What an Amazon EC2 outage looks like to a guest system. https://t.co/lkgm97OZ

gistfile1.txt

INFO: task kjournald:252 blocked for more than 120 seconds.
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
kjournald     D ffff880001004460     0   252      7           274   243 (L-TLB)
 ffff8800674c5cf0  0000000000000246  ffff88006901c040  000007000000015c 
 000000000000000a  ffff880069b197a0  ffffffff80502b80  0000000000000fc8 
 ffff880069b19988  ffffffff80263929 
Call Trace:
 [<ffffffff80263929>] _spin_lock_irqsave+0x9/0x14
 [<ffffffff8026f1df>] do_gettimeofday+0x1c1/0x1dc
 [<ffffffff80215dd8>] sync_buffer+0x0/0x3f
 [<ffffffff8025c836>] getnstimeofday+0x10/0x29
 [<ffffffff80215dd8>] sync_buffer+0x0/0x3f
 [<ffffffff80262605>] io_schedule+0x3f/0x67
 [<ffffffff80215e13>] sync_buffer+0x3b/0x3f
 [<ffffffff80262831>] __wait_on_bit+0x40/0x6e
 [<ffffffff80215dd8>] sync_buffer+0x0/0x3f
 [<ffffffff802628cb>] out_of_line_wait_on_bit+0x6c/0x78
 [<ffffffff8029dc6b>] wake_bit_function+0x0/0x23
 [<ffffffff88033a13>] :jbd:journal_commit_transaction+0x559/0x10c6
 [<ffffffff80263929>] _spin_lock_irqsave+0x9/0x14
 [<ffffffff8023f468>] lock_timer_base+0x1b/0x3c
 [<ffffffff8024cbde>] try_to_del_timer_sync+0x7f/0x88
 [<ffffffff88037673>] :jbd:kjournald+0xc1/0x213
 [<ffffffff8029dc3d>] autoremove_wake_function+0x0/0x2e
 [<ffffffff8029da25>] keventd_create_kthread+0x0/0xc4
 [<ffffffff880375b2>] :jbd:kjournald+0x0/0x213
 [<ffffffff8029da25>] keventd_create_kthread+0x0/0xc4
 [<ffffffff802338c6>] kthread+0xfe/0x132
 [<ffffffff8025fb2c>] child_rip+0xa/0x12
 [<ffffffff8029da25>] keventd_create_kthread+0x0/0xc4
 [<ffffffff802337c8>] kthread+0x0/0x132
 [<ffffffff8025fb22>] child_rip+0x0/0x12