erts: Don't crash on maps on crash dumps

- Large Maps could cause a stack overrun during crash dump generation.
- This is a simple workaround until a solution has been implemented.
- The error has no impact on a running system.

1 files changed, 5 insertions, 0 deletions

diff --git a/erts/emulator/beam/erl_process_dump.c b/erts/emulator/beam/erl_process_dump.c
index eeaa9a569c..a70dfb8e73 100644
--- a/erts/emulator/beam/erl_process_dump.c
+++ b/erts/emulator/beam/erl_process_dump.c
@@ -560,6 +560,11 @@ dump_externally(int to, void *to_arg, Eterm term)
 	}
     }
 
+    /* Do not handle maps */
+    if (is_map(term)) {
+        term = am_undefined;
+    }
+
     s = p = sbuf;
     erts_encode_ext(term, &p);
     erts_print(to, to_arg, "E%X:", p-s);