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Date:      Fri, 5 Feb 1999 08:47:15 +0200 (SAT)
From:      John Hay <jhay@mikom.csir.co.za>
To:        julian@whistle.com (Julian Elischer)
Cc:        hackers@FreeBSD.ORG
Subject:   Re: Seen fxp or mbuf problems?
Message-ID:  <199902050647.IAA17011@zibbi.mikom.csir.co.za>
In-Reply-To: <36BA4603.1CFBAE39@whistle.com> from Julian Elischer at "Feb 4, 99 05:14:43 pm"

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> Anyone seen bugs in fxp driver or mbuf related code recently?
> 
> Here is a crash dump from a system about 10 days old (3.x series)
> 
> We are willing to believe that we've done this (we do enough 
> networking stuff but I'm just looking to see if there
> is anyone else that has seen this.
> 

I have seen something like this here while we were developing a piece
of network code of our own. It was because there was a mbuf alloc
that wasn't protected with at least splimp(). Remember that all the
network driver interrupt routines will allocate mbufs and they run
at splimp(), so all other places have to run at splimp() also.

Anyway just a guess, it might not be your problem, but it was definitely
ours. :-)

John
-- 
John Hay -- John.Hay@mikom.csir.co.za

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