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[Bug 1435073] [NEW] T550 crashed during attempted suspend: e1000e hardware error

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Public bug reported:

Running X. Nothing exciting.
Locked the screen and shut the lid.
Red LED took longer than normal to turn "off".
Then it went off, and didn't blink like in sleep mode.
Damnit, it's crashed, hasn't it.
Reboot, read log files. We got something this time. Here it is.

Mar 22 13:36:41 raven NetworkManager[1894]: <info> NetworkManager state is now ASLEEP
Mar 22 13:36:42 raven NetworkManager[1894]: <info> (cdc-wdm0): device state change: unavailable -> unmanaged (reason 'sleeping') [20 10 37]
Mar 22 13:36:42 raven dbus[1842]: [system] Activating via systemd: service name='org.freedesktop.nm_dispatcher' unit='dbus-org.freedesktop.nm-dispatcher.service'
Mar 22 13:36:42 raven systemd[1]: Starting Network Manager Script Dispatcher Service...
Mar 22 13:36:42 raven dbus[1842]: [system] Successfully activated service 'org.freedesktop.nm_dispatcher'
Mar 22 13:36:42 raven nm-dispatcher: Dispatching action 'down' for wlan0
Mar 22 13:36:42 raven systemd[1]: Started Network Manager Script Dispatcher Service.
Mar 22 13:36:43 raven systemd[1]: Reached target Sleep.
Mar 22 13:36:43 raven systemd[1]: Starting Sleep.
Mar 22 13:36:43 raven systemd[1]: Starting Suspend...
Mar 22 13:36:43 raven systemd-sleep[26355]: Suspending system...
Mar 22 13:36:43 raven NetworkManager[1894]: <info> wake requested (sleeping: yes  enabled: yes)
Mar 22 13:36:43 raven NetworkManager[1894]: <info> waking up...
Mar 22 13:36:43 raven NetworkManager[1894]: <info> (eth0): device state change: unmanaged -> unavailable (reason 'managed') [10 20 2]
Mar 22 13:37:03 raven kernel: [ 2906.011617] PM: Syncing filesystems ... done.
Mar 22 13:37:03 raven kernel: [ 2906.114788] PM: Preparing system for mem sleep
Mar 22 13:37:03 raven kernel: [ 2906.115270] Freezing user space processes ... 
Mar 22 13:37:03 raven kernel: [ 2915.266916] e1000e 0000:00:19.0 eth0: Hardware Error
Mar 22 13:37:03 raven kernel: [ 2916.261811] e1000e 0000:00:19.0: EEE advertisement - unable to acquire PHY
Mar 22 13:37:03 raven kernel: [ 2926.137012] 
Mar 22 13:37:03 raven kernel: [ 2926.137018] Freezing of tasks failed after 20.010 seconds (1 tasks refusing to freeze, wq_busy=0):
Mar 22 13:37:03 raven kernel: [ 2926.137038] NetworkManager  R  running task        0  1894      1 0x00000004
Mar 22 13:37:03 raven kernel: [ 2926.137043]  ffffffffffffff10 ffffffff8101e1bc 0000000000000010 0000000000000206
