Windows guest got 0x5c BSOD when rebooting

[Seyeong Kim]

[Impact]

When rebooting Windows guest, it gets 0x5c BSOD
Impact to 3.13 ( trusty )
no Impact to 4.x

[Fix]

Upstream development
4114c27d450bef228be9c7b0c40a888e18a3a636
("KVM: x86: reset RVI upon system reset")
6d2a0526b09e551d0f395cfb63e7cb965db825af
("KVM: x86: Emulator should set DR6 upon GD like real CPU")

and got one MACRO definition from below commit as 6d2a05's dependency
6f43ed01e87c8a8dbd8c826eaf0f714c1342c039
(whole 6f43ed commit has a lot of dependency to the other commits)

[Testcase]

Running 6 windows vms( 2012r2 ) on one single server.
auto rebooting scripts in windows guest.
after one day (around hundred rebooting), can get 0x5c certainly

[Brad Figg (brad-figg)]

This bug is missing log files that will aid in diagnosing the problem. From a terminal window please run:

apport-collect 1660519

and then change the status of the bug to 'Confirmed'.

If, due to the nature of the issue you have encountered, you are unable to run this command, please add a comment stating that fact and change the bug status to 'Confirmed'.

This change has been made by an automated script, maintained by the Ubuntu Kernel Team.

[Brad Figg (brad-figg)]

This bug is awaiting verification that the kernel in -proposed solves the problem. Please test the kernel and update this bug with the results. If the problem is solved, change the tag 'verification-needed-trusty' to 'verification-done-trusty'. If the problem still exists, change the tag 'verification-needed-trusty' to 'verification-failed-trusty'.

If verification is not done by 5 working days from today, this fix will be dropped from the source code, and this bug will be closed.

See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Thank you!

[Seyeong Kim (seyeongkim)]

tested.

one physical machines ( which had this issue ) with 6 windows guest having rebooting script every 10 secs.

after running around 2 days, there is no 0x5c BSOD. ( there was 0x5c bsod after running 1 day )

Thanks.

[Launchpad Janitor (janitor)]

This bug was fixed in the package linux - 3.13.0-111.158

---------------
linux (3.13.0-111.158) trusty; urgency=low

  [ Thadeu Lima de Souza Cascardo ]

  * Release Tracking Bug
    - LP: #1666905

  [ Andy Whitcroft ]
  * Windows guest got 0x5c BSOD when rebooting (LP: #1660519)
    - KVM: x86: reset RVI upon system reset
    - KVM: x86: Emulator should set DR6 upon GD like real CPU

  * ipv6: fix a refcnt leak with peer addr (LP: #1662096)
    - ipv6: fix a refcnt leak with peer addr
    - ipv6: use addrconf_get_prefix_route() to remove peer addr
    - ipv6: Avoid double dst_free

  * Enable CONFIG_NET_DROP_MONITOR=m in Ubuntu Kernel (LP: #1660634)
    - [Config] CONFIG_NET_DROP_MONITOR=m

 -- Thadeu Lima de Souza Cascardo <email address hidden> Wed, 22 Feb 2017 10:53:06 -0300