Hi there, fellow Alphaheads :)
I have a PWS600a with SuSE 7.1, kernel 2.4.12 (old, I know). Its CD-ROM is
a rather outdated Toshiba XM6102 ATAPI drive. At a local computer show I
bought a cheap ATAPI CD-RW from Philips (don't have the model number with
me right now, it's an 4x4x24 or something). In my naive way, I thought
replacing an IDE CD-ROM with another wouldn't make much of a difference,
but - boy! - I was wrong.
Regardless of how I configure the drive on the bus (Master/Slave) it
recognizes the drive and prints the ID string, but reports an "IRQ probe
failed" error and the kernel panics. If I unplug the drive Linux boots up
like a charm.
What's really strange is, if I put my IDE Harddisk and the CD-RW on the
same bus (HDD master, CD-RW slave) it recognizes both of them (e.g. hda:
HDD, hdb: CD-RW), but then it hangs while probing hdc for the IRQ, even
though I have pulled the cable from the second IDE channel. I'll still
have to check my exact boot parameters, because I recall there was an
issue with passing the HDD geometry (30 GB drive). I'm at work now, but I
will check on that later.
Has anybody come across something like this? Any idea what might be
causing the problems? Any input is greatly appreciated! :) Thanks!