Re: lost interrupt hell - Plea for Help

Kevin P. Fleming (kevin@labsysgrp.com)
Sun, 19 May 2002 17:35:14 -0700


----- Original Message -----
From: "Mikael Pettersson" <mikpe@csd.uu.se>
To: <kevin@labsysgrp.com>
Cc: <linux-kernel@vger.kernel.org>
Sent: Sunday, May 19, 2002 01:26 PM
Subject: Re: lost interrupt hell - Plea for Help

>
> 1. It's been stated here on LKML several times that optical drives
> should NOT be connected to Promise chips. It may work with Promise's
> Windows drivers, but that doesn't help here. A better strategy is to
> connect your CD-ROMs and Zip drive to the KT266A, and any IDE disks
> either to the FastTrak or the Ultra66 add-on card (though from your
> `lspci` I suppose your disks are SCSI).
>

I've now switched the CD drives over to the VIA IDE interfaces, and am no
longer getting "lost interrupt" messages. However, I can't succesfully rip
audio from CDs, because I get continual "packet command errors" while
cdda2wav is doing its thing. This results in extremely slow rip speeds...
This is occurring with both 2.4.19-pre8 and 2.4.19-pre8-ac4 (which I believe
has a number of Andre's latest IDE updates included). Also, trying to rip
from my first drive (/dev/cdroms/cdrom0 since I'm using devfs) produces
"cooked: Read TOC: not implemented". For some reason the ide-cd driver
thinks this drive is incapable of doing audio ripping; this may be due to
the fact that it's the master drive on the first IDE channel on the
motherboard and the BIOS left it in some strange mode...

I can mount ISO9660 CDs without apparent problems now, though, so it does
appear that there was some bad Promise/CD drive interaction before. Strange.

What else can be done to work on these audio ripping problems?

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/