diff options
Diffstat (limited to 'erts')
27 files changed, 652 insertions, 137 deletions
diff --git a/erts/doc/src/erlang.xml b/erts/doc/src/erlang.xml index c3b0bc0d74..24a091073d 100644 --- a/erts/doc/src/erlang.xml +++ b/erts/doc/src/erlang.xml @@ -6362,6 +6362,9 @@ lists:map( <p>This is the sum of the runtime for all threads in the Erlang runtime system and can therefore be greater than the wall clock time.</p> + <warning><p>This value might wrap due to limitations in the + underlying functionality provided by the operating system + that is used.</p></warning> <p>Example:</p> <pre> > <input>statistics(runtime).</input> diff --git a/erts/doc/src/notes.xml b/erts/doc/src/notes.xml index 470491a193..99736c1641 100644 --- a/erts/doc/src/notes.xml +++ b/erts/doc/src/notes.xml @@ -31,6 +31,195 @@ </header> <p>This document describes the changes made to the ERTS application.</p> +<section><title>Erts 8.3.5.2</title> + + <section><title>Fixed Bugs and Malfunctions</title> + <list> + <item> + <p> + Fix performance bug in pre-allocators that could cause + them to permanently fall back on normal more expensive + memory allocation. Pre-allocators are used for quick + allocation of short lived meta data used by messages and + other scheduled tasks. Bug exists since OTP_R15B02.</p> + <p> + Own Id: OTP-14491</p> + </item> + <item> + <p>Fixed a bug that prevented TCP sockets from being + closed properly on send timeouts.</p> + <p> + Own Id: OTP-14509</p> + </item> + <item> + <p> + Fixed bug in operator <c>bxor</c> causing erroneuos + result when one operand is a big <em>negative</em> + integer with the lowest <c>N*W</c> bits as zero and the + other operand not larger than <c>N*W</c> bits. <c>N</c> + is an integer of 1 or larger and <c>W</c> is 32 or 64 + depending on word size.</p> + <p> + Own Id: OTP-14514</p> + </item> + </list> + </section> + +</section> + +<section><title>Erts 8.3.5.1</title> + + <section><title>Fixed Bugs and Malfunctions</title> + <list> + <item> + <p> + Fixed a bug in gen_tcp:send where it never returned when + repeatedly called on a remotely closed TCP socket.</p> + <p> + Own Id: OTP-13939 Aux Id: ERL-193 </p> + </item> + <item> + <p> + Fixed segfault that could happen during cleanup of + aborted erlang:port_command/3 calls. A port_command is + aborted if the port is closed at the same time as the + port_command was issued. This bug was introduced in + erts-8.0.</p> + <p> + Own Id: OTP-14481</p> + </item> + <item> + <p> + Fixed implementation of <c>statistics(wall_clock)</c> and + <c>statistics(runtime)</c> so that values do not + unnecessarily wrap due to the emulator. Note that the + values returned by <c>statistics(runtime)</c> may still + wrap due to limitations in the underlying functionality + provided by the operating system.</p> + <p> + Own Id: OTP-14484</p> + </item> + </list> + </section> + +</section> + +<section><title>Erts 8.3.5</title> + + <section><title>Fixed Bugs and Malfunctions</title> + <list> + <item> + <p>Active-mode TCP sockets are now cleaned up properly on + send/shutdown errors.</p> + <p> + Own Id: OTP-14441 Aux Id: ERL-430 </p> + </item> + <item> + <p> + A code purge operation could under certain circumstances + expand the size of hibernated processes.</p> + <p> + Own Id: OTP-14444 Aux Id: ERIERL-24 </p> + </item> + <item> + <p> + Fix so that the ERL_ZZ_SIGTERM_KILL introduced in + erts-8.3.4 works.</p> + <p> + Own Id: OTP-14451</p> + </item> + </list> + </section> + +</section> + +<section><title>Erts 8.3.4</title> + + <section><title>Fixed Bugs and Malfunctions</title> + <list> + <item> + <p> + Add option to make SIGTERM trigger the OS default + behaviour instead of doing a gracefull shutdown. To + activate this bahviour the environment variable + ERL_ZZ_SIGTERM_KILL should be set to "true". This option + only works in OTP 19 as OTP 20 will have a different way + to deal with SIGTERM.</p> + <p> + Own Id: OTP-14418 Aux Id: ERIERL-15 </p> + </item> + </list> + </section> + +</section> + +<section><title>Erts 8.3.3</title> + + <section><title>Fixed Bugs and Malfunctions</title> + <list> + <item> + <p> + Fixed memory segment cache used for multiblock carriers. + Huge (> 2GB) memory segments could cause a VM crash. + Creation of such huge memory segments used for multiblock + carriers is however very uncommon.