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Message-Id: <1293952756-15010-175-git-send-email-paul.gortmaker@windriver.com> Date: Sun, 2 Jan 2011 02:17:50 -0500 From: Paul Gortmaker <paul.gortmaker@...driver.com> To: stable@...nel.org, linux-kernel@...r.kernel.org Cc: stable-review@...nel.org, Jeremy Fitzhardinge <jeremy@...p.org>, Jeremy Fitzhardinge <jeremy.fitzhardinge@...rix.com>, Steven Rostedt <rostedt@...dmis.org>, Paul Gortmaker <paul.gortmaker@...driver.com> Subject: [34-longterm 174/260] tracing/x86: Don't use mcount in pvclock.c From: Jeremy Fitzhardinge <jeremy@...p.org> commit 9ecd4e1689208afe9b059a5ce1333acb2f42c4d2 upstream. When using a paravirt clock, pvclock.c can be used by sched_clock(), which in turn is used by the tracing mechanism for timestamps, which leads to infinite recursion. Disable mcount/tracing for pvclock.o. Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@...rix.com> LKML-Reference: <4C9A9A3F.4040201@...p.org> Signed-off-by: Steven Rostedt <rostedt@...dmis.org> Signed-off-by: Paul Gortmaker <paul.gortmaker@...driver.com> --- 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 4c58352..ea3f79b 100644 --- a/arch/x86/kernel/Makefile +++ b/arch/x86/kernel/Makefile @@ -11,6 +11,7 @@ ifdef CONFIG_FUNCTION_TRACER CFLAGS_REMOVE_tsc.o = -pg CFLAGS_REMOVE_rtc.o = -pg CFLAGS_REMOVE_paravirt-spinlocks.o = -pg +CFLAGS_REMOVE_pvclock.o = -pg CFLAGS_REMOVE_ftrace.o = -pg CFLAGS_REMOVE_early_printk.o = -pg endif -- 1.7.3.3 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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