On Fri, 20 Jul 2018, Alexander Wetzel wrote: > [ 979.223808] BTRFS: error (device sdc2) in __btrfs_cow_block:1080: errno=-5 > IO failure Are there no other messages in syslog? "IO failure" (from fs/btrfs/super.c:75) sounds like a problem with the underlying device. Maybe try w/o the "discard" mount option? Does "cat /dev/sdc2 > /dev/null" complete w/o errors? C. -- BOFH excuse #184: loop found in loop in redundant loopback -- 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
