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Date:      Thu, 12 May 2016 22:28:57 +0200
From:      Nikolaj Hansen <nikolaj.hansen@barnabas.dk>
To:        "freebsd-stable@freebsd.org" <freebsd-stable@freebsd.org>
Subject:   Re: HP DL 585 / ACPI ID / ECC Memory / Panic
Message-ID:  <5734E789.1010705@barnabas.dk>
In-Reply-To: <CAHEMsqbe-1B7T_x0YDfvmCaGRbMrcve58_YOf1bh-M-h%2BhcV1A@mail.gmail.com>
References:  <57349D5B.50202@barnabas.dk> <57349ED3.7060606@barnabas.dk> <CAHEMsqbe-1B7T_x0YDfvmCaGRbMrcve58_YOf1bh-M-h%2BhcV1A@mail.gmail.com>

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Hi,

On 2016-05-12 21:03, Steven Hartland wrote:
> I wouldn't rule out a bad cpu as we had a very similar issue and that's=

> what it was.
>
> Quick way to confirm is to move all the dram from the disabled CPU to
> one of the other CPUs and see if the issue stays away with the current
> CPU still disabled.

One core is still running seemingly without problems it is only one core =

I disabled not the entire cpu. APIC 1 and 2 I believe are on the same=20
chip. I am not a super CPU design expert, but if the two cores are on=20
the same cpu chip do they not share the same memory bus with this model=20
of the AMD cpu?

>
> If that's the case it's likely the on chip memory controller has
> developed a fault

Or you could just move around two cpu cards and se if the error jumps=20
from apic 1+2(err) to apic 3+4(err). If these are issued in order by=20
FreeBSD? Or is the ordering random?

I suppose I could move all of the boards one step to the right and test=20
it that way regardless.

If it does it is probably a DIMM or, as you say, the memory bus if not=20
it is probably the cpuboard slot on the mainboard itself.

I will try this and post my findings.

Offtopic:

I cannot belive how poor the onboard bios diagnostics are on this server =

compared to my old IBM netfinity 5000.

rgrds

Nikolaj Hansen


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