[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-users] xen-3.2 & barriers
Hi, I'm using xen-3.2 (from Ubuntu 8.04) and have some trouble with i/o barriers. During boot (a paravirt DomU with a more current kernel), blkfront reports: blkfront: xvda: barriers enabled blkfront: xvdb: barriers enabled blkfront: xvdc: barriers enabled blkfront: xvdd: barriers enabled blkfront: xvde: barriers enabled blkfront: xvdf: barriers enabled But as soon as I mount e.g. btrfs or ext4 with barriers support and write to the filesystem, I see: [386046.164004] blkfront: xvdb: write barrier op failed [386046.164017] blkfront: xvdb: barriers disabled [386046.164023] end_request: I/O error, dev xvdb, sector 2100400 [386046.164031] end_request: I/O error, dev xvdb, sector 2100400 [386046.164050] JBD2: wait_on_commit_record: sync failed on xvdb-8 - disabling barriers So, is xen-3.2 perhaps not able to handle barriers? Are later versions able to handle barriers? (I could not find anything about barriers in the wiki) One more word on the setup: the devices for the domU are LVM2 volumes in the Dom0, but I thought LVM could handle barriers, right? For the record, dmesg and .config for both domU and dom0 are on: http://nerdbynature.de/bits/2.6.24-24-xen/ Thanks, Christian. -- BOFH excuse #246: It must have been the lightning storm we had (yesterday) (last week) (last month) _______________________________________________ Xen-users mailing list Xen-users@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-users
|
Lists.xenproject.org is hosted with RackSpace, monitoring our |