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SubjectRe: Everyone Classic Hardware Crash (Re: 2.3.41-4 / hda: lost interrupt)
On Sat, 29 Jan 2000, Greg KH wrote:

> Uniform Multi-Platform E-IDE driver Revision: 6.30
> PIIX4: IDE controller on PCI bus 00 dev 39
> PIIX4: not 100% native mode: will probe irqs later
> hda: WDC AC26400R, ATA DISK drive
> hdb: WDC WD136AA, ATA DISK drive
> hdc: Memorex CDRW-2216, ATAPI CDROM drive
> ide0 at 0x1f0-0x1f7,0x3f6 on irq 14
> ide1 at 0x170-0x177,0x376 on irq 15
> hda: WDC AC26400R, 6149MB w/512kB Cache, CHS=784/255/63
> hdb: WDC WD136AA, 12971MB w/2048kB Cache, CHS=1653/255/63
> hdc: ATAPI 16X CD-ROM CD-R/RW drive, 1024kB Cache
> Uniform CD-ROM driver Revision: 3.06
> Partition check:
> hda: hda1 hda2 hda3 < hda5 >
> hdb: hdb1 < hdb5 hdb6 hdb7 hdb8 hdb9 > hdb3
> Floppy drive(s): fd0 is 1.44M

Drat!!!!!!!!!! The other WDC rule........
Fastest drive must be master..........do not ask why.
Both of these will report ATA-66.
Cavier drives with the "R" are fakes!!!!!
ATA-66 compatable, not ATA-66 Compliant.........
*************
Side note Fujitsu MPDxxxx drives are in the same class as WDC "R" drives.
MPC -->> ATA-33
MPD -->> ATA-33, but fakes ATA-66.........
MPE -->> ATA-66
*************
If you reverse the drives, I expect the missed interrupt goes away.
If it does not let me know.

Also you have not enable PIIX tuning.
This will force the drives to their correct limits with respect to the
host adapter.

> I am not splitting any WDC drives. Is there any more information that I
> can provide to help, or any suggestions on what to do? Should I just
> split the two drives, one to each ide bus?

This would help, but Memorex CDRW-2216 has an IRQ issues :-(

Andre Hedrick
The Linux ATA/IDE guy

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