http://bugzilla.suse.com/show_bug.cgi?id=1172566 Bug ID: 1172566 Summary: problems with LVM cache Classification: openSUSE Product: openSUSE Tumbleweed Version: Current Hardware: Other OS: Other Status: NEW Severity: Normal Priority: P5 - None Component: Basesystem Assignee: screening-team-bugs@suse.de Reporter: aschnell@suse.com QA Contact: qa-bugs@suse.de Found By: --- Blocker: --- I was experimenting with LVM cache and somehow managed to trigger a bug. Here is the command that failed: # lvconvert --type cache --cachevol giant-cache --cachemode writeback --chunksize 192 system/giant Erase all existing data on system/giant-cache? [y/n]: y device-mapper: resume ioctl on (254:3) failed: No space left on device Unable to resume system-giant (254:3). Problem reactivating logical volume system/giant. Releasing activation in critical section. libdevmapper exiting with 1 device(s) still suspended In dmesg this triggered: [1387212.915349] device-mapper: space map metadata: unable to allocate new metadata block [1387212.915352] device-mapper: cache: 254:3: could not resize cache metadata [1387212.915354] device-mapper: cache: 254:3: metadata operation 'dm_cache_resize' failed: error = -28 [1387212.915356] device-mapper: cache: 254:3: aborting current metadata transaction [1387212.940222] device-mapper: cache: 254:3: switching cache to read-only mode [1387212.940227] device-mapper: table: 254:3: cache: preresume failed, error = -28 [1387243.006881] device-mapper: cache: 254:3: unable to switch cache to write mode until repaired. [1387243.006883] device-mapper: cache: 254:3: switching cache to read-only mode [1387243.021274] device-mapper: table: 254:3: cache: Unable to get write access to metadata, please check/repair metadata. [1387243.021277] device-mapper: ioctl: error adding target to table Now lvs reports: # lvs -a LV VG Attr LSize Pool Origin Data% Meta% Move Log Cpy%Sync Convert abuild system -wi-ao---- 50.00g arvin system -wi-ao---- 100.00g giant system Cwi-CoC-M- 512.00g [giant-cache] [giant_corig] 0.00 0.68 0.00 [giant-cache] system Cwi-aoC--- 128.00g [giant_corig] system owi-aoC--- 512.00g root system -wi-ao---- 50.00g swap system -wi-ao---- 2.00g As can be seen for giant a check is needed (although 'C' is not thin-pools). Unmounting the filesystem does not work (hangs). -- You are receiving this mail because: You are on the CC list for the bug.