On 31/01/2021 01:42, Steven Rostedt wrote:
On Sat, 30 Jan 2021 09:36:26 -0500
Steven Rostedt <rost...@goodmis.org> wrote:
Do you still have the same crash with v3 (that's the one I'm going to
go with for now.)
https://lore.kernel.org/r/20201118093405.7a6d2...@gandalf.local.home
Just curious, does the following patch fix it for v5?
Yes it does!
-- Steve
diff --git a/kernel/tracepoint.c b/kernel/tracepoint.c
index 7261fa0f5e3c..cf3a6d104fdb 100644
--- a/kernel/tracepoint.c
+++ b/kernel/tracepoint.c
@@ -306,6 +306,7 @@ static int tracepoint_remove_func(struct tracepoint *tp,
tp->unregfunc();
static_key_disable(&tp->key);
+ tracepoint_synchronize_unregister();
rcu_assign_pointer(tp->funcs, tp_funcs);
} else {
rcu_assign_pointer(tp->funcs, tp_funcs);
--
Alexey
