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

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Date:   Wed, 21 Mar 2018 12:32:07 +0200
From:   Laurent Pinchart <laurent.pinchart@...asonboard.com>
To:     kernel test robot <xiaolong.ye@...el.com>
Cc:     Edgar Thier <info@...arthier.net>,
        Mauro Carvalho Chehab <mchehab@...pensource.com>,
        Kieran Bingham <kieran.bingham+renesas@...asonboard.com>,
        LKML <linux-kernel@...r.kernel.org>,
        Stephen Rothwell <sfr@...b.auug.org.au>, lkp@...org
Subject: Re: [lkp-robot] [media]  859086ae36: kmsg.uvcvideo:Failed_to_query(GET_INFO)UVC_control#on_unit#:-#(exp.#)

Hello,

On Friday, 16 March 2018 04:00:39 EET kernel test robot wrote:
> 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).

Just for the record, Kieran is working on this.

> 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

-- 
Regards,

Laurent Pinchart