diff -ru a/src/shared/linux_osl.c b/src/shared/linux_osl.c --- a/src/shared/linux_osl.c 2015-09-18 15:47:30.000000000 -0700 +++ b/src/shared/linux_osl.c 2015-11-14 15:38:10.484563014 -0800 @@ -932,7 +932,11 @@ uint cycles; #if defined(__i386__) +#if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 3, 0) + cycles = rdtsc(); +#else rdtscl(cycles); +#endif #else cycles = 0; #endif