I previously reported this bug with the ATAPI cdrom driver in Linux
2.2.13. Well, I haven't found the problem yet but I can say that it
does happen with CD-ROMs that only have audio tracks, just not as
often as with my combined audio / (data, video) discs. For instance, I
have just done
# hdparm -c 1 /dev/cdrom
with a purely audio CD in the drive, and been rewarded with:
Dec 20 01:17:48 WellHouse kernel: hdc: packet command error: status=0x51 { DriveReady SeekComple
Dec 20 01:17:48 WellHouse kernel: hdc: packet command error: error=0x30
Dec 20 01:17:48 WellHouse kernel: ATAPI device hdc:
Dec 20 01:17:48 WellHouse kernel: Error: Medium error -- (Sense key=0x03)
Dec 20 01:17:48 WellHouse kernel: Unable to recover table of contents -- (asc=0x57, ascq=0x00)
Dec 20 01:17:48 WellHouse kernel: The failed "Test Unit Ready" packet command was:
Dec 20 01:17:48 WellHouse kernel: "00 00 00 00 00 00 00 00 00 00 00 00 "
Dec 20 01:17:48 WellHouse kernel: cdrom: open failed.
Dec 20 01:17:48 WellHouse kernel: hdc: packet command error: status=0x51 { DriveReady SeekComple
Dec 20 01:17:48 WellHouse kernel: hdc: packet command error: error=0x30
Dec 20 01:17:48 WellHouse kernel: ATAPI device hdc:
Dec 20 01:17:48 WellHouse kernel: Error: Medium error -- (Sense key=0x03)
Dec 20 01:17:48 WellHouse kernel: Unable to recover table of contents -- (asc=0x57, ascq=0x00)
Dec 20 01:17:48 WellHouse kernel: The failed "Test Unit Ready" packet command was:
Dec 20 01:17:48 WellHouse kernel: "00 00 00 00 00 00 00 00 00 00 00 00 "
Even more rarely, I can sometimes load the audio CD into the drive and
the DRIVE_STATUS ioctl will do nothing - no errors are reported but
the CD isn't identified either.
I can't claim to understand what's happening; I just load and unload
CDs and sometimes the DRIVE_STATUS ioctl explodes (although more often
with some CDs than others).
I hope this means something to somebody,
Cheers,
Chris.
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.rutgers.edu
Please read the FAQ at http://www.tux.org/lkml/