XFS corruption with power failure

[John Quigley]

John Quigley wrote:
> We've distilled this into a reproducible environment with a stack of NFS + XFS 
> to a local disk + automated sysrq 'b' reboots.  We're working on getting 
> this bundled up into a nice little package as a VirtualBox vm for your 
> consumption.  Please tell me if this is not desirable.

The self-contained and reproducible environment can be downloaded from the following location:

  http://www.jquigley.com/tmp/xfsVM.tar.bz2

That's a ~550 MB (compressed) image that can be 'imported' directly into the latest VirtualBox.  Instructions for setting up the environment (trivial, should take you a mere couple of minutes):

  http://www.jquigley.com/tmp/README.txt

The basic concept here is to use the VM as the file server, accessing the XFS file system thereon through the guest OS which acts as the NFS client.  Automated reboots are effected with cron and sysrq 'b', so you can just set this up and run it until failure.

Hope this helps lend insight - if there are any questions, please ask.  Thanks for your time.

- John Quigley