kernel-packages team mailing list archive

[Trent Lloyd <lathiat@xxxxxx>]

Public bug reported:

My btrfs filesystem will not mount almost every boot for a few weeks
now.  The only way I can currently fix this is to network boot into
rescue mode to clear the log, would be great to import this into vivid.

It appears to be this issue:
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=9c4f61f01d269815bb7c37be3ede59c5587747c6
https://btrfs.wiki.kernel.org/index.php/Gotchas

> Stable kernel version 3.19.1+ can cause a deadlock at mount time
> workaround: boot with older kernel, or run btrfs-zero-log to clear the log (beware of the consequences)
> fix: scheduled for 3.19.5, or apply 9c4f61f01d269815bb7c37.
> also affected: 3.14.35+, 3.18.9+

** Affects: linux (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: kernel-bug patch vivid

** Summary changed:

- btrfs deadlock at mount/boot
+ [vivid] btrfs deadlock at mount/boot

** Tags added: kernel-bug patch vivid

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https://bugs.launchpad.net/bugs/1445252

Title:
  [vivid] btrfs deadlock at mount/boot

Status in linux package in Ubuntu:
  New

Bug description:
  My btrfs filesystem will not mount almost every boot for a few weeks
  now.  The only way I can currently fix this is to network boot into
  rescue mode to clear the log, would be great to import this into
  vivid.

  It appears to be this issue:
  https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=9c4f61f01d269815bb7c37be3ede59c5587747c6
  https://btrfs.wiki.kernel.org/index.php/Gotchas

  > Stable kernel version 3.19.1+ can cause a deadlock at mount time
  > workaround: boot with older kernel, or run btrfs-zero-log to clear the log (beware of the consequences)
  > fix: scheduled for 3.19.5, or apply 9c4f61f01d269815bb7c37.
  > also affected: 3.14.35+, 3.18.9+

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