Showstopper -- install panic in IDE CDRom driver with Mistumi FX drive

[John DeDourek]

Basically, we have a bunch of lab machines that we would like to upgrade 
to FC3.
Unfortunately, the install kernel panics on attempting access to the 
CDRom.  This
appears to be basically a Kernel 2.6 problem and therefore we can 
install neither
FC2 nor FC3 on these machines.  In any case, the announcement was just 
posted
that FC2 was moving to legacy in the near future.

The bug is well described in Bugzilla #115458 at
   https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=115458
The likelyhood is that this appears on older, slow hardware where the CDRom
access times out and the error recovery panics the kernel.

Does anyone have a workaround for this that will get these machines 
installed?
It's an isolated lab (networking experimentation) so is generally not 
linked to the
campus network; therefore a network install is not an easy option; 
busides, we
suspect that we would panic anytime the CDRom was accessed under the running
kernel as well.

We have tried using hdc=ide-scsi ... this does get past the crash in the 
installation,
but then Anaconda can't find the installation CD.  (Possibly looking at 
a link to /dev/hdc
instead of to the appropriate SCSI drive?)

The Bugzilla description has an analysis of the stack trace by Alan 
Cox.  But I'm afraid
thate we're not yet experienced enough here to understand how to use 
that information
to locate the apparent kernel bug.

Any help or pointers would be appreciated.