Not a fstrim issue per se... Looks like medium to high IO load will cause system to hang. Interesting part of repeating error in kernel's log:
INFO: task md0_resync:27042 blocked for more than 120 seconds. [5354986.546079] Tainted: GF O 3.13.0-35-generic #62-Ubuntu [5354986.546107] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [5354986.546150] md0_resync D ffff88107fc94440 0 27042 2 0x00000000 [5354986.546153] ffff880010bc5bf8 0000000000000046 ffff880010a2c800 ffff880010bc5fd8 [5354986.546156] 0000000000014440 0000000000014440 ffff880010a2c800 ffff880125e7ea80 [5354986.546157] ffff8810230b4438 ffff880010bc5c70 ffff8810230b4420 ffff8810230b43c0 [5354986.546159] Call Trace: [5354986.546165] [<ffffffff81722749>] schedule+0x29/0x70 [5354986.546176] [<ffffffffa0070437>] sync_request+0x227/0xb30 [raid1] [5354986.546180] [<ffffffff810aafd0>] ? prepare_to_wait_event+0x100/0x100 [5354986.546184] [<ffffffff815ab1a3>] md_do_sync+0x9a3/0xe00 [5354986.546186] [<ffffffff815a7d48>] md_thread+0x118/0x130 [5354986.546188] [<ffffffff815a7c30>] ? mddev_unlock+0xe0/0xe0 [5354986.546190] [<ffffffff8108b4a2>] kthread+0xd2/0xf0 [5354986.546191] [<ffffffff8108b3d0>] ? kthread_create_on_node+0x1c0/0x1c0 [5354986.546193] [<ffffffff8172ecbc>] ret_from_fork+0x7c/0xb0 [5354986.546195] [<ffffffff8108b3d0>] ? kthread_create_on_node+0x1c0/0x1c0 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1406290 Title: [fstrim] Server unavailable every sunday - needs hw reboot To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1406290/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
