Re: Tulip driver bug in 2.4.17 (fwd)

Ben Greear (greearb@candelatech.com)
Fri, 18 Jan 2002 08:06:16 -0700


David Lang wrote:

> On Thu, 17 Jan 2002, Ben Greear wrote:
>
>
>>David Lang wrote:
>>
>>
>>>On Thu, 17 Jan 2002, Ben Greear wrote:
>>>
>>>
>>>
>>>>You're not using a PCI extender/riser card, are you?
>>>>
>>>>
>>>Yes, (it's in a 2u rackmount case). it's a low right-angle extender
>>>
>>
>>You're screwed :)
>>
>>It seems to be a hardware/PCI problem. I replaced 4-port NICS (the DFE-570-TX),
>>motherboards, cpus, entire chassis...the problem followed the riser cards.
>>
>
> then why does the same card work properly with the old driver? if it's
> truely a hardware problem then all versions of the driver should fail. if
> it's possible for one version to work around the problem (or avoid
> triggering it) then other versions should be able to.

That is interesting. (For me, I had some older, slightly slower systems
work, while the newer ones failed. I believe I tried older drivers on my
new hardware, but I'm not sure...) The only excuse I could come up with is
that the newer drivers/machines could utilize the PCI bus faster and
that somehow caused the lockup. Because even sysreq didn't work, I can't
imagine what a driver, buggy or otherwise, could do to lock the system
like it does...

>
>
>>To debug, take off the face-plates of your NICS and run them in your box
>>w/out the riser..or take the MB completely out of the case. I'll bet
>>you a dozen realtec nics that that will fix your lockup problem! :)
>>
>>While you're doing that...order a $54 riser from adexelec.com. Their
>>riser fixed the problem for me. If the riser isn't obvious on
>>Adex's page, let me know and I'll find the version of the one I got.
>>
>>Btw, if you find a butter-fly riser for a 1U chassis that works, let
>>me know..cause I see the same problem in my 1U servers...
>>
>>Enjoy,
>>Ben
>>
>>
>>--
>>Ben Greear <greearb@candelatech.com> <Ben_Greear AT excite.com>
>>President of Candela Technologies Inc http://www.candelatech.com
>>ScryMUD: http://scry.wanfear.com http://scry.wanfear.com/~greear
>>
>>
>>
> -
> To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at http://vger.kernel.org/majordomo-info.html
> Please read the FAQ at http://www.tux.org/lkml/
>
>

-- 
Ben Greear <greearb@candelatech.com>       <Ben_Greear AT excite.com>
President of Candela Technologies Inc      http://www.candelatech.com
ScryMUD:  http://scry.wanfear.com     http://scry.wanfear.com/~greear

- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/