Mar 22 13:37:03 raven kernel: [ 2926.137047]  ffff880417253480 0000000000000018 ffff8804172534a8 ffffffff813c151b
Mar 22 13:37:03 raven kernel: [ 2926.137051]  0000000000000001 ffff880414c3ce38 0000000000000000 ffff880417253530
Mar 22 13:37:03 raven kernel: [ 2926.137055] Call Trace:
Mar 22 13:37:03 raven kernel: [ 2926.137064]  [<ffffffff8101e1bc>] ? native_read_tsc+0xc/0x20
Mar 22 13:37:03 raven kernel: [ 2926.137070]  [<ffffffff813c151b>] ? delay_tsc+0x3b/0x80
Mar 22 13:37:03 raven kernel: [ 2926.137075]  [<ffffffff813c1526>] ? delay_tsc+0x46/0x80
Mar 22 13:37:03 raven kernel: [ 2926.137079]  [<ffffffff813c151b>] ? delay_tsc+0x3b/0x80
Mar 22 13:37:03 raven kernel: [ 2926.137084]  [<ffffffff813c145b>] ? __const_udelay+0x2b/0x30
Mar 22 13:37:03 raven kernel: [ 2926.137111]  [<ffffffffc033fc1a>] ? e1000_acquire_swflag_ich8lan+0x7a/0x180 [e1000e]
Mar 22 13:37:03 raven kernel: [ 2926.137122]  [<ffffffffc03401c9>] ? e1000_clear_hw_cntrs_ich8lan+0xa9/0x1e0 [e1000e]
Mar 22 13:37:03 raven kernel: [ 2926.137133]  [<ffffffffc0342c46>] ? e1000_init_hw_ich8lan+0x236/0x340 [e1000e]
Mar 22 13:37:03 raven kernel: [ 2926.137147]  [<ffffffffc035c4aa>] ? e1000e_reset+0x23a/0x620 [e1000e]
Mar 22 13:37:03 raven kernel: [ 2926.137161]  [<ffffffffc035a1c3>] ? e1000e_setup_rx_resources+0x103/0x140 [e1000e]
Mar 22 13:37:03 raven kernel: [ 2926.137173]  [<ffffffffc035dd70>] ? e1000_open+0x3a0/0x4b0 [e1000e]
Mar 22 13:37:03 raven kernel: [ 2926.137179]  [<ffffffff81095756>] ? raw_notifier_call_chain+0x16/0x20
Mar 22 13:37:03 raven kernel: [ 2926.137186]  [<ffffffff816bfbe6>] ? __dev_open+0xb6/0x130
Mar 22 13:37:03 raven kernel: [ 2926.137190]  [<ffffffff816bff11>] ? __dev_change_flags+0xa1/0x170
Mar 22 13:37:03 raven kernel: [ 2926.137193]  [<ffffffff816c0009>] ? dev_change_flags+0x29/0x70
Mar 22 13:37:03 raven kernel: [ 2926.137197]  [<ffffffff816cf787>] ? do_setlink+0x3a7/0xb80
Mar 22 13:37:03 raven kernel: [ 2926.137204]  [<ffffffff811989d0>] ? zone_statistics+0x80/0xa0
Mar 22 13:37:03 raven kernel: [ 2926.137209]  [<ffffffff813dedd2>] ? nla_parse+0x32/0x120
Mar 22 13:37:03 raven kernel: [ 2926.137213]  [<ffffffff816d069d>] ? rtnl_newlink+0x5fd/0x760
Mar 22 13:37:03 raven kernel: [ 2926.137218]  [<ffffffff81312268>] ? security_capable+0x18/0x20
Mar 22 13:37:03 raven kernel: [ 2926.137223]  [<ffffffff8107e64d>] ? ns_capable+0x2d/0x60
Mar 22 13:37:03 raven kernel: [ 2926.137226]  [<ffffffff816cc7f2>] ? rtnetlink_rcv_msg+0x92/0x260
Mar 22 13:37:03 raven kernel: [ 2926.137231]  [<ffffffff813c9436>] ? rhashtable_lookup_compare+0x36/0x70
Mar 22 13:37:03 raven kernel: [ 2926.137235]  [<ffffffff816e9d7e>] ? __netlink_lookup+0x3e/0x50
