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Date:      Mon, 11 Jan 1999 19:29:35 -0500 (EST)
From:      Alfred Perlstein <bright@hotjobs.com>
To:        freebsd-smp@FreeBSD.ORG
Subject:   Re: Fatal Trap
Message-ID:  <Pine.BSF.4.05.9901111928140.84303-100000@bright.fx.genx.net>
In-Reply-To: <XFMail.990111170851.greg@uswest.net>

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On Mon, 11 Jan 1999, Greg Rowe wrote:

> 
> Fatal trap 12: page fault while in kernel mode
> mp_lock = 01000002; cpuid=1; lapic.id = 01000000(I've also seen it for cpuid0)
> fault virtual address = 0x0
> fault code  =  supervisor write, page not present
> instruction pointer  =  0x8:0xf0216357
> stack pointer  =  0x10:0xff618ce8
> frame pointer  =  0x10:0xff618d0c
> code segment  =   base 0x0, limit 0xfffff, type 0x1b
>               =   DPL 0, pres 1, def32 1, gran1
> processor eflags = interrupt enabled, resume, IOPL = 0
> current process  = 243 (tar)
> interrupt mask = net tty bio cam <-SMP:XXX

why is this XXX?  is it just an indication that using spl() is a bad thing
for SMP and that movement away from the spl() model of interupt
servicing is a good thing?

-Alfred

> kernel: type 12 trap, code 0
> Stopped at  generic_bzero+0xf:    repe stosl    %es:(%edi)



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