YhLu YhLu@tyan.com writes:
Then in LinuxBIOS We can access the memory in 64 bit mode directly.
We already do, on the Opteron.
And maybe do the memory check and test. Memory problem is a big problem in system integration.
Unless you spend days at it you cannot do a good memory check/test. I don't want to wait days while my system boots. A cursory check That verifies the memory doesn't totally suck is ok. But I don't want to see anything that conveys the impression that LinuxBIOS has actually checked the memory.
The best tests I know of involve monitoring for ECC errors while the system is being stressed.
Some time 8 ways system, every cpu has 4 dimm, total memay will be 4G*4*8=128G.
I'm not certain you can plug that many 4G dimms into an Opteron. At the very least they are a challenge to come by...
As for setting up and debugging memory the first system with LinuxBIOS on the Opteron Lighting had 6TB of ram...
Eric