Frank Hellmann Optical Art GmbH Waterloohain 7a
Digital Cinema http://www.opticalart.de 22769 Hamburg
frank@xxxxxxxxxxxxx Tel: ++49 40 5111051 Fax: ++49 40 43169199
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