From 64101035e025fc44dff5ba3d6ed4668c1e3a698f Mon Sep 17 00:00:00 2001
From: Sverker Eriksson <sverker@erlang.org>
Date: Fri, 3 Nov 2017 19:52:50 +0100
Subject: erts: Fix lock checking in do_call_trace

which was lost in merge 3ec66701f91eba6a7a12a813b2283c2e733f62c1
---
 erts/emulator/beam/beam_bp.c | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'erts/emulator/beam/beam_bp.c')

diff --git a/erts/emulator/beam/beam_bp.c b/erts/emulator/beam/beam_bp.c
index fe1e15701b..0832b3f374 100644
--- a/erts/emulator/beam/beam_bp.c
+++ b/erts/emulator/beam/beam_bp.c
@@ -998,7 +998,9 @@ do_call_trace(Process* c_p, ErtsCodeInfo* info, Eterm* reg,
 
     fixup_cp_before_trace(c_p, &return_to_trace);
 
+    ERTS_UNREQ_PROC_MAIN_LOCK(c_p);
     flags = erts_call_trace(c_p, info, ms, reg, local, &tracer);
+    ERTS_REQ_PROC_MAIN_LOCK(c_p);
 
     /* restore cp after potential fixup */
     c_p->cp = cp_save;
-- 
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