Brian, on a system where I routinely run both a 32-bit and a 64-bit x86 kernel (underneath the same 32-bit distro) I'm observing the newly added message being issued, along with the mounts subsequently failing when running the 32-bit kernel. Without doing anything to the FS, running an older 32-bit kernel or a 4.5-rc6 64-bit one have everything work fine (and silently), so I can only assume the detection logic doesn't work right in a 32-bit kernel. I've looked over commits 6528250b71 and 7088c4136f without being able to spot any obvious word size dependency, but then again I know nothing about the inner workings of the XFS code. I'm now hoping that you have an idea what's going on here. Thanks, Jan _______________________________________________ xfs mailing list xfs@xxxxxxxxxxx http://oss.sgi.com/mailman/listinfo/xfs