James Bottomley wrote:
> On Thu, 2005-04-28 at 15:02 -0500, K.R. Foley wrote:
> 
>>I am attaching the relevant part of the successful boot log from 
>>2.6.12-rc2. I don't have a 2.6.11 boot log handy. I can boot it when I 
>>get home if it will help. I don't know if it is worth mentioning or not, 
>>but I have had to compile in the SCSI drivers since 2.6.12-rc1. Don't 
>>know if it's related to this or not.
>>
>>One other note: I spent enough time tracing this to find that the 
>>message "target1:0:0: Beginning Domain Validation" seems to be generated 
>>by code that is in aic79xx_osm. Is this common code or should this code 
>>not be getting executed for aic7899 cards?
> 
> 
> Actually, the code is in the scsi_transport_spi class.  aic79xx still
> has its own internal domain validation.
> 
> 
>>I'll be happy to try this when I get home.
> 
> 
> Thanks ... it may not work; I don't have access to any drives with the
> problem yours exhibits.
> 
> 
>>Apr 24 23:23:30 porky kernel: scsi1 : Adaptec AIC7XXX EISA/VLB/PCI SCSI HBA DRIVER, Rev 6.2.36
>>Apr 24 23:23:30 porky kernel:         <Adaptec aic7899 Ultra160 SCSI adapter>
>>Apr 24 23:23:30 porky kernel:         aic7899: Ultra160 Wide Channel B, SCSI Id=7, 32/253 SCBs
>>Apr 24 23:23:30 porky kernel: 
>>Apr 24 23:23:30 porky kernel: (scsi1:A:0): 20.000MB/s transfers (20.000MHz, offset 15)
>>Apr 24 23:23:31 porky kernel:   Vendor: SEAGATE   Model: SX118273LC        Rev: 6679
> 
> 
> Yes, that's what I suspected.  Here the internal aic7xxx DV has silently
> configured the drive to be narrow.  Probably because of cable damage or
> something else.
> 
> James
> 
> 
> 
James,

I tried the patch that you sent. It looks like its blowing up now in 
ahc_send_async. At least now we have an oops to look at. I started 
trying to trace through this, but ran out of time. I am sending it on to 
you in hopes that you'll be able to figure this out much quicker than I can.

Thanks,

-- 
    kr