[Bug 1459872] Re: crash when progress mod used w/ net files

[dann frazier]

** Summary changed:

- arm64 images built w/ the progress module crash GRUB
+ crash when progress mod used w/ net files

** Summary changed:

- crash when progress mod used w/ net files
+ using progress mod w/ net files crashes

** Also affects: grub2 (Ubuntu Vivid)
   Importance: Undecided
       Status: New

** Also affects: grub2 (Ubuntu Wily)
   Importance: Undecided
       Status: New

** Also affects: grub2 (Ubuntu Trusty)
   Importance: Undecided
       Status: New

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https://bugs.launchpad.net/bugs/1459872

Title:
  using progress mod w/ net files crashes

Status in grub2 package in Ubuntu:
  New
Status in grub2 source package in Trusty:
  New
Status in grub2 source package in Vivid:
  New
Status in grub2 source package in Wily:
  New

Bug description:
  GRUB version 2.02~beta2-9ubuntu1.2

  Booting a grub image w/ the progress module on a certain arm64/EFI
  systems causes GRUB to crash w/ Synchronous Exceptions. This isn't
  reproducible in QEMU.

  Reproduction. The simple case is to create a grub image with *just*
  the progress module:

  $ grub-mkimage -v -o grubaa64.efi -O arm64-efi -d
  /home/dannf/x/usr/lib/grub/arm64-efi progress

  Booting the resulting image:

  [1] PXE
  [2] ubuntu
  [3] Shell
  [4] Boot Manager
  Start: 1
  ..

  Synchronous Exception at 0x0000000FF7C3DDC8

  Synchronous Exception at 0x0000000FF7C3DDC8

  Synchronous Exception at 0x0000000FF7C3DDC8

  Synchronous Exception at 0x0000000FF7C3DDC8
  [...]

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