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Date: Fri, 07 May 2004 07:18:47 +0300
From: Petri Helenius <pete@he.iki.fi>
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To: Scott Long <scottl@freebsd.org>
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cc: John Polstra <jdp@polstra.com>
Subject: Re: em(4) problems.
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Scott Long wrote:

>
> I'm looking a t a similar system right now and it definitely looks 
> like an interrupt routing problem, not a driver problem.  The 
> interesting thing is that (with 5.2-current as of two days ago) 
> disabling neither
> ACPI nor APIC helps.  I guess that we might want to get John Baldwin
> involved.
>
I´ve also seen BIOS images which contain different information for 
interrupt routings for mptable and ACPI. Thankfully the vendor was quick 
to rectify that.  Disabling APIC and HTT in the BIOS worked around the 
issues in my case but did not produce the performance I was looking for.

Pete