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SubjectRe: Patch for aic7xxx 2.4.0 test12 hang

>> There is also a known issue with U160 modes and the currently
>> embedded aic7xxx driver.
>
>
> That's true the problem is the TCQ command seems to be sequencing wrong.
>
>
>> You might want to try the Adaptec
>> supported driver from here:
>>
>> http://people.FreeBSD.org/~gibbs/linux/
>>
>> 6.09 BETA should be released later today.

Just a little FYI, I wanted to point out that 6.08 BETA fixed a problem
I've been having since the 2.4.0-test series on a machine with the
following adaptec integrated controller:
Bus 4, device 7, function 0:
SCSI storage controller: Adaptec 7899P (rev 1).
IRQ 19.
Master Capable. Latency=64. Min Gnt=40.Max Lat=25.
I/O at 0x5000 [0x50ff].
Non-prefetchable 64 bit memory at 0xf7e00000 [0xf7e00fff].
Bus 4, device 7, function 1:
SCSI storage controller: Adaptec 7899P (#2) (rev 1).
IRQ 16.
Master Capable. Latency=64. Min Gnt=40.Max Lat=25.
I/O at 0x5400 [0x54ff].
Non-prefetchable 64 bit memory at 0xf7f00000 [0xf7f00fff].

This is an Ultra160 controller I believe (or at least thats what it says
during bootup.)

Before I applied this patch it would print garbage for the
Vendor/Rev/Type/ANSI SCSI revision of my hard disk. With this patch it
does not.

I unfortunately know very little about SCSI drivers, so I can't say
exactly what causes this problem with the stock 2.4.0 adaptec driver.

-Jeff

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