Hi Guennadi, I think this problem needs to be handled before merging the patch. On Tuesday, 8 August 2017 05:18:46 EEST kernel test robot wrote: > FYI, we noticed the following commit: > > commit: c698cbbd35daebf58ced376bb6f98dd013e6cf9e ("uvcvideo: send a control > event when a Control Change interrupt arrives") url: > https://github.com/0day-ci/linux/commits/Guennadi-Liakhovetski/UVC-fix-queu > e_setup-to-check-the-number-of-planes/20170730-123108 base: > git://linuxtv.org/media_tree.git master > > in testcase: netperf > with following parameters: > > ip: ipv4 > runtime: 300s > nr_threads: 200% > 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): > > > [ 74.743574] uvcvideo: Found UVC 1.00 device Lenovo EasyCamera (5986:0295) > [ 74.744636] uvcvideo: Failed to query (GET_INFO) UVC control 11 on unit > 1: -32 (exp. 1). [ 74.745523] input: Ideapad extra buttons as > /devices/pci0000:00/0000:00:1f.0/PNP0C09:00/VPC2004:00/input/input15 [ > 74.746246] uvcvideo: Failed to query (GET_INFO) UVC control 13 on unit 1: > -32 (exp. 1). > > > > 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 -- Regards, Laurent Pinchart