Hi Bcache crashes at boot time making root fs unavailable. Same error occurs when I try to add caching and backing devices manually through /sys/fs/bcache/register. I reproduced the error on ubuntu 17.04 (kernel 4.10.0) and fedora (4.4.67). The cache was in writeback mode. Is it possible to recover my data? dmesg output: [ 45.941155] bcache: register_bdev() registered backing device sda3 [ 46.138238] bcache: error on 471776aa-1b34-4eff-ba7d-509a9554b43d: inconsistent ptrs: mark = 3, level = 0, disabling caching [ 46.139868] CPU: 0 PID: 1495 Comm: bcache-register Tainted: G U [ 46.154267] [<ffffffffc090ba34>] __bch_btree_mark_key.part.23+0x244/0x270 [bcache] [ 46.156051] [<ffffffffc090e3df>] bch_initial_mark_key+0xdf/0xf0 [bcache] [ 46.157744] [<ffffffffc090e44c>] bch_btree_check_recurse+0x5c/0x230 [bcache] [ 46.159432] [<ffffffffc090db2a>] ? bch_btree_node_get+0xba/0x280 [bcache] [ 46.160994] [<ffffffffc090e51f>] bch_btree_check_recurse+0x12f/0x230 [bcache] [ 46.162428] [<ffffffffc0913738>] ? __bch_submit_bbio+0x58/0x60 [bcache] [ 46.163894] [<ffffffffc090e800>] bch_btree_check+0x180/0x1d0 [bcache] [ 46.166862] [<ffffffffc091d5d5>] run_cache_set+0x3b5/0x8e0 [bcache] [ 46.168399] [<ffffffffc091ee47>] register_bcache+0xe07/0x11b0 [bcache] [ 47.182133] bcache: bch_journal_replay() journal replay done, 237858 keys in 207 entries, seq 3687554 [ 47.184437] bcache: bch_cached_dev_attach() Can't attach sda3: shutting down [ 47.186168] bcache: register_cache() registered cache device sdb1 [ 47.187538] bcache: cache_set_free() Cache set 471776aa-1b34-4eff-ba7d-509a9554b43d unregistered -- Igor Pavlenko ipavlenko.mail@xxxxxxxxx -- 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
