On Wed, 11 May 2016 13:36:23 -0500 Richard Lochner <lochner@xxxxxxxxxx> wrote: > Recently, a scrub returned an unrecoverable error on that file. > Again, the file has not been modified since it was originally copied > and has the time stamp from December. Furthermore, SMART tests (long) > for both drives do not indicate any errors (Current_Pending_Sector or > otherwise). > > I should note that the system does not have ECC memory. > [2027323.705035] BTRFS warning (device sdc1): checksum error at > logical 3037444042752 on dev /dev/sdc1, sector 4988750584, root 259, > inode 1437377, offset 75754369024, length 4096, links 1 (path: > Rick/sda4.img) > [2027323.705056] BTRFS error (device sdc1): bdev /dev/sdc1 errs: wr 0, > rd 13, flush 0, corrupt 3, gen 0 > [2027323.718869] BTRFS error (device sdc1): unable to fixup (regular) > error at logical 3037444042752 on dev /dev/sdc1 I wonder, did you try rebooting the system after getting this? And if you get the same error also after a reboot, check if the sector/offset numbers are the same. That way you could at least rule out any kind of transient (RAM?) errors. -- With respect, Roman
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