diff options
| author | Rickard Green <[email protected]> | 2011-12-23 17:31:35 +0100 |
|---|---|---|
| committer | Rickard Green <[email protected]> | 2011-12-27 15:13:48 +0100 |
| commit | df828dcd8e4d42eee9d88f4747cff1730151e351 (patch) | |
| tree | 22eadd30e279294b66b9823c660baa2bfbaf1c9e /erts/emulator/sys/common/erl_poll.c | |
| parent | 6088c2c426d71a21874673ca6ddf93aa9e2ed4ab (diff) | |
| download | otp-df828dcd8e4d42eee9d88f4747cff1730151e351.tar.gz otp-df828dcd8e4d42eee9d88f4747cff1730151e351.tar.bz2 otp-df828dcd8e4d42eee9d88f4747cff1730151e351.zip | |
Include wakeup pipe in /dev/poll poll-set also on non-SMP
I/O events could potentially be delayed for ever when enabling
kernel-poll on a non-SMP runtime system executing on Solaris. When
also combined with async-threads the runtime system hung before
completing the boot phase. This bug was introduced in
erts-5.9/OTP-R15B.
Diffstat (limited to 'erts/emulator/sys/common/erl_poll.c')
| -rw-r--r-- | erts/emulator/sys/common/erl_poll.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/erts/emulator/sys/common/erl_poll.c b/erts/emulator/sys/common/erl_poll.c index b6cb271f17..3817b1e4d5 100644 --- a/erts/emulator/sys/common/erl_poll.c +++ b/erts/emulator/sys/common/erl_poll.c @@ -1949,7 +1949,7 @@ check_fd_events(ErtsPollSet ps, SysTimeval *tv, int max_res) */ struct dvpoll poll_res; int nfds = (int) erts_smp_atomic_read_nob(&ps->no_of_user_fds); -#ifdef ERTS_SMP +#if ERTS_POLL_USE_WAKEUP_PIPE nfds++; /* Wakeup pipe */ #endif if (timeout > INT_MAX) @@ -2487,7 +2487,7 @@ ERTS_POLL_EXPORT(erts_poll_info)(ErtsPollSet ps, ErtsPollInfo *pip) pip->memory_size = size; pip->poll_set_size = (int) erts_smp_atomic_read_nob(&ps->no_of_user_fds); -#ifdef ERTS_SMP +#if ERTS_POLL_USE_WAKEUP_PIPE pip->poll_set_size++; /* Wakeup pipe */ #endif |