</p> + <p> + Own Id: OTP-14360 Aux Id: ERL-401, PR-1417 </p> + </item> + <item> + <p> + Fix release note for OTP-14290 in ERTS version 8.3.1. It + was erroneously placed under "Known Bugs and Problems".</p> + <p> + Own Id: OTP-14363 Aux Id: OTP-14290 </p> + </item> + </list> + </section> + +</section> + +<section><title>Erts 8.3.2</title> + + <section><title>Fixed Bugs and Malfunctions</title> + <list> + <item> + <p> + The <c>+Bi</c> command line argument of <c>erl</c> + erroneously caused <c>SIGTERM</c> to be ignored by the VM + as well as of all its child processes. This bug was + introduced in erts version 8.3.</p> + <p> + Own Id: OTP-14358 Aux Id: OTP-14085 </p> + </item> + </list> + </section> + +</section> + +<section><title>Erts 8.3.1</title> + + <section><title>Fixed Bugs and Malfunctions</title> + <list> + <item> + <p> + Invoking <c>init:stop/0</c> via the SIGTERM signal, in a + non-SMP BEAM, could cause BEAM to terminate with fatal + error. This has now been fixed and the BEAM will + terminate normally when SIGTERM is received.</p> + <p> + Own Id: OTP-14290</p> + </item> + <item> + <p> + Trying to open a directory with file:read_file/1 on Unix + leaked a file descriptor. This bug has now been fixed.</p> + <p> + Own Id: OTP-14308 Aux Id: ERL-383 </p> + </item> + </list> + </section> + +</section> <section><title>Erts 8.3</title> @@ -445,6 +634,22 @@ </section> +<section><title>Erts 8.1.1.1</title> + + <section><title>Fixed Bugs and Malfunctions</title> + <list> + <item> + <p> + A code purge operation could under certain circumstances + expand the size of hibernated processes.</p> + <p> + Own Id: OTP-14444 Aux Id: ERIERL-24 </p> + </item> + </list> + </section> + +</section> + <section><title>Erts 8.1.1</title> <section><title>Fixed Bugs and Malfunctions</title> diff --git a/erts/emulator/beam/beam_bif_load.c b/erts/emulator/beam/beam_bif_load.c index 27d6823d3c..b664532c1c 100644 --- a/erts/emulator/beam/beam_bif_load.c +++ b/erts/emulator/beam/beam_bif_load.c @@ -1051,23 +1051,32 @@ erts_proc_copy_literal_area(Process *c_p, int *redsp, int fcalls, int gc_allowed return am_ok; -literal_gc: +literal_gc: { + int hibernated = !!(c_p->flags & F_HIBERNATED); + int gc_cost; - if (!gc_allowed) - return am_need_gc; + if (!gc_allowed) + return am_need_gc; - if (c_p->flags & F_DISABLE_GC) - return THE_NON_VALUE; + if (c_p->flags & F_DISABLE_GC) + return THE_NON_VALUE; - FLAGS(c_p) |= F_NEED_FULLSWEEP; + FLAGS(c_p) |= F_NEED_FULLSWEEP; - *redsp += erts_garbage_collect_nobump(c_p, 0, c_p->arg_reg, c_p->arity, fcalls); + gc_cost = erts_garbage_collect_nobump(c_p, 0, c_p->arg_reg, c_p->arity, fcalls); + *redsp += gc_cost; - erts_garbage_collect_literals(c_p, (Eterm *) literals, lit_bsize, oh); + erts_garbage_collect_literals(c_p, (Eterm *) literals, lit_bsize, oh); - *redsp += lit_bsize / 64; /* Need, better value... */ + *redsp += lit_bsize / 64; /* Need, better value... */ - return am_ok; + if (hibernated) { + erts_garbage_collect_hibernate(c_p); + *redsp += gc_cost; + } + + return am_ok; + } } static Eterm @@ -1154,6 +1163,8 @@ check_process_code(Process* rp, Module* modp, Uint flags, int *redsp, int fcalls Eterm* sp; int done_gc = 0; int need_gc = 0; + int hibernated = !!(rp->flags & F_HIBERNATED); + int gc_cost = 0; ErtsMessage *msgp; ErlHeapFragment *hfrag; @@ -1288,8 +1299,13 @@ check_process_code(Process* rp, Module* modp, Uint flags, int *redsp, int fcalls while (1) { /* Check heap, stack etc... */ - if (check_mod_funs(rp, &rp->off_heap, mod_start, mod_size)) + if (check_mod_funs(rp, &rp->off_heap, mod_start, mod_size)) { + if (hibernated) { + /* GC wont help; everything on heap is live... */ + return am_true; + } goto try_gc; + } if (any_heap_ref_ptrs(&rp->fvalue, &rp->fvalue+1, literals, lit_bsize)) { rp->freason = EXC_NULL; rp->fvalue = NIL; @@ -1379,7 +1395,9 @@ check_process_code(Process* rp, Module* modp, Uint flags, int *redsp, int fcalls if (need_gc & ERTS_ORDINARY_GC__) { FLAGS(rp) |= F_NEED_FULLSWEEP; - *redsp += erts_garbage_collect_nobump(rp, 0, rp->arg_reg, rp->arity, fcalls); + gc_cost = erts_garbage_collect_nobump(rp, 0, rp->arg_reg, rp->arity, fcalls); + ASSERT(!hibernated || (need_gc & ERTS_LITERAL_GC__)); + *redsp += gc_cost; done_gc |= ERTS_ORDINARY_GC__; } if (need_gc & ERTS_LITERAL_GC__) { @@ -1388,6 +1406,10 @@ check_process_code(Process* rp, Module* modp, Uint