diff options
Diffstat (limited to 'erts')
35 files changed, 652 insertions, 219 deletions
diff --git a/erts/doc/src/erl_nif.xml b/erts/doc/src/erl_nif.xml index 906c1be17b..185ecd9ed9 100644 --- a/erts/doc/src/erl_nif.xml +++ b/erts/doc/src/erl_nif.xml @@ -123,7 +123,7 @@ ok "Hello world!"</code> <p>A better solution for a real module is to take advantage of the new - directive <c>on load</c> (see section + directive <c>on_load</c> (see section <seealso marker="doc/reference_manual:code_loading#on_load">Running a Function When a Module is Loaded</seealso> in the Erlang Reference Manual) to load the NIF library automatically when the module is @@ -135,27 +135,14 @@ ok away by the compiler, causing loading of the NIF library to fail.</p> </note> - <p>A loaded NIF library is tied to the Erlang module code version - that loaded it. If the module is upgraded with a new version, the - new Erlang code need to load its own NIF library (or maybe choose not - to). The new code version can, however, choose to load the - same NIF library as the old code if it wants to. Sharing the - dynamic library means that static data defined by the library - is shared as well. To avoid unintentionally shared static - data, each Erlang module code can keep its own private data. This - private data can be set when the NIF library is loaded and - then retrieved by calling <seealso marker="#enif_priv_data"> - <c>enif_priv_data</c></seealso>.</p> - - <p>A NIF library cannot be loaded explicitly. A library is - automatically unloaded when the module code that it belongs to is purged - by the code server.</p> + <p>Once loaded, a NIF library is persistent. It will not be unloaded + until the module code version that it belongs to is purged.</p> </description> <section> <title>Functionality</title> - <p>All functions that a NIF library needs to do with Erlang are - performed through the NIF API functions. Functions exist + <p>All interaction between NIF code and the Erlang runtime system is + performed by calling NIF API functions. Functions exist for the following functionality:</p> <taglist> @@ -286,6 +273,19 @@ return term;</code> library is postponed as long as there exist resource objects with a destructor function in the library.</p> </item> + <tag>Module upgrade and static data</tag> + <item> + <p>A loaded NIF library is tied to the Erlang module instance + that loaded it. If the module is upgraded, the new module instance + needs to load its own NIF library (or maybe choose not to). The new + module instance can, however, choose to load the exact same NIF library + as the old code if it wants to. Sharing the dynamic library means that + static data defined by the library is shared as well. To avoid + unintentionally shared static data between module instances, each Erlang + module version can keep its own private data. This private data can be + set when the NIF library is loaded and later retrieved by calling + <seealso marker="#enif_priv_data"><c>enif_priv_data</c></seealso>.</p> + </item> <tag>Threads and concurrency</tag> <item> <p>A NIF is thread-safe without any explicit synchronization as @@ -525,7 +525,7 @@ return term;</code> <p><c>load</c> is called when the NIF library is loaded and no previously loaded library exists for this module.</p> <p><c>*priv_data</c> can be set to point to some private data - that the library needs to keep a state between NIF + if the library needs to keep a state between NIF calls. <c>enif_priv_data</c> returns this pointer. <c>*priv_data</c> is initialized to <c>NULL</c> when <c>load</c> is called.</p> diff --git a/erts/doc/src/erlang.xml b/erts/doc/src/erlang.xml index 3dad09365e..b3fab3874b 100644 --- a/erts/doc/src/erlang.xml +++ b/erts/doc/src/erlang.xml @@ -4933,7 +4933,9 @@ RealSystem = system + MissedSystem</code> <p>Returns the current call stack back-trace (<em>stacktrace</em>) of the process. The stack has the same format as returned by <seealso marker="#get_stacktrace/0"> - <c>erlang:get_stacktrace/0</c></seealso>.</p> + <c>erlang:get_stacktrace/0</c></seealso>. The depth of the + stacktrace is truncated according to the <c>backtrace_depth</c> + system flag setting.</p> </item> <tag><c>{dictionary, <anno>Dictionary</anno>}</c></tag> <item> @@ -6645,7 +6647,9 @@ ok <fsummary>Set system flag <c>backtrace_depth</c>.</fsummary> <desc> <p>Sets the maximum depth of call stack back-traces in the - exit reason element of <c>'EXIT'</c> tuples.</p> + exit reason element of <c>'EXIT'</c> tuples. The flag + also limits the stacktrace depth returned by <c>process_info</c> + item <c>current_stacktrace.</c></p> <p>Returns the old value of the flag.</p> </desc> </func> @@ -7224,8 +7228,8 @@ ok </func> <func> - <name name="system_info" arity="1" clause_i="11"/> <name name="system_info" arity="1" clause_i="12"/> + <name name="system_info" arity="1" clause_i="13"/> <fsummary>Information about the CPU topology of the system.</fsummary> <type name="cpu_topology"/> <type name="level_entry"/> @@ -7325,12 +7329,12 @@ ok </func> <func> - <name name="system_info" arity="1" clause_i="28"/> <name name="system_info" arity="1" clause_i="29"/> - <name name="system_info" arity="1" clause_i="37"/> + <name name="system_info" arity="1" clause_i="30"/> <name name="system_info" arity="1" clause_i="38"/> <name name="system_info" arity="1" clause_i="39"/> <name name="system_info" arity="1" clause_i="40"/> + <name name="system_info" arity="1" clause_i="41"/> <fsummary>Information about the default process heap settings.</fsummary> <type name="message_queue_data"/> <type name="max_heap_size"/> @@ -7408,7 +7412,7 @@ ok <name name="system_info" arity="1" clause_i="8"/> <name name="system_info" arity="1" clause_i="9"/> <name name="system_info" arity="1" clause_i="10"/> - <name name="system_info" arity="1" clause_i="13"/> + <name name="system_info" arity="1" clause_i="11"/> <name name="system_info" arity="1" clause_i="14"/> <name name="system_info" arity="1" clause_i="15"/> <name name="system_info" arity="1" clause_i="16"/> @@ -7423,14 +7427,14 @@ ok <name name="system_info" arity="1" clause_i="25"/> <name name="system_info" arity="1" clause_i="26"/> <name name="system_info" arity="1" clause_i="27"/> - <name name="system_info" arity="1" clause_i="30"/> + <name name="system_info" arity="1" clause_i="28"/> <name name="system_info" arity="1" clause_i="31"/> <name name="system_info" arity="1" clause_i="32"/> <name name="system_info" arity="1" clause_i="33"/> <name name="system_info" arity="1" clause_i="34"/> <name name="system_info" arity="1" clause_i="35"/> <name name="system_info" arity="1" clause_i="36"/> - <name name="system_info" arity="1" clause_i="41"/> + <name name="system_info" arity="1" clause_i="37"/> <name name="system_info" arity="1" clause_i="42"/> <name name="system_info" arity="1" clause_i="43"/> <name name="system_info" arity="1" clause_i="44"/> @@ -7460,11 +7464,18 @@ ok <name name="system_info" arity="1" clause_i="68"/> <name name="system_info" arity="1" clause_i="69"/> <name name="system_info" arity="1" clause_i="70"/> + <name name="system_info" arity="1" clause_i="71"/> <fsummary>Information about the system.