[Bug 1610684] Re: ubuntu 16.04 won't shutdown : Reached target Shutdown[ok] also ubuntu 14.04 won't shut down : killing all procces [fail]

[Dan Streetman]

** Changed in: systemd (Ubuntu)
       Status: New => Won't Fix

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Title:
  ubuntu 16.04 won't shutdown : Reached target Shutdown[ok] also ubuntu
  14.04 won't shut down : killing all procces [fail]

Status in systemd package in Ubuntu:
  Won't Fix

Bug description:

  I had ubuntu 14.04 (DELL laptop INSPIRON N-4110 ) shutdown and reboot
  worked correctly and without any problem but after a long time I
  wasn't able to reboot or shutdown my machine.

  and that was the log message was shown by pressing Esc during
  shutdown:

  killing all procceses  [fail]

  and I tried all the tips I saw in askubuntu and others(like changing
  the grub and shutdown - h now etc none of them have worked ! )

  then I clean installed ubuntu 16.04 (current) but issue is not going
  to solve.

  now the log shows:

  [ok] Reached target Shutdown 
  [135.486156] ata2.00: exception Emask 0x0 SAct 0x0 SErr 0X0 action 0x6 frozen
  [135.846776] ata2.00: cmd a0/00: 00:00:00:00/00:00:00:00:00/s0 tag 4 pio 16392 in
  [135.846776] get event status notification 4a  01 00 10 00 00 00 00 00res 40/00:00:00:00
  [135.848020] ata2.00:status: { DRDY }
  [141.182090] ata2.00 revalidation failed  (errno=-5)

  I checked bug #1464917 and did instructions also but nothings changed
  .

  UPDATE:

  after updating to 16.04.1 (boot install) Ubuntu will shutdown if i do
  it fast when OS is coming up but after a while it's not going to power
  off again and Esc key won't work and does not show me log any more

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