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-rw-r--r--erts/emulator/sys/common/erl_check_io.c4
-rw-r--r--erts/emulator/sys/common/erl_poll.c12
2 files changed, 10 insertions, 6 deletions
diff --git a/erts/emulator/sys/common/erl_check_io.c b/erts/emulator/sys/common/erl_check_io.c
index f93d4c1557..6d531fdb76 100644
--- a/erts/emulator/sys/common/erl_check_io.c
+++ b/erts/emulator/sys/common/erl_check_io.c
@@ -1,7 +1,7 @@
/*
* %CopyrightBegin%
*
- * Copyright Ericsson AB 2006-2017. All Rights Reserved.
+ * Copyright Ericsson AB 2006-2018. All Rights Reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
@@ -885,7 +885,7 @@ enif_select(ErlNifEnv* env,
ErtsDrvSelectDataState *free_select = NULL;
ErtsNifSelectDataState *free_nif = NULL;
- ASSERT(!(resource->monitors && resource->monitors->is_dying));
+ ASSERT(!resource->monitors);
#ifdef ERTS_SYS_CONTINOUS_FD_NUMBERS
if (!grow_drv_ev_state(fd)) {
diff --git a/erts/emulator/sys/common/erl_poll.c b/erts/emulator/sys/common/erl_poll.c
index 7aa53e8f36..ced8a4a2a7 100644
--- a/erts/emulator/sys/common/erl_poll.c
+++ b/erts/emulator/sys/common/erl_poll.c
@@ -782,10 +782,14 @@ update_pollset(ErtsPollSet *ps, int fd, ErtsPollOp op, ErtsPollEvents events)
struct kevent evts[2];
struct timespec ts = {0, 0};
-#ifdef EV_DISPATCH
- /* If we have EV_DISPATCH we use it. The kevent descriptions for both
- read and write are added on OP_ADD and removed on OP_DEL. And then
- after than only EV_ENABLE|EV_DISPATCH are used.
+#if defined(EV_DISPATCH) && !defined(__OpenBSD__)
+ /* If we have EV_DISPATCH we use it, unless we are on OpenBSD as the
+ behavior of EV_EOF seems to be edge triggered there and we need it
+ to be level triggered.
+
+ The kevent descriptions for both read and write are added on OP_ADD
+ and removed on OP_DEL. And then after than only EV_ENABLE|EV_DISPATCH
+ are used.
It could be possible to not modify the pollset when disabling and/or
deleting events, but that may cause the poll threads to be awoken