We've moved most logic of early boot up from startup_64() written in assembly to __startup_64() written in C.
Fengguang reported breakage due to the change. It was tracked down to CONFIG_FUNCTION_TRACER being enabled. Looks like function-tracing of the new code is harmful. Let's not comple the code with -pg compiler option. Signed-off-by: Kirill A. Shutemov <kirill.shute...@linux.intel.com> Reported-by: Fengguang Wu <fengguang...@intel.com> Cc: Steven Rostedt <rost...@goodmis.org> --- arch/x86/kernel/Makefile | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/x86/kernel/Makefile b/arch/x86/kernel/Makefile index 4b994232cb57..0db512092f37 100644 --- a/arch/x86/kernel/Makefile +++ b/arch/x86/kernel/Makefile @@ -18,6 +18,7 @@ CFLAGS_REMOVE_pvclock.o = -pg CFLAGS_REMOVE_kvmclock.o = -pg CFLAGS_REMOVE_ftrace.o = -pg CFLAGS_REMOVE_early_printk.o = -pg +CFLAGS_REMOVE_head64.o = -pg endif KASAN_SANITIZE_head$(BITS).o := n -- 2.11.0
