Comment 4 for bug 1259047

This looks like a kernel issue trying to read the drive:

Dec 8 21:26:21 ubuntu kernel: [ 6113.809465] EXT2-fs (sda3): error: can't find an ext2 filesystem on dev sda3.
Dec 8 21:26:21 ubuntu kernel: [ 6113.810214] XFS (sda3): bad magic number
Dec 8 21:26:21 ubuntu kernel: [ 6113.810218] ffff8803c80a9000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
Dec 8 21:26:21 ubuntu kernel: [ 6113.810220] ffff8803c80a9010: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
Dec 8 21:26:21 ubuntu kernel: [ 6113.810221] ffff8803c80a9020: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
Dec 8 21:26:21 ubuntu kernel: [ 6113.810223] ffff8803c80a9030: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
Dec 8 21:26:21 ubuntu kernel: [ 6113.810226] XFS (sda3): Internal error xfs_sb_read_verify at line 780 of file /build/buildd/linux-3.11.0/fs/xfs/xfs_mount.c. Caller 0xffffffffa0849b75
Dec 8 21:26:21 ubuntu kernel: [ 6113.810226]
Dec 8 21:26:21 ubuntu kernel: [ 6113.810229] CPU: 7 PID: 9416 Comm: kworker/7:1H Tainted: GF 3.11.0-12-generic #19-Ubuntu
Dec 8 21:26:21 ubuntu kernel: [ 6113.810231] Hardware name: Dell Inc. XPS 8700/0KWVT8, BIOS A01 05/16/2013
Dec 8 21:26:21 ubuntu kernel: [ 6113.810249] Workqueue: xfslogd xfs_buf_iodone_work [xfs]
Dec 8 21:26:21 ubuntu kernel: [ 6113.810251] 0000000000000001 ffff8803c9a81d68 ffffffff816e547a ffff88040f338800
Dec 8 21:26:21 ubuntu kernel: [ 6113.810255] ffff8803c9a81d80 ffffffffa084c25b ffffffffa0849b75 ffff8803c9a81db8
Dec 8 21:26:21 ubuntu kernel: [ 6113.810258] ffffffffa084c2b5 0000030c00000000 ffff880410a21200 0000000000000016
Dec 8 21:26:21 ubuntu kernel: [ 6113.810261] Call Trace:
Dec 8 21:26:21 ubuntu kernel: [ 6113.810267] [<ffffffff816e547a>] dump_stack+0x45/0x56
Dec 8 21:26:21 ubuntu kernel: [ 6113.810279] [<ffffffffa084c25b>] xfs_error_report+0x3b/0x40 [xfs]
Dec 8 21:26:21 ubuntu kernel: [ 6113.810289] [<ffffffffa0849b75>] ? xfs_buf_iodone_work+0x85/0xf0 [xfs]
Dec 8 21:26:21 ubuntu kernel: [ 6113.810300] [<ffffffffa084c2b5>] xfs_corruption_error+0x55/0x80 [xfs]
Dec 8 21:26:21 ubuntu kernel: [ 6113.810319] [<ffffffffa089e413>] xfs_sb_read_verify+0x113/0x130 [xfs]
Dec 8 21:26:21 ubuntu kernel: [ 6113.810329] [<ffffffffa0849b75>] ? xfs_buf_iodone_work+0x85/0xf0 [xfs]
Dec 8 21:26:21 ubuntu kernel: [ 6113.810334] [<ffffffff81091420>] ? finish_task_switch+0x50/0xf0
Dec 8 21:26:21 ubuntu kernel: [ 6113.810343] [<ffffffffa0849b75>] xfs_buf_iodone_work+0x85/0xf0 [xfs]
Dec 8 21:26:21 ubuntu kernel: [ 6113.810347] [<ffffffff8107d05c>] process_one_work+0x17c/0x430
Dec 8 21:26:21 ubuntu kernel: [ 6113.810350] [<ffffffff8107dcac>] worker_thread+0x11c/0x3c0
Dec 8 21:26:21 ubuntu kernel: [ 6113.810353] [<ffffffff8107db90>] ? manage_workers.isra.24+0x2a0/0x2a0
Dec 8 21:26:21 ubuntu kernel: [ 6113.810357] [<ffffffff810847b0>] kthread+0xc0/0xd0
Dec 8 21:26:21 ubuntu kernel: [ 6113.810360] [<ffffffff810846f0>] ? kthread_create_on_node+0x120/0x120
Dec 8 21:26:21 ubuntu kernel: [ 6113.810363] [<ffffffff816f516c>] ret_from_fork+0x7c/0xb0
Dec 8 21:26:21 ubuntu kernel: [ 6113.810366] [<ffffffff810846f0>] ? kthread_create_on_node+0x120/0x120
Dec 8 21:26:21 ubuntu kernel: [ 6113.810368] XFS (sda3): Corruption detected. Unmount and run xfs_repair
Dec 8 21:26:21 ubuntu kernel: [ 6113.810377] XFS (sda3): SB validate failed with error 22.
Dec 8 21:26:21 ubuntu kernel: [ 6113.810728] REISERFS warning (device sda3): sh-2021 reiserfs_fill_super: can not find reiserfs on sda3
Dec 8 21:26:21 ubuntu kernel: [ 6113.810886] FAT-fs (sda3): bogus number of reserved sectors
Dec 8 21:26:21 ubuntu kernel: [ 6113.810889] FAT-fs (sda3): Can't find a valid FAT filesystem