Mar 22 13:37:03 raven kernel: [ 2926.137238]  [<ffffffff816cc760>] ? rtnetlink_rcv+0x40/0x40
Mar 22 13:37:03 raven kernel: [ 2926.137242]  [<ffffffff816edc89>] ? netlink_rcv_skb+0xb9/0xe0
Mar 22 13:37:03 raven kernel: [ 2926.137245]  [<ffffffff816cc74c>] ? rtnetlink_rcv+0x2c/0x40
Mar 22 13:37:03 raven kernel: [ 2926.137248]  [<ffffffff816ed3c1>] ? netlink_unicast+0x111/0x1b0
Mar 22 13:37:03 raven kernel: [ 2926.137252]  [<ffffffff816ed767>] ? netlink_sendmsg+0x307/0x650
Mar 22 13:37:03 raven kernel: [ 2926.137256]  [<ffffffff8135e2f0>] ? aa_sk_perm.isra.4+0x70/0x170
Mar 22 13:37:03 raven kernel: [ 2926.137260]  [<ffffffff816a1e5c>] ? do_sock_sendmsg+0x8c/0x100
Mar 22 13:37:03 raven kernel: [ 2926.137264]  [<ffffffff816a181c>] ? copy_msghdr_from_user+0x15c/0x210
Mar 22 13:37:03 raven kernel: [ 2926.137268]  [<ffffffff816a2478>] ? ___sys_sendmsg+0x348/0x360
Mar 22 13:37:03 raven kernel: [ 2926.137273]  [<ffffffff81180f67>] ? __free_pages+0x27/0x30
Mar 22 13:37:03 raven kernel: [ 2926.137277]  [<ffffffff81180fd3>] ? free_pages+0x13/0x20
Mar 22 13:37:03 raven kernel: [ 2926.137281]  [<ffffffff8107cea6>] ? __do_proc_dointvec+0x346/0x420
Mar 22 13:37:03 raven kernel: [ 2926.137286]  [<ffffffff8123321e>] ? fsnotify+0x37e/0x530
Mar 22 13:37:03 raven kernel: [ 2926.137290]  [<ffffffff813c2c38>] ? lockref_put_or_lock+0x58/0x90
Mar 22 13:37:03 raven kernel: [ 2926.137294]  [<ffffffff8120b166>] ? dput+0x56/0x1c0
Mar 22 13:37:03 raven kernel: [ 2926.137298]  [<ffffffff812143e4>] ? mntput+0x24/0x40
Mar 22 13:37:03 raven kernel: [ 2926.137302]  [<ffffffff816a2b92>] ? __sys_sendmsg+0x42/0x80
Mar 22 13:37:03 raven kernel: [ 2926.137306]  [<ffffffff816a2be2>] ? SyS_sendmsg+0x12/0x20
Mar 22 13:37:03 raven kernel: [ 2926.137311]  [<ffffffff817c7aed>] ? system_call_fastpath+0x16/0x1b
Mar 22 13:37:03 raven kernel: [ 2926.137352] 
Mar 22 13:37:03 raven kernel: [ 2926.137353] Restarting tasks ... done.
Mar 22 13:37:03 raven rtkit-daemon[2151]: The canary thread is apparently starving. Taking action.
Mar 22 13:37:03 raven rtkit-daemon[2151]: Demoting known real-time threads.
Mar 22 13:37:03 raven rtkit-daemon[2151]: Successfully demoted thread 2740 of process 2697 (n/a).
Mar 22 13:37:03 raven rtkit-daemon[2151]: Successfully demoted thread 2738 of process 2697 (n/a).
Mar 22 13:37:03 raven rtkit-daemon[2151]: Successfully demoted thread 2736 of process 2697 (n/a).
Mar 22 13:37:03 raven rtkit-daemon[2151]: Successfully demoted thread 2697 of process 2697 (n/a).
Mar 22 13:37:03 raven rtkit-daemon[2151]: Demoted 4 threads.