</fsummary> <desc> <p>Returns various information about the current system (emulator) as specified by <c><anno>Item</anno></c>:</p> <taglist> + <tag><c>atom_count</c></tag> + <item> + <marker id="system_info_atom_count"></marker> + <p>Returns the number of atoms currently existing at the + local node. The value is given as an integer.</p> + </item> <tag><c>atom_limit</c></tag> <item> <marker id="system_info_atom_limit"></marker> diff --git a/erts/doc/src/notes.xml b/erts/doc/src/notes.xml index da6190b685..11777f0014 100644 --- a/erts/doc/src/notes.xml +++ b/erts/doc/src/notes.xml @@ -145,13 +145,6 @@ <p> Own Id: OTP-14051</p> </item> - <item> - <p> - Fixed a number of bugs that caused faulty stack-traces to - be created on exception when a process was traced.</p> - <p> - Own Id: OTP-14055</p> - </item> </list> </section> diff --git a/erts/emulator/beam/beam_emu.c b/erts/emulator/beam/beam_emu.c index 613bd5c14e..f64d2df8a8 100644 --- a/erts/emulator/beam/beam_emu.c +++ b/erts/emulator/beam/beam_emu.c @@ -1047,9 +1047,11 @@ static BeamInstr* handle_error(Process* c_p, BeamInstr* pc, Eterm* reg, BifFunction bf) NOINLINE; static BeamInstr* call_error_handler(Process* p, ErtsCodeMFA* mfa, Eterm* reg, Eterm func) NOINLINE; -static BeamInstr* fixed_apply(Process* p, Eterm* reg, Uint arity) NOINLINE; +static BeamInstr* fixed_apply(Process* p, Eterm* reg, Uint arity, + BeamInstr *I, Uint offs) NOINLINE; static BeamInstr* apply(Process* p, Eterm module, Eterm function, - Eterm args, Eterm* reg) NOINLINE; + Eterm args, Eterm* reg, + BeamInstr *I, Uint offs) NOINLINE; static BeamInstr* call_fun(Process* p, int arity, Eterm* reg, Eterm args) NOINLINE; static BeamInstr* apply_fun(Process* p, Eterm fun, @@ -3186,7 +3188,7 @@ do { \ OpCase(i_apply): { BeamInstr *next; HEAVY_SWAPOUT; - next = apply(c_p, r(0), x(1), x(2), reg); + next = apply(c_p, r(0), x(1), x(2), reg, NULL, 0); HEAVY_SWAPIN; if (next != NULL) { SET_CP(c_p, I+1); @@ -3200,7 +3202,7 @@ do { \ OpCase(i_apply_last_P): { BeamInstr *next; HEAVY_SWAPOUT; - next = apply(c_p, r(0), x(1), x(2), reg); + next = apply(c_p, r(0), x(1), x(2), reg, I, Arg(0)); HEAVY_SWAPIN; if (next != NULL) { SET_CP(c_p, (BeamInstr *) E[0]); @@ -3215,7 +3217,7 @@ do { \ OpCase(i_apply_only): { BeamInstr *next; HEAVY_SWAPOUT; - next = apply(c_p, r(0), x(1), x(2), reg); + next = apply(c_p, r(0), x(1), x(2), reg, I, 0); HEAVY_SWAPIN; if (next != NULL) { SET_I(next); @@ -3229,7 +3231,7 @@ do { \ BeamInstr *next; HEAVY_SWAPOUT; - next = fixed_apply(c_p, reg, Arg(0)); + next = fixed_apply(c_p, reg, Arg(0), NULL, 0); HEAVY_SWAPIN; if (next != NULL) { SET_CP(c_p, I+2); @@ -3244,7 +3246,7 @@ do { \ BeamInstr *next; HEAVY_SWAPOUT; - next = fixed_apply(c_p, reg, Arg(0)); + next = fixed_apply(c_p, reg, Arg(0), I, Arg(1)); HEAVY_SWAPIN; if (next != NULL) { SET_CP(c_p, (BeamInstr *) E[0]); @@ -5841,12 +5843,13 @@ save_stacktrace(Process* c_p, BeamInstr* pc, Eterm* reg, BifFunction bf, s->depth = 0; /* - * If the failure was in a BIF other than 'error', 'exit' or - * 'throw', find the bif-table index and save the argument - * registers by consing up an arglist. + * If the failure was in a BIF other than 'error/1', 'error/2', + * 'exit/1' or 'throw/1', find the bif-table index and save the + * argument registers by consing up an arglist. */ - if (bf != NULL && bf != error_1 && bf != error_2 && - bf != exit_1 && bf != throw_1) { + if (bf != NULL && bf != error_1 && bf != error_2 && bf != exit_1 + && bf != throw_1 && bf != wrap_error_1 && bf != wrap_error_2 + && bf != wrap_exit_1 && bf != wrap_throw_1) { int i; int a = 0; for (i = 0; i < BIF_SIZE; i++) { @@ -5942,12 +5945,30 @@ erts_save_stacktrace(Process* p, struct StackTrace* s, int depth) p->cp) { /* Cannot follow cp here - code may be unloaded */ BeamInstr *cpp = p->cp; + int trace_cp; if (cpp == beam_exception_trace || cpp == beam_return_trace) { /* Skip return_trace parameters */ ptr += 2; + trace_cp = 1; } else if (cpp == beam_return_to_trace) { /* Skip return_to_trace parameters */ ptr += 1; + trace_cp = 1; + } + else { + trace_cp = 0; + } + if (trace_cp && s->pc == cpp) { + /* + * If process 'cp' points to a return/exception trace + * instruction and 'cp' has been saved as 'pc' in + * stacktrace, we need to update 'pc' in stacktrace + * with the actual 'cp' located on the top of the + * stack; otherwise, we will lose the top stackframe + * when building the stack trace. + */ + ASSERT(is_CP(p->stop[0])); + s->pc = cp_val(p->stop[0]); } } while (ptr < STACK_START(p) && depth > 0) { @@ -6067,12 +6088,15 @@ build_stacktrace(Process* c_p, Eterm exc) { erts_set_current_function(&fi, s->current); } + depth = s->depth; /* - * If fi.current is still NULL, default to the initial function + * If fi.current is still NULL, and we have no + * stack at all, default to the initial function * (e.g. spawn_link(erlang, abs, [1])). */ if (fi.mfa == NULL) { - erts_set_current_function(&fi, &c_p->u.initial); + if (depth <= 0) + erts_set_current_function(&fi, &c_p->u.initial); args = am_true; /* Just in case */ } else { args = get_args_from_exc(exc); @@ -6082,10 +6106,9 @@ build_stacktrace(Process* c_p, Eterm exc) { * Look up all saved continuation pointers and calculate * needed heap space. */ - depth = s->depth; stk = stkp = (FunctionInfo *) erts_alloc(ERTS_ALC_T_TMP, depth*sizeof(FunctionInfo)); - heap_size = fi.needed + 2; + heap_size = fi.mfa ? fi.needed + 2 : 0; for (i = 0; i < depth; i++) { erts_lookup_function_info(stkp, s->trace[i], 1); if (stkp->mfa) { @@ -6104,8 +6127,10 @@ build_stacktrace(Process* c_p, Eterm exc) { res = CONS(hp, mfa, res); hp += 2; } - hp = erts_build_mfa_item(&fi, hp, args, &mfa); - res = CONS(hp, mfa, res); + if (fi.mfa) { + hp = erts_build_mfa_item(&fi, hp, args, &mfa); + res = CONS(hp, mfa, res); + } erts_free(ERTS_ALC_T_TMP, (void *) stk); return res; @@ -6203,8 +6228,107 @@ apply_setup_error_handler(Process* p, Eterm module, Eterm function, Uint arity, return ep; } +static ERTS_INLINE void +apply_bif_error_adjustment(Process *p, Export *ep, + Eterm *reg, Uint arity, + BeamInstr *I, Uint stack_offset) +{ + /* + * I is only set when the apply is a tail call, i.e., + * from the instructions i_apply_only, i_apply_last_P, + * and apply_last_IP. + */ + if (I + && ep->beam[0] == (BeamInstr) em_apply_bif + && (ep == bif_export[BIF_error_1] + || ep == bif_export[BIF_error_2] + || ep == bif_export[BIF_exit_1] + || ep == bif_export[BIF_throw_1])) { + /* + * We are about to tail apply one of the BIFs + * erlang:error/1, erlang:error/2, erlang:exit/1, + * or erlang:throw/1. Error handling of these BIFs is + * special! + * + * We need 'p->cp' to point into the calling + * function when handling the error after the BIF has + * been applied. This in order to get the topmost + * stackframe correct. Without the following adjustment, + * 'p->cp' will