[17/66] tracing/x86: Dont use mcount in kvmclock.c
diff mbox series

Message ID 20101022183557.756570332@clark.site
State New, archived
Headers show
  • review
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Commit Message

Greg KH Oct. 22, 2010, 6:34 p.m. UTC
2.6.32-stable review patch.  If anyone has any objections, please let us know.


From: Steven Rostedt <srostedt@redhat.com>

commit 258af47479980d8238a04568b94a4e55aa1cb537 upstream.

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: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Cc: Avi Kivity <avi@redhat.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

 arch/x86/kernel/Makefile |    1 +
 1 file changed, 1 insertion(+)

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diff mbox series

--- a/arch/x86/kernel/Makefile
+++ b/arch/x86/kernel/Makefile
@@ -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