[Pkg-xen-devel] Bug#810964: [Xen-devel] [BUG] EDAC infomation partially missing

[Elliott Mitchell]

I haven't yet done as much experimentation as Andreas Pflug has, but I
can confirm I'm also running into this bug with Xen 4.4.1.

I've only tried Linux kernel 3.16.43, but as Dom0:

EDAC MC: Ver: 3.0.0
AMD64 EDAC driver v3.4.0
EDAC amd64: DRAM ECC enabled.
EDAC amd64: NB MCE bank disabled, set MSR 0x0000017b[4] on node 0 to enable.
EDAC amd64: ECC disabled in the BIOS or no ECC capability, module will not load.
AMD64 EDAC driver v3.4.0
EDAC amd64: DRAM ECC enabled.
EDAC amd64: NB MCE bank disabled, set MSR 0x0000017b[4] on node 0 to enable.
EDAC amd64: ECC disabled in the BIOS or no ECC capability, module will not load.

Whereas directly booting:

EDAC MC: Ver: 3.0.0
AMD64 EDAC driver v3.4.0
EDAC amd64: DRAM ECC enabled.
EDAC amd64: F10h detected (node 0).
EDAC MC: DCT0 chip selects:
EDAC amd64: MC: 0:     0MB 1:     0MB
EDAC amd64: MC: 2:     0MB 3:     0MB
EDAC amd64: MC: 4:     0MB 5:     0MB
EDAC amd64: MC: 6:     0MB 7:     0MB
EDAC MC: DCT1 chip selects:
EDAC amd64: MC: 0:  4096MB 1:  4096MB
EDAC amd64: MC: 2:     0MB 3:     0MB
EDAC amd64: MC: 4:     0MB 5:     0MB
EDAC amd64: MC: 6:     0MB 7:     0MB
EDAC amd64: using x4 syndromes.
EDAC amd64: MCT channel count: 2
EDAC amd64: CS0: Unbuffered DDR3 RAM
EDAC amd64: CS1: Unbuffered DDR3 RAM
EDAC MC0: Giving out device to module amd64_edac controller F10h: DEV 0000:00:18.2 (INTERRUPT)
EDAC PCI0: Giving out device to module amd64_edac controller EDAC PCI controller: DEV 0000:00:18.2 (POLLED)

I have not tried force-enabling ECC checking.  Since I place high value
on my data, I rate this as a rather important bug.


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