point into the function that called + * current function when handling the error. We add a + * dummy stackframe in order to achive this. + * + * Note that these BIFs unconditionally will cause + * an exception to be raised. That is, our modifications + * of 'p->cp' as well as the stack will be corrected by + * the error handling code. + * + * If we find an exception/return-to trace continuation + * pointer as the topmost continuation pointer, we do not + * need to do anything since the information already will + * be available for generation of the stacktrace. + */ + int apply_only = stack_offset == 0; + BeamInstr *cpp; + + if (apply_only) { + ASSERT(p->cp != NULL); + cpp = p->cp; + } + else { + ASSERT(is_CP(p->stop[0])); + cpp = cp_val(p->stop[0]); + } + + if (cpp != beam_exception_trace + && cpp != beam_return_trace + && cpp != beam_return_to_trace) { + Uint need = stack_offset /* bytes */ / sizeof(Eterm); + if (need == 0) + need = 1; /* i_apply_only */ + if (p->stop - p->htop < need) + erts_garbage_collect(p, (int) need, reg, arity+1); + p->stop -= need; + + if (apply_only) { + /* + * Called from the i_apply_only instruction. + * + * 'p->cp' contains continuation pointer pointing + * into the function that called current function. + * We push that continuation pointer onto the stack, + * and set 'p->cp' to point into current function. + */ + + p->stop[0] = make_cp(p->cp); + p->cp = I; + } + else { + /* + * Called from an i_apply_last_p, or apply_last_IP, + * instruction. + * + * Calling instruction will after we return read + * a continuation pointer from the stack and write + * it to 'p->cp', and then remove the topmost + * stackframe of size 'stack_offset'. + * + * We have sized the dummy-stackframe so that it + * will be removed by the instruction we currently + * are executing, and leave the stackframe that + * normally would have been removed intact. + * + */ + p->stop[0] = make_cp(I); + } + } + } +} + static BeamInstr* -apply(Process* p, Eterm module, Eterm function, Eterm args, Eterm* reg) +apply( +Process* p, Eterm module, Eterm function, Eterm args, Eterm* reg, +BeamInstr *I, Uint stack_offset) { int arity; Export* ep; @@ -6229,21 +6353,54 @@ apply(Process* p, Eterm module, Eterm function, Eterm args, Eterm* reg) return 0; } - /* The module argument may be either an atom or an abstract module - * (currently implemented using tuples, but this might change). - */ - this = THE_NON_VALUE; - if (is_not_atom(module)) { - Eterm* tp; + while (1) { + Eterm m, f, a; + /* The module argument may be either an atom or an abstract module + * (currently implemented using tuples, but this might change). + */ + this = THE_NON_VALUE; + if (is_not_atom(module)) { + Eterm* tp; + + if (is_not_tuple(module)) goto error; + tp = tuple_val(module); + if (arityval(tp[0]) < 1) goto error; + this = module; + module = tp[1]; + if (is_not_atom(module)) goto error; + } - if (is_not_tuple(module)) goto error; - tp = tuple_val(module); - if (arityval(tp[0]) < 1) goto error; - this = module; - module = tp[1]; - if (is_not_atom(module)) goto error; + if (module != am_erlang || function != am_apply) + break; + + /* Adjust for multiple apply of apply/3... */ + + a = args; + if (is_list(a)) { + Eterm *consp = list_val(a); + m = CAR(consp); + a = CDR(consp); + if (is_list(a)) { + consp = list_val(a); + f = CAR(consp); + a = CDR(consp); + if (is_list(a)) { + consp = list_val(a); + a = CAR(consp); + if (is_nil(CDR(consp))) { + /* erlang:apply/3 */ + module = m; + function = f; + args = a; + if (is_not_atom(f)) + goto error; + continue; + } + } + } + } + break; /* != erlang:apply/3 */ } - /* * Walk down the 3rd parameter of apply (the argument list) and copy * the parameters to the x registers (reg[]). If the module argument @@ -6281,12 +6438,14 @@ apply(Process* p, Eterm module, Eterm function, Eterm args, Eterm* reg) } else if (ERTS_PROC_GET_SAVED_CALLS_BUF(p)) { save_calls(p, ep); } + apply_bif_error_adjustment(p, ep, reg, arity, I, stack_offset); DTRACE_GLOBAL_CALL_FROM_EXPORT(p, ep); return ep->addressv[erts_active_code_ix()]; } static BeamInstr* -fixed_apply(Process* p, Eterm* reg, Uint arity) +fixed_apply(Process* p, Eterm* reg, Uint arity, + BeamInstr *I, Uint stack_offset) { Export* ep; Eterm module; @@ -6316,6 +6475,10 @@ fixed_apply(Process* p, Eterm* reg, Uint arity) if (is_not_atom(module)) goto error; ++arity; } + + /* Handle apply of apply/3... */ + if (module == am_erlang && function == am_apply && arity == 3) + return apply(p, reg[0], reg[1], reg[2], reg, I, stack_offset); /* * Get the index into the export table, or failing that the export @@ -6330,6 +6493,7 @@ fixed_apply(Process* p, Eterm* reg, Uint arity) } else if (ERTS_PROC_GET_SAVED_CALLS_BUF(p)) { save_calls(p, ep); } + apply_bif_error_adjustment(p, ep, reg, arity, I, stack_offset); DTRACE_GLOBAL_CALL_FROM_EXPORT(p, ep); return ep->addressv[erts_active_code_ix()]; } diff --git a/erts/emulator/beam/erl_bif_info.c b/erts/emulator/beam/erl_bif_info.c index 0e0842e139..009d2b72d3 100644 --- a/erts/emulator/beam/erl_bif_info.c +++ b/erts/emulator/beam/erl_bif_info.c @@ -1673,11 +1673,11 @@ current_stacktrace(Process* p, Process* rp, Eterm** hpp) Eterm mfa; Eterm res = NIL; - depth = 8; + depth = erts_backtrace_depth; sz = offsetof(struct StackTrace, trace) + sizeof(BeamInstr *)*depth; s = (struct StackTrace *) erts_alloc(ERTS_ALC_T_TMP, sz); s->depth = 0; - if (rp->i) { + if (depth > 0 && rp->i) { s->trace[s->depth++] = rp->i; depth--; } @@ -2863,6 +2863,9 @@ BIF_RETTYPE system_info_1(BIF_ALIST_1) else if (ERTS_IS_ATOM_STR("atom_limit",BIF_ARG_1)) { BIF_RET(make_small(erts_get_atom_limit())); } + else if (ERTS_IS_ATOM_STR("atom_count",BIF_ARG_1)) { + BIF_RET(make_small(atom_table_size())); + } else if (ERTS_IS_ATOM_STR("tolerant_timeofday",BIF_ARG_1)) { if (erts_has_time_correction() && erts_time_offset_state() == ERTS_TIME_OFFSET_FINAL) { diff --git a/erts/emulator/beam/erl_gc.c b/erts/emulator/beam/erl_gc.c index 28b2b02914..818f89f0e3 100644 --- a/erts/emulator/beam/erl_gc.c +++ b/erts/emulator/beam/erl_gc.c @@ -176,6 +176,13 @@ typedef struct { erts_smp_atomic32_t refc; } ErtsGCInfoReq; +#ifdef ERTS_DIRTY_SCHEDULERS +static struct { + erts_mtx_t mtx; + ErtsGCInfo info; +} dirty_gc; +#endif + static ERTS_INLINE int gc_cost(Uint gc_moved_live_words, Uint resize_moved_words) { @@ -259,6 +266,11 @@ erts_init_gc(void) init_gc_info(&esdp->gc_info); } +#ifdef ERTS_DIRTY_SCHEDULERS + erts_smp_mtx_init(&dirty_gc.mtx, "dirty_gc_info"); + init_gc_info(&dirty_gc.info); +#endif + init_gcireq_alloc(); } @@ -735,8 +747,19 @@ do_major_collection: monitor_large_heap(p); } - esdp->gc_info.garbage_cols++; - esdp->gc_info.reclaimed += reclaimed_now; +#ifdef ERTS_DIRTY_SCHEDULERS + if (ERTS_SCHEDULER_IS_DIRTY(esdp)) { + erts_mtx_lock(&dirty_gc.mtx); + dirty_gc.info.garbage_cols++; + dirty_gc.info.reclaimed += reclaimed_now; + erts_mtx_unlock(&dirty_gc.mtx); + } + else +#endif + { + esdp->gc_info.garbage_cols++; + esdp->gc_info.reclaimed += reclaimed_now; + } FLAGS(p) &= ~F_FORCE_GC; p->live_hf_end = ERTS_INVALID_HFRAG_PTR; @@ -3009,6 +3032,18 @@ reply_gc_info(void *vgcirp) reclaimed = esdp->gc_info.reclaimed; garbage_cols = esdp->gc_info.garbage_cols; +#ifdef ERTS_DIRTY_SCHEDULERS + /* + * Add dirty schedulers info on requesting + * schedulers info + */ + if (gcirp->req_sched == esdp->no) { + erts_mtx_lock(&dirty_gc.mtx); + reclaimed += dirty_gc.info.reclaimed; + garbage_cols += dirty_gc.info.garbage_cols; + erts_mtx_unlock(&dirty_gc.mtx); + } +#endif sz = 0; hpp = NULL; diff --git a/erts/emulator/beam/erl_hl_timer.c b/erts/emulator/beam/erl_hl_timer.c index d29d079fc5..38bebc7576 100644 --- a/erts/emulator/beam/erl_hl_timer.c +++ b/erts/emulator/beam/erl_hl_timer.c @@ -2666,7 +2666,7 @@ erts_start_timer_callback(ErtsMonotonicTime tmo, tmo); twt = tmo < ERTS_TIMER_WHEEL_MSEC; - if (esdp) + if (esdp && !ERTS_SCHEDULER_IS_DIRTY(esdp)) start_callback_timer(esdp, twt, timeout_pos, diff --git a/erts/emulator/beam/erl_lock_check.c b/erts/emulator/beam/erl_lock_check.c index 356f5ca71e..5f2a687f74 100644 --- a/erts/emulator/beam/erl_lock_check.c +++ b/erts/emulator/beam/erl_lock_check.c @@ -127,6 +127,7 @@ static erts_lc_lock_order_t erts_lock_order[] = { { "run_queue", "address" }, #ifdef ERTS_DIRTY_SCHEDULERS { "dirty_run_queue_sleep_list", "address" }, + { "dirty_gc_info", NULL }, #endif { "process_table", NULL }, { "cpu_info", NULL }, diff --git a/erts/emulator/beam/erl_process.c b/erts/emulator/beam/erl_process.c index 4fb0f9e975..a6fdd67088 100644 --- a/erts/emulator/beam/erl_process.c +++ b/erts/emulator/beam/erl_process.c @@ -2059,6 +2059,7 @@ handle_thr_prgr_later_op(ErtsAuxWorkData *awdp, erts_aint32_t aux_work, int wait #endif for (lops = 0; lops < ERTS_MAX_THR_PRGR_LATER_OPS; lops++) { ErtsThrPrgrLaterOp *lop = awdp->later_op.first; + if (!erts_thr_progress_has_reached_this(current, lop->later)) return aux_work & ~ERTS_SSI_AUX_WORK_THR_PRGR_LATER_OP; awdp->later_op.first = lop->next; @@ -6233,6 +6234,12 @@ check_dirty_enqueue_in_prio_queue(Process *c_p, int queue; erts_aint32_t dact, max_qbit; + /* Do not enqueue free process... */ + if (actual & ERTS_PSFLG_FREE) { + *newp &= ~ERTS_PSFLGS_DIRTY_WORK; + return ERTS_ENQUEUE_NOT; + } + /* Termination should be done on an ordinary scheduler */ if ((*newp) & ERTS_PSFLG_EXITING) { *newp &= ~ERTS_PSFLGS_DIRTY_WORK; @@ -6425,6 +6432,9 @@ select_enqueue_run_queue(int enqueue, int enq_prio, Process *p, erts_aint32_t st /* * schedule_out_process() return with c_rq locked. + * + * Return non-zero value if caller should decrease + * reference count on the process when done with it... */ static ERTS_INLINE int schedule_out_process(ErtsRunQueue *c_rq, erts_aint32_t state, Process *p, @@ -6479,12 +6489,18 @@ schedule_out_process(ErtsRunQueue *c_rq, erts_aint32_t state, Process *p, erts_smp_runq_lock(c_rq); - return 0; - +#if !defined(ERTS_SMP) + /* Decrement refc if process struct is free... */ + return !!(n & ERTS_PSFLG_FREE); +#else + /* Decrement refc if scheduled out from dirty scheduler... */ + return !is_normal_sched; +#endif } else { Process* sched_p; + ASSERT(!(n & ERTS_PSFLG_FREE)); ASSERT(!(n & ERTS_PSFLG_SUSPENDED) || (n & (ERTS_PSFLG_ACTIVE_SYS | ERTS_PSFLG_DIRTY_ACTIVE_SYS))); @@ -6500,11 +6516,14 @@ schedule_out_process(ErtsRunQueue *c_rq, erts_aint32_t state, Process *p, erts_smp_runq_lock(runq); + if (is_normal_sched && sched_p == p && ERTS_RUNQ_IX_IS_DIRTY(runq->ix)) + erts_proc_inc_refc(p); /* Needs to be done before enqueue_process() */ + /* Enqueue the process */ enqueue_process(runq, (int) enq_prio, sched_p); if (runq == c_rq) - return 1; + return 0; erts_smp_runq_unlock(runq); @@ -6512,9 +6531,15 @@ schedule_out_process(ErtsRunQueue *c_rq, erts_aint32_t state, Process *p, erts_smp_runq_lock(c_rq); - return 1; + /* + * Decrement refc if process is scheduled out by a + * dirty scheduler, and we have not just scheduled + * the process using the ordinary process struct + * on a dirty run-queue again... + */ + return !is_normal_sched && (sched_p != p + || !ERTS_RUNQ_IX_IS_DIRTY(runq->ix)); } - } static ERTS_INLINE void @@ -6529,8 +6554,17 @@ add2runq(int enqueue, erts_aint32_t prio, if (runq) { Process *sched_p; - if (enqueue > 0) + if (enqueue > 0) { sched_p = proc; + /* + * Refc on process struct (i.e. true struct, + * not proxy-struct) increased while in a + * dirty run-queue or executing on a dirty + * scheduler. + */ + if (ERTS_RUNQ_IX_IS_DIRTY(runq->ix)) + erts_proc_inc_refc(proc); + } else { Process *pxy; @@ -7054,12 +7088,18 @@ typedef struct { } ErtsSchdlrSspndResume; static void -schdlr_sspnd_resume_proc(Eterm pid) +schdlr_sspnd_resume_proc(ErtsSchedType sched_type, Eterm pid) { - Process *p = erts_pid2proc(NULL, 0, pid, ERTS_PROC_LOCK_STATUS); + Process *p; + p = erts_pid2proc_opt(NULL, 0, pid, ERTS_PROC_LOCK_STATUS, + (sched_type != ERTS_SCHED_NORMAL + ? ERTS_P2P_FLG_INC_REFC + : 0)); if (p) { resume_process(p, ERTS_PROC_LOCK_STATUS); erts_smp_proc_unlock(p, ERTS_PROC_LOCK_STATUS); + if (sched_type != ERTS_SCHED_NORMAL) + erts_proc_dec_refc(p); } } @@ -7068,17 +7108,20 @@ schdlr_sspnd_resume_procs(ErtsSchedType sched_type, ErtsSchdlrSspndResume *resume) { if (is_internal_pid(resume->onln.chngr)) { - schdlr_sspnd_resume_proc(resume->onln.chngr); + schdlr_sspnd_resume_proc(sched_type, + resume->onln.chngr); resume->onln.chngr = NIL; } if (is_internal_pid(resume->onln.nxt)) { - schdlr_sspnd_resume_proc(resume->onln.nxt); + schdlr_sspnd_resume_proc(sched_type, + resume->onln.nxt); resume->onln.nxt = NIL; } while (resume->msb.chngrs) { ErtsProcList *plp = resume->msb.chngrs; resume->msb.chngrs = plp->next; - schdlr_sspnd_resume_proc(plp->pid); + schdlr_sspnd_resume_proc(sched_type, + plp->pid); proclist_destroy(plp); } } @@ -7130,16 +7173,8 @@ suspend_scheduler(ErtsSchedulerData *esdp) ASSERT(sched_type != ERTS_SCHED_NORMAL || no != 1); - if (sched_type != ERTS_SCHED_NORMAL) { - if (erts_smp_mtx_trylock(&schdlr_sspnd.mtx) == EBUSY) { - erts_smp_runq_unlock(esdp->run_queue); - erts_smp_mtx_lock(&schdlr_sspnd.mtx); - erts_smp_runq_lock(esdp->run_queue); - } - if (schdlr_sspnd.msb.ongoing) - evacuate_run_queue(esdp->run_queue, &sbp); + if (sched_type != ERTS_SCHED_NORMAL) erts_smp_runq_unlock(esdp->run_queue); - } else { evacuate_run_queue(esdp->run_queue, &sbp); @@ -7152,8 +7187,8 @@ suspend_scheduler(ErtsSchedulerData *esdp) sched_wall_time_change(esdp, 0); - erts_smp_mtx_lock(&schdlr_sspnd.mtx); } + erts_smp_mtx_lock(&schdlr_sspnd.mtx); flgs = sched_prep_spin_suspended(ssi, ERTS_SSI_FLG_SUSPENDED); if (flgs & ERTS_SSI_FLG_SUSPENDED) { @@ -7197,15 +7232,18 @@ suspend_scheduler(ErtsSchedulerData *esdp) (void) erts_proclist_fetch(&msb[i]->chngq, &end_plp); /* resume processes that initiated the multi scheduling block... */ plp = msb[i]->chngq; - while (plp) { - erts_proclist_store_last(&msb[i]->blckrs, - proclist_copy(plp)); - plp = plp->next; - } - if (end_plp) + if (plp) { + ASSERT(end_plp); + ASSERT(msb[i]->ongoing); + do { + erts_proclist_store_last(&msb[i]->blckrs, + proclist_copy(plp)); + plp = plp->next; + } while (plp); end_plp->next = resume.msb.chngrs; - resume.msb.chngrs = msb[i]->chngq; - msb[i]->chngq = NULL; + resume.msb.chngrs = msb[i]->chngq; + msb[i]->chngq = NULL; + } } } } @@ -7269,24 +7307,14 @@ suspend_scheduler(ErtsSchedulerData *esdp) while (1) { ErtsMonotonicTime current_time; - erts_aint32_t qmask; erts_aint32_t flgs; - qmask = (ERTS_RUNQ_FLGS_GET(esdp->run_queue) - & ERTS_RUNQ_FLGS_QMASK); - - if (sched_type != ERTS_SCHED_NORMAL) { - if (qmask) { - erts_smp_mtx_lock(&schdlr_sspnd.mtx); - erts_smp_runq_lock(esdp->run_queue); - if (schdlr_sspnd.msb.ongoing) - evacuate_run_queue(esdp->run_queue, &sbp); - erts_smp_runq_unlock(esdp->run_queue); - erts_smp_mtx_unlock(&schdlr_sspnd.mtx); - } + if (sched_type != ERTS_SCHED_NORMAL) aux_work = 0; - } else { + erts_aint32_t qmask; + qmask = (ERTS_RUNQ_FLGS_GET(esdp->run_queue) + & ERTS_RUNQ_FLGS_QMASK); aux_work = erts_atomic32_read_acqb(&ssi->aux_work); @@ -7414,12 +7442,23 @@ suspend_scheduler(ErtsSchedulerData *esdp) schdlr_sspnd_inc_nscheds(&schdlr_sspnd.active, sched_type); changing = erts_smp_atomic32_read_nob(&schdlr_sspnd.changing); - if ((changing & ERTS_SCHDLR_SSPND_CHNG_MSB) - && schdlr_sspnd.online == schdlr_sspnd.active) { - erts_smp_atomic32_read_band_nob(&schdlr_sspnd.changing, - ~ERTS_SCHDLR_SSPND_CHNG_MSB); - } - + if (changing) { + if ((changing & ERTS_SCHDLR_SSPND_CHNG_MSB) + && !schdlr_sspnd.msb.ongoing + && schdlr_sspnd.online == schdlr_sspnd.active) { + erts_smp_atomic32_read_band_nob(&schdlr_sspnd.changing, + ~ERTS_SCHDLR_SSPND_CHNG_MSB); + } + if ((changing & ERTS_SCHDLR_SSPND_CHNG_NMSB) + && !schdlr_sspnd.nmsb.ongoing + && (schdlr_sspnd_get_nscheds(&schdlr_sspnd.online, + ERTS_SCHED_NORMAL) + == schdlr_sspnd_get_nscheds(&schdlr_sspnd.active, + ERTS_SCHED_NORMAL))) { + erts_smp_atomic32_read_band_nob(&schdlr_sspnd.changing, + ~ERTS_SCHDLR_SSPND_CHNG_NMSB); + } + } ASSERT(no <= schdlr_sspnd_get_nscheds(&schdlr_sspnd.online, sched_type)); ASSERT((sched_type == ERTS_SCHED_NORMAL ? !(schdlr_sspnd.msb.ongoing|schdlr_sspnd.nmsb.ongoing) @@ -7552,7 +7591,7 @@ abort_sched_onln_chng_waitq(Process *p) erts_smp_mtx_unlock(&schdlr_sspnd.mtx); if (is_internal_pid(resume)) - schdlr_sspnd_resume_proc(resume); + schdlr_sspnd_resume_proc(ERTS_SCHED_NORMAL, resume); } ErtsSchedSuspendResult @@ -7950,21 +7989,20 @@ erts_block_multi_scheduling(Process *p, ErtsProcLocks plocks, int on, int normal } else { /* ------ UNBLOCK ------ */ if (p->flags & have_blckd_flg) { - ErtsProcList *plps[2]; + ErtsProcList **plpps[3] = {0}; ErtsProcList *plp; - int limit = 0; - plps[limit++] = erts_proclist_peek_first(msbp->blckrs); - if (all) - plps[limit++] = erts_proclist_peek_first(msbp->chngq); + plpps[0] = &msbp->blckrs; + if (all) + plpps[1] = &msbp->chngq; - for (ix = 0; ix < limit; ix++) { - plp = plps[ix]; + for (ix = 0; plpps[ix]; ix++) { + plp = erts_proclist_peek_first(*plpps[ix]); while (plp) { ErtsProcList *tmp_plp = plp; - plp = erts_proclist_peek_next(msbp->blckrs, plp); + plp = erts_proclist_peek_next(*plpps[ix], plp); if (erts_proclist_same(tmp_plp, p)) { - erts_proclist_remove(&msbp->blckrs, tmp_plp); + erts_proclist_remove(plpps[ix], tmp_plp); proclist_destroy(tmp_plp); if (!all) break; @@ -9587,40 +9625,45 @@ Process *erts_schedule(ErtsSchedulerData *esdp, Process *p, int calls) esdp->reductions += reds; - /* schedule_out_process() returns with rq locked! */ - schedule_out_process(rq, state, p, proxy_p, is_normal_sched); - proxy_p = NULL; + { + int dec_refc; - ERTS_PROC_REDUCTIONS_EXECUTED(esdp, rq, - (int) ERTS_PSFLGS_GET_USR_PRIO(state), - reds, - actual_reds); + /* schedule_out_process() returns with rq locked! */ + dec_refc = schedule_out_process(rq, state, p, + proxy_p, is_normal_sched); + proxy_p = NULL; - esdp->current_process = NULL; + ERTS_PROC_REDUCTIONS_EXECUTED(esdp, rq, + (int) ERTS_PSFLGS_GET_USR_PRIO(state), + reds, + actual_reds); + + esdp->current_process = NULL; #ifdef ERTS_SMP - p->scheduler_data = NULL; + p->scheduler_data = NULL; #endif - erts_smp_proc_unlock(p, (ERTS_PROC_LOCK_MAIN - | ERTS_PROC_LOCK_STATUS - | ERTS_PROC_LOCK_TRACE)); + erts_smp_proc_unlock(p, (ERTS_PROC_LOCK_MAIN + | ERTS_PROC_LOCK_STATUS + | ERTS_PROC_LOCK_TRACE)); - ERTS_MSACC_SET_STATE_CACHED_M(ERTS_MSACC_STATE_OTHER); + ERTS_MSACC_SET_STATE_CACHED_M(ERTS_MSACC_STATE_OTHER); - if (state & ERTS_PSFLG_FREE) { - if (!is_normal_sched) { - ASSERT(p->flags & F_DELAYED_DEL_PROC); - erts_proc_dec_refc(p); - } - else { #ifdef ERTS_SMP - ASSERT(esdp->free_process == p); - esdp->free_process = NULL; -#else - erts_proc_dec_refc(p); + if (state & ERTS_PSFLG_FREE) { + if (!is_normal_sched) { + ASSERT(p->flags & F_DELAYED_DEL_PROC); + } + else { + ASSERT(esdp->free_process == p); + esdp->free_process = NULL; + } + } #endif - } - } + + if (dec_refc) + erts_proc_dec_refc(p); + } #ifdef ERTS_SMP ASSERT(!esdp->free_process); @@ -9896,8 +9939,12 @@ Process *erts_schedule(ErtsSchedulerData *esdp, Process *p, int calls) if (!(state & ERTS_PSFLG_PROXY)) psflg_band_mask &= ~ERTS_PSFLG_IN_RUNQ; else { + Eterm pid = p->common.id; proxy_p = p; - p = erts_proc_lookup_raw(proxy_p->common.id); + p = (is_normal_sched + ? erts_proc_lookup_raw(pid) + : erts_pid2proc_opt(NULL, 0, pid, 0, + ERTS_P2P_FLG_INC_REFC)); if (!p) { free_proxy_proc(proxy_p); proxy_p = NULL; @@ -9929,6 +9976,7 @@ Process *erts_schedule(ErtsSchedulerData *esdp, Process *p, int calls) | ERTS_PSFLG_FREE))) #ifdef ERTS_DIRTY_SCHEDULERS | (((state & (ERTS_PSFLG_RUNNING + | ERTS_PSFLG_FREE | ERTS_PSFLG_RUNNING_SYS | ERTS_PSFLG_EXITING)) @@ -9961,6 +10009,8 @@ Process *erts_schedule(ErtsSchedulerData *esdp, Process *p, int calls) /* free and not queued by proxy */ erts_proc_dec_refc(p); } + if (!is_normal_sched) + erts_proc_dec_refc(p); goto pick_next_process; } state = new; @@ -13094,15 +13144,14 @@ erts_continue_exit_process(Process *p) } #ifdef ERTS_DIRTY_SCHEDULERS - if (a & (ERTS_PSFLG_DIRTY_RUNNING - | ERTS_PSFLG_DIRTY_RUNNING_SYS)) { + if (a & (ERTS_PSFLG_DIRTY_RUNNING + | ERTS_PSFLG_DIRTY_RUNNING_SYS)) { p->flags |= F_DELAYED_DEL_PROC; delay_del_proc = 1; /* - * The dirty scheduler will also decrease - * refc when done... + * The dirty scheduler decrease refc + * when done with the process... */ - erts_proc_inc_refc(p); } #endif diff --git a/erts/emulator/beam/erl_process.h b/erts/emulator/beam/erl_process.h index 1c4b9f149d..7193b7d1db 100644 --- a/erts/emulator/beam/erl_process.h +++ b/erts/emulator/beam/erl_process.h @@ -1681,7 +1681,7 @@ ERTS_GLB_INLINE ErtsProcList *erts_proclist_fetch_first(ErtsProcList **list) return NULL; else { ErtsProcList *res = *list; - if (res == *list) + if (res->next == *list) *list = NULL; else *list = res->next; diff --git a/erts/emulator/drivers/common/efile_drv.c b/erts/emulator/drivers/common/efile_drv.c index 3adb8db661..d64f015a6a 100644 --- a/erts/emulator/drivers/common/efile_drv.c +++ b/erts/emulator/drivers/common/efile_drv.c @@ -1937,7 +1937,8 @@ static void free_sendfile(void *data) { MUTEX_LOCK(d->c.sendfile.q_mtx); driver_deq(d->c.sendfile.port,1); MUTEX_UNLOCK(d->c.sendfile.q_mtx); - driver_select(d->c.sendfile.port, (ErlDrvEvent)(long)d->c.sendfile.out_fd, ERL_DRV_USE_NO_CALLBACK|ERL_DRV_WRITE, 0); + driver_select(d->c.sendfile.port, (ErlDrvEvent)(long)d->c.sendfile.out_fd, + ERL_DRV_USE_NO_CALLBACK|ERL_DRV_WRITE, 0); } EF_FREE(data); } @@ -2555,7 +2556,7 @@ file_async_ready(ErlDrvData e, ErlDrvThreadData data) desc->sendfile_state = sending; desc->d = d; driver_select(desc->port, (ErlDrvEvent)(long)d->c.sendfile.out_fd, - ERL_DRV_USE_NO_CALLBACK|ERL_DRV_WRITE, 1); + ERL_DRV_USE|ERL_DRV_WRITE, 1); } break; #endif diff --git a/erts/emulator/test/bif_SUITE.erl b/erts/emulator/test/bif_SUITE.erl index b8d89126fe..f70fb0e501 100644 --- a/erts/emulator/test/bif_SUITE.erl +++ b/erts/emulator/test/bif_SUITE.erl @@ -32,7 +32,8 @@ binary_to_atom/1,binary_to_existing_atom/1, atom_to_binary/1,min_max/1, erlang_halt/1, erl_crash_dump_bytes/1, - is_builtin/1]). + is_builtin/1, error_stacktrace/1, + error_stacktrace_during_call_trace/1]). suite() -> [{ct_hooks,[ts_install_cth]}, @@ -44,8 +45,8 @@ all() -> t_list_to_existing_atom, os_env, otp_7526, display, atom_to_binary, binary_to_atom, binary_to_existing_atom, - erl_crash_dump_bytes, - min_max, erlang_halt, is_builtin]. + erl_crash_dump_bytes, min_max, erlang_halt, is_builtin, + error_stacktrace, error_stacktrace_during_call_trace]. %% Uses erlang:display to test that erts_printf does not do deep recursion display(Config) when is_list(Config) -> @@ -727,6 +728,172 @@ is_builtin(_Config) -> ok. +error_stacktrace(Config) when is_list(Config) -> + error_stacktrace_test(). + +error_stacktrace_during_call_trace(Config) when is_list(Config) -> + Tracer = spawn_link(fun () -> + receive after infinity -> ok end + end), + Mprog = [{'_',[],[{exception_trace}]}], + erlang:trace_pattern({?MODULE,'_','_'}, Mprog, [local]), + 1 = erlang:trace_pattern({erlang,error,2}, Mprog, [local]), + 1 = erlang:trace_pattern({erlang,error,1}, Mprog, [local]), + erlang:trace(all, true, [call,return_to,timestamp,{tracer, Tracer}]), + try + error_stacktrace_test() + after + erlang:trace(all, false, [call,return_to,timestamp,{tracer, Tracer}]), + erlang:trace_pattern({erlang,error,2}, false, [local]), + erlang:trace_pattern({erlang,error,1}, false, [local]), + erlang:trace_pattern({?MODULE,'_','_'}, false, [local]), + unlink(Tracer), + exit(Tracer, kill), + Mon = erlang:monitor(process, Tracer), + receive + {'DOWN', Mon, process, Tracer, _} -> ok + end + end, + ok. + + +error_stacktrace_test() -> + Types = [apply_const_last, apply_const, apply_last, + apply, double_apply_const_last, double_apply_const, + double_apply_last, double_apply, multi_apply_const_last, + multi_apply_const, multi_apply_last, multi_apply, + call_const_last, call_last, call_const, call], + lists:foreach(fun (Type) -> + {Pid, Mon} = spawn_monitor( + fun () -> + stk([a,b,c,d], Type, error_2) + end), + receive + {'DOWN', Mon, process, Pid, Reason} -> + {oops, Stack} = Reason, +%% io:format("Type: ~p Stack: ~p~n", +%% [Type, Stack]), + [{?MODULE, do_error_2, [Type], _}, + {?MODULE, stk, 3, _}, + {?MODULE, stk, 3, _}] = Stack + end + end, + Types), + lists:foreach(fun (Type) -> + {Pid, Mon} = spawn_monitor( + fun () -> + stk([a,b,c,d], Type, error_1) + end), + receive + {'DOWN', Mon, process, Pid, Reason} -> + {oops, Stack} = Reason, +%% io:format("Type: ~p Stack: ~p~n", +%% [Type, Stack]), + [{?MODULE, do_error_1, 1, _}, + {?MODULE, stk, 3, _}, + {?MODULE, stk, 3, _}] = Stack + end + end, + Types), + ok. + +stk([], Type, Func) -> + tail(Type, Func, jump), + ok; +stk([_|L], Type, Func) -> + stk(L, Type, Func), + ok. + +tail(Type, Func, jump) -> + tail(Type, Func, do); +tail(Type, error_1, do) -> + do_error_1(Type); +tail(Type, error_2, do) -> + do_error_2(Type). + +do_error_2(apply_const_last) -> + erlang:apply(erlang, error, [oops, [apply_const_last]]); +do_error_2(apply_const) -> + erlang:apply(erlang, error, [oops, [apply_const]]), + ok; +do_error_2(apply_last) -> + erlang:apply(id(erlang), id(error), id([oops, [apply_last]])); +do_error_2(apply) -> + erlang:apply(id(erlang), id(error), id([oops, [apply]])), + ok; +do_error_2(double_apply_const_last) -> + erlang:apply(erlang, apply, [erlang, error, [oops, [double_apply_const_last]]]); +do_error_2(double_apply_const) -> + erlang:apply(erlang, apply, [erlang, error, [oops, [double_apply_const]]]), + ok; +do_error_2(double_apply_last) -> + erlang:apply(id(erlang), id(apply), [id(erlang), id(error), id([oops, [double_apply_last]])]); +do_error_2(double_apply) -> + erlang:apply(id(erlang), id(apply), [id(erlang), id(error), id([oops, [double_apply]])]), + ok; +do_error_2(multi_apply_const_last) -> + erlang:apply(erlang, apply, [erlang, apply, [erlang, apply, [erlang, error, [oops, [multi_apply_const_last]]]]]); +do_error_2(multi_apply_const) -> + erlang:apply(erlang, apply, [erlang, apply, [erlang, apply, [erlang, error, [oops, [multi_apply_const]]]]]), + ok; +do_error_2(multi_apply_last) -> + erlang:apply(id(erlang), id(apply), [id(erlang), id(apply), [id(erlang), id(apply), [id(erlang), id(error), id([oops, [multi_apply_last]])]]]); +do_error_2(multi_apply) -> + erlang:apply(id(erlang), id(apply), [id(erlang), id(apply), [id(erlang), id(apply), [id(erlang), id(error), id([oops, [multi_apply]])]]]), + ok; +do_error_2(call_const_last) -> + erlang:error(oops, [call_const_last]); +do_error_2(call_last) -> + erlang:error(id(oops), id([call_last])); +do_error_2(call_const) -> + erlang:error(oops, [call_const]), + ok; +do_error_2(call) -> + erlang:error(id(oops), id([call])). + + +do_error_1(apply_const_last) -> + erlang:apply(erlang, error, [oops]); +do_error_1(apply_const) -> + erlang:apply(erlang, error, [oops]), + ok; +do_error_1(apply_last) -> + erlang:apply(id(erlang), id(error), id([oops])); +do_error_1(apply) -> + erlang:apply(id(erlang), id(error), id([oops])), + ok; +do_error_1(double_apply_const_last) -> + erlang:apply(erlang, apply, [erlang, error, [oops]]); +do_error_1(double_apply_const) -> + erlang:apply(erlang, apply, [erlang, error, [oops]]), + ok; +do_error_1(double_apply_last) -> + erlang:apply(id(erlang), id(apply), [id(erlang), id(error), id([oops])]); +do_error_1(double_apply) -> + erlang:apply(id(erlang), id(apply), [id(erlang), id(error), id([oops])]), + ok; +do_error_1(multi_apply_const_last) -> + erlang:apply(erlang, apply, [erlang, apply, [erlang, apply, [erlang, error, [oops]]]]); +do_error_1(multi_apply_const) -> + erlang:apply(erlang, apply, [erlang, apply, [erlang, apply, [erlang, error, [oops]]]]), + ok; +do_error_1(multi_apply_last) -> + erlang:apply(id(erlang), id(apply), [id(erlang), id(apply), [id(erlang), id(apply), [id(erlang), id(error), id([oops])]]]); +do_error_1(multi_apply) -> + erlang:apply(id(erlang), id(apply), [id(erlang), id(apply), [id(erlang), id(apply), [id(erlang), id(error), id([oops])]]]), + ok; +do_error_1(call_const_last) -> + erlang:error(oops); +do_error_1(call_last) -> + erlang:error(id(oops)); +do_error_1(call_const) -> + erlang:error(oops), + ok; +do_error_1(call) -> + erlang:error(id(oops)). + + + %% Helpers