ecryptfs causing lxc to hang

gistfile1.txt

[36116.376907] ecryptfs_decrypt_page: Error attempting to read lower page; rc = [-4]
[36116.376925] ecryptfs_readpage: Error decrypting page; rc = [-4]
[36116.376933] ecryptfs_write: Error getting page at index [3781] from eCryptfs inode mapping; rc = [-4]
[36116.376943] ecryptfs_write_begin: Error on attempt to truncate to (higher) offset [15593472]; rc = [-4]
[36240.390035] INFO: task init:31708 blocked for more than 120 seconds.
[36240.390054] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[36240.390063] init            D ffff8801dffa3b00     0 31708  31706 0x00000000
[36240.390071]  ffff88012977d898 0000000000000246 ffff88012977dfd8 ffff88012977c000
[36240.390079]  0000000000013b00 ffff88016ffe5ea0 ffff88012977dfd8 0000000000013b00
[36240.390087]  ffff8801cf008000 ffff88016ffe5b00 ffff8801dffc90e8 ffff8801dffa3b00
[36240.390094] Call Trace:
[36240.390108]  [<ffffffff8110a3a0>] ? sync_page+0x0/0x50
[36240.390116]  [<ffffffff815da000>] io_schedule+0x70/0xc0
[36240.390120]  [<ffffffff8110a3e0>] sync_page+0x40/0x50
[36240.390125]  [<ffffffff815da5ca>] __wait_on_bit_lock+0x5a/0xc0
[36240.390130]  [<ffffffff8110a377>] __lock_page+0x67/0x70
[36240.390137]  [<ffffffff81087230>] ? wake_bit_function+0x0/0x50
[36240.390143]  [<ffffffff81117cb5>] truncate_inode_pages_range+0x405/0x410
[36240.390150]  [<ffffffff8100779d>] ? xen_force_evtchn_callback+0xd/0x10
[36240.390155]  [<ffffffff8100779d>] ? xen_force_evtchn_callback+0xd/0x10
[36240.390160]  [<ffffffff81117cd5>] truncate_inode_pages+0x15/0x20
[36240.390170]  [<ffffffff8124e4af>] ecryptfs_evict_inode+0x1f/0x40
[36240.390176]  [<ffffffff8117cd34>] evict+0x24/0xc0
[36240.390180]  [<ffffffff8117d967>] iput_final+0x187/0x270
[36240.390185]  [<ffffffff8117da8b>] iput+0x3b/0x50
[36240.390190]  [<ffffffff81178a08>] shrink_dcache_for_umount_subtree+0x228/0x290
[36240.390195]  [<ffffffff8117b3a1>] shrink_dcache_for_umount+0x51/0x90
[36240.390203]  [<ffffffff81165f3c>] generic_shutdown_super+0x2c/0x100
[36240.390207]  [<ffffffff81007e92>] ? check_events+0x12/0x20
[36240.390212]  [<ffffffff811660a6>] kill_anon_super+0x16/0x60
[36240.390217]  [<ffffffff8124d7aa>] ecryptfs_kill_block_super+0x1a/0x50
[36240.390222]  [<ffffffff81007e7f>] ? xen_restore_fl_direct_end+0x0/0x1
[36240.390227]  [<ffffffff81166515>] deactivate_locked_super+0x45/0x70
[36240.390231]  [<ffffffff8116719a>] deactivate_super+0x4a/0x70
[36240.390238]  [<ffffffff81182324>] mntput_no_expire+0xa4/0xf0
[36240.390243]  [<ffffffff8118238f>] mntput+0x1f/0x30
[36240.390247]  [<ffffffff81182c4a>] release_mounts+0x7a/0x90
[36240.390252]  [<ffffffff81182ea6>] put_mnt_ns+0x66/0x80
[36240.390259]  [<ffffffff8108c37f>] free_nsproxy+0x1f/0x90
[36240.390264]  [<ffffffff8108c5c8>] switch_task_namespaces+0x38/0x40
[36240.390268]  [<ffffffff8108c5e0>] exit_task_namespaces+0x10/0x20
[36240.390276]  [<ffffffff810693f3>] exit_notify+0x23/0x180
[36240.390282]  [<ffffffff8101330f>] ? flush_ptrace_hw_breakpoint+0x1f/0x40
[36240.390287]  [<ffffffff81069db3>] do_exit+0x1d3/0x410
[36240.390293]  [<ffffffff81077e76>] ? __dequeue_signal+0x116/0x210
[36240.390298]  [<ffffffff8106a1a8>] do_group_exit+0x58/0xd0
[36240.390302]  [<ffffffff8107a267>] get_signal_to_deliver+0x247/0x410
[36240.390307]  [<ffffffff8100b906>] do_signal+0x56/0x180
[36240.390314]  [<ffffffff8117616d>] ? poll_select_copy_remaining+0xed/0x140
[36240.390318]  [<ffffffff8100bab5>] do_notify_resume+0x65/0x80
[36240.390322]  [<ffffffff8100c290>] int_signal+0x12/0x17