Messages in this thread | | | Date | Tue, 15 Jun 2010 08:44:19 +0200 | From | Andi Kleen <> | Subject | Re: Hardware Error Kernel Mini-Summit |
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> There was a case mentioned at the collaboration summit > meeting where a BIOS bug mis-reported whether ECC was > enabled - claiming it was on, when in fact it was off.
Yes I heard about that, but since it's not a single bit setting there are lots of different ways it could be broken in theory.
To check it you really need to have a tool that knows about all the registers and checks them all.
It's a bit like checking if someone speaks a foreign language by asking them a single question with a one letter answer.
> of the chipset specific code against each other. An EDAC > driver that tells you that ECC is enabled might be lying too, > if it is looking at the wrong bit or the wrong register.
Yep.
It's asking a question with a one word answer where you don't know the correct answer.
-Andi
-- ak@linux.intel.com -- Speaking for myself only.
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