Then the machine abruptly powered off. ARGH! AAAAAAAAAAAAAARGH!!!!!

ProblemType: Bug
DistroRelease: Ubuntu 15.04
Package: linux-image-3.19.0-9-generic 3.19.0-9.9
ProcVersionSignature: Ubuntu 3.19.0-9.9-generic 3.19.1
Uname: Linux 3.19.0-9-generic x86_64
ApportVersion: 2.16.2-0ubuntu4
Architecture: amd64
AudioDevicesInUse:
 USER        PID ACCESS COMMAND
 /dev/snd/controlC1:  shevek     2677 F.... pulseaudio
 /dev/snd/controlC0:  shevek     2677 F.... pulseaudio
CurrentDesktop: XFCE
Date: Sun Mar 22 13:47:36 2015
HibernationDevice: RESUME=UUID=cd97b65a-0d29-4887-a0e6-7c9eea8707b0
InstallationDate: Installed on 2015-03-05 (17 days ago)
InstallationMedia: Xubuntu 14.04.2 LTS "Trusty Tahr" - Release amd64 (20150218.1)
MachineType: LENOVO 20CKCTO1WW
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.19.0-9-generic.efi.signed root=/dev/mapper/xubuntu--vg-root ro quiet splash crashkernel=384M-:128M nomdmonddf nomdmonisw crashkernel=384M-:128M nomdmonddf nomdmonisw crashkernel=384M-:128M vt.handoff=7
RelatedPackageVersions:
 linux-restricted-modules-3.19.0-9-generic N/A
 linux-backports-modules-3.19.0-9-generic  N/A
 linux-firmware                            1.143
SourcePackage: linux
UpgradeStatus: Upgraded to vivid on 2015-03-19 (3 days ago)
dmi.bios.date: 12/26/2014
dmi.bios.vendor: LENOVO
dmi.bios.version: N11ET29W (1.05 )
dmi.board.asset.tag: Not Available
dmi.board.name: 20CKCTO1WW
dmi.board.vendor: LENOVO
dmi.board.version: SDK0E50512 STD
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: None
dmi.modalias: dmi:bvnLENOVO:bvrN11ET29W(1.05):bd12/26/2014:svnLENOVO:pn20CKCTO1WW:pvrThinkPadT550:rvnLENOVO:rn20CKCTO1WW:rvrSDK0E50512STD:cvnLENOVO:ct10:cvrNone:
dmi.product.name: 20CKCTO1WW
dmi.product.version: ThinkPad T550
dmi.sys.vendor: LENOVO

** Affects: linux (Ubuntu)
     Importance: Undecided
         Status: Confirmed


** Tags: amd64 apport-bug vivid

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https://bugs.launchpad.net/bugs/1435073

Title:
  T550 crashed during attempted suspend: e1000e hardware error

Status in linux package in Ubuntu:
  Confirmed

Bug description:
  Running X. Nothing exciting.
  Locked the screen and shut the lid.
  Red LED took longer than normal to turn "off".
  Then it went off, and didn't blink like in sleep mode.
  Damnit, it's crashed, hasn't it.
  Reboot, read log files. We got something this time. Here it is.

