I got these error messages on the Wolk 4.9s kernel, but not on XFS CVS kernels (or vanilla linux with XFS patches applied). This is a somewhat random guess, but you might try to upgrade LVM to 1.0.7, following the LVM how-to, and see if the problem persists. >-----Original Message----- >From: Ronny Adsetts [mailto:ronny.adsetts@amazinginternet.com] >Sent: Friday, October 17, 2003 12:39 >To: linux-xfs@oss.sgi.com; linux-lvm@sistina.com >Subject: Error on unmounting XFS LVM snapshot > > >Hi, > >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/
