kernel 2.4.x + via-based kt266 mobo = IDE cdroms probls (revisited)

[Andre Costa <acosta@ar.microlink.com.br>]

Hi all,

owners of VIA KT266-based mobos with IDE cdroms are unable to rip audio
tracks using both SCSI emulation and native IDE mode (kernel 2.4.x).
Symptoms are "lost interrupts" such as:

Jan 8 21:04:28 candy kernel: scsi : aborting command due to timeout : pid 13448, scsi0, channel 0, id 0, lun 0 UNKNOWN(0xbe) 00 00 00 00 00 00 00 07 f8 00 00
Jan 8 21:04:28 candy kernel: hdc: lost interrupt 
Jan 8 21:05:28 candy kernel: scsi : aborting command due to timeout : pid 13458, scsi0, channel 0, id 0, lun 0 UNKNOWN(0xbe) 00 00 00 00 7c 00 00 0d f8 00 00 
Jan 8 21:05:28 candy kernel: hdc: lost interrupt 
Jan 8 21:06:30 candy kernel: scsi : aborting command due to timeout : pid 13493, scsi0, channel 0, id 0, lun 0 UNKNOWN(0xbe) 00 00 00 00 fc 00 00 0d f8 00 00 
Jan 8 21:06:30 candy kernel: hdc: lost interrupt 

This probl has been briefly discussed here a while ago:

http://marc.theaimsgroup.com/?l=linux-kernel&m=103382933709162&w=2

Since then, it has also been discussed more thoroughly on other places
as well:

Linuxhardware.org
http://www.linuxhardware.org/article.pl?sid=02/12/22/1732217

MSI forums
http://www.msi.com.tw/program/e_service/forum/viewthread.php?threadid=7790&boardid=13

VIA Arena Linux Forum
http://forums.viaarena.com/messageview.cfm?catid=28&threadid=28308&STARTPAGE=1

Some guy reported success after downgrading his BIOS to an earlier
version (unfortunately we could not contact him again after this
report). So, there is a chance that BIOS might be the culprit.

HOWEVER, *every* machine that shows this probl with Linux is perfectly
capable of ripping audio tracks while running Win2k/XP, so there's got
to be a solution.

So, my question is: are you guys aware of such probl? Any solution in
the horizon? Any help we could offer (aside from coding)? Me and other
guys experiencing this same probl have joined together, we even have an
e-group dedicated to it. We're eager to help in finding a solution, but
unfortunately we won't be able to help directly with code...

TIA

Andre

-- 
Andre Oliveira da Costa