diff --git a/erts/emulator/test/call_trace_SUITE.erl b/erts/emulator/test/call_trace_SUITE.erl index 6ba6301c7c..f7ff04430a 100644 --- a/erts/emulator/test/call_trace_SUITE.erl +++ b/erts/emulator/test/call_trace_SUITE.erl @@ -1090,8 +1090,7 @@ exception_nocatch() -> {trace,t2,exception_from,{erlang,throw,1}, {error,{nocatch,Q2}}}], exception_from, {error,{nocatch,Q2}}), - expect({trace,T2,exit,{{nocatch,Q2},[{erlang,throw,[Q2],[]}, - {?MODULE,deep_4,1, + expect({trace,T2,exit,{{nocatch,Q2},[{?MODULE,deep_4,1, Deep4LocThrow}]}}), Q3 = {dump,[dump,{dump}]}, T3 = @@ -1100,8 +1099,7 @@ exception_nocatch() -> {trace,t3,exception_from,{erlang,error,1}, {error,Q3}}], exception_from, {error,Q3}), - expect({trace,T3,exit,{Q3,[{erlang,error,[Q3],[]}, - {?MODULE,deep_4,1,Deep4LocError}]}}), + expect({trace,T3,exit,{Q3,[{?MODULE,deep_4,1,Deep4LocError}]}}), T4 = exception_nocatch(?LINE, '=', [17,4711], 5, [], exception_from, {error,{badmatch,4711}}), diff --git a/erts/emulator/test/driver_SUITE_data/chkio_drv.c b/erts/emulator/test/driver_SUITE_data/chkio_drv.c index 614b68e865..8e5e81665c 100644 --- a/erts/emulator/test/driver_SUITE_data/chkio_drv.c +++ b/erts/emulator/test/driver_SUITE_data/chkio_drv.c @@ -1397,10 +1397,18 @@ static void assert_print(char* str, int line) static void assert_failed(ErlDrvPort port, char* str, int line) { char buf[30]; + size_t bufsz = sizeof(buf); + assert_print(str,line); - snprintf(buf,sizeof(buf),"failed_at_line_%d",line); - driver_failure_atom(port,buf); - /*abort();*/ + + if (erl_drv_getenv("ERL_ABORT_ON_FAILURE", buf, &bufsz) == 0 + && (strcmp("true", buf) == 0 || strcmp("yes", buf) == 0)) { + abort(); + } + else { + snprintf(buf,sizeof(buf),"failed_at_line_%d",line); + driver_failure_atom(port,buf); + } } #define my_driver_select(PORT,FD,MODE,ON) \ diff --git a/erts/emulator/test/port_SUITE.erl b/erts/emulator/test/port_SUITE.erl index d4e77d634a..23594aa8c4 100644 --- a/erts/emulator/test/port_SUITE.erl +++ b/erts/emulator/test/port_SUITE.erl @@ -2292,7 +2292,7 @@ maybe_to_list(List) -> List. format({Eol,List}) -> - io_lib:format("tuple<~w,~s>",[Eol, maybe_to_list(List)]); + io_lib:format("tuple<~w,~w>",[Eol, maybe_to_list(List)]); format(List) when is_list(List) -> case list_at_least(50, List) of true -> diff --git a/erts/emulator/test/port_SUITE_data/Makefile.src b/erts/emulator/test/port_SUITE_data/Makefile.src index fb7685c4b6..3a343e6d17 100644 --- a/erts/emulator/test/port_SUITE_data/Makefile.src +++ b/erts/emulator/test/port_SUITE_data/Makefile.src @@ -20,6 +20,12 @@ echo_args@exe@: echo_args@obj@ echo_args@obj@: echo_args.c $(CC) -c -o echo_args@obj@ $(CFLAGS) echo_args.c +dead_port@exe@: dead_port@obj@ + $(LD) $(CROSSLDFLAGS) -o dead_port dead_port@obj@ @LIBS@ + +dead_port@obj@: dead_port.c + $(CC) -c -o dead_port@obj@ $(CFLAGS) dead_port.c + port_test.@EMULATOR@: port_test.erl @erl_name@ -compile port_test diff --git a/erts/emulator/test/port_SUITE_data/port_test.c b/erts/emulator/test/port_SUITE_data/port_test.c index cc3ebdf0f8..e199a0fc13 100644 --- a/erts/emulator/test/port_SUITE_data/port_test.c +++ b/erts/emulator/test/port_SUITE_data/port_test.c @@ -10,6 +10,7 @@ #include <sys/types.h> #include <sys/stat.h> #include <fcntl.h> +#include <ctype.h> #ifndef __WIN32__ #include <unistd.h> @@ -33,7 +34,7 @@ exit(1); \ } -#define MAIN(argc, argv) main(argc, argv) +#define ASSERT(e) ((void) ((e) ? 1 : abort())) extern int errno; @@ -105,9 +106,7 @@ int err; #endif -MAIN(argc, argv) -int argc; -char *argv[]; +int main(int argc, char *argv[]) { int ret, fd_count; if((port_data = (PORT_TEST_DATA *) malloc(sizeof(PORT_TEST_DATA))) == NULL) { @@ -377,9 +376,11 @@ write_reply(buf, size) int size; /* Size of buffer to send. */ { int n; /* Temporary to hold size. */ + int rv; if (port_data->slow_writes <= 0) { /* Normal, "fast", write. */ - write(port_data->fd_to_erl, buf, size); + rv = write(port_data->fd_to_erl, buf, size); + ASSERT(rv == size); } else { /* * Write chunks with delays in between. @@ -387,7 +388,8 @@ write_reply(buf, size) while (size > 0) { n = size > port_data->slow_writes ? port_data->slow_writes : size; - write(port_data->fd_to_erl, buf, n); + rv = write(port_data->fd_to_erl, buf, n); + ASSERT(rv == n); size -= n; buf += n; if (size) @@ -558,7 +560,7 @@ char* spec; /* Specification for reply. */ buf = (char *) malloc(total_size); if (buf == NULL) { fprintf(stderr, "%s: insufficent memory for reply buffer of size %d\n", - port_data->progname, total_size); + port_data->progname, (int)total_size); exit(1); } diff --git a/erts/emulator/test/process_SUITE.erl b/erts/emulator/test/process_SUITE.erl index e035fc64fe..3b8f0072f2 100644 --- a/erts/emulator/test/process_SUITE.erl +++ b/erts/emulator/test/process_SUITE.erl @@ -437,11 +437,22 @@ t_process_info(Config) when is_list(Config) -> verify_loc(Line2, Res2), pi_stacktrace([{?MODULE,t_process_info,1,?LINE}]), + verify_stacktrace_depth(), + Gleader = group_leader(), {group_leader, Gleader} = process_info(self(), group_leader), {'EXIT',{badarg,_Info}} = (catch process_info('not_a_pid')), ok. +verify_stacktrace_depth() -> + CS = current_stacktrace, + OldDepth = erlang:system_flag(backtrace_depth, 0), + {CS,[]} = erlang:process_info(self(), CS), + _ = erlang:system_flag(backtrace_depth, 8), + {CS,[{?MODULE,verify_stacktrace_depth,0,_},_|_]} = + erlang:process_info(self(), CS), + _ = erlang:system_flag(backtrace_depth, OldDepth). + pi_stacktrace(Expected0) -> {Line,Res} = {?LINE,erlang:process_info(self(), current_stacktrace)}, {current_stacktrace,Stack} = Res, diff --git a/erts/emulator/test/system_info_SUITE.erl b/erts/emulator/test/system_info_SUITE.erl index 3d9e74472b..6a772bf7c9 100644 --- a/erts/emulator/test/system_info_SUITE.erl +++ b/erts/emulator/test/system_info_SUITE.erl @@ -36,7 +36,8 @@ -export([all/0, suite/0]). -export([process_count/1, system_version/1, misc_smoke_tests/1, - heap_size/1, wordsize/1, memory/1, ets_limit/1, atom_limit/1]). + heap_size/1, wordsize/1, memory/1, ets_limit/1, atom_limit/1, + atom_count/1]). suite() -> [{ct_hooks,[ts_install_cth]}, @@ -44,7 +45,7 @@ suite() -> all() -> [process_count, system_version, misc_smoke_tests, - heap_size, wordsize, memory, ets_limit, atom_limit]. + heap_size, wordsize, memory, ets_limit, atom_limit, atom_count]. %%% %%% The test cases ------------------------------------------------------------- @@ -550,3 +551,13 @@ get_atom_limit(Config, AtomsMax) -> end, stop_node(Node), Res. + +%% Verify that system_info(atom_count) works. +atom_count(Config) when is_list(Config) -> + Limit = erlang:system_info(atom_limit), + Count1 = erlang:system_info(atom_count), + list_to_atom(integer_to_list(erlang:unique_integer())), + Count2 = erlang:system_info(atom_count), + true = Limit >= Count2, + true = Count2 > Count1, + ok. diff --git a/erts/etc/common/heart.c b/erts/etc/common/heart.c index d67b997d6d..bc353e384e 100644 --- a/erts/etc/common/heart.c +++ b/erts/etc/common/heart.c @@ -48,13 +48,10 @@ * * HEART_BEATING * - * This program expects a heart beat messages. If it does not receive a - * heart beat message from Erlang within heart_beat_timeout seconds, it - * reboots the system. The variable heart_beat_timeout is exported (so - * that it can be set from the shell in VxWorks, as is the variable - * heart_beat_report_delay). When using Solaris, the system is rebooted - * by executing the command stored in the environment variable - * HEART_COMMAND. + * This program expects a heart beat message. If it does not receive a + * heart beat message from Erlang within heart_beat_timeout seconds, it + * reboots the system. The system is rebooted by executing the command + * stored in the environment variable HEART_COMMAND. * * BLOCKING DESCRIPTORS * @@ -149,27 +146,17 @@ struct msg { /* Maybe interesting to change */ /* Times in seconds */ -#define HEART_BEAT_BOOT_DELAY 60 /* 1 minute */ #define SELECT_TIMEOUT 5 /* Every 5 seconds we reset the watchdog timer */ /* heart_beat_timeout is the maximum gap in seconds between two - consecutive heart beat messages from Erlang, and HEART_BEAT_BOOT_DELAY - is the the extra delay that wd_keeper allows for, to give heart a - chance to reboot in the "normal" way before the hardware watchdog - enters the scene. heart_beat_report_delay is the time allowed for reporting - before rebooting under VxWorks. */ + consecutive heart beat messages from Erlang. */ int heart_beat_timeout = 60; -int heart_beat_report_delay = 30; -int heart_beat_boot_delay = HEART_BEAT_BOOT_DELAY; /* All current platforms have a process identifier that fits in an unsigned long and where 0 is an impossible or invalid value */ unsigned long heart_beat_kill_pid = 0; -#define VW_WD_TIMEOUT (heart_beat_timeout+heart_beat_report_delay+heart_beat_boot_delay) -#define SOL_WD_TIMEOUT (heart_beat_timeout+heart_beat_boot_delay) - /* reasons for reboot */ #define R_TIMEOUT (1) #define R_CLOSED (2) @@ -297,7 +284,6 @@ free_env_val(char *value) static void get_arguments(int argc, char** argv) { int i = 1; int h; - int w; unsigned long p; while (i < argc) { @@ -313,15 +299,6 @@ static void get_arguments(int argc, char** argv) { i++; } break; - case 'w': - if (strcmp(argv[i], "-wt") == 0) - if (sscanf(argv[i+1],"%i",&w) ==1) - if ((w > 10) && (w <= 65535)) { - heart_beat_boot_delay = w; - fprintf(stderr,"heart_beat_boot_delay = %d\n",w); - i++; - } - break; case 'p': if (strcmp(argv[i], "-pid") == 0) if (sscanf(argv[i+1],"%lu",&p) ==1){ @@ -347,7 +324,7 @@ static void get_arguments(int argc, char** argv) { } i++; } - debugf("arguments -ht %d -wt %d -pid %lu\n",h,w,p); + debugf("arguments -ht %d -pid %lu\n",h,p); } int main(int argc, char **argv) { @@ -674,11 +651,6 @@ void win_system(char *command) */ static void do_terminate(int erlin_fd, int reason) { - /* - When we get here, we have HEART_BEAT_BOOT_DELAY secs to finish - (plus heart_beat_report_delay if under VxWorks), so we don't need - to call wd_reset(). - */ int ret = 0, tmo=0; char *tmo_env; diff --git a/erts/preloaded/ebin/erl_prim_loader.beam b/erts/preloaded/ebin/erl_prim_loader.beam Binary files differindex 64d1a70e61..4f4027c74e 100644 --- a/erts/preloaded/ebin/erl_prim_loader.beam +++ b/erts/preloaded/ebin/erl_prim_loader.beam diff --git a/erts/preloaded/ebin/erl_tracer.beam b/erts/preloaded/ebin/erl_tracer.beam Binary files differindex 4406a82a36..c05bc813f0 100644 --- a/erts/preloaded/ebin/erl_tracer.beam +++ b/erts/preloaded/ebin/erl_tracer.beam diff --git a/erts/preloaded/ebin/erlang.beam b/erts/preloaded/ebin/erlang.beam Binary files differindex 8247c399a4..970ad7b023 100644 --- a/erts/preloaded/ebin/erlang.beam +++ b/erts/preloaded/ebin/erlang.beam diff --git a/erts/preloaded/ebin/erts_code_purger.beam b/erts/preloaded/ebin/erts_code_purger.beam Binary files differindex 0161151785..1b28a929ce 100644 --- a/erts/preloaded/ebin/erts_code_purger.beam +++ b/erts/preloaded/ebin/erts_code_purger.beam diff --git a/erts/preloaded/ebin/erts_dirty_process_code_checker.beam b/erts/preloaded/ebin/erts_dirty_process_code_checker.beam Binary files differindex df3bc9526b..e5381d3574 100644 --- a/erts/preloaded/ebin/erts_dirty_process_code_checker.beam +++ b/erts/preloaded/ebin/erts_dirty_process_code_checker.beam diff --git a/erts/preloaded/ebin/erts_internal.beam b/erts/preloaded/ebin/erts_internal.beam Binary files differindex aae3976298..57b3023ea6 100644 --- a/erts/preloaded/ebin/erts_internal.beam +++ b/erts/preloaded/ebin/erts_internal.beam diff --git a/erts/preloaded/ebin/erts_literal_area_collector.beam b/erts/preloaded/ebin/erts_literal_area_collector.beam Binary files differindex 71f3c2ec8c..2fab34318e 100644 --- a/erts/preloaded/ebin/erts_literal_area_collector.beam +++ b/erts/preloaded/ebin/erts_literal_area_collector.beam diff --git a/erts/preloaded/ebin/init.beam b/erts/preloaded/ebin/init.beam Binary files differindex 74a0184818..ffddf2d54d 100644 --- a/erts/preloaded/ebin/init.beam +++ b/erts/preloaded/ebin/init.beam diff --git a/erts/preloaded/ebin/otp_ring0.beam b/erts/preloaded/ebin/otp_ring0.beam Binary files differindex b601c048b3..3c6a6d4f41 100644 --- a/erts/preloaded/ebin/otp_ring0.beam +++ b/erts/preloaded/ebin/otp_ring0.beam diff --git a/erts/preloaded/ebin/prim_eval.beam b/erts/preloaded/ebin/prim_eval.beam Binary files differindex 77909b01f0..133fda4b13 100644 --- a/erts/preloaded/ebin/prim_eval.beam +++ b/erts/preloaded/ebin/prim_eval.beam diff --git a/erts/preloaded/ebin/prim_file.beam b/erts/preloaded/ebin/prim_file.beam Binary files differindex 5bbbaf14d5..99ad863b8b 100644 --- a/erts/preloaded/ebin/prim_file.beam +++ b/erts/preloaded/ebin/prim_file.beam diff --git a/erts/preloaded/ebin/prim_inet.beam b/erts/preloaded/ebin/prim_inet.beam Binary files differindex 1a573ce297..e52e442f8e 100644 --- a/erts/preloaded/ebin/prim_inet.beam +++ b/erts/preloaded/ebin/prim_inet.beam diff --git a/erts/preloaded/ebin/prim_zip.beam b/erts/preloaded/ebin/prim_zip.beam Binary files differindex 6afeb454d6..122406c834 100644 --- a/erts/preloaded/ebin/prim_zip.beam +++ b/erts/preloaded/ebin/prim_zip.beam diff --git a/erts/preloaded/ebin/zlib.beam b/erts/preloaded/ebin/zlib.beam Binary files differindex 6a7ad9164f..c683d395f3 100644 --- a/erts/preloaded/ebin/zlib.beam +++ b/erts/preloaded/ebin/zlib.beam diff --git a/erts/preloaded/src/erlang.erl b/erts/preloaded/src/erlang.erl index 15c3e01653..6ca0a4c160 100644 --- a/erts/preloaded/src/erlang.erl +++ b/erts/preloaded/src/erlang.erl @@ -2532,6 +2532,7 @@ tuple_to_list(_Tuple) -> Alloc :: atom(); ({allocator_sizes, Alloc}) -> [_] when %% More or less anything Alloc :: atom(); + (atom_count) -> pos_integer(); (atom_limit) -> pos_integer(); (build_type) -> opt | debug | purify | quantify | purecov | gcov | valgrind | gprof | lcnt | frmptr; |