Re: Filesystem Consistency Issues

[Eric Sandeen <sandeen@xxxxxxx>]

Steve Lord wrote:
> XFS always does a scan of the log on mount, it always replays the log if it
> is not terminated with an unmount record. The fact that the filesystem is
> mounted readonly during startup should have no affect on this. XFS will run
> recovery on a read only mount.

The only time xfs will not replay the log on mount is if the -block 
device- itself is readonly; for example a read-only snapshot or... um... 
maybe a cdrom? :)  But Steve is right (of course!) - the "ro" option 
does not prevent log replay.

> On inode unlink, XFS adds inodes to an unlinked inode list until the 
> space in
> the inode is freed when the last reference count is released. Removing 
> these
> inodes is part of the recovery process. It sounds like there may be an 
> issue
> with this part of recovery.

Yep.

-Eric