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[Bug 1491615] Re: Updating shim-signed freezes computer during postinstall


Thanks for the info.  it's still not apparent to me what would be
triggering this crash, but I think that's enough info now to assign this
over to the kernel team for investigation.

** Package changed: grub2 (Ubuntu) => linux (Ubuntu)

** Changed in: linux (Ubuntu)
       Status: Incomplete => New

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  Updating shim-signed freezes computer during postinstall

Status in linux package in Ubuntu:

Bug description:
  When performing an update using ubuntu's default GUI tool, during the
  "configuring shim-signed" message, the computer freezes and needs to
  be reset. Unfortunately, there is nothing in the system log except for
  corruption (a lot of null bytes). But I experience these hard freezes
  regularly, whenever a GRUB or EFI related package is being updated,
  always during postinstall.

  [    0.000000] efi: EFI v2.31 by American Megatrends
  [    0.000000] efi:  ESRT=0xd9f7f998  ACPI=0xd8f97000  ACPI 2.0=0xd8f97000  SMBIOS=0xf04d0  MPS=0xfd510 
  [    0.000000] esrt: Reserving ESRT space from 0x00000000d9f7f998 to 0x00000000d9f7f9d0.
  [    0.000000] SMBIOS 2.8 present.
  [    0.000000] DMI: MSI MS-7817/CSM-B85M-E45 (MS-7817), BIOS V10.9 04/21/2015
  Linux kiste 3.19.0-26-generic #28~14.04.1-Ubuntu SMP Wed Aug 12 14:09:17 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux

  This bug exists and keeps reappearing since I originally installed
  Ubuntu 14.04. However, for some reason it does not happen with a very
  similar second machine. This machine does not load the 'efi' kernel
  module on boot, can this be the reason?

  [    0.000000] SMBIOS 2.8 present.
  [    0.000000] DMI: MSI MS-7817/H81M-P33 (MS-7817), BIOS V1.5 05/30/2014
  Linux desktop 3.19.0+ #6 SMP Sat Feb 21 20:08:01 CET 2015 x86_64 x86_64 x86_64 GNU/Linux

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: shim-signed 1.9+0.8-0ubuntu2
  ProcVersionSignature: Ubuntu 3.19.0-26.28~14.04.1-generic 3.19.8-ckt4
  Uname: Linux 3.19.0-26-generic x86_64
  ApportVersion: 2.14.1-0ubuntu3.12
  Architecture: amd64
  CurrentDesktop: Unity
  Date: Wed Sep  2 09:33:16 2015
  SourcePackage: shim-signed
  UpgradeStatus: No upgrade log present (probably fresh install)

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