Fwd: Re: ASUS KGPE-D16 ECC disabled by default - coreboot

1 Jun 2019


      ---------- Forwarded message ---------
From: Matt B matthewwbradley6@gmail.com
Date: Sat, Jun 1, 2019 at 12:17 PM
Subject: Re: [coreboot] Re: ASUS KGPE-D16 ECC disabled by default
To: Kinky Nekoboi kinky_nekoboi@nekoboi.moe
Hi,
So configuring ECC to be on by default in nvram has no effect?
Sincerely,
    -Matt
On Sat, Jun 1, 2019 at 11:08 AM Kinky Nekoboi kinky_nekoboi@nekoboi.moe
wrote:
...
OK i flashed a recompiled version with nvram options enabled.
ECC is enabled by default:
boot_option = Fallback
reboot_counter = 0x0
interleave_chip_selects = Enable
interleave_nodes = Disable
interleave_memory_channels = Enable
max_mem_clock = DDR3-1600
multi_core = Enable
debug_level = Debug
ecc_scrub_rate = 1.28us
slow_cpu = off
nmi = Disable
gart = Enable
power_on_after_fail = On
ECC_memory = Enable
ECC_redirection = Enable
hypertransport_speed_limit = Auto
minimum_memory_voltage = 1.5V
compute_unit_siblings = Enable
cpu_c_states = Enable
cpu_cc6_state = Enable
sata_ahci_mode = Enable
sata_alpm = Disable
dimm_spd_checksum = Enforce
probe_filter = Auto
l3_cache_partitioning = Disable
ieee1394_controller = Enable
iommu = Enable
cpu_core_boost = Enable
ehci_async_data_cache = Enable
experimental_memory_speed_boost = Disable
maximum_p_state_limit = 0xf
Still i need to force the kernel to enable ECC.
Am 01.06.19 um 14:10 schrieb Kinky Nekoboi:
Hello everybody, i just setup an ASUS KGPE-D16 with coreboot in my
fileserver today.
CPU: Opteron 6380 with newest microcode loaded in coreboot
1x 8GB Hynix DDR3 ECC
1x 8GB Samsung DDR3 ECC
ECC works after you force the linux kernel / the amd_edac module to
enable ECC as you can see on this dmesg output :
root@lain:~# dmesg | grep -i edac
[   44.487132] EDAC MC: Ver: 3.0.0
[   44.520632] EDAC amd64: DRAM ECC disabled.
[   44.520670] EDAC amd64: ECC disabled in the BIOS or no ECC
capability, module will not load.
[   44.520670] EDAC amd64: Forcing ECC on!
[   44.520747] EDAC amd64: DRAM ECC disabled on this node, enabling...
[   44.520749] EDAC amd64: Hardware accepted DRAM ECC Enable
[   44.520750] EDAC amd64: F15h detected (node 0).
[   44.520802] EDAC MC: DCT0 chip selects:
[   44.520804] EDAC amd64: MC: 0:     0MB 1:     0MB
[   44.520805] EDAC amd64: MC: 2:     0MB 3:     0MB
[   44.520806] EDAC amd64: MC: 4:     0MB 5:     0MB
[   44.520807] EDAC amd64: MC: 6:     0MB 7:     0MB
[   44.520808] EDAC MC: DCT1 chip selects:
[   44.520809] EDAC amd64: MC: 0:     0MB 1:     0MB
[   44.520810] EDAC amd64: MC: 2:     0MB 3:     0MB
[   44.520811] EDAC amd64: MC: 4:     0MB 5:     0MB
[   44.520812] EDAC amd64: MC: 6:     0MB 7:     0MB
[   44.520813] EDAC amd64: using x4 syndromes.
[   44.520813] EDAC amd64: MCT channel count: 0
[   44.520903] EDAC MC0: Giving out device to module amd64_edac
controller F15h: DEV 0000:00:18.2 (INTERRUPT)
[   44.520904] EDAC amd64: DRAM ECC enabled.
[   44.520916] EDAC amd64: F15h detected (node 1).
[   44.520958] EDAC MC: DCT0 chip selects:
[   44.520959] EDAC amd64: MC: 0:     0MB 1:     0MB
[   44.520961] EDAC amd64: MC: 2:  4096MB 3:  4096MB
[   44.520962] EDAC amd64: MC: 4:     0MB 5:     0MB
[   44.520963] EDAC amd64: MC: 6:     0MB 7:     0MB
[   44.520964] EDAC MC: DCT1 chip selects:
[   44.520965] EDAC amd64: MC: 0:     0MB 1:     0MB
[   44.520966] EDAC amd64: MC: 2:  4096MB 3:  4096MB
[   44.520967] EDAC amd64: MC: 4:     0MB 5:     0MB
[   44.520968] EDAC amd64: MC: 6:     0MB 7:     0MB
[   44.520969] EDAC amd64: using x4 syndromes.
[   44.520969] EDAC amd64: MCT channel count: 2
[   44.521294] EDAC MC1: Giving out device to module amd64_edac
controller F15h: DEV 0000:00:19.2 (INTERRUPT)
[   44.521313] EDAC PCI0: Giving out device to module amd64_edac
controller EDAC PCI controller: DEV 0000:00:18.2 (POLLED)
[   44.521314] AMD64 EDAC driver v3.4.0
Is there an NVRAM Option for ECC and should i rebuild coreboot with
nvram options enabled ?
best regards
kinky_nekoboi

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