Should this error showing up in the log worry me? Nov 2 21:28:12 node-172-16-0-128 kernel: INFO: task ceph-mon:5715 blocked for more than 120 seconds. Nov 2 21:28:12 node-172-16-0-128 kernel: "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. Nov 2 21:28:12 node-172-16-0-128 kernel: ceph-mon D 0000000006bcdc9f 0 5715 1 0x00000000 Nov 2 21:28:12 node-172-16-0-128 kernel: ffff88080d5dfc38 0000000000000086 ffff8807eadec0c0 ffff8804274d60c0 Nov 2 21:28:12 node-172-16-0-128 kernel: ffff88080d5dfc48 0000000000011980 0000000000011980 0000000000011980 Nov 2 21:28:12 node-172-16-0-128 kernel: ffff88080d5dffd8 0000000000011980 0000000000011980 ffff88080d5dffd8 Nov 2 21:28:12 node-172-16-0-128 kernel: Call Trace: Nov 2 21:28:12 node-172-16-0-128 kernel: [<ffffffff81630b5e>] schedule+0x6d/0x83 Nov 2 21:28:12 node-172-16-0-128 kernel: [<ffffffff81630ee2>] schedule_timeout+0x36/0xe3 Nov 2 21:28:12 node-172-16-0-128 kernel: [<ffffffff81630360>] wait_for_common+0xa0/0x105 Nov 2 21:28:12 node-172-16-0-128 kernel: [<ffffffff81048595>] ? try_to_wake_up+0x1ed/0x1ed Nov 2 21:28:12 node-172-16-0-128 kernel: [<ffffffff812462a8>] ? xfs_bwrite+0x4b/0x95 Nov 2 21:28:12 node-172-16-0-128 kernel: [<ffffffff8116ef45>] ? __sync_filesystem+0xa1/0xa1 Nov 2 21:28:12 node-172-16-0-128 kernel: [<ffffffff81630553>] wait_for_completion+0x30/0x46 Nov 2 21:28:12 node-172-16-0-128 kernel: [<ffffffff812457c6>] xfs_buf_iowait+0x61/0xb9 Nov 2 21:28:12 node-172-16-0-128 kernel: [<ffffffff812462a8>] xfs_bwrite+0x4b/0x95 Nov 2 21:28:12 node-172-16-0-128 kernel: [<ffffffff81254c70>] xfs_sync_fsdata+0x4b/0x66 Nov 2 21:28:12 node-172-16-0-128 kernel: [<ffffffff81255138>] xfs_quiesce_data+0x39/0xa3 Nov 2 21:28:12 node-172-16-0-128 kernel: [<ffffffff81252b49>] xfs_fs_sync_fs+0x34/0x71 Nov 2 21:28:12 node-172-16-0-128 kernel: [<ffffffff8116ef1b>] __sync_filesystem+0x77/0xa1 Nov 2 21:28:12 node-172-16-0-128 kernel: [<ffffffff8116ef6e>] sync_one_sb+0x29/0x3f Nov 2 21:28:12 node-172-16-0-128 kernel: [<ffffffff8114620e>] iterate_supers+0x7c/0xe3 Nov 2 21:28:12 node-172-16-0-128 kernel: [<ffffffff8116ee2f>] sync_filesystems+0x2f/0x45 Nov 2 21:28:12 node-172-16-0-128 kernel: [<ffffffff8116f02e>] sys_sync+0x34/0x5a Nov 2 21:28:12 node-172-16-0-128 kernel: [<ffffffff8163326b>] system_call_fastpath+0x16/0x1b -- To unsubscribe from this list: send the line "unsubscribe ceph-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