flags, int *redsp, int fcalls *redsp += lit_bsize / 64; /* Need, better value... */ erts_garbage_collect_literals(rp, (Eterm*)literals, lit_bsize, oh); done_gc |= ERTS_LITERAL_GC__; + if (hibernated) { + erts_garbage_collect_hibernate(rp); + *redsp += gc_cost; + } } need_gc = 0; } diff --git a/erts/emulator/beam/big.c b/erts/emulator/beam/big.c index 4baee7900b..27064a4fd6 100644 --- a/erts/emulator/beam/big.c +++ b/erts/emulator/beam/big.c @@ -1293,8 +1293,11 @@ static dsize_t I_bxor(ErtsDigit* x, dsize_t xl, short xsgn, *r++ = ~c ^ *y++; x++; } - while(xl--) - *r++ = ~*x++; + while(xl--) { + DSUBb(*x,0,b,c); + *r++ = ~c; + x++; + } } else { ErtsDigit b1, b2; @@ -1312,7 +1315,9 @@ static dsize_t I_bxor(ErtsDigit* x, dsize_t xl, short xsgn, x++; y++; } while(xl--) { - *r++ = *x++; + DSUBb(*x,0,b1,c1); + *r++ = c1; + x++; } } } diff --git a/erts/emulator/beam/erl_bif_info.c b/erts/emulator/beam/erl_bif_info.c index 7bd45916f5..7791231d56 100644 --- a/erts/emulator/beam/erl_bif_info.c +++ b/erts/emulator/beam/erl_bif_info.c @@ -3468,24 +3468,32 @@ BIF_RETTYPE statistics_1(BIF_ALIST_1) res = TUPLE2(hp, b1, b2); BIF_RET(res); } else if (BIF_ARG_1 == am_runtime) { - UWord u1, u2, dummy; + ErtsMonotonicTime u1, u2; Eterm b1, b2; - elapsed_time_both(&u1,&dummy,&u2,&dummy); - b1 = erts_make_integer(u1,BIF_P); - b2 = erts_make_integer(u2,BIF_P); - hp = HAlloc(BIF_P,3); + Uint hsz; + elapsed_time_both(&u1, NULL, &u2, NULL); + hsz = 3; /* 2-tuple */ + (void) erts_bld_monotonic_time(NULL, &hsz, u1); + (void) erts_bld_monotonic_time(NULL, &hsz, u2); + hp = HAlloc(BIF_P, hsz); + b1 = erts_bld_monotonic_time(&hp, NULL, u1); + b2 = erts_bld_monotonic_time(&hp, NULL, u2); res = TUPLE2(hp, b1, b2); BIF_RET(res); } else if (BIF_ARG_1 == am_run_queue) { res = erts_run_queues_len(NULL, 1, 0); BIF_RET(make_small(res)); } else if (BIF_ARG_1 == am_wall_clock) { - UWord w1, w2; + ErtsMonotonicTime w1, w2; Eterm b1, b2; + Uint hsz; wall_clock_elapsed_time_both(&w1, &w2); - b1 = erts_make_integer((Uint) w1,BIF_P); - b2 = erts_make_integer((Uint) w2,BIF_P); - hp = HAlloc(BIF_P,3); + hsz = 3; /* 2-tuple */ + (void) erts_bld_monotonic_time(NULL, &hsz, w1); + (void) erts_bld_monotonic_time(NULL, &hsz, w2); + hp = HAlloc(BIF_P, hsz); + b1 = erts_bld_monotonic_time(&hp, NULL, w1); + b2 = erts_bld_monotonic_time(&hp, NULL, w2); res = TUPLE2(hp, b1, b2); BIF_RET(res); } else if (BIF_ARG_1 == am_io) { diff --git a/erts/emulator/beam/erl_gc.c b/erts/emulator/beam/erl_gc.c index bb36be0848..d2560cfb49 100644 --- a/erts/emulator/beam/erl_gc.c +++ b/erts/emulator/beam/erl_gc.c @@ -764,7 +764,7 @@ do_major_collection: esdp->gc_info.reclaimed += reclaimed_now; } - FLAGS(p) &= ~F_FORCE_GC; + FLAGS(p) &= ~(F_FORCE_GC|F_HIBERNATED); p->live_hf_end = ERTS_INVALID_HFRAG_PTR; ERTS_MSACC_POP_STATE_M(); @@ -929,6 +929,8 @@ erts_garbage_collect_hibernate(Process* p) ErtsGcQuickSanityCheck(p); + p->flags |= F_HIBERNATED; + erts_smp_atomic32_read_band_nob(&p->state, ~ERTS_PSFLG_GC); reds = gc_cost(actual_size, actual_size); @@ -1158,6 +1160,7 @@ erts_garbage_collect_literals(Process* p, Eterm* literals, /* * Restore status. */ + p->flags &= ~F_HIBERNATED; erts_smp_atomic32_read_band_nob(&p->state, ~ERTS_PSFLG_GC); } diff --git a/erts/emulator/beam/erl_port_task.c b/erts/emulator/beam/erl_port_task.c index 3102e44c11..2083a43f69 100644 --- a/erts/emulator/beam/erl_port_task.c +++ b/erts/emulator/beam/erl_port_task.c @@ -852,10 +852,11 @@ schedule_port_task_handle_list_free(ErtsPortTaskHandleList *pthlp) } static ERTS_INLINE void -abort_nosuspend_task(Port *pp, - ErtsPortTaskType type, - ErtsPortTaskTypeData *tdp, - int bpq_data) +abort_signal_task(Port *pp, + int abort_type, + ErtsPortTaskType type, + ErtsPortTaskTypeData *tdp, + int bpq_data) { ASSERT(type == ERTS_PORT_TASK_PROC_SIG); @@ -863,18 +864,28 @@ abort_nosuspend_task(Port *pp, if (!bpq_data) tdp->psig.callback(NULL, ERTS_PORT_SFLG_INVALID, - ERTS_PROC2PORT_SIG_ABORT_NOSUSPEND, + abort_type, &tdp->psig.data); else { ErlDrvSizeT size = erts_proc2port_sig_command_data_size(&tdp->psig.data); tdp->psig.callback(NULL, ERTS_PORT_SFLG_INVALID, - ERTS_PROC2PORT_SIG_ABORT_NOSUSPEND, + abort_type, &tdp->psig.data); aborted_proc2port_data(pp, size); } } + +static ERTS_INLINE void +abort_nosuspend_task(Port *pp, + ErtsPortTaskType type, + ErtsPortTaskTypeData *tdp, + int