From owner-freebsd-hackers  Sat Nov 24  2:48:20 2001
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Date: Sat, 24 Nov 2001 02:48:12 -0800 (PST)
From: Hiten Pandya <hitmaster2k@yahoo.com>
Subject: Re: Problems with Dual Athlons
To: Tim Wiess <twiess@ahaza.com>
Cc: hackers@freebsd.org
In-Reply-To: <20011123144529.A5628@ahaza.com>
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hi.. no offense... but Tyan motherboards are the one
which cause the whole problem...

did u try to use the kernel option which works around
an SMP Bug... try that one... it solved an issue on my
friend's system and also someone on the archive...

for reference.. the option is:

options			I4B_SMP_WORKAROUND

this should solve your problem...

thanks..
regards...
Hiten Pandya...
<hitmaster2k@yahoo.com>..

--- Tim Wiess <twiess@ahaza.com> wrote:
> Hello all,
> I've recently put together a dual Athlon system, and
> unfortunately so far I
> have had nothing but problems running FreeBSD on it.
> I have gone through many
> of the archives in the hackers, bugs, and smp lists,
> and while most indicate
> that they have had much success running FreeBSD on
> dual Athlons, there have
> been a few cases which were similar to mine.
> Basically, I am unable to run
> the system for more than 30 minutes without getting
> a panic.
> 
> Fatal trap 12: page fault while in kernel mode
> mp_lock = 01000002; cpuid = 1; lapic.id = 00000000
> fault virtual address   = 0xa0a
> fault code              = supervisor read, page not
> present
> instruction pointer     = 0x8:0xc02218e8
> stack pointer           = 0x10:0xff80fbc0
> frame pointer           = 0x10:0xff80fbc0
> code segment            = base 0x0, limit 0xfffff,
> type 0x1b
>                         = DPL 0, pres 1, def32 1,
> gran 1
> processor eflags        = interrupt enabled, resume,
> IOPL = 0
> current process         = Idle
> interrupt mask          = bio   <- SMP: XXX
> 
> The instruction pointer points to the
> worklist_insert routine in the
> soft updates code. Although I don't think that it's
> the file system that's
> really the source of the problem, since I believe
> I've seen different
> instruction pointers listed for the same type of
> panic.
> 
> In the other cases I was reading about, their panics
> were also caused by a
> page fault. Unfortunately it didn't seem like the
> source of the problem was
> ever really located. So I thought I would run this
> by you all and see if
> anyone had any additional thoughts or suggestions.
> 
> For the record, I'm running the 1.2Ghz Athlons on a
> Tyan S2460 board with
> 256MB of 266Mhz DDR-SDRAM.
> 
> thanks
> 
> tim
> 
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=====
regards,
Hiten Pandya
<hitmaster2k@yahoo.com>
<http://geocities.com/hitmaster2k>
----------------------------------------------------
Guys!... stay away from Einstein Junior!
----------------------------------------------------

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