XFS corruption with failover

[John Quigley]

Lachlan McIlroy wrote:
> xfs_logprint doesn't find any problems with this log but that doesn't mean
> the kernel doesn't - they use different implementations to read the log.  I
> noticed that the active part of the log wraps around the physical end/start
> of the log which reminds of this fix:

Very interesting indeed, thank you /very/ much for looking at this.

> I think the fix made it into 2.6.24.

We're currently using the very latest 2.6.30, unfortunately.  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.

Thanks very much again.

John Quigley
jquigley.com