bpq_data) +{ + abort_signal_task(pp, ERTS_PROC2PORT_SIG_ABORT_NOSUSPEND, type, tdp, bpq_data); +} + static ErtsPortTaskHandleList * get_free_nosuspend_handles(Port *pp) { @@ -1613,8 +1624,9 @@ abort_nosuspend: ASSERT(ns_pthlp); erts_free(ERTS_ALC_T_PT_HNDL_LIST, ns_pthlp); - if (ptp) - port_task_free(ptp); + + ASSERT(ptp); + port_task_free(ptp); return 0; @@ -1625,12 +1637,15 @@ fail: erts_port_dec_refc(pp); #endif + if (ptp) { + abort_signal_task(pp, ERTS_PROC2PORT_SIG_ABORT, + ptp->type, &ptp->u.alive.td, 0); + port_task_free(ptp); + } + if (ns_pthlp) erts_free(ERTS_ALC_T_PT_HNDL_LIST, ns_pthlp); - if (ptp) - port_task_free(ptp); - return -1; } diff --git a/erts/emulator/beam/erl_process.c b/erts/emulator/beam/erl_process.c index 5c0322a7f6..54724fd62d 100644 --- a/erts/emulator/beam/erl_process.c +++ b/erts/emulator/beam/erl_process.c @@ -10476,7 +10476,8 @@ execute_sys_tasks(Process *c_p, erts_aint32_t *statep, int in_reds) reds--; } else { - if (!garbage_collected) { + if (!garbage_collected + && !(c_p->flags & F_HIBERNATED)) { FLAGS(c_p) |= F_NEED_FULLSWEEP; reds -= scheduler_gc_proc(c_p, reds); garbage_collected = 1; diff --git a/erts/emulator/beam/erl_process.h b/erts/emulator/beam/erl_process.h index 68fbb10602..b8755fe948 100644 --- a/erts/emulator/beam/erl_process.h +++ b/erts/emulator/beam/erl_process.h @@ -1395,6 +1395,7 @@ extern int erts_system_profile_ts_type; #define F_HAVE_BLCKD_NMSCHED (1 << 18) /* Process has blocked normal multi-scheduling */ #define F_HIPE_MODE (1 << 19) #define F_DELAYED_DEL_PROC (1 << 20) /* Delay delete process (dirty proc exit case) */ +#define F_HIBERNATED (1 << 21) /* Hibernated */ /* * F_DISABLE_GC and F_DELAY_GC are similar. Both will prevent diff --git a/erts/emulator/beam/erl_sched_spec_pre_alloc.c b/erts/emulator/beam/erl_sched_spec_pre_alloc.c index cab4bd73db..96238318c9 100644 --- a/erts/emulator/beam/erl_sched_spec_pre_alloc.c +++ b/erts/emulator/beam/erl_sched_spec_pre_alloc.c @@ -161,7 +161,7 @@ enqueue_remote_managed_thread(erts_sspa_chunk_header_t *chdr, if ((i & 1) == 0) itmp = itmp2; else { - enq = (erts_sspa_blk_t *) itmp; + enq = (erts_sspa_blk_t *) itmp2; itmp = erts_atomic_read_acqb(&enq->next_atmc); ASSERT(itmp != ERTS_AINT_NULL); } diff --git a/erts/emulator/beam/erl_time_sup.c b/erts/emulator/beam/erl_time_sup.c index 6aa2a7500f..1ef8c1b73a 100644 --- a/erts/emulator/beam/erl_time_sup.c +++ b/erts/emulator/beam/erl_time_sup.c @@ -1289,56 +1289,62 @@ erts_finalize_time_offset(void) /* info functions */ void -elapsed_time_both(UWord *ms_user, UWord *ms_sys, - UWord *ms_user_diff, UWord *ms_sys_diff) +elapsed_time_both(ErtsMonotonicTime *ms_user, ErtsMonotonicTime *ms_sys, + ErtsMonotonicTime *ms_user_diff, ErtsMonotonicTime *ms_sys_diff) { - UWord prev_total_user, prev_total_sys; - UWord total_user, total_sys; + ErtsMonotonicTime prev_total_user, prev_total_sys; + ErtsMonotonicTime total_user, total_sys; SysTimes now; sys_times(&now); - total_user = (now.tms_utime * 1000) / SYS_CLK_TCK; - total_sys = (now.tms_stime * 1000) / SYS_CLK_TCK; + total_user = (ErtsMonotonicTime) ((now.tms_utime * 1000) / SYS_CLK_TCK); + total_sys = (ErtsMonotonicTime) ((now.tms_stime * 1000) / SYS_CLK_TCK); if (ms_user != NULL) *ms_user = total_user; if (ms_sys != NULL) *ms_sys = total_sys; - erts_smp_mtx_lock(&erts_timeofday_mtx); + if (ms_user_diff || ms_sys_diff) { + erts_smp_mtx_lock(&erts_timeofday_mtx); - prev_total_user = (t_start.tms_utime * 1000) / SYS_CLK_TCK; - prev_total_sys = (t_start.tms_stime * 1000) / SYS_CLK_TCK; - t_start = now; + prev_total_user = (ErtsMonotonicTime) ((t_start.tms_utime * 1000) / SYS_CLK_TCK); + prev_total_sys = (ErtsMonotonicTime) ((t_start.tms_stime * 1000) / SYS_CLK_TCK); + t_start = now; - erts_smp_mtx_unlock(&erts_timeofday_mtx); + erts_smp_mtx_unlock(&erts_timeofday_mtx); - if (ms_user_diff != NULL) - *ms_user_diff = total_user - prev_total_user; + if (ms_user_diff != NULL) + *ms_user_diff = total_user - prev_total_user; - if (ms_sys_diff != NULL) - *ms_sys_diff = total_sys - prev_total_sys; + if (ms_sys_diff != NULL) + *ms_sys_diff = total_sys - prev_total_sys; + } } /* wall clock routines */ void -wall_clock_elapsed_time_both(UWord *ms_total, UWord *ms_diff) +wall_clock_elapsed_time_both(ErtsMonotonicTime *ms_total, ErtsMonotonicTime *ms_diff) { ErtsMonotonicTime