Need a marker_synchronize_unregister() before the end of exit() to make sure every probe callers have exited the non preemptible section and thus are not executing the probe code anymore. Signed-off-by: Mathieu Desnoyers CC: Ingo Molnar CC: Rusty Russell CC: akpm@linux-foundation.org CC: "Frank Ch. Eigler" --- samples/markers/probe-example.c | 1 + 1 file changed, 1 insertion(+) Index: linux-2.6-lttng/samples/markers/probe-example.c =================================================================== --- linux-2.6-lttng.orig/samples/markers/probe-example.c 2008-07-31 09:11:13.000000000 -0400 +++ linux-2.6-lttng/samples/markers/probe-example.c 2008-07-31 09:18:54.000000000 -0400 @@ -81,6 +81,7 @@ static void __exit probe_fini(void) probe_array[i].probe_func, &probe_array[i]); printk(KERN_INFO "Number of event b : %u\n", atomic_read(&eventb_count)); + marker_synchronize_unregister(); } module_init(probe_init); -- Mathieu Desnoyers Computer Engineering Ph.D. Student, Ecole Polytechnique de Montreal OpenPGP key fingerprint: 8CD5 52C3 8E3C 4140 715F BA06 3F25 A8FE 3BAE 9A68 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/