aic7xxx SMP lockup

[Doug Ledford]

Heinz Mauelshagen wrote:
> 
> Have a hard lockup on a 2 * PII/350 ASUS P2B-DS system (Linux 2.1.120,
> aic7xxx 5.1.0-pre10), if i use 1 interrupt for 2 * 2940UW and a 2940W.
> The onboard 7890 uses a different interrupt.
> Each scsi host has several disks and/or cd roms and/or tapes connected.
> 
> Can reproduce the lockup after each reboot by fsck'ing a 10G fs.
> 
> If let the 2940(U)Ws use different interrupts everything seems to be o.k.
> 
> Did i miss that sharing of an IRQ by several aic7xxx driven host
> adapters isn't possible in SMP envorinments?
> 
> BTW: a UP PPro didn't lockup in the same scsi host/disk etc. environment
>      sharing 1 irq.
> 
> Any hints?

Not yet.  I think's it's an IO-APIC problem, but we are working on it.

-- 

 Doug Ledford  <dledford at dialnet.net>
  Opinions expressed are my own, but
     they should be everybody's.

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