Re: cpu warning?

[Chuck Coffing <clc%alum.mit.edu@localhost>]

On Fri, Aug 27, 2010 at 10:01:23AM +0800, Rui-Xiang Guo wrote:
>On Thu, Aug 26, 2010 at 06:29:33PM +0000, Jonathan A. Kollasch wrote:
>> On Thu, Aug 26, 2010 at 10:24:03PM +0800, Rui-Xiang Guo wrote:
>> > Hi, all.
>> > Is there anyone know what kind of this issue?
>> > [...]
>> > NetBSD 5.1_RC3 (GENERIC) #0: Sat Jun 12 20:26:01 UTC 2010
>> >         
>> > builds%b8.netbsd.org@localhost:/home/builds/ab/netbsd-5-1-RC3/amd64/201006130031Z-
>> > obj/home/builds/ab/netbsd-5-1-RC3/src/sys/arch/amd64/compile/GENERIC
>> > total memory = 991 MB
>> > avail memory = 945 MB
>> > timecounter: Timecounters tick every 10.000 msec
>> > timecounter: Timecounter "i8254" frequency 1193182 Hz quality 100
>> > SMBIOS rev. 2.3 @ 0xf0000 (33 entries)
>> >     ( )
>> > mainbus0 (root)
>> > cpu0 at mainbus0 apid 0: AMD 686-class, 1808MHz, id 0x20f42
>> > cpu0: AMD PowerNow! Technology 1800 MHz
>> > cpu0: available frequencies (Mhz): 800 1600 1800
>> > cpu0: erratum 89 present
>> > cpu0: WARNING: errata present, BIOS upgrade may be
>> > cpu0: WARNING: necessary to ensure reliable operation
>> > [...]
>> 
>> I'm fairly sure it's nothing to worry about.
>> All my socket 754 machine exhibit this, and have
>> no problems.
>
>I see. It also exists on my socket 939 machine.
>
>-rxg

Curiosity got the best of me:

89 "Potential Deadlock With Locked Transactions"
page 49:
http://support.amd.com/us/Processor_TechDocs/25759.pdf

-- 
Chuck