Hi! I was playing with fs without tiering. I was using it for tmp dir for compilation. Next I changed in sys: echo crc64 > options/data_checksum echo crc64 > options/metadata_checksum echo crc64 > options/str_hash After a couple of minutes I got: [ 8372.574346] bcache (dm-10): IO error on dm-10 for checksum error [ 8372.680196] bcache (dm-10): IO error on dm-10 for checksum error [ 8464.361860] bcache (dm-10): IO error on dm-10 for checksum error [ 8466.146966] bcache (dm-10): IO error on dm-10 for checksum error [ 8466.995095] bcache (dm-10): IO error on dm-10 for checksum error [ 8469.199749] bcache (dm-10): IO error on dm-10 for checksum error [ 8469.441408] bcache (dm-10): IO error on dm-10 for checksum error [ 8469.722676] bcache (dm-10): IO error on dm-10 for checksum error [ 8469.827055] bcache (dm-10): IO error on dm-10 for checksum error [ 8470.038869] bcache (dm-10): IO error on dm-10 for checksum error [ 8470.236663] bcache (dm-10): IO error on dm-10 for checksum error [ 8470.427094] bcache (dm-10): IO error on dm-10 for checksum error [ 8472.030519] bcache (dm-10): IO error on dm-10 for checksum error [ 8473.098820] bcache (dm-10): IO error on dm-10 for checksum error [ 8916.491297] bcache (dm-10): IO error on dm-10 for checksum error [ 8916.715057] bcache (dm-10): IO error on dm-10 for checksum error [ 8916.715111] bcache (dm-10): too many IO errors on dm-10, setting filesystem RO [ 8916.733056] bcache (dm-10): IO error on dm-10 for checksum error [ 8916.733125] bcache (dm-10): dm-10 read only [ 8916.733161] bcache (dm-10): too many IO errors on dm-10, setting device RO [ 8916.988286] bcache (dm-10): IO error: read only [ 8916.988545] bcache (dm-10): IO error: read only Is this due to changing str_hash? Marcin -- 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
