FYI, we noticed the following commit: commit: 918bab1b4bf6bc7cf8df454ff5840f82e3b319c9 ("uvcvideo: send a control event when a Control Change interrupt arrives") url: https://github.com/0day-ci/linux/commits/Guennadi-Liakhovetski/uvcvideo-a... base: git://linuxtv.org/media_tree.git master in testcase: netperf with following parameters: ip: ipv4 runtime: 300s nr_threads: 25% 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): [ 16.630924] uvcvideo: Found UVC 1.00 device Lenovo EasyCamera (5986:0295) [ 16.631172] libata version 3.00 loaded. [ 16.632185] bcma: bus0: Core 1 found: IEEE 802.11 (manuf 0x4BF, id 0x812, rev 0x18, class 0x0) [ 16.632641] uvcvideo: Failed to query (GET_INFO) UVC control 11 on unit 1: -32 (exp. 1). [ 16.632782] uvcvideo: Failed to query (GET_INFO) UVC control 13 on unit 1: -32 (exp. 1). [ 16.634740] bcma: bus0: Core 2 found: PCIe (manuf 0x4BF, id 0x820, rev 0x11, class 0x0) To reproduce: git clone git://git.kernel.org/pub/scm/linux/kernel/git/wfg/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