[Bug 2039172] [NEW] grub 2.12~rc1 fails to load files from large directories on XFS

[Julian Andres Klode]

Public bug reported:

[Impact]
Multi-extent directories are not parsed correctly by grub's XFS code in 2.12~rc1, preventing it from loading files from directories with too many entries, such as the grub module directory.

This should only affect BIOS systems as they need to load the core grub
modules from the module directory, whereas UEFI systems have them
embedded in the ESP EFI image.

[Test plan]
TBD

[Where problems could occur]
TBD

** Affects: grub2 (Ubuntu)
     Importance: High
         Status: Triaged

** Affects: grub2 (Debian)
     Importance: Unknown
         Status: Unknown

** Bug watch added: Debian Bug tracker #1051543
   https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1051543

** Also affects: grub2 (Debian) via
   https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1051543
   Importance: Unknown
       Status: Unknown

** Description changed:

  [Impact]
- Multi-extent directories are not parsed correctly by grub's XFS code in 2.12~rc1, preventing it from loading files from directories with too many entries, such as the grub module directory
+ Multi-extent directories are not parsed correctly by grub's XFS code in 2.12~rc1, preventing it from loading files from directories with too many entries, such as the grub module directory.
+ 
+ This should only affect BIOS systems as they need to load the core grub
+ modules from the module directory, whereas UEFI systems have them
+ embedded in the ESP EFI image.
  
  [Test plan]
  TBD
  
  [Where problems could occur]
  TBD

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https://bugs.launchpad.net/bugs/2039172

Title:
  grub 2.12~rc1 fails to load files from large directories on XFS

Status in grub2 package in Ubuntu:
  Triaged
Status in grub2 package in Debian:
  Unknown

Bug description:
  [Impact]
  Multi-extent directories are not parsed correctly by grub's XFS code in 2.12~rc1, preventing it from loading files from directories with too many entries, such as the grub module directory.

  This should only affect BIOS systems as they need to load the core
  grub modules from the module directory, whereas UEFI systems have them
  embedded in the ESP EFI image.

  [Test plan]
  TBD

  [Where problems could occur]
  TBD

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