[pon jan  5 20:02:53 2015] INFO: task jbd2/dm-1-8:307 blocked for more than 120 seconds.
[pon jan  5 20:02:53 2015]       Tainted: G           OE 3.16.0-28-generic #38-Ubuntu
[pon jan  5 20:02:53 2015] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[pon jan  5 20:02:53 2015] jbd2/dm-1-8     D ffff88013ed93840     0   307      2 0x00000000
[pon jan  5 20:02:53 2015]  ffff88003537fbd8 0000000000000046 ffff880034d165e0 0000000000013840
[pon jan  5 20:02:53 2015]  ffff88003537ffd8 0000000000013840 ffff880034d165e0 ffff88013ed94140
[pon jan  5 20:02:53 2015]  ffff88013efcf958 0000000000000002 ffffffff81213740 ffff88003537fc50
[pon jan  5 20:02:53 2015] Call Trace:
[pon jan  5 20:02:53 2015]  [<ffffffff81213740>] ? generic_block_bmap+0x50/0x50
[pon jan  5 20:02:53 2015]  [<ffffffff817853af>] io_schedule+0xaf/0x150
[pon jan  5 20:02:53 2015]  [<ffffffff8121374e>] sleep_on_buffer+0xe/0x20
[pon jan  5 20:02:53 2015]  [<ffffffff81785874>] __wait_on_bit+0x64/0x90
[pon jan  5 20:02:53 2015]  [<ffffffff81213740>] ? generic_block_bmap+0x50/0x50
[pon jan  5 20:02:53 2015]  [<ffffffff81785917>] out_of_line_wait_on_bit+0x77/0x90
[pon jan  5 20:02:53 2015]  [<ffffffff810b9750>] ? autoremove_wake_function+0x40/0x40
[pon jan  5 20:02:53 2015]  [<ffffffff81214aca>] __wait_on_buffer+0x2a/0x30
[pon jan  5 20:02:53 2015]  [<ffffffff812af5f7>] jbd2_journal_commit_transaction+0x1407/0x1810
[pon jan  5 20:02:53 2015]  [<ffffffff812b3286>] kjournald2+0xd6/0x270
[pon jan  5 20:02:53 2015]  [<ffffffff810b9710>] ? prepare_to_wait_event+0x100/0x100
[pon jan  5 20:02:53 2015]  [<ffffffff812b31b0>] ? commit_timeout+0x10/0x10
[pon jan  5 20:02:53 2015]  [<ffffffff81094c6b>] kthread+0xdb/0x100
[pon jan  5 20:02:53 2015]  [<ffffffff81094b90>] ? kthread_create_on_node+0x1c0/0x1c0
[pon jan  5 20:02:53 2015]  [<ffffffff81789e3c>] ret_from_fork+0x7c/0xb0
[pon jan  5 20:02:53 2015]  [<ffffffff81094b90>] ? kthread_create_on_node+0x1c0/0x1c0
[pon jan  5 20:02:53 2015] INFO: task plugin-containe:15460 blocked for more than 120 seconds.
[pon jan  5 20:02:53 2015]       Tainted: G           OE 3.16.0-28-generic #38-Ubuntu
[pon jan  5 20:02:53 2015] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[pon jan  5 20:02:53 2015] plugin-containe D ffff88013ec13840     0 15460  12526 0x00000000
[pon jan  5 20:02:53 2015]  ffff880022ec7aa8 0000000000000086 ffff880012569e90 0000000000013840
[pon jan  5 20:02:53 2015]  ffff880022ec7fd8 0000000000013840 ffff880012569e90 ffff88013ec14140
[pon jan  5 20:02:53 2015]  ffff88013efce218 0000000000000002 ffffffff81213740 ffff880022ec7b20
[pon jan  5 20:02:53 2015] Call Trace:
[pon jan  5 20:02:53 2015]  [<ffffffff81213740>] ? generic_block_bmap+0x50/0x50
[pon jan  5 20:02:53 2015]  [<ffffffff817853af>] io_schedule+0xaf/0x150
[pon jan  5 20:02:53 2015]  [<ffffffff8121374e>] sleep_on_buffer+0xe/0x20
[pon jan  5 20:02:53 2015]  [<ffffffff81785874>] __wait_on_bit+0x64/0x90
[pon jan  5 20:02:53 2015]  [<ffffffff81213740>] ? generic_block_bmap+0x50/0x50
[pon jan  5 20:02:53 2015]  [<ffffffff81785917>] out_of_line_wait_on_bit+0x77/0x90
[pon jan  5 20:02:53 2015]  [<ffffffff810b9750>] ? autoremove_wake_function+0x40/0x40
[pon jan  5 20:02:53 2015]  [<ffffffff81216674>] __block_write_begin+0x244/0x450
[pon jan  5 20:02:53 2015]  [<ffffffff81263240>] ? ext4_da_invalidatepage+0x2f0/0x2f0
[pon jan  5 20:02:53 2015]  [<ffffffff81269398>] ext4_da_write_begin+0x148/0x300
[pon jan  5 20:02:53 2015]  [<ffffffff811695ba>] generic_perform_write+0xba/0x1b0
[pon jan  5 20:02:53 2015]  [<ffffffff8116b8c0>] __generic_file_write_iter+0x1e0/0x390
[pon jan  5 20:02:53 2015]  [<ffffffff8125e9a0>] ext4_file_write_iter+0x100/0x3e0
[pon jan  5 20:02:53 2015]  [<ffffffff8116b4ec>] ? generic_file_read_iter+0x53c/0x5b0
[pon jan  5 20:02:53 2015]  [<ffffffff811e08d1>] new_sync_write+0x81/0xb0
[pon jan  5 20:02:53 2015]  [<ffffffff811e10b7>] vfs_write+0xb7/0x1f0
[pon jan  5 20:02:53 2015]  [<ffffffff811e0fa4>] ? vfs_read+0x124/0x180
[pon jan  5 20:02:53 2015]  [<ffffffff811e1c66>] SyS_write+0x46/0xb0
[pon jan  5 20:02:53 2015]  [<ffffffff81789eed>] system_call_fastpath+0x1a/0x1f