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-rw-r--r--erts/emulator/beam/erl_nif.c12
1 files changed, 11 insertions, 1 deletions
diff --git a/erts/emulator/beam/erl_nif.c b/erts/emulator/beam/erl_nif.c
index 26498eda7b..ee6e6085b6 100644
--- a/erts/emulator/beam/erl_nif.c
+++ b/erts/emulator/beam/erl_nif.c
@@ -453,8 +453,18 @@ static void full_flush_env(ErlNifEnv* env)
static void full_cache_env(ErlNifEnv* env)
{
- if (env->proc->static_flags & ERTS_STC_FLG_SHADOW_PROC)
+ if (env->proc->static_flags & ERTS_STC_FLG_SHADOW_PROC) {
erts_cache_dirty_shadow_proc(env->proc);
+ /*
+ * If shadow proc had heap fragments when flushed
+ * those have now been moved to the real proc.
+ * Ensure heap pointers do not point into a heap
+ * fragment on real proc...
+ */
+ ASSERT(!env->proc->mbuf);
+ env->hp_end = HEAP_LIMIT(env->proc);
+ env->hp = HEAP_TOP(env->proc);
+ }
cache_env(env);
}