diff options
| -rw-r--r-- | erts/emulator/beam/erl_nif.c | 19 | ||||
| -rw-r--r-- | erts/emulator/test/nif_SUITE.erl | 10 |
2 files changed, 17 insertions, 12 deletions
diff --git a/erts/emulator/beam/erl_nif.c b/erts/emulator/beam/erl_nif.c index af25971130..9ffb53d532 100644 --- a/erts/emulator/beam/erl_nif.c +++ b/erts/emulator/beam/erl_nif.c @@ -868,26 +868,27 @@ static Eterm call_whereis(ErlNifEnv *env, Eterm name) Process *c_p; Eterm res; int scheduler; - int unlock; execution_state(env, &c_p, &scheduler); ASSERT((c_p && scheduler) || (!c_p && !scheduler)); - unlock = 0; if (scheduler < 0) { /* dirty scheduler */ if (ERTS_PROC_IS_EXITING(c_p)) return 0; - if (env->proc->static_flags & ERTS_STC_FLG_SHADOW_PROC) { - erts_proc_lock(c_p, ERTS_PROC_LOCK_MAIN); - unlock = 1; - } + if (env->proc->static_flags & ERTS_STC_FLG_SHADOW_PROC) + c_p = NULL; /* as we don't have main lock */ } - res = erts_whereis_name_to_id(c_p, name); - if (unlock) - erts_proc_unlock(c_p, ERTS_PROC_LOCK_MAIN); + + if (c_p) { + /* main lock may be released below and c_p->htop updated by others */ + flush_env(env); + } + res = erts_whereis_name_to_id(c_p, name); + if (c_p) + cache_env(env); return res; } diff --git a/erts/emulator/test/nif_SUITE.erl b/erts/emulator/test/nif_SUITE.erl index 47f9a6e712..ef66f0bbfc 100644 --- a/erts/emulator/test/nif_SUITE.erl +++ b/erts/emulator/test/nif_SUITE.erl @@ -2881,11 +2881,15 @@ nif_whereis_parallel(Config) when is_list(Config) -> true = lists:all(PidReg, Procs), %% tell them all to 'fire' as fast as we can - [P ! {Ref, send_proc} || {_, P, _} <- Procs], + repeat(10, fun(_) -> + [P ! {Ref, send_proc} || {_, P, _} <- Procs] + end, void), %% each gets forwarded through two processes - true = lists:all(RecvNum, NSeq), - true = lists:all(RecvNum, NSeq), + repeat(10, fun(_) -> + true = lists:all(RecvNum, NSeq), + true = lists:all(RecvNum, NSeq) + end, void), %% tell them all to 'quit' by name [N ! {Ref, quit} || {N, _, _} <- Procs], |