now, elapsed; - erts_smp_mtx_lock(&erts_timeofday_mtx); - now = time_sup.r.o.get_time(); update_last_mtime(NULL, now); elapsed = ERTS_MONOTONIC_TO_MSEC(now); - *ms_total = (UWord) elapsed; - *ms_diff = (UWord) (elapsed - prev_wall_clock_elapsed); - prev_wall_clock_elapsed = elapsed; - erts_smp_mtx_unlock(&erts_timeofday_mtx); + *ms_total = elapsed; + + if (ms_diff) { + erts_smp_mtx_lock(&erts_timeofday_mtx); + + *ms_diff = elapsed - prev_wall_clock_elapsed; + prev_wall_clock_elapsed = elapsed; + + erts_smp_mtx_unlock(&erts_timeofday_mtx); + } } /* get current time */ diff --git a/erts/emulator/beam/erl_utils.h b/erts/emulator/beam/erl_utils.h index 81800752f0..b0912a346d 100644 --- a/erts/emulator/beam/erl_utils.h +++ b/erts/emulator/beam/erl_utils.h @@ -132,6 +132,7 @@ Eterm erts_bld_uint(Uint **hpp, Uint *szp, Uint ui); Eterm erts_bld_uword(Uint **hpp, Uint *szp, UWord uw); Eterm erts_bld_uint64(Uint **hpp, Uint *szp, Uint64 ui64); Eterm erts_bld_sint64(Uint **hpp, Uint *szp, Sint64 si64); +#define erts_bld_monotonic_time erts_bld_sint64 Eterm erts_bld_cons(Uint **hpp, Uint *szp, Eterm car, Eterm cdr); Eterm erts_bld_tuple(Uint **hpp, Uint *szp, Uint arity, ...); #define erts_bld_tuple2(H,S,E1,E2) erts_bld_tuple(H,S,2,E1,E2) diff --git a/erts/emulator/beam/io.c b/erts/emulator/beam/io.c index c3eb610fdc..caf8bfc294 100644 --- a/erts/emulator/beam/io.c +++ b/erts/emulator/beam/io.c @@ -1968,7 +1968,6 @@ int erts_port_output_async(Port *prt, Eterm from, Eterm list) { - ErtsPortOpResult res; ErtsProc2PortSigData *sigdp; erts_driver_t *drv = prt->drv_ptr; size_t size; @@ -2102,26 +2101,18 @@ erts_port_output_async(Port *prt, Eterm from, Eterm list) sigdp->u.output.size = size; port_sig_callback = port_sig_output; } - sigdp->flags = 0; ns_pthp = NULL; task_flags = 0; - res = erts_schedule_proc2port_signal(NULL, - prt, - ERTS_INVALID_PID, - NULL, - sigdp, - task_flags, - ns_pthp, - port_sig_callback); + erts_schedule_proc2port_signal(NULL, + prt, + ERTS_INVALID_PID, + NULL, + sigdp, + task_flags, + ns_pthp, + port_sig_callback); - if (res != ERTS_PORT_OP_SCHEDULED) { - if (drv->outputv) - cleanup_scheduled_outputv(evp, cbin); - else - cleanup_scheduled_output(buf); - return 1; - } return 1; bad_value: @@ -2554,10 +2545,6 @@ erts_port_output(Process *c_p, port_sig_callback); if (res != ERTS_PORT_OP_SCHEDULED) { - if (drv->outputv) - cleanup_scheduled_outputv(evp, cbin); - else - cleanup_scheduled_output(buf); return res; } @@ -2736,21 +2723,14 @@ erts_port_exit(Process *c_p, &bp->off_heap); } - res = erts_schedule_proc2port_signal(c_p, - prt, - c_p ? c_p->common.id : from, - refp, - sigdp, - 0, - NULL, - port_sig_exit); - - if (res == ERTS_PORT_OP_DROPPED) { - if (bp) - free_message_buffer(bp); - } - - return res; + return erts_schedule_proc2port_signal(c_p, + prt, + c_p ? c_p->common.id : from, + refp, + sigdp, + 0, + NULL, + port_sig_exit); } static ErtsPortOpResult @@ -4932,10 +4912,9 @@ erts_port_control(Process* c_p, 0, NULL, port_sig_control); - if (res != ERTS_PORT_OP_SCHEDULED) { - cleanup_scheduled_control(binp, bufp); + if (res != ERTS_PORT_OP_SCHEDULED) return ERTS_PORT_OP_BADARG; - } + return res; } @@ -5225,10 +5204,9 @@ erts_port_call(Process* c_p, 0, NULL, port_sig_call); - if (res != ERTS_PORT_OP_SCHEDULED) { - cleanup_scheduled_call(bufp); + if (res != ERTS_PORT_OP_SCHEDULED) return ERTS_PORT_OP_BADARG; - } + return res; } diff --git a/erts/emulator/beam/sys.h b/erts/emulator/beam/sys.h index d49edad6dc..950583bbfa 100644 --- a/erts/emulator/beam/sys.h +++ b/erts/emulator/beam/sys.h @@ -481,6 +481,12 @@ extern volatile int erts_break_requested; void erts_do_break_handling(void); #endif +#if !defined(ERTS_SMP) && !defined(__WIN32__) +extern volatile Uint erts_signal_sigterm; +#define ERTS_SIGNAL_SIGTERM erts_signal_sigterm +void erts_handle_signal_sigterm(void); +#endif + #ifdef ERTS_WANT_GOT_SIGUSR1 # ifndef UNIX # define ERTS_GOT_SIGUSR1 0 @@ -784,10 +790,10 @@ Preload* sys_preloaded(void); unsigned char* sys_preload_begin(Preload*); void sys_preload_end(Preload*); int sys_get_key(int); -void elapsed_time_both(UWord *ms_user, UWord *ms_sys, - UWord *ms_user_diff, UWord *ms_sys_diff); -void wall_clock_elapsed_time_both(UWord *ms_total, - UWord *ms_diff); +void elapsed_time_both(ErtsMonotonicTime *ms_user, ErtsMonotonicTime *ms_sys, + ErtsMonotonicTime *ms_user_diff, ErtsMonotonicTime *ms_sys_diff); +void wall_clock_elapsed_time_both(ErtsMonotonicTime *ms_total, + ErtsMonotonicTime *ms_diff); void get_time(int *hour, int *minute, int *second); void get_date(int *year, int *month, int *day); void get_localtime(int *year, int *month, int *day, diff --git a/erts/emulator/drivers/common/inet_drv.c b/erts/emulator/drivers/common/inet_drv.c index 1885338ce5..2123f00041 100644 --- a/erts/emulator/drivers/common/inet_drv.c +++ b/erts/emulator/drivers/common/inet_drv.c @@ -1256,6 +1256,8 @@ static int tcp_shutdown_error(tcp_descriptor* desc, int err); static int tcp_inet_output(tcp_descriptor* desc, HANDLE event); static int tcp_inet_input(tcp_descriptor* desc, HANDLE event); +static void tcp_desc_close(tcp_descriptor*); + #ifdef HAVE_UDP typedef struct { inet_descriptor inet; /* common data structure (DON'T MOVE) */ @@ -4320,6 +4322,12 @@ static void desc_close(inet_descriptor* desc) desc->event = INVALID_EVENT; /* closed by stop_select callback */ desc->s = INVALID_SOCKET; desc->event_mask = 0; + + /* mark as disconnected in case when socket is left lingering due to + * {exit_on_close, false} option in gen_tcp socket creation. Next + * write to socket should produce {error, enotconn} and send a + * message {tcp_error,#Port<>,econnreset} */ + desc->state &= ~INET_STATE_CONNECTED; } } @@ -9138,16 +9146,31 @@ static void tcp_inet_stop(ErlDrvData e) tcp_descriptor* desc = (tcp_descriptor*)e; DEBUGF(("tcp_inet_stop(%ld) {s=%d\r\n", (long)desc->inet.port, desc->inet.s)); + tcp_close_check(desc); - /* free input buffer & output buffer */ - if (desc->i_buf != NULL) - release_buffer(desc->i_buf); - desc->i_buf = NULL; /* net_mess2 may call this function recursively when - faulty messages arrive on dist ports*/ + tcp_clear_input(desc); + DEBUGF(("tcp_inet_stop(%ld) }\r\n", (long)desc->inet.port)); inet_stop(INETP(desc)); } +/* Closes a tcp descriptor without leaving things hanging; the VM keeps trying + * to flush IO queues as long as it contains anything even after the port has + * been closed from the erlang side, which is desired behavior (Think escripts + * writing to files) but pretty hopeless if the underlying fd has been set to + * INVALID_SOCKET through desc_close. + * + * This function should be used in place of desc_close/erl_inet_close in all + * TCP-related operations. Note that this only closes the desc cleanly; it + * will be freed through tcp_inet_stop later on. */ +static void tcp_desc_close(tcp_descriptor* desc) +{ + tcp_clear_input(desc); + tcp_clear_output(desc); + + erl_inet_close(INETP(desc)); +} + /* TCP requests from Erlang */ static ErlDrvSSizeT tcp_inet_ctl(ErlDrvData e, unsigned int cmd, char* buf, ErlDrvSizeT len, @@ -9392,7 +9415,7 @@ static ErlDrvSSizeT tcp_inet_ctl(ErlDrvData e, unsigned int cmd, case INET_REQ_CLOSE: DEBUGF(("tcp_inet_ctl(%ld): CLOSE\r\n", (long)desc->inet.port)); tcp_close_check(desc); - erl_inet_close(INETP(desc)); + tcp_desc_close(desc); return ctl_reply(INET_REP_OK, NULL, 0, rbuf, rsize); @@ -9516,7 +9539,7 @@ static void tcp_inet_timeout(ErlDrvData e) set_busy_port(desc->inet.port, 0); inet_reply_error_am(INETP(desc), am_timeout); if (desc->send_timeout_close) { - erl_inet_close(INETP(desc)); + tcp_desc_close(desc); } } else { @@ -9530,7 +9553,7 @@ static void tcp_inet_timeout(ErlDrvData e) else if ((state & INET_STATE_CONNECTING) == INET_STATE_CONNECTING) { /* assume connect timeout */ /* close the socket since it's not usable (see man pages) */ - erl_inet_close(INETP(desc)); + tcp_desc_close(desc); async_error_am(INETP(desc), am_timeout); } else if ((state & INET_STATE_ACCEPTING) == INET_STATE_ACCEPTING) { @@ -9693,8 +9716,7 @@ static int tcp_recv_closed(tcp_descriptor* desc) /* passive mode do not terminate port ! */ tcp_clear_input(desc); if (desc->inet.exitf) { - tcp_clear_output(desc); - desc_close(INETP(desc)); + tcp_desc_close(desc); } else { desc_close_read(INETP(desc)); } @@ -9737,7 +9759,7 @@ static int tcp_recv_error(tcp_descriptor* desc, int err) driver_cancel_timer(desc->inet.port); tcp_clear_input(desc); if (desc->inet.exitf) { - desc_close(INETP(desc)); + tcp_desc_close(desc); } else { desc_close_read(INETP(desc)); } @@ -10406,12 +10428,10 @@ static int tcp_send_or_shutdown_error(tcp_descriptor* desc, int err) if (desc->inet.exitf) driver_exit(desc->inet.port, 0); else - desc_close(INETP(desc)); + tcp_desc_close(desc); } else { - tcp_clear_output(desc); - tcp_clear_input(desc); tcp_close_check(desc); - erl_inet_close(INETP(desc)); + tcp_desc_close(desc); if (desc->inet.caller) { if (show_econnreset) diff --git a/erts/emulator/drivers/unix/unix_efile.c b/erts/emulator/drivers/unix/unix_efile.c index 3ff68a8859..0acc2432a7 100644 --- a/erts/emulator/drivers/unix/unix_efile.c +++ b/erts/emulator/drivers/unix/unix_efile.c @@ -430,6 +430,9 @@ efile_openfile(Efile_error* errInfo, /* Where to return error codes. */ if ( (stat("/dev/null", &nullstatbuf) < 0) || (statbuf.st_ino != nullstatbuf.st_ino) || (statbuf.st_dev != nullstatbuf.st_dev) ) { +#ifdef HAVE_FSTAT + efile_closefile(fd); +#endif errno = EISDIR; return check_error(-1, errInfo); } diff --git a/erts/emulator/sys/common/erl_check_io.c b/erts/emulator/sys/common/erl_check_io.c index 44a77f3ea5..8f2f1f9521 100644 --- a/erts/emulator/sys/common/erl_check_io.c +++ b/erts/emulator/sys/common/erl_check_io.c @@ -1617,6 +1617,11 @@ ERTS_CIO_EXPORT(erts_check_io)(int do_wait) erts_do_break_handling(); #endif +#ifdef ERTS_SIGNAL_SIGTERM + if (ERTS_SIGNAL_SIGTERM) + erts_handle_signal_sigterm(); +#endif + /* Figure out timeout value */ timeout_time = (do_wait ? erts_check_next_timeout_time(esdp) @@ -1654,6 +1659,11 @@ ERTS_CIO_EXPORT(erts_check_io)(int do_wait) erts_do_break_handling(); #endif +#ifdef ERTS_SIGNAL_SIGTERM + if (ERTS_SIGNAL_SIGTERM) + erts_handle_signal_sigterm(); +#endif + if (poll_ret != 0) { erts_smp_atomic_set_nob(&pollset.in_poll_wait, 0); forget_removed(&pollset); diff --git a/erts/emulator/sys/common/erl_mseg.c b/erts/emulator/sys/common/erl_mseg.c index 882c93a83c..968f71211c 100644 --- a/erts/emulator/sys/common/erl_mseg.c +++ b/erts/emulator/sys/common/erl_mseg.c @@ -87,6 +87,7 @@ static const int debruijn[32] = { #define CACHE_AREAS (32 - MSEG_ALIGN_BITS) +/* FIXME: segment sizes > 2 GB result in bogus negative indices */ #define SIZE_TO_CACHE_AREA_IDX(S) (LOG2((S)) - MSEG_ALIGN_BITS) #define MAX_CACHE_SIZE (30) @@ -396,6 +397,9 @@ static ERTS_INLINE int cache_bless_segment(ErtsMsegAllctr_t *ma, void *seg, UWor if (MSEG_FLG_IS_2POW(flags)) { int ix = SIZE_TO_CACHE_AREA_IDX(size); + if (ix < 0) + return 0; + ASSERT(ix < CACHE_AREAS); ASSERT((1 << (ix + MSEG_ALIGN_BITS)) == size); @@ -471,6 +475,9 @@ static ERTS_INLINE void *cache_get_segment(ErtsMsegAllctr_t *ma, UWord *size_p, ASSERT(IS_2POW(size)); + if (ix < 0) + return NULL; + for( i = ix; i < CACHE_AREAS; i++) { if (erts_circleq_is_empty(&(ma->cache_powered_node[i]))) diff --git a/erts/emulator/sys/unix/erl_unix_sys.h b/erts/emulator/sys/unix/erl_unix_sys.h index b64b0d87f6..054a4678c8 100644 --- a/erts/emulator/sys/unix/erl_unix_sys.h +++ b/erts/emulator/sys/unix/erl_unix_sys.h @@ -322,6 +322,7 @@ extern SIGFUNC sys_signal(int, SIGFUNC); extern void sys_sigrelease(int); extern void sys_sigblock(int); extern void sys_init_suspend_handler(void); +extern void erts_sys_unix_later_init(void); /* * Handling of floating point exceptions. diff --git a/erts/emulator/sys/unix/sys.c b/erts/emulator/sys/unix/sys.c index 6459fa064b..7f738751ff 100644 --- a/erts/emulator/sys/unix/sys.c +++ b/erts/emulator/sys/unix/sys.c @@ -148,11 +148,18 @@ volatile int erts_break_requested = 0; #define ERTS_SET_BREAK_REQUESTED (erts_break_requested = 1) #define ERTS_UNSET_BREAK_REQUESTED (erts_break_requested = 0) #endif + +#ifndef ERTS_SMP +volatile Uint erts_signal_sigterm = 0; +#define ERTS_SET_SIGNAL_SIGTERM (erts_signal_sigterm = 1) +#define ERTS_CLEAR_SIGNAL_SIGTERM (erts_signal_sigterm = 0) +#endif + /* set early so the break handler has access to initial mode */ static struct termios initial_tty_mode; static int replace_intr = 0; /* assume yes initially, ttsl_init will clear it */ -int using_oldshell = 1; +int using_oldshell = 1; #ifdef ERTS_ENABLE_KERNEL_POLL @@ -684,11 +691,11 @@ static RETSIGTYPE request_stop(int signum) #ifdef ERTS_SMP smp_sig_notify('S'); #else - stop_requested(); + ERTS_SET_SIGNAL_SIGTERM; + ERTS_CHK_IO_AS_INTR(); #endif } - static ERTS_INLINE void sigusr1_exit(void) { @@ -784,10 +791,14 @@ static RETSIGTYPE do_quit(int signum) /* Disable break */ void erts_set_ignore_break(void) { - sys_signal(SIGINT, SIG_IGN); - sys_signal(SIGTERM, SIG_IGN); - sys_signal(SIGQUIT, SIG_IGN); - sys_signal(SIGTSTP, SIG_IGN); + /* + * Ignore signals that