Re: ide dvd burner detected as ide-tape

[Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>]

[ added linux-ide@ to cc: ]

On Saturday 04 October 2008, Thomas Drillich wrote:
> Am Freitag, 3. Oktober 2008 schrieb Bartlomiej Zolnierkiewicz:
> > On Wednesday 01 October 2008, Kay Sievers wrote:
> > > On Wed, Oct 1, 2008 at 1:00 AM, Thomas Drillich <th@drillich.com> wrote:
> > > > I found in the syslog:
> > > > Sep 30 13:44:44 localhost kernel: ide-tape: hda <-> ht0:
> > > > HH-@T)SPȴ/�����1*00 DRD)RAM GH22LP20P�{�����л�����HH-@T)SPȴ/�����1*00
> > > > rev 1*00
> > > > Sep 30 13:44:44 localhost kernel: ide-tape: ht0: I/O error, pc = 1a,
> > > > key =  5, asc = 64, ascq =  0
> > > > Sep 30 13:44:44 localhost kernel: ide-tape: hda: invalid tape speed
> > > > (assuming 650KB/sec)
> > > > Sep 30 13:44:44 localhost kernel: ide-tape: hda: invalid max_speed
> > > > (assuming 650KB/sec)
> > > > Sep 30 13:44:44 localhost kernel: ide-tape: ht0: I/O error, pc = 1a,
> > > > key =  5, asc = 64, ascq =  0
> > > > Sep 30 13:47:17 localhost kernel: ide-tape: hda <-> ht0:
> > > > HH-@T)SPȴ/�����1*00 DRD)RAM GH22LP20P�{�����������HH-@T)SPȴ/�����1*00
> > > > rev 1*00
> > > > Sep 30 13:47:17 localhost kernel: ide-tape: ht0: I/O error, pc = 1a,
> > > > key =  5, asc = 64, ascq =  0
> > > > Sep 30 13:47:17 localhost kernel: ide-tape: hda: invalid tape speed
> > > > (assuming 650KB/sec)
> > > > Sep 30 13:47:17 localhost kernel: ide-tape: hda: invalid max_speed
> > > > (assuming 650KB/sec)
> > > > Sep 30 13:47:17 localhost kernel: ide-tape: ht0: I/O error, pc = 1a,
> > > > key =  5, asc = 64, ascq =  0
> > > > -- end snip
> > > >
> > > > but its a LG GH22LP20 DVD burner
> > > >
> > > > cat /sys/bus/ide/devices/0.0/model returns
> > > >        HL)DP-ST@V@-RAI CH22HP20
> > > >
> > > > what can I do ?
> > >
> > > Bart, any idea what's going wrong here, or how to work around it?
> >
> > ide-tape driving DVD burner is a "CANNOT happen" case...
> >
> > Thomas, which kernel version is it?  Please post a full dmesg output.
> >
> Seems that can happen Bart ;-)
> 
> it's a 2.6.26.5 kernel running on debian/testing.
> 
> I moved ide now to module
>  alim15x3                7504  0 [permanent]
>  ide_pci_generic         5252  0 [permanent]
>  ide_core              140572  2 ide_pci_generic,alim15x3
> 
> but it didn't changed anything .. as expected.
> 
> >lspci
>  00:1f.0 IDE interface: ALi Corporation M5229 IDE (rev c7)
> 
> I added /proc/config.gz to the dmesg output

Linux version 2.6.26.5-3.00-st20g5 (root@mzpc) (gcc version 4.3.1 (Debian 4.3.1-9) ) #1 SMP PREEMPT Fri Oct 3 12:42:56 CEST 2008
...
ALI15X3: IDE controller (0x10b9:0x5229 rev 0xc7) at  PCI slot 0000:00:1f.0
ACPI: PCI Interrupt 0000:00:1f.0[A] -> GSI 19 (level, low) -> IRQ 19
ALI15X3: not 100% native mode: will probe irqs later
    ide0: BM-DMA at 0x8880-0x8887
    ide1: BM-DMA at 0x8888-0x888f
Probing IDE interface ide0...
...
hda: HL)DP-ST@V@-RAI CH22HP20, ATAPI TAPE drive
...

so this is a probing time device type misdectection
(yeah, the impossible has just happened ;).

Does BIOS also detect this device as "HL)DP-ST@V@-RAI"?

Please send the output of "hdparm --Istdout /dev/hda" so we can check
whether the problem is a bogus (corrupted?) identify data or some issue
with the device type detection code...

Could you also try 2.6.27-rc9?

Thanks,
Bart