FYI, we noticed the following commit (built with gcc-7): commit: 60649d4e0af6c26b6c423dea9c57f39e823fc0c5 ("can: remove obsolete empty ioctl() handler") https://kernel.googlesource.com/pub/scm/linux/kernel/git/next/linux-next.git master in testcase: ltp with following parameters: test: can test-description: The LTP testsuite contains a collection of tools for testing the Linux kernel and related features. test-url: http://linux-test-project.github.io/ on test machine: qemu-system-x86_64 -enable-kvm -cpu SandyBridge -smp 2 -m 8G caused below changes (please refer to attached dmesg/kmsg for entire log/backtrace): If you fix the issue, kindly add following tag Reported-by: kernel test robot <rong.a.chen(a)intel.com&gt; <<<test_start>>> tag=can_rcv_own_msgs stime=1564179096 cmdline="can_run_tests.sh can_rcv_own_msgs" contacts="" analysis=exit <<<test_output>>> SIOCGIFINDEX: Operation not supported can_rcv_own_msgs 1 TFAIL: Test can_rcv_own_msgs FAIL incrementing stop <<<execution_status>>> initiation_status="ok" duration=0 termination_type=exited termination_id=1 corefile=no cutime=1 cstime=3 <<<test_end>>> To reproduce: # build kernel cd linux cp config-5.3.0-rc1-00114-g60649d4 .config make HOSTCC=gcc-7 CC=gcc-7 ARCH=x86_64 olddefconfig prepare modules_prepare bzImage modules make HOSTCC=gcc-7 CC=gcc-7 ARCH=x86_64 INSTALL_MOD_PATH=<mod-install-dir> modules_install cd <mod-install-dir> find lib/ | cpio -o -H newc --quiet | gzip > modules.cgz git clone https://github.com/intel/lkp-tests.git cd lkp-tests bin/lkp qemu -k <bzImage> -m modules.cgz job-script # job-script is attached in this email Thanks, Rong Chen