Re: Fdomain + CD ROM access -> kernel panic
Chuck Mead (chuck@moongroup.com)
Mon, 6 Sep 1999 22:26:30 -0400 (EDT)
On Sat, 4 Sep 1999, Dean Martin Townsley spewed into the bitstream:
> > A hack that kind of seems to work is to edit the .h file for the driver and
> > turn off queueing support.
>
> Thanks for the reply! I've got some weirdness though. I thought I had tried
> this about a week ago (setting can_queue to 0 in fdomain.h) but just to make
> sure I tried again. Now if I set can_queue to 0 the kernel doesn't even make
> it through the boot sequence, it freezes just after detecting the SCSI
> adapter, i.e. right after:
> ...
> Floppy drive(s): fd0 is 1.44M
> FDC 0 is a post-1991 82077
> scsi0: <fdomain> No BIOS; using scsi id 7
> scsi0: <fdomain> TMC-36C70 (PCI bus) chip at 0xec00 irq 11
> scsi0 : Future Domain 16-bit SCSI Driver Version 5.50
> scsi : 1 host
>
> and I mean freeze, no scrollback even. It should detect the drive at this
> point but doesn't.
> I'm really clueless now. I might try to play with some queue logging to
> see if I can get it to tell me any more.
> Note: the irq above is different from my previous post because I hopped the
> card to another slot to see if that would get it to boot, it didn't.
I have exactly the same problem and the "hack" didn't work for me either. See
the other thread I've started on this topic! Anyway... I dunno what to do...
I've tried the hack and I can't boot so I'm running the driver as is... I've
mailed the author and I didn't get any bounces... hopefully we'll see some
response tomorrow after the US is back to work from holiday!
Note: the problem still exists in the 2.2.12 kernel... I've now encountered it
in 2.2.5-15, 2.2.5-22, and 2.2.12. From my reading of the sources it's been
quite a while since anybody touched that driver!
--
Chuck Mead, CTO, MoonGroup Consulting, Inc. <http://moongroup.com>
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