  Mar 22 13:36:41 raven NetworkManager[1894]: <info> NetworkManager state is now ASLEEP
  Mar 22 13:36:42 raven NetworkManager[1894]: <info> (cdc-wdm0): device state change: unavailable -> unmanaged (reason 'sleeping') [20 10 37]
  Mar 22 13:36:42 raven dbus[1842]: [system] Activating via systemd: service name='org.freedesktop.nm_dispatcher' unit='dbus-org.freedesktop.nm-dispatcher.service'
  Mar 22 13:36:42 raven systemd[1]: Starting Network Manager Script Dispatcher Service...
  Mar 22 13:36:42 raven dbus[1842]: [system] Successfully activated service 'org.freedesktop.nm_dispatcher'
  Mar 22 13:36:42 raven nm-dispatcher: Dispatching action 'down' for wlan0
  Mar 22 13:36:42 raven systemd[1]: Started Network Manager Script Dispatcher Service.
  Mar 22 13:36:43 raven systemd[1]: Reached target Sleep.
  Mar 22 13:36:43 raven systemd[1]: Starting Sleep.
  Mar 22 13:36:43 raven systemd[1]: Starting Suspend...
  Mar 22 13:36:43 raven systemd-sleep[26355]: Suspending system...
  Mar 22 13:36:43 raven NetworkManager[1894]: <info> wake requested (sleeping: yes  enabled: yes)
  Mar 22 13:36:43 raven NetworkManager[1894]: <info> waking up...
  Mar 22 13:36:43 raven NetworkManager[1894]: <info> (eth0): device state change: unmanaged -> unavailable (reason 'managed') [10 20 2]
  Mar 22 13:37:03 raven kernel: [ 2906.011617] PM: Syncing filesystems ... done.
  Mar 22 13:37:03 raven kernel: [ 2906.114788] PM: Preparing system for mem sleep
  Mar 22 13:37:03 raven kernel: [ 2906.115270] Freezing user space processes ... 
  Mar 22 13:37:03 raven kernel: [ 2915.266916] e1000e 0000:00:19.0 eth0: Hardware Error
  Mar 22 13:37:03 raven kernel: [ 2916.261811] e1000e 0000:00:19.0: EEE advertisement - unable to acquire PHY
  Mar 22 13:37:03 raven kernel: [ 2926.137012] 
  Mar 22 13:37:03 raven kernel: [ 2926.137018] Freezing of tasks failed after 20.010 seconds (1 tasks refusing to freeze, wq_busy=0):
  Mar 22 13:37:03 raven kernel: [ 2926.137038] NetworkManager  R  running task        0  1894      1 0x00000004
  Mar 22 13:37:03 raven kernel: [ 2926.137043]  ffffffffffffff10 ffffffff8101e1bc 0000000000000010 0000000000000206
  Mar 22 13:37:03 raven kernel: [ 2926.137047]  ffff880417253480 0000000000000018 ffff8804172534a8 ffffffff813c151b
  Mar 22 13:37:03 raven kernel: [ 2926.137051]  0000000000000001 ffff880414c3ce38 0000000000000000 ffff880417253530
  Mar 22 13:37:03 raven kernel: [ 2926.137055] Call Trace:
  Mar 22 13:37:03 raven kernel: [ 2926.137064]  [<ffffffff8101e1bc>] ? native_read_tsc+0xc/0x20
  Mar 22 13:37:03 raven kernel: [ 2926.137070]  [<ffffffff813c151b>] ? delay_tsc+0x3b/0x80
  Mar 22 13:37:03 raven kernel: [ 2926.137075]  [<ffffffff813c1526>] ? delay_tsc+0x46/0x80
  Mar 22 13:37:03 raven kernel: [ 2926.137079]  [<ffffffff813c151b>] ? delay_tsc+0x3b/0x80
  Mar 22 13:37:03 raven kernel: [ 2926.137084]  [<ffffffff813c145b>] ? __const_udelay+0x2b/0x30
  Mar 22 13:37:03 raven kernel: [ 2926.137111]  [<ffffffffc033fc1a>] ? e1000_acquire_swflag_ich8lan+0x7a/0x180 [e1000e]
  Mar 22 13:37:03 raven kernel: [ 2926.137122]  [<ffffffffc03401c9>] ? e1000_clear_hw_cntrs_ich8lan+0xa9/0x1e0 [e1000e]
  Mar 22 13:37:03 raven kernel: [ 2926.137133]  [<ffffffffc0342c46>] ? e1000_init_hw_ich8lan+0x236/0x340 [e1000e]
  Mar 22 13:37:03 raven kernel: [ 2926.137147]  [<ffffffffc035c4aa>] ? e1000e_reset+0x23a/0x620 [e1000e]
  Mar 22 13:37:03 raven kernel: [ 2926.137161]  [<ffffffffc035a1c3>] ? e1000e_setup_rx_resources+0x103/0x140 [e1000e]
  Mar 22 13:37:03 raven kernel: [ 2926.137173]  [<ffffffffc035dd70>] ? e1000_open+0x3a0/0x4b0 [e1000e]
  Mar 22 13:37:03 raven kernel: [ 2926.137179]  [<ffffffff81095756>] ? raw_notifier_call_chain+0x16/0x20
