Comment 14 for bug 41624

Ian, yes it does seem a bit pedantic although to be fair there was a devils-advocate stance :)

I can see both arguments: On the one hand read-only should mean just that, it should have the same effect as read-only media. On the other hand a journalled file-system does need to replay the log to look consistent, even if it is only replayed to RAM.

On balance, I'd say a read-only file-system shouldn't have the log file replayed (to RAM or disk) no matter if it appears inconsistent at that time. When the file-system is next mounted read-write (in this scenario, by the OS that 'owns' it) the file system will be consistent.