linux-kernel - [lkp-robot] [media] 859086ae36: kmsg.uvcvideo:Failed_to_query(GET_INFO)UVC_control#on

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Message-ID: <20180316020039.GU8942@yexl-desktop>
Date:   Fri, 16 Mar 2018 10:00:39 +0800
From:   kernel test robot <xiaolong.ye@...el.com>
To:     Edgar Thier <info@...arthier.net>
Cc:     Mauro Carvalho Chehab <mchehab@...pensource.com>,
        Kieran Bingham <kieran.bingham+renesas@...asonboard.com>,
        Laurent Pinchart <laurent.pinchart@...asonboard.com>,
        LKML <linux-kernel@...r.kernel.org>,
        Stephen Rothwell <sfr@...b.auug.org.au>, lkp@...org
Subject: [lkp-robot] [media]  859086ae36:
 kmsg.uvcvideo:Failed_to_query(GET_INFO)UVC_control#on_unit#:-#(exp.#)


FYI, we noticed the following commit (built with gcc-7):

commit: 859086ae3636eae0bf9f0fbbce2daf4d41ae9474 ("media: uvcvideo: Apply flags from device to actual properties")
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: 1
	cluster: cs-localhost
	test: SCTP_STREAM
	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: 4 threads Intel(R) Core(TM) i5-3317U CPU @ 1.70GHz with 4G memory

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


[   76.108373] uvcvideo: Failed to query (GET_INFO) UVC control 11 on unit 1: -32 (exp. 1).


To reproduce:

        git clone https://github.com/intel/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

View attachment "config-4.16.0-rc1-00036-g859086a" of type "text/plain" (165994 bytes)

View attachment "job-script" of type "text/plain" (7165 bytes)

Download attachment "dmesg.xz" of type "application/x-xz" (19508 bytes)

View attachment "netperf" of type "text/plain" (617 bytes)

View attachment "job.yaml" of type "text/plain" (4755 bytes)

View attachment "reproduce" of type "text/plain" (346 bytes)