Messages in this thread Patch in this message | | | Date | Wed, 22 Sep 2010 23:04:01 -0400 | From | Steven Rostedt <> | Subject | [PATCH 2/2] tracing/x86: Dont use mcount in kvmclock.c |
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From: Steven Rostedt <srostedt@redhat.com>
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> --- arch/x86/kernel/Makefile | 1 + 1 files changed, 1 insertions(+), 0 deletions(-)
diff --git a/arch/x86/kernel/Makefile b/arch/x86/kernel/Makefile index 882bbff..fedf32a 100644 --- 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 endif -- 1.7.1
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