2002.01.29 ~08  -o loop

I dunno just exactly what causes this problem, but it's reliably reproducable:

 generate a romfs image
 burn directly to CD-R/CD-RW
 mount -t romfs /dev/scd0 /mnt

mount segfaults, kernel oopses    <- the problem
(drive remains inaccessible until kernel is killed (read: reboot))

Then (after a reboot), doing the same mount command causes segfault and kernel
oopses.  Reboot again, then throw in a "-o loop":

 mount -o loop -t romfs /dev/scd0 /mnt

And everything's all hunky-dory.  No segfault, no kernel oops, and I can read
stuff directly off /mnt.

This is on a K6/2-350 with 192MB RAM, linux 2.4.17.


My laptop has a DVD/CD-ROM drive, where doing the "-o"-less form on the same
disc doesn't cause an oops.  Celeron/400 32MB RAM, linux 2.4.17.


As near as I can tell, it's romfs barfing.  Might be a combination of something
in romfs with one of the modules involved in driving an IDE/ATAPI CD-RW drive.
Since I've figured a workaround in the meantime, I don't feel like hunting
down the root cause.  If this crops up in 2.4.18, I'll probably go a-hunting.