[LinuxBIOS] Kernel crash output: Memtest86+ output
eric at zyxod.com
Thu Apr 27 07:20:59 CEST 2006
Ack, you're right -- was thinking ROM, but typed CMOS. Well, makes my
RAM tests pointless under LB. I don't think it's a HW RAM problem, as
it tested just fine under factory BIOS.
Richard Smith wrote:
>> LinuxBIOS + filo
>> Errors from C0000 to EFEFC
>> Walltime Cached RsvdMem MemMap Cache ECC Test
>> 224M 0 LinuxBIOS on off std
>> Obviously, memtest86 isn't skipping the cmos -- I managed to pause it just
>>as it hit C000, and looked at the error result -- AA 55 was in there. It's
>>reading the cmos, and failing to test it, as it should.
>That range is not CMOS. CMOS is 128 bytes and you access it via
>portIO. Memtest86 never hits CMOS. Those are your legacy video bios
>and other shadow area ranges. Depending on how they are enabled by
>your setup code they may not be writeable.
>Doubtfull its a problem though as Linux won't use those area for RAM.
>Richard A. Smith
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