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| author | Steve Vinoski <[email protected]> | 2014-11-04 11:46:19 -0500 |
|---|---|---|
| committer | Steve Vinoski <[email protected]> | 2014-11-04 11:46:19 -0500 |
| commit | 66a184c576d9262045194e95c752a50c74877802 (patch) | |
| tree | 2eaf0ccb9b31054d68c1a98584445b93dcf6dba3 | |
| parent | 487c3858450d27e6838eed19e55c21641d101908 (diff) | |
| download | otp-66a184c576d9262045194e95c752a50c74877802.tar.gz otp-66a184c576d9262045194e95c752a50c74877802.tar.bz2 otp-66a184c576d9262045194e95c752a50c74877802.zip | |
Fix gc-related problem with dirty NIFs
Ensure that the return value from a dirty NIF call is made part of the GC
rootset. Add a new regression test to nif_SUITE.
Thanks to Daniel Goertzen for reporting the error and providing a test
case, and to Sverker Eriksson for making test case reproducible and finding
the fix.
| -rw-r--r-- | erts/emulator/beam/erl_nif.c | 1 | ||||
| -rw-r--r-- | erts/emulator/test/nif_SUITE.erl | 3 | ||||
| -rw-r--r-- | erts/emulator/test/nif_SUITE_data/nif_SUITE.c | 13 |
3 files changed, 17 insertions, 0 deletions
diff --git a/erts/emulator/beam/erl_nif.c b/erts/emulator/beam/erl_nif.c index ede5f335dc..adc3520ebb 100644 --- a/erts/emulator/beam/erl_nif.c +++ b/erts/emulator/beam/erl_nif.c @@ -1646,6 +1646,7 @@ init_nif_sched_data(ErlNifEnv* env, NativeFunPtr direct_fp, NativeFunPtr indirec ep->m = env->mod_nif; ep->fp = indirect_fp; proc->freason = TRAP; + proc->arity = argc; return THE_NON_VALUE; } diff --git a/erts/emulator/test/nif_SUITE.erl b/erts/emulator/test/nif_SUITE.erl index 14e6585220..4560077a51 100644 --- a/erts/emulator/test/nif_SUITE.erl +++ b/erts/emulator/test/nif_SUITE.erl @@ -1564,6 +1564,8 @@ dirty_nif(Config) when is_list(Config) -> Val2 = "Erlang", Val3 = list_to_binary([Val2, 0]), {Val1, Val2, Val3} = call_dirty_nif(Val1, Val2, Val3), + LargeArray = lists:duplicate(1000, ok), + LargeArray = call_dirty_nif_zero_args(), ok catch error:badarg -> @@ -1740,6 +1742,7 @@ call_nif_schedule(_,_) -> ?nif_stub. call_dirty_nif(_,_,_) -> ?nif_stub. send_from_dirty_nif(_) -> ?nif_stub. call_dirty_nif_exception() -> ?nif_stub. +call_dirty_nif_zero_args() -> ?nif_stub. %% maps is_map_nif(_) -> ?nif_stub. diff --git a/erts/emulator/test/nif_SUITE_data/nif_SUITE.c b/erts/emulator/test/nif_SUITE_data/nif_SUITE.c index 291c903947..85544db2ab 100644 --- a/erts/emulator/test/nif_SUITE_data/nif_SUITE.c +++ b/erts/emulator/test/nif_SUITE_data/nif_SUITE.c @@ -1623,6 +1623,18 @@ static ERL_NIF_TERM call_dirty_nif_exception(ErlNifEnv* env, int argc, const ERL call_dirty_nif_exception, argc-1, argv); } } + +static ERL_NIF_TERM call_dirty_nif_zero_args(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]) +{ + int i; + ERL_NIF_TERM result[1000]; + ERL_NIF_TERM ok = enif_make_atom(env, "ok"); + assert(argc == 0); + for (i = 0; i < sizeof(result)/sizeof(*result); i++) { + result[i] = ok; + } + return enif_make_list_from_array(env, result, i); +} #endif static ERL_NIF_TERM is_map_nif(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]) @@ -1807,6 +1819,7 @@ static ErlNifFunc nif_funcs[] = {"call_dirty_nif", 3, call_dirty_nif}, {"send_from_dirty_nif", 1, send_from_dirty_nif, ERL_NIF_DIRTY_JOB_CPU_BOUND}, {"call_dirty_nif_exception", 0, call_dirty_nif_exception, ERL_NIF_DIRTY_JOB_IO_BOUND}, + {"call_dirty_nif_zero_args", 0, call_dirty_nif_zero_args, ERL_NIF_DIRTY_JOB_CPU_BOUND}, #endif {"is_map_nif", 1, is_map_nif}, {"get_map_size_nif", 1, get_map_size_nif}, |