[dm-devel] dm-cache refusing to come up again after a crash
Steinar H. Gunderson
sgunderson at bigfoot.com
Fri Dec 6 15:49:14 UTC 2013
Linux (3.12.0-rc5) hung, and on boot, I can't get the dm-cache up again:
(initramfs) echo 0 23440891904 cache /dev/cache/metadata /dev/cache/blocks /dev/md1 1024 1 writeback
default 4 random_threshold 8 sequential_threshold 512 | dmsetup create cache -u CACHE-0a8bb56fc873c195bf7117af925c7f08
device-mapper: reload ioctl on cache failed: Input/output error
Command failed
The kernel complains with
[ 639.189756] attempt to access beyond end of device
[ 639.189761] dm-0: rw=0, want=18445688752888627208, limit=1048576
[ 639.189764] device-mapper: transaction manager: couldn't open metadata space map
[ 639.189767] device-mapper: cache metadata: tm_open_with_sm failed
[ 639.283130] device-mapper: table: 254:2: cache: Error creating metadata object
[ 639.283134] device-mapper: ioctl: error adding target to table
Is there anything I can do short of nuking the metadata partition
and taking the loss of whatever wasn't written back?
/* Steinar */
--
Homepage: http://www.sesse.net/
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