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-rw-r--r--erts/emulator/beam/beam_bp.c2
1 files changed, 2 insertions, 0 deletions
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;