RE: [lkp-robot] [EDAC, sb_edac] e2f747b1f4: kmsg.EDAC_sbridge:Failed_to_register_device_with_error

[Zhuo, Qiuxu]

Hi Xiaolong,

   Thanks!  I'll look at it, and feedback ASAP.

BR
qiuxu

-----Original Message-----
From: lkp-robot-request@xxxxxxxxxxxxxxxxx [mailto:lkp-robot-request@xxxxxxxxxxxxxxxxx] On Behalf Of Ye, Xiaolong
Sent: Monday, June 5, 2017 2:23 PM
To: Zhuo, Qiuxu <qiuxu.zhuo@xxxxxxxxx>
Cc: Borislav Petkov <bp@xxxxxxx>; linux-edac <linux-edac@xxxxxxxxxxxxxxx>; LKML <linux-kernel@xxxxxxxxxxxxxxx>; Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx>; lkp@xxxxxx
Subject: [lkp-robot] [EDAC, sb_edac] e2f747b1f4: kmsg.EDAC_sbridge:Failed_to_register_device_with_error


FYI, we noticed the following commit:

commit: e2f747b1f42a2f6b0cf5416be1684c1b94a42f0f ("EDAC, sb_edac: Assign EDAC memory controller per h/w controller") https://git.kernel.org/cgit/linux/kernel/git/next/linux-next.git master

in testcase: netperf
with following parameters:

	ip: ipv4
	runtime: 300s
	nr_threads: 25%
	cluster: cs-localhost
	test: TCP_CRR
	cpufreq_governor: performance

test-description: Netperf is a benchmark that can be use to measure various aspect of networking performance.
test-url: http://www.netperf.org/netperf/


on test machine: 16 threads Intel(R) Xeon(R) CPU D-1541 @ 2.10GHz with 8G memory

caused below changes (please refer to attached dmesg/kmsg for entire log/backtrace):


kern  :err   : [   17.309988] EDAC sbridge: Some needed devices are missing
kern  :info  : [   17.504765] ast 0000:07:00.0: fb0: astdrmfb frame buffer device
kern  :info  : [   17.533508] EDAC MC: Removed device 0 for sbridge_edac.c Broadwell SrcID#0_Ha#0: DEV 0000:ff:12.0
kern  :err   : [   17.533529] EDAC sbridge: Couldn't find mci handler
kern  :err   : [   17.533530] EDAC sbridge: Failed to register device with error -19.




To reproduce:

        git clone https://github.com/01org/lkp-tests.git
        cd lkp-tests
        bin/lkp install job.yaml  # job file is attached in this email
        bin/lkp run     job.yaml



Thanks,
Xiaolong