Please Cc me on any replies.
I am seeing an error logged when unmounting an LVM snapshot of an XFS partition. Google doesn't give me much.
I have reproduced this error on a different system using a totally different disk sub-system (Mylex eXtremeRAID 3000) - the system below has an Adaptec 2400A.
Details are:
System is XFS on top of LVM on top of hardware RAID.
Software used: Debian: 3.0 (Mostly) Kernel: 2.4.21 Kernel patches: Debian standard kernel patches; XFS 1.3.0 LVM utils: 1.0.4-4 (Debian) XFS utils: 2.5.6-1 (Debian)
Sequence of actions: 1: xfs_freeze -f /home 2: lvcreate -L 1G -s -n home_lv_bak /dev/vg0/home_lv 3: xfs_freeze -u /home 4: mount -t xfs -onouuid,ro,usrquota /dev/vg0/home_lv_bak /mnt/home 5: umount /mnt/home 6: lvremove -f /dev/vg0/home_lv_bak
On step 5 of above, an error is logged:
Logs:
Oct 17 17:23:44 jettero kernel: lvm - lvm_map: ll_rw_blk write for readonly LV /dev/vg0/home_lv_bak
Oct 17 17:23:44 jettero kernel: xfs_force_shutdown(lvm(58,10),0x1) called from line 351 of file xfs_rw.c. Return address = 0xc01fd6aa
Oct 17 17:23:44 jettero kernel: Filesystem "lvm(58,10)": I/O Error Detected. Shutting down filesystem: lvm(58,10)
Oct 17 17:23:44 jettero kernel: Please umount the filesystem, and rectify the problem(s)
There is no oops and machine seems stable enough, though it's only been running a couple of days since I first did this.
Is this anything to worry about? Is this a known problem? Are there any patches to fix it?
Thanks and regards, Ronny Adsetts -- Technical Director Amazing Internet Ltd, London t: +44 20 8607 9535 f: +44 20 8607 9536 w: www.amazinginternet.com
_______________________________________________ linux-lvm mailing list linux-lvm@sistina.com http://lists.sistina.com/mailman/listinfo/linux-lvm read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/
