Commit 258af474 authored Sep 22, 2010 by Steven Rostedt Committed by Steven Rostedt Sep 22, 2010

tracing/x86: Don't use mcount in kvmclock.c

The guest can use the paravirt clock in kvmclock.c which is used
by sched_clock(), which in turn is used by the tracing mechanism
for timestamps, which leads to infinite recursion.

Disable mcount/tracing for kvmclock.o.

Cc: stable@kernel.org
Cc: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Cc: Avi Kivity <avi@redhat.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>

parent 9ecd4e16

arch/x86/kernel/Makefile

+1 −0

Original line number	Diff line number	Diff line
		@@ -12,6 +12,7 @@ CFLAGS_REMOVE_tsc.o = -pg
		CFLAGS_REMOVE_rtc.o = -pg
		CFLAGS_REMOVE_paravirt-spinlocks.o = -pg
		CFLAGS_REMOVE_pvclock.o = -pg
		CFLAGS_REMOVE_kvmclock.o = -pg
		CFLAGS_REMOVE_ftrace.o = -pg
		CFLAGS_REMOVE_early_printk.o = -pg
		endif