FYI, we noticed the following commit (built with gcc-7): commit: 18e589f6a0591296a9483aa91187f2ccc4e0b616 ("selftest: timers: Tweak raw_skew to SKIP when ADJ_OFFSET/other clock adjustments are in progress") https://git.kernel.org/cgit/linux/kernel/git/stable/linux-stable.git linux-4.9.y in testcase: kernel-selftests with following parameters: group: kselftests-03 test-description: The kernel contains a set of "self tests" under the tools/testing/selftests/ directory. These are intended to be small unit tests to exercise individual code paths in the kernel. test-url: https://www.kernel.org/doc/Documentation/kselftest.txt 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; KERNEL SELFTESTS: linux_headers_dir is /usr/src/linux-headers-x86_64-rhel-7.6-18e589f6a0591296a9483aa91187f2ccc4e0b616 2020-04-13 21:44:27 ln -sf /usr/bin/clang 2020-04-13 21:44:27 ln -sf /usr/bin/llc 2020-04-13 21:44:27 make run_tests -C timers make: Entering directory '/usr/src/perf_selftests-x86_64-rhel-7.6-18e589f6a0591296a9483aa91187f2ccc4e0b616/tools/testing/selftests/timers' gcc -O3 -Wl,-no-as-needed -Wall -DKTEST -lrt -lpthread posix_timers.c -o posix_timers gcc -O3 -Wl,-no-as-needed -Wall -DKTEST -lrt -lpthread nanosleep.c -o nanosleep gcc -O3 -Wl,-no-as-needed -Wall -DKTEST -lrt -lpthread nsleep-lat.c -o nsleep-lat gcc -O3 -Wl,-no-as-needed -Wall -DKTEST -lrt -lpthread set-timer-lat.c -o set-timer-lat gcc -O3 -Wl,-no-as-needed -Wall -DKTEST -lrt -lpthread mqueue-lat.c -o mqueue-lat gcc -O3 -Wl,-no-as-needed -Wall -DKTEST -lrt -lpthread inconsistency-check.c -o inconsistency-check gcc -O3 -Wl,-no-as-needed -Wall -DKTEST -lrt -lpthread raw_skew.c -o raw_skew raw_skew.c: In function ‘main’: raw_skew.c:152:11: error: too many arguments to function ‘ksft_exit_skip’ return ksft_exit_skip("The clock was adjusted externally. Shutdown NTPd or other time sync daemons\n"); ^~~~~~~~~~~~~~ In file included from raw_skew.c:29:0: ../kselftest.h:64:19: note: declared here static inline int ksft_exit_skip(void) ^~~~~~~~~~~~~~ <builtin>: recipe for target 'raw_skew' failed make: *** [raw_skew] Error 1 make: Leaving directory '/usr/src/perf_selftests-x86_64-rhel-7.6-18e589f6a0591296a9483aa91187f2ccc4e0b616/tools/testing/selftests/timers' To reproduce: # build kernel cd linux cp config-4.9.128-00097-g18e589f6a0591 .config make HOSTCC=gcc-7 CC=gcc-7 ARCH=x86_64 olddefconfig prepare modules_prepare bzImage git clone https://github.com/intel/lkp-tests.git cd lkp-tests bin/lkp qemu -k <bzImage> job-script # job-script is attached in this email Thanks, Rong Chen