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apport-collect 1847340

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

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This change has been made by an automated script, maintained by the
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** Changed in: linux (Ubuntu)
       Status: New => Incomplete

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

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https://bugs.launchpad.net/bugs/1847340

Title:
  ext4 journal recovery fails w/ data=journal + journal_checksum + mmap

Status in linux package in Ubuntu:
  Incomplete
Status in linux source package in Bionic:
  Confirmed
Status in linux source package in Disco:
  Incomplete
Status in linux source package in Eoan:
  Incomplete
Status in linux source package in FF-Series:
  New

Bug description:
  [Impact]
  In the event of a loss of power, ext4 filesystems mounted w/ 
data=journal,journal_checksum are subject to a corruption issue that requires a 
fsck to recover. This is exacerbated by installations by curtin that set 
passno=0 in /etc/fstab, preventing fsck from running automatically and thus 
requiring a manual recovery. And *that* is further exacerbated because 
initramfs-tools is smart enough to not include fsck.ext4 when passno=0 is 
detected in /etc/fstab, requiring the user to boot from recovery media.

  [Test Case]
  Forcibly power cycle a system running 'stress-ng --dir 0'. I've created a 
package to automate the reproduction:
  https://git.launchpad.net/~dannf/+git/dgx2-ext4-csum-repro?h=master

  [Fix]
  [Regression Risk]

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