  Mar 22 13:37:03 raven kernel: [ 2926.137186]  [<ffffffff816bfbe6>] ? __dev_open+0xb6/0x130
  Mar 22 13:37:03 raven kernel: [ 2926.137190]  [<ffffffff816bff11>] ? __dev_change_flags+0xa1/0x170
  Mar 22 13:37:03 raven kernel: [ 2926.137193]  [<ffffffff816c0009>] ? dev_change_flags+0x29/0x70
  Mar 22 13:37:03 raven kernel: [ 2926.137197]  [<ffffffff816cf787>] ? do_setlink+0x3a7/0xb80
  Mar 22 13:37:03 raven kernel: [ 2926.137204]  [<ffffffff811989d0>] ? zone_statistics+0x80/0xa0
  Mar 22 13:37:03 raven kernel: [ 2926.137209]  [<ffffffff813dedd2>] ? nla_parse+0x32/0x120
  Mar 22 13:37:03 raven kernel: [ 2926.137213]  [<ffffffff816d069d>] ? rtnl_newlink+0x5fd/0x760
  Mar 22 13:37:03 raven kernel: [ 2926.137218]  [<ffffffff81312268>] ? security_capable+0x18/0x20
  Mar 22 13:37:03 raven kernel: [ 2926.137223]  [<ffffffff8107e64d>] ? ns_capable+0x2d/0x60
  Mar 22 13:37:03 raven kernel: [ 2926.137226]  [<ffffffff816cc7f2>] ? rtnetlink_rcv_msg+0x92/0x260
  Mar 22 13:37:03 raven kernel: [ 2926.137231]  [<ffffffff813c9436>] ? rhashtable_lookup_compare+0x36/0x70
  Mar 22 13:37:03 raven kernel: [ 2926.137235]  [<ffffffff816e9d7e>] ? __netlink_lookup+0x3e/0x50
  Mar 22 13:37:03 raven kernel: [ 2926.137238]  [<ffffffff816cc760>] ? rtnetlink_rcv+0x40/0x40
  Mar 22 13:37:03 raven kernel: [ 2926.137242]  [<ffffffff816edc89>] ? netlink_rcv_skb+0xb9/0xe0
  Mar 22 13:37:03 raven kernel: [ 2926.137245]  [<ffffffff816cc74c>] ? rtnetlink_rcv+0x2c/0x40
  Mar 22 13:37:03 raven kernel: [ 2926.137248]  [<ffffffff816ed3c1>] ? netlink_unicast+0x111/0x1b0
  Mar 22 13:37:03 raven kernel: [ 2926.137252]  [<ffffffff816ed767>] ? netlink_sendmsg+0x307/0x650
  Mar 22 13:37:03 raven kernel: [ 2926.137256]  [<ffffffff8135e2f0>] ? aa_sk_perm.isra.4+0x70/0x170
  Mar 22 13:37:03 raven kernel: [ 2926.137260]  [<ffffffff816a1e5c>] ? do_sock_sendmsg+0x8c/0x100
  Mar 22 13:37:03 raven kernel: [ 2926.137264]  [<ffffffff816a181c>] ? copy_msghdr_from_user+0x15c/0x210
  Mar 22 13:37:03 raven kernel: [ 2926.137268]  [<ffffffff816a2478>] ? ___sys_sendmsg+0x348/0x360
  Mar 22 13:37:03 raven kernel: [ 2926.137273]  [<ffffffff81180f67>] ? __free_pages+0x27/0x30
  Mar 22 13:37:03 raven kernel: [ 2926.137277]  [<ffffffff81180fd3>] ? free_pages+0x13/0x20
  Mar 22 13:37:03 raven kernel: [ 2926.137281]  [<ffffffff8107cea6>] ? __do_proc_dointvec+0x346/0x420
  Mar 22 13:37:03 raven kernel: [ 2926.137286]  [<ffffffff8123321e>] ? fsnotify+0x37e/0x530
  Mar 22 13:37:03 raven kernel: [ 2926.137290]  [<ffffffff813c2c38>] ? lockref_put_or_lock+0x58/0x90
  Mar 22 13:37:03 raven kernel: [ 2926.137294]  [<ffffffff8120b166>] ? dput+0x56/0x1c0
  Mar 22 13:37:03 raven kernel: [ 2926.137298]  [<ffffffff812143e4>] ? mntput+0x24/0x40
  Mar 22 13:37:03 raven kernel: [ 2926.137302]  [<ffffffff816a2b92>] ? __sys_sendmsg+0x42/0x80
  Mar 22 13:37:03 raven kernel: [ 2926.137306]  [<ffffffff816a2be2>] ? SyS_sendmsg+0x12/0x20
  Mar 22 13:37:03 raven kernel: [ 2926.137311]  [<ffffffff817c7aed>] ? system_call_fastpath+0x16/0x1b
  Mar 22 13:37:03 raven kernel: [ 2926.137352] 
  Mar 22 13:37:03 raven kernel: [ 2926.137353] Restarting tasks ... done.
  Mar 22 13:37:03 raven rtkit-daemon[2151]: The canary thread is apparently starving. Taking action.
  Mar 22 13:37:03 raven rtkit-daemon[2151]: Demoting known real-time threads.
  Mar 22 13:37:03 raven rtkit-daemon[2151]: Successfully demoted thread 2740 of process 2697 (n/a).
  Mar 22 13:37:03 raven rtkit-daemon[2151]: Successfully demoted thread 2738 of process 2697 (n/a).
  Mar 22 13:37:03 raven rtkit-daemon[2151]: Successfully demoted thread 2736 of process 2697 (n/a).
  Mar 22 13:37:03 raven rtkit-daemon[2151]: Successfully demoted thread 2697 of process 2697 (n/a).
  Mar 22 13:37:03 raven rtkit-daemon[2151]: Demoted 4 threads.

