kernel-packages team mailing list archive

[Joseph Salisbury <joseph.salisbury@xxxxxxxxxxxxx>]

Would it be possible for you to test the latest upstream kernel? Refer
to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest
v4.1 kernel[0].

If this bug is fixed in the mainline kernel, please add the following
tag 'kernel-fixed-upstream'.

If the mainline kernel does not fix this bug, please add the tag:
'kernel-bug-exists-upstream'.

If you are unable to test the mainline kernel, for example it will not boot, please add the tag: 'kernel-unable-to-test-upstream'.
Once testing of the upstream kernel is complete, please mark this bug as "Confirmed".


Thanks in advance.

[0] http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.1-rc3-vivid/


** Changed in: linux (Ubuntu)
   Importance: Undecided => High

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

-- 
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https://bugs.launchpad.net/bugs/1452165

Title:
  currupted btrfs breaks both recovery and boot

Status in linux package in Ubuntu:
  Incomplete

Bug description:
  If btrfs volume is corrupted (separate /home partition, not even /
  !!!) than not only booting ubuntu in normal AND recovery mode is
  impossible but even liveusb fails as well. The recovery drops to shell
  but it's impossible to fix btrfs - there's unkillable mount -t
  btrfs... process hanging and kernel regularly pukes with "btrfs-
  transacti blocked for 120 seconds" message.

  This is beyond horrible - the whole purpose of recovery mode is to fix
  errors like that, errors on partition which is not used to boot from
  (e. g. /home) should never ever break it. Alternatively you could add
  new mode to grub menu - smth like "recovery which actually works" or
  something like that.

  The workaround is to add 'break=premount' to grub command line and fix
  btrfs with 'btrfs check --repair /dev/dm-....' from initramfs.

  Found on xubuntu 15.04 x86_64.

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