Hello, Scrub found some checksum errors on my RAID6, errors are said to be fixed but every scrub results in identical errors. Any ideas why this is happening? The HDD seems to be working OK, no IO errors, no SMART errors and it passed SMART long-test. Latest scrub was run with 4.6.2 kernel & 4.6 btrfs progs. Earlier runs where done with 4.5.x & 4.6 with up to date btrfs progs (at the time). This is after 3rd attempt (previous errors are identical): BTRFS warning (device dm-6): checksum error at logical 10994876289024 on dev /dev/mapper/crypt_sdk1, sector 3131104392, root 8265, inode 138347, offset 16846848, length 4096, links 1 (path: path/file1) BTRFS warning (device dm-6): checksum error at logical 10994876289024 on dev /dev/mapper/crypt_sdk1, sector 3131104392, root 8260, inode 138347, offset 16846848, length 4096, links 1 (path: path/file1) BTRFS warning (device dm-6): checksum error at logical 10994876289024 on dev /dev/mapper/crypt_sdk1, sector 3131104392, root 5, inode 138347, offset 16846848, length 4096, links 1 (path: path/file1) BTRFS error (device dm-6): bdev /dev/mapper/crypt_sdk1 errs: wr 0, rd 0, flush 0, corrupt 11, gen 0 BTRFS error (device dm-6): fixed up error at logical 10994876289024 on dev /dev/mapper/crypt_sdk1 BTRFS warning (device dm-6): checksum error at logical 10994876293120 on dev /dev/mapper/crypt_sdk1, sector 3131104400, root 8265, inode 138347, offset 16850944, length 4096, links 1 (path: path/file1) BTRFS warning (device dm-6): checksum error at logical 10994876293120 on dev /dev/mapper/crypt_sdk1, sector 3131104400, root 8260, inode 138347, offset 16850944, length 4096, links 1 (path: path/file1) BTRFS warning (device dm-6): checksum error at logical 10994876293120 on dev /dev/mapper/crypt_sdk1, sector 3131104400, root 5, inode 138347, offset 16850944, length 4096, links 1 (path: path/file1) BTRFS error (device dm-6): bdev /dev/mapper/crypt_sdk1 errs: wr 0, rd 0, flush 0, corrupt 12, gen 0 BTRFS error (device dm-6): fixed up error at logical 10994876293120 on dev /dev/mapper/crypt_sdk1 BTRFS warning (device dm-6): checksum error at logical 10994876297216 on dev /dev/mapper/crypt_sdk1, sector 3131104408, root 8265, inode 138347, offset 16855040, length 4096, links 1 (path: path/file1) BTRFS warning (device dm-6): checksum error at logical 10994876297216 on dev /dev/mapper/crypt_sdk1, sector 3131104408, root 8260, inode 138347, offset 16855040, length 4096, links 1 (path: path/file1) BTRFS warning (device dm-6): checksum error at logical 10994876297216 on dev /dev/mapper/crypt_sdk1, sector 3131104408, root 5, inode 138347, offset 16855040, length 4096, links 1 (path: path/file1) BTRFS error (device dm-6): bdev /dev/mapper/crypt_sdk1 errs: wr 0, rd 0, flush 0, corrupt 13, gen 0 BTRFS error (device dm-6): fixed up error at logical 10994876297216 on dev /dev/mapper/crypt_sdk1 BTRFS warning (device dm-6): checksum error at logical 10994876301312 on dev /dev/mapper/crypt_sdk1, sector 3131104416, root 8265, inode 138347, offset 16859136, length 4096, links 1 (path: path/file1) BTRFS warning (device dm-6): checksum error at logical 10994876301312 on dev /dev/mapper/crypt_sdk1, sector 3131104416, root 8260, inode 138347, offset 16859136, length 4096, links 1 (path: path/file1) BTRFS warning (device dm-6): checksum error at logical 10994876301312 on dev /dev/mapper/crypt_sdk1, sector 3131104416, root 5, inode 138347, offset 16859136, length 4096, links 1 (path: path/file1) BTRFS error (device dm-6): bdev /dev/mapper/crypt_sdk1 errs: wr 0, rd 0, flush 0, corrupt 14, gen 0 BTRFS error (device dm-6): fixed up error at logical 10994876301312 on dev /dev/mapper/crypt_sdk1 BTRFS warning (device dm-6): checksum error at logical 10994876305408 on dev /dev/mapper/crypt_sdk1, sector 3131104424, root 8265, inode 138347, offset 16863232, length 4096, links 1 (path: path/file1) BTRFS warning (device dm-6): checksum error at logical 10994876305408 on dev /dev/mapper/crypt_sdk1, sector 3131104424, root 8260, inode 138347, offset 16863232, length 4096, links 1 (path: path/file1) BTRFS warning (device dm-6): checksum error at logical 10994876305408 on dev /dev/mapper/crypt_sdk1, sector 3131104424, root 5, inode 138347, offset 16863232, length 4096, links 1 (path: path/file1) BTRFS error (device dm-6): bdev /dev/mapper/crypt_sdk1 errs: wr 0, rd 0, flush 0, corrupt 15, gen 0 BTRFS error (device dm-6): fixed up error at logical 10994876305408 on dev /dev/mapper/crypt_sdk1 btrfs dev stats /storage/ [/dev/mapper/crypt_sde1].write_io_errs 0 [/dev/mapper/crypt_sde1].read_io_errs 0 [/dev/mapper/crypt_sde1].flush_io_errs 0 [/dev/mapper/crypt_sde1].corruption_errs 0 [/dev/mapper/crypt_sde1].generation_errs 0 [/dev/mapper/crypt_sdb1].write_io_errs 0 [/dev/mapper/crypt_sdb1].read_io_errs 0 [/dev/mapper/crypt_sdb1].flush_io_errs 0 [/dev/mapper/crypt_sdb1].corruption_errs 0 [/dev/mapper/crypt_sdb1].generation_errs 0 [/dev/mapper/crypt_sdc1].write_io_errs 0 [/dev/mapper/crypt_sdc1].read_io_errs 0 [/dev/mapper/crypt_sdc1].flush_io_errs 0 [/dev/mapper/crypt_sdc1].corruption_errs 0 [/dev/mapper/crypt_sdc1].generation_errs 0 [/dev/mapper/crypt_sdk1].write_io_errs 0 [/dev/mapper/crypt_sdk1].read_io_errs 0 [/dev/mapper/crypt_sdk1].flush_io_errs 0 [/dev/mapper/crypt_sdk1].corruption_errs 15 [/dev/mapper/crypt_sdk1].generation_errs 0 [/dev/mapper/crypt_sdd1].write_io_errs 0 [/dev/mapper/crypt_sdd1].read_io_errs 0 [/dev/mapper/crypt_sdd1].flush_io_errs 0 [/dev/mapper/crypt_sdd1].corruption_errs 0 [/dev/mapper/crypt_sdd1].generation_errs 0 [/dev/mapper/crypt_sdf1].write_io_errs 0 [/dev/mapper/crypt_sdf1].read_io_errs 0 [/dev/mapper/crypt_sdf1].flush_io_errs 0 [/dev/mapper/crypt_sdf1].corruption_errs 0 [/dev/mapper/crypt_sdf1].generation_errs 0 /dev/mapper/crypt_sde1 on /storage type btrfs (rw,noatime,compress=lzo,noacl,space_cache,subvolid=5,subvol=/) -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
