diff options
| -rw-r--r-- | erts/emulator/beam/bif.c | 4 | ||||
| -rw-r--r-- | erts/emulator/beam/erl_gc.c | 19 | ||||
| -rw-r--r-- | erts/emulator/test/code_SUITE.erl | 37 |
3 files changed, 58 insertions, 2 deletions
diff --git a/erts/emulator/beam/bif.c b/erts/emulator/beam/bif.c index f18af8bcd7..015c051cc1 100644 --- a/erts/emulator/beam/bif.c +++ b/erts/emulator/beam/bif.c @@ -3622,6 +3622,10 @@ erts_internal_garbage_collect_1(BIF_ALIST_1) default: BIF_ERROR(BIF_P, BADARG); } erts_garbage_collect(BIF_P, 0, NULL, 0); + if (ERTS_PROC_IS_EXITING(BIF_P)) { + /* The max heap size limit was reached. */ + return THE_NON_VALUE; + } return am_true; } diff --git a/erts/emulator/beam/erl_gc.c b/erts/emulator/beam/erl_gc.c index a65dbbf42b..47dd115c82 100644 --- a/erts/emulator/beam/erl_gc.c +++ b/erts/emulator/beam/erl_gc.c @@ -1133,9 +1133,28 @@ erts_garbage_collect_literals(Process* p, Eterm* literals, reds = (Sint64) garbage_collect(p, ERTS_INVALID_HFRAG_PTR, 0, p->arg_reg, p->arity, fcalls, ygen_usage); + if (ERTS_PROC_IS_EXITING(p)) { + return 0; + } ASSERT(!(p->flags & (F_DIRTY_MAJOR_GC|F_DIRTY_MINOR_GC))); + if (MAX_HEAP_SIZE_GET(p)) { + Uint new_heap_size; + Uint old_heap_size; + Uint total_heap_size; + + new_heap_size = HEAP_END(p) - HEAP_START(p); + old_heap_size = erts_next_heap_size(lit_size, 0); + total_heap_size = new_heap_size + old_heap_size; + if (MAX_HEAP_SIZE_GET(p) < total_heap_size && + reached_max_heap_size(p, total_heap_size, + new_heap_size, old_heap_size)) { + erts_set_self_exiting(p, am_killed); + return 0; + } + } + /* * Set GC state. */ diff --git a/erts/emulator/test/code_SUITE.erl b/erts/emulator/test/code_SUITE.erl index 9c6dc3ff83..0444ba4f89 100644 --- a/erts/emulator/test/code_SUITE.erl +++ b/erts/emulator/test/code_SUITE.erl @@ -28,7 +28,7 @@ fake_literals/1, false_dependency/1,coverage/1,fun_confusion/1, t_copy_literals/1, t_copy_literals_frags/1, - erl_544/1]). + erl_544/1, max_heap_size/1]). -define(line_trace, 1). -include_lib("common_test/include/ct.hrl"). @@ -43,7 +43,7 @@ all() -> constant_pools, constant_refc_binaries, fake_literals, false_dependency, coverage, fun_confusion, t_copy_literals, t_copy_literals_frags, - erl_544]. + erl_544, max_heap_size]. init_per_suite(Config) -> erts_debug:set_internal_state(available_internal_state, true), @@ -968,6 +968,39 @@ erl_544(Config) when is_list(Config) -> {skipped, "Only run when native file name encoding is utf8"} end. +%% Test that the copying of literals to a process during purging of +%% literals will cause the process to be killed if the max heap size +%% is exceeded. +max_heap_size(_Config) -> + Mod = ?FUNCTION_NAME, + Value = [I || I <- lists:seq(1, 5000)], + Code = gen_lit(Mod, [{term,Value}]), + {module,Mod} = erlang:load_module(Mod, Code), + SpawnOpts = [monitor, + {max_heap_size, + #{size=>1024, + kill=>true, + error_logger=>true}}], + {Pid,Ref} = spawn_opt(fun() -> + max_heap_size_proc(Mod) + end, SpawnOpts), + receive + {'DOWN',Ref,process,Pid,Reason} -> + killed = Reason; + Other -> + ct:fail({unexpected_message,Other}) + after 10000 -> + ct:fail({process_did_not_die, Pid, erlang:process_info(Pid)}) + end. + +max_heap_size_proc(Mod) -> + Value = Mod:term(), + code:delete(Mod), + code:purge(Mod), + receive + _ -> Value + end. + %% Utilities. make_sub_binary(Bin) when is_binary(Bin) -> |