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-rw-r--r--erts/emulator/hipe/hipe_mode_switch.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/erts/emulator/hipe/hipe_mode_switch.c b/erts/emulator/hipe/hipe_mode_switch.c
index 8b497c9970..f2befb07e3 100644
--- a/erts/emulator/hipe/hipe_mode_switch.c
+++ b/erts/emulator/hipe/hipe_mode_switch.c
@@ -662,7 +662,8 @@ void hipe_inc_nstack(Process *p)
Eterm *new_nstack = erts_alloc(ERTS_ALC_T_HIPE_STK, new_size*sizeof(Eterm));
unsigned used_size = p->hipe.nstend - p->hipe.nsp;
- sys_memcpy(new_nstack+new_size-used_size, p->hipe.nsp, used_size*sizeof(Eterm));
+ if (used_size)
+ sys_memcpy(new_nstack+new_size-used_size, p->hipe.nsp, used_size*sizeof(Eterm));
if (p->hipe.nstgraylim)
p->hipe.nstgraylim = new_nstack + new_size - (p->hipe.nstend - p->hipe.nstgraylim);
if (p->hipe.nstblacklim)