linux-kernel - Re: [lkp-robot] [EDAC] 5729ee3edf: kmsg.EDAC_sbridge:Failed_to_register_device_with

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Date:   Mon, 10 Jul 2017 05:40:00 +0200
From:   Borislav Petkov <bp@...e.de>
To:     kernel test robot <xiaolong.ye@...el.com>
Cc:     Chris Metcalf <cmetcalf@...lanox.com>,
        LKML <linux-kernel@...r.kernel.org>, lkp@...org,
        Tony Luck <tony.luck@...el.com>
Subject: Re: [lkp-robot] [EDAC]  5729ee3edf:
 kmsg.EDAC_sbridge:Failed_to_register_device_with_error

On Mon, Jul 10, 2017 at 10:42:17AM +0800, kernel test robot wrote:
> commit: 5729ee3edf50e4627ab216a170a4748a2d62dd12 ("EDAC: Remove EDAC_MM_EDAC")
> https://git.kernel.org/cgit/linux/kernel/git/bp/bp.git edac-for-4.12-stub

So this is an old branch, lemme kill it.

> in testcase: unixbench
> with following parameters:
> 
> 	runtime: 300s
> 	nr_task: 1
> 	test: pipe
> 	cpufreq_governor: performance
> 
> test-description: UnixBench is the original BYTE UNIX benchmark suite aims to test performance of Unix-like system.
> test-url: https://github.com/kdlucas/byte-unixbench
> 
> 
> on test machine: 88 threads Intel(R) Xeon(R) CPU E5-2699 v4 @ 2.20GHz with 64G memory
> 
> caused below changes (please refer to attached dmesg/kmsg for entire log/backtrace):
> 
> 
> kern  :err   : [   32.919091] EDAC sbridge: Couldn't find mci handler
> kern  :err   : [   32.919092] EDAC sbridge: Couldn't find mci handler
> kern  :err   : [   32.919095] EDAC sbridge: Failed to register device with error -22.

AFAIR, we talked about this already. You need to disable CONFIG_EDAC_GHES
temporarily as it registers before the sbridge module.

kern  :info  : [   26.382523] ghes_edac: This EDAC driver relies on BIOS to enumerate memory and get error reports.
kern  :info  : [   26.392439] ghes_edac: Unfortunately, not all BIOSes reflect the memory layout correctly.
kern  :info  : [   26.401574] ghes_edac: So, the end result of using this driver varies from vendor to vendor.
kern  :info  : [   26.411001] ghes_edac: If you find incorrect reports, please contact your hardware vendor
kern  :info  : [   26.420137] ghes_edac: to correct its BIOS.
kern  :info  : [   26.424812] ghes_edac: This system has 8 DIMM sockets.
kern  :info  : [   26.430737] EDAC MC0: Giving out device to module ghes_edac.c controller ghes_edac: DEV ghes (INTERRUPT)
kern  :info  : [   26.441401] EDAC MC1: Giving out device to module ghes_edac.c controller ghes_edac: DEV ghes (INTERRUPT)
kern  :info  : [   26.452619] GHES: APEI firmware first mode is enabled by APEI bit and WHEA _OSC.

We're working on fixing this properly but the fix is not ready yet.

Thanks.

-- 
Regards/Gruss,
    Boris.

SUSE Linux GmbH, GF: Felix Imendörffer, Jane Smithard, Graham Norton, HRB 21284 (AG Nürnberg)
--