Date: Fri, 24 Jul 1998 06:54:44 -0500 From: Doug Ledford <dledford@dialnet.net> To: Frederic Baumann <baumann@ilog.fr> Cc: aic7xxx@FreeBSD.ORG Subject: Re: hanging with a 2940AU Message-ID: <35B87604.7543C510@dialnet.net> References: <mk7m13r9c5.fsf@gallieni.ilog.fr>
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Frederic Baumann wrote:
>
> This is my first post to this mailing list.
>
> I've just bought a Nikon CoolScan II scanner, and a SCSI board to plug
> it in my PC. I've tried both a Tekram DC390U, and now an Adaptec
> 2940AU.
>
> The Tekram works, but only before I start XFree86 (using a PCI video
> board STB Velocity 3D) !!
>
> For the 2940AU, I've tried with two versions of software :
>
> * Linux 2.0.32 (driver aic7xxx)
> * Linux 2.0.35 patched for driver aic7xxx version 5.1.0pre5.
>
> The results are worst than with the Tekram: with 2.0.32, I get an
> infinite loop of reset/abort SCSI messages. With 2.0.35 I get the
> following (and then the kernel is stuck) :
>
> command : insmod aic7xxx aic7xxx='verbose:0x1FFFF'
>
> (this text has been copied by hand, so there may be some
> differences with the original output, regarding the spaces)
[ snip ]
The last time I saw problems like this on a 2940AU card (or any other 785x
or 786x based card for that matter), it was one of two things:
1. Bad PCI slot on the motherboard that causes the PCI BIOS
to munge your card settings and certain data transfers.
2. Bad motherboard/PCI configuration.
Things I've seen done to fix the problem:
1. Move the controller to a different PCI slot.
2. Check the motherboard BIOS for any PCI settings related
to cache line size and set that to 8 dwds if it has it.
3. Replace the motherboard if it uses the VIA chipset and
certain Adaptec hardware (I don't have a list here, just
an "If it doesn't work, then get rid of the VIA chipset
and it will probably start working" answer).
Anyway, the fact that starting the X server causes the Tekram to quit
working is almost a dead giveaway in my book that your motherboard is doing
something brain dead and allowing MMAPed regions of the cards to overlap or
other similarly stupid stuff. I would look into that.
--
Doug Ledford <dledford@dialnet.net>
Opinions expressed are my own, but
they should be everybody's.
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