ext4 filesystem corruption with 4.10-rc2 on ppc64le

From	Anton Blanchard <anton@samba.org>
Newsgroups	linux.kernel
Subject	ext4 filesystem corruption with 4.10-rc2 on ppc64le
Date	2017-01-04 07:10 +0100
Message-ID	<sVMVP-GX-1@gated-at.bofh.it> (permalink)
Organization	linux.* mail to news gateway

Show all headers | View raw

Hi,

I'm consistently seeing ext4 filesystem corruption using a mainline
kernel. It doesn't take much to trigger it - download a ppc64le Ubuntu
cloud image, boot it in KVM and run:

sudo apt-get update
sudo apt-get dist-upgrade
sudo reboot

And it never makes it back up, dying with rather severe filesystem
corruption.

I've narrowed it down to:

64e1c57fa474 ("ext4: Use clean_bdev_aliases() instead of iteration")
e64855c6cfaa ("fs: Add helper to clean bdev aliases under a bh and use it")
ce98321bf7d2 ("fs: Remove unmap_underlying_metadata")

Backing these patches out fixes the issue.

Anton

Back to linux.kernel | Previous | Next — Next in thread | Find similar | Unroll thread

Thread

ext4 filesystem corruption with 4.10-rc2 on ppc64le Anton Blanchard <anton@samba.org> - 2017-01-04 07:10 +0100
  Re: ext4 filesystem corruption with 4.10-rc2 on ppc64le Chandan Rajendra <chandan@linux.vnet.ibm.com> - 2017-01-04 13:00 +0100
    Re: ext4 filesystem corruption with 4.10-rc2 on ppc64le Theodore Ts'o <tytso@mit.edu> - 2017-01-04 16:30 +0100
      Re: ext4 filesystem corruption with 4.10-rc2 on ppc64le Linus Torvalds <torvalds@linux-foundation.org> - 2017-01-04 19:20 +0100
      Re: ext4 filesystem corruption with 4.10-rc2 on ppc64le Anton Blanchard <anton@samba.org> - 2017-01-05 11:50 +0100
      Re: ext4 filesystem corruption with 4.10-rc2 on ppc64le Chandan Rajendra <chandan@linux.vnet.ibm.com> - 2017-01-09 05:20 +0100

csiph-web