can be sent to the VM by + * typing certain key combinations at the + * controlling terminal... + */ + sys_signal(SIGINT, SIG_IGN); /* Ctrl-C */ + sys_signal(SIGQUIT, SIG_IGN); /* Ctrl-\ */ + sys_signal(SIGTSTP, SIG_IGN); /* Ctrl-Z */ } /* Don't use ctrl-c for break handler but let it be @@ -811,7 +822,6 @@ void erts_replace_intr(void) { void init_break_handler(void) { sys_signal(SIGINT, request_break); - sys_signal(SIGTERM, request_stop); #ifndef ETHR_UNUSABLE_SIGUSRX sys_signal(SIGUSR1, user_signal1); #endif /* #ifndef ETHR_UNUSABLE_SIGUSRX */ @@ -825,6 +835,19 @@ void sys_init_suspend_handler(void) #endif } +void +erts_sys_unix_later_init(void) +{ + char env[5]; + size_t envsz = sizeof(env); + + if (erts_sys_getenv_raw("ERL_ZZ_SIGTERM_KILL", env, &envsz) == 0) + if (envsz == 4 && sys_strncmp("true", env, 4) == 0) + return; + + sys_signal(SIGTERM, request_stop); +} + int sys_max_files(void) { return(max_files); @@ -958,6 +981,13 @@ void erts_do_break_handling(void) erts_smp_thr_progress_unblock(); } +#ifdef ERTS_SIGNAL_SIGTERM +void erts_handle_signal_sigterm(void) { + ERTS_CLEAR_SIGNAL_SIGTERM; + stop_requested(); +} +#endif + /* Fills in the systems representation of the jam/beam process identifier. ** The Pid is put in STRING representation in the supplied buffer, ** no interpretatione of this should be done by the rest of the diff --git a/erts/emulator/sys/unix/sys_drivers.c b/erts/emulator/sys/unix/sys_drivers.c index 400f163652..93cf64719a 100644 --- a/erts/emulator/sys/unix/sys_drivers.c +++ b/erts/emulator/sys/unix/sys_drivers.c @@ -204,6 +204,7 @@ erl_sys_late_init(void) #ifdef ERTS_SMP erts_mtx_unlock(port->lock); #endif + erts_sys_unix_later_init(); /* Need to be called after forker has been started */ } /* II. Prototypes */ diff --git a/erts/emulator/test/big_SUITE.erl b/erts/emulator/test/big_SUITE.erl index 402751393a..c308760211 100644 --- a/erts/emulator/test/big_SUITE.erl +++ b/erts/emulator/test/big_SUITE.erl @@ -24,6 +24,7 @@ -export([t_div/1, eq_28/1, eq_32/1, eq_big/1, eq_math/1, big_literals/1, borders/1, negative/1, big_float_1/1, big_float_2/1, + bxor_2pow/1, shift_limit_1/1, powmod/1, system_limit/1, toobig/1, otp_6692/1]). %% Internal exports. @@ -42,6 +43,7 @@ suite() -> all() -> [t_div, eq_28, eq_32, eq_big, eq_math, big_literals, borders, negative, {group, big_float}, shift_limit_1, + bxor_2pow, powmod, system_limit, toobig, otp_6692]. groups() -> @@ -396,3 +398,54 @@ loop2(X,Y,N,M) -> end, loop2(X,Y,N+1,M). + +%% ERL-450 +bxor_2pow(_Config) -> + IL = lists:seq(8*3, 8*16, 4), + JL = lists:seq(0, 64), + [bxor_2pow_1((1 bsl I), (1 bsl J)) + || I <- IL, J <- JL], + ok. + +bxor_2pow_1(A, B) -> + for(-1,1, fun(Ad) -> + for(-1,1, fun(Bd) -> + bxor_2pow_2(A+Ad, B+Bd), + bxor_2pow_2(-A+Ad, B+Bd), + bxor_2pow_2(A+Ad, -B+Bd), + bxor_2pow_2(-A+Ad, -B+Bd) + end) + end). + +for(From, To, _Fun) when From > To -> + ok; +for(From, To, Fun) -> + Fun(From), + for(From+1, To, Fun). + +bxor_2pow_2(A, B) -> + Correct = my_bxor(A, B), + case A bxor B of + Correct -> ok; + Wrong -> + io:format("~.16b bxor ~.16b\n", [A,B]), + io:format("Expected ~.16b\n", [Correct]), + io:format("Got ~.16b\n", [Wrong]), + ct:fail({failed, 'bxor'}) + + end. + +%% Implement bxor without bxor +my_bxor(A, B) -> + my_bxor(A, B, 0, 0). + +my_bxor(0, 0, _, Acc) -> Acc; +my_bxor(-1, -1, _, Acc) -> Acc; +my_bxor(-1, 0, N, Acc) -> (-1 bsl N) bor Acc; % sign extension +my_bxor(0, -1, N, Acc) -> (-1 bsl N) bor Acc; % sign extension +my_bxor(A, B, N, Acc0) -> + Acc1 = case (A band 1) =:= (B band 1) of + true -> Acc0; + false -> Acc0 bor (1 bsl N) + end, + my_bxor(A bsr 1, B bsr 1, N+1, Acc1). diff --git a/erts/emulator/test/big_SUITE_data/borders.dat b/erts/emulator/test/big_SUITE_data/borders.dat index 52e4f35861..c38ff93383 100644 --- a/erts/emulator/test/big_SUITE_data/borders.dat +++ b/erts/emulator/test/big_SUITE_data/borders.dat @@ -1114,3 +1114,38 @@ 1 = 16#800000000000001 rem (-16#800000000000000). 0 = 16#FFFFFFFFFFFFFFF800000000 rem 16#FFFFFFFFFFFFFFF80. +% ERL-450 bxor of big negative 2-pow +-(1 bsl 8) bxor -1 = 16#ff. +-(1 bsl 16) bxor -1 = 16#ffff. +-(1 bsl 24) bxor -1 = 16#ffffff. +-(1 bsl 32) bxor -1 = 16#ffffffff. +-(1 bsl 40) bxor -1 = 16#ffffffffff. +-(1 bsl 48) bxor -1 = 16#ffffffffffff. +-(1 bsl 56) bxor -1 = 16#ffffffffffffff. +-(1 bsl 64) bxor -1 = 16#ffffffffffffffff. +-