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From: John Baldwin <jhb@FreeBSD.org>
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Date: Wed, 24 Nov 2004 10:21:15 -0500
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cc: Vulpes Velox <v.velox@vvelox.net>
Subject: Re: interrupt storm and atapicam
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On Wednesday 24 November 2004 02:14 am, Vulpes Velox wrote:
> Just got around to adding a DVD+RW drive to my machine today. I went
> to add atapicam to the system. When I recompiled the kernel and
> rebooted I got an error about a interrupt storm on atapci1 and it
> freezes.
>
>
>
>
>
> dmesg...
> Copyright (c) 1992-2004 The FreeBSD Project.
> Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993,
> 1994        The Regents of the University of California. All rights
> reserved. FreeBSD 5.3-STABLE #1: Wed Nov 24 00:16:44 CST 2004
>     root@vixen42:/usr/obj/usr/src/sys/GENERIC
> Timecounter "i8254" frequency 1193182 Hz quality 0
> CPU: AMD Athlon(tm) XP 2000+  (1750.01-MHz 686-class CPU)
>   Origin = "AuthenticAMD"  Id = 0x680  Stepping = 0
>
> Features=0x383f9ff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,SEP,MTRR,PGE,MC
> A,CMOV,PAT,PSE36,MMX,FXSR,SSE>  AMD
> Features=0xc0400000<AMIE,DSP,3DNow!> real memory  = 1073676288 (1023
> MB) avail memory = 1041117184 (992 MB)
>     ACPI-0277: *** Warning: Invalid checksum in table [FACP] (4e, sum
> a5 is not zero)

Try disabling ACPI.

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