Re: Machine lock-ups while scanning. HP scanjet 5P/BusLogic Flashpoint

Brian Macy (bmacy@sunshinecomputing.com)
Wed, 25 Aug 1999 21:36:58 -0700

> I've had this problem occur in kernels as old as 2.0.26 and as recent as
> 2.2.10.
> If it's an sg problem I'm inclined to think it should happen on other
> setups aswell, but since I haven't heared anybody else bring this up, I
> guess it's a BusLogic-only problem.

Yeah... the sg driver has changed significantly since then.

> Leonard N. Zubikoff, creator of the BusLogic driver, has remained
> unresponsive to my pleas for help.

I'll have to give it a try.

> Well, this is greatly hindering (i.e. making it impossible) my ability
> to scan *AT ALL*!

Me too... though I have little scanning to do except for SANE related
development.

> It's reached the point where I can reliably make the machine Oops during
> a scan.

Any scan? Can you make it not oops? I have only see random machine or sg
lockups that happen after one or more scans.

> If anybody has some good hints on how to trap all that output that flies
> across the screen so I can submit it to developers that know how to deal
> with it, I'm all ears.

I'm sure there is a way to add debug to the buslogic driver.

> And, like you, I'm getting myself a new SCSI adapter *JUST BECAUSE OF
> THIS*.
> I shouldn't have to, but if the developer seems uninterested and I'm
> uncapable...

Out of curiousity...
- Do you have any other SCSI controller in the system?
- Are you using IDE?
- Is the BusLogic adaptor the only device on it's IRQ?
- Is your system SMP?
- What motherboard are you using?

I ask as I had perfectly stable scanning with a UP SuperMicro P6SBA
motherboard with IDE drives and the BusLogic card being the only SCSI
card and on it's own IRQ.

Brian Macy

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