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Date:      Wed, 12 Nov 2003 11:29:10 -0500 (EST)
From:      John Baldwin <jhb@FreeBSD.org>
To:        =?utf-8?B?WGluIExJL+adjumRqw==?= <delphij@frontfree.net>
Cc:        current@freebsd.org
Subject:   RE: Recent -CURRENT panic (New interrupt code related?); backtrace included
Message-ID:  <XFMail.20031112112910.jhb@FreeBSD.org>
In-Reply-To: <20031112060407.931085299@ftp.bjpu.edu.cn>

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On 12-Nov-2003 Xin LI/李鑫 wrote:
> Hello,
> 
> On recently compiled kernels, I often get panics which seemed to be interrupt related. Among
> other things, almost all of them claims that "Kernel trap 30", which seemd to be strange. 
> 
> The kernel I am currently running, namely,
> 
> FreeBSD servers.frontfree.net 5.1-CURRENT FreeBSD 5.1-CURRENT #5: Sat Oct 25 22:27:05 CST 2003   
> delphij@servers.frontfree.net:/usr/obj/usr/src/sys/SERVERS  i386
> 
> seemed to be ok, however, when I am trying the new kernels (you see, 14 compile and run
> attempts:), it exhibits incredible instablity.
> 
> FreeBSD 5.1-CURRENT #19: Wed Nov 12 12:17:28 CST 2003
>     delphij@servers.frontfree.net:/usr/obj/usr/src/sys/SERVERS
> 
> Here is one of the crashdumps I caught. The machine was configured with a UP kernel, with
> DEVICE_POLLING enabled. There are two networking adapters attached to it, a fxp and a dc, and the
> machine itself act as a NAT gateway. The network load is not very heavy. If you think the
> backtrace helpful, or need any more information, please write me and I will try everything I can
> to help.

Do you have 'device apic' enabled?  If so, can you try using 'options NO_MIXED_MODE'.
Barring that, can you try http://www.FreeBSD.org/~jhb/patches/spurious.patch and
if that doesn't work http://www.FreeBSD.org/~jhb/patches/atpic.patch?

-- 

John Baldwin <jhb@FreeBSD.org>  <><  http://www.FreeBSD.org/~jhb/
"Power Users Use the Power to Serve!"  -  http://www.FreeBSD.org/



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