Re: IDE breakage with cdrom in 2.5.18+

[Martin Dalecki <dalecki@evision-ventures.com>]

Thierry Vignaud wrote:
> "Udo A. Steinberg" <reality@delusion.de> writes:
> 
> 
>>/dev/hde shows packet command errors upon bootup. Any ideas?
> 
> 
>>hda: IBM-DTLA-307030, ATA DISK drive
>>hdb: IBM-DTLA-307030, ATA DISK drive
>>hde: PLEXTOR CD-R PX-W1210A, ATAPI CD/DVD-ROM drive
>>ide0 at 0x9400-0x9407,0x9002 on irq 10
>>ide2 at 0x1f0-0x1f7,0x3f6 on irq 14
>> hda: 60036480 sectors w/1916KiB Cache, CHS=59560/16/63, UDMA(100)
>> hda: hda1
>> hdb: 60036480 sectors w/1916KiB Cache, CHS=59560/16/63, UDMA(100)
>> hdb: hdb1 hdb2 hdb3 < hdb5 hdb6 hdb7 hdb8 hdb9 hdb10 >
>>hde: ATAPI 32X CD-ROM CD-R/RW drive, 2048kB Cache, DMA
>>Uniform CD-ROM driver Revision: 3.12
>>hde: packet command error: status=0x51 { DriveReady SeekComplete Error } 
>>hde: packet command error: error=0x54
>>ATAPI device hde:
>>  Error: Illegal request -- (Sense key=0x05)
>>  Invalid field in command packet -- (asc=0x24, ascq=0x00)
>>  The failed "Request Sense" packet command was: 
>>  "03 00 00 00 12 00 00 00 00 00 00 00 "
> 
> 
> afaic looks "try to detect partitions" lookup that should not had been
> done on cdrom :-(
> 

Just remove (or tweak) the ata_revalidate from the recently added attach method
there and you should be fine perhaps. I will check this
tomorrow later. This doesn't happen with a modularized driver and
therefore the chances are indeed very high that this is the
culprit.

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