On some systems kernel code is considered secure, and this code already limits tracing to the kernel text segment which results in no trace data.
Signed-off-by: Arve Hjønnevåg <[email protected]> --- arch/arm/kernel/etm.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/arch/arm/kernel/etm.c b/arch/arm/kernel/etm.c index d4ec368..6e15c48 100644 --- a/arch/arm/kernel/etm.c +++ b/arch/arm/kernel/etm.c @@ -55,7 +55,7 @@ static inline bool trace_isrunning(struct tracectx *t) static int etm_setup_address_range(struct tracectx *t, int n, unsigned long start, unsigned long end, int exclude, int data) { - u32 flags = ETMAAT_ARM | ETMAAT_IGNCONTEXTID | ETMAAT_NSONLY | \ + u32 flags = ETMAAT_ARM | ETMAAT_IGNCONTEXTID | ETMAAT_IGNSECURITY | ETMAAT_NOVALCMP; if (n < 1 || n > t->ncmppairs) -- 1.7.3.1 -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
