I didn't see this in bugzilla, but then again it may be a "We don't officially support JFS" issue.
I have several large JFS partitions andon every fecdora (and in rawhide now) there is an issue that if the machien is uncleanly shut down, I have to mount the drives manually at boot-up.
To be clear:
JFS doesn't auto-replay journal upon mounting, you have to run fsck.jfs to do that. I added hacks to my rc.local, but that doesn't help anyone else.
thanks, noah silva