Problems with SCSI and Tyan S5350...

[Scott Long]

John Von Essen wrote:
> I sure hope I am not alone in this...
> 
> I have a Tyan S5350 motherboard, EM64T Nocona, 7320 chipset. I am having 
> great difficulty getting it to work with SCSI drives. I have tried both 
> Adaptec 19160 and 2120S SCSI-RAID.
> 
> Basically, when I get to "Waiting for scsi devices to settle".... about 
> 30 seconds goes by, then I get a bunch of COMMAND TIMEOUTS (either ahc0 
> or aac0). Eventually, the card dumps, and I get some stuff about SCB 
> timeout, SCB reset, then Infinite interrupt loop, INTSTAT = 0ahc0: 
> Timedout SCBs already completed, interrupts may not be functioning.
> 
> I'm sorry I dont have the exact output, but it is tough to jot 
> everything down by hand. Tomorrow I can put a console on it, and paste 
> the errors.
> 
> I saw some similar output in the archives. Some of the resolution was 
> disabling ACPI, but it was for a different motherboard.
> 
> I have tried to disable ACPI, no effect. I have also tried playing with 
> int13 enable/disable, no luck. I have tried multiple cards, multiple 
> cables, and multiple disks. Is this just a bad compatibility issue 
> between FreeBSD and the Tyan board?
> 
> The Bios does complain about "no int13 drive support" after the 2120S 
> initialize, not sure what that is all about.
> 
> Any thoughts would be appreciated.
> 
> Thanks
> John
> 

You don't say which version of FreeBSD you're trying.  In any case, I
don't have much experience with the 7320 chipset, just the 7520.  There
might be something weird about the interrupt routing on those.

Scott