Re: ide-scsi problems (identical) in 2.5.38 and 2.4.20-pre7-ac3: CoD != 0 in idescsi_pc_intr

From: Thomas Molina (
Date: Sun Sep 22 2002 - 13:07:18 EST

On Sun, 22 Sep 2002, Jurriaan wrote:

> selected parts of dmesg:
> hdg: LITE-ON LTR-40125W, ATAPI CD/DVD-ROM drive
> ide-cd: passing drive hdg to ide-scsi emulation.
> scsi1 : SCSI host adapter emulation for IDE ATAPI devices
> Vendor: LITE-ON Model: LTR-40125W Rev: WS05
> Type: CD-ROM ANSI SCSI revision: 02
> sr3: scsi3-mmc drive: 12x/12x writer cd/rw xa/form2 cdda tray
> After writing for a while, it says:
> ide-scsi: CoD != 0 in idescsi_pc_intr
> hdg: ATAPI reset complete

I could not duplicate this error in 2.5.38-bk.

However, I did notice some other anomalies during testing. My testing
consisted of dd if=/dev/cdrom of=cd.iso under 2.4.18-10 and 2.5.38-bk. I
tried both a small mail spool (2 MB) cd and a large document cd (637 MB).
The small file copied fine under both, but 2.5.38-bk read two fewer
sectors than 2.4.18-10 (32404 vs. 32406). On disk, the files created

-rw-r--r-- 1 root root 668475392 Sep 22 12:01 cd2.iso
-rw-r--r-- 1 root root 668479488 Sep 22 11:51 cd.iso

from the same source cd.

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