If I am not mistaking you have to register the CUID of the chache device. Not the block device. (Or it has been fixed.) Killian De Volder On 05-08-15 14:52, Георгий Стариков wrote: > Hello, > bcache worked fine until i rebooted server. Now, bcache wont register > cache device. Backing registered successfully. > Is there a way to fix it? > Configuration was : cache - sdc, backing - md0 (md raid6) > > Details: > > # echo /dev/sdc > /sys/fs/bcache/register > > dmesg > [ 1004.580163] bcache: prio_read() bad csum reading priorities > [ 1004.580167] bcache: prio_read() bad magic reading priorities > [ 1004.580497] attempt to access beyond end of device > [ 1004.580499] sdc: rw=48, want=12989067124903043072, limit=468862128 > [ 1004.580501] bcache: error on 4ca0fbc9-d20b-4a3d-bbd1-38d9a5810c27: > accessing priorities, disabling caching > [ 1004.582053] bcache: prio_read() bad csum reading priorities > [ 1004.582055] bcache: prio_read() bad magic reading priorities > [ 1004.582395] attempt to access beyond end of device > [ 1004.582397] sdc: rw=48, want=12989067124903043072, limit=468862128 > [ 1004.583942] bcache: prio_read() bad csum reading priorities > [ 1004.583944] bcache: prio_read() bad magic reading priorities > [ 1004.584997] bcache: register_cache() registered cache device sdc > [ 1004.585504] bcache: cache_set_free() Cache set > 4ca0fbc9-d20b-4a3d-bbd1-38d9a5810c27 unregistered > > # bcache-super-show /dev/sdc > sb.magic ok > sb.first_sector 8 [match] > sb.csum 44826230D24195E8 [match] > sb.version 3 [cache device] > > dev.label (empty) > dev.uuid cd4241f5-1271-4a1a-a530-58d3ccc2f97e > dev.sectors_per_block 1 > dev.sectors_per_bucket 1024 > dev.cache.first_sector 1024 > dev.cache.cache_sectors 468860928 > dev.cache.total_sectors 468861952 > dev.cache.ordered yes > dev.cache.discard yes > dev.cache.pos 0 > dev.cache.replacement 0 [lru] > > cset.uuid 4ca0fbc9-d20b-4a3d-bbd1-38d9a5810c27 > > # bcache-super-show /dev/md0 > sb.magic ok > sb.first_sector 8 [match] > sb.csum F3A7C3593D24C25A [match] > sb.version 1 [backing device] > > dev.label (empty) > dev.uuid 80bdbcce-f1e1-4af9-a2bd-e4be24067fc5 > dev.sectors_per_block 1 > dev.sectors_per_bucket 1024 > dev.data.first_sector 16 > dev.data.cache_mode 1 [writeback] > dev.data.cache_state 1 [clean] > > cset.uuid 4ca0fbc9-d20b-4a3d-bbd1-38d9a5810c27 > -- > To unsubscribe from this list: send the line "unsubscribe linux-bcache" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html > -- To unsubscribe from this list: send the line "unsubscribe linux-bcache" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