  Then the machine abruptly powered off. ARGH! AAAAAAAAAAAAAARGH!!!!!

  ProblemType: Bug
  DistroRelease: Ubuntu 15.04
  Package: linux-image-3.19.0-9-generic 3.19.0-9.9
  ProcVersionSignature: Ubuntu 3.19.0-9.9-generic 3.19.1
  Uname: Linux 3.19.0-9-generic x86_64
  ApportVersion: 2.16.2-0ubuntu4
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC1:  shevek     2677 F.... pulseaudio
   /dev/snd/controlC0:  shevek     2677 F.... pulseaudio
  CurrentDesktop: XFCE
  Date: Sun Mar 22 13:47:36 2015
  HibernationDevice: RESUME=UUID=cd97b65a-0d29-4887-a0e6-7c9eea8707b0
  InstallationDate: Installed on 2015-03-05 (17 days ago)
  InstallationMedia: Xubuntu 14.04.2 LTS "Trusty Tahr" - Release amd64 (20150218.1)
  MachineType: LENOVO 20CKCTO1WW
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.19.0-9-generic.efi.signed root=/dev/mapper/xubuntu--vg-root ro quiet splash crashkernel=384M-:128M nomdmonddf nomdmonisw crashkernel=384M-:128M nomdmonddf nomdmonisw crashkernel=384M-:128M vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-3.19.0-9-generic N/A
   linux-backports-modules-3.19.0-9-generic  N/A
   linux-firmware                            1.143
  SourcePackage: linux
  UpgradeStatus: Upgraded to vivid on 2015-03-19 (3 days ago)
  dmi.bios.date: 12/26/2014
  dmi.bios.vendor: LENOVO
  dmi.bios.version: N11ET29W (1.05 )
  dmi.board.asset.tag: Not Available
  dmi.board.name: 20CKCTO1WW
  dmi.board.vendor: LENOVO
  dmi.board.version: SDK0E50512 STD
  dmi.chassis.asset.tag: No Asset Information
  dmi.chassis.type: 10
  dmi.chassis.vendor: LENOVO
  dmi.chassis.version: None
  dmi.modalias: dmi:bvnLENOVO:bvrN11ET29W(1.05):bd12/26/2014:svnLENOVO:pn20CKCTO1WW:pvrThinkPadT550:rvnLENOVO:rn20CKCTO1WW:rvrSDK0E50512STD:cvnLENOVO:ct10:cvrNone:
  dmi.product.name: 20CKCTO1WW
  dmi.product.version: ThinkPad T550
  dmi.sys.vendor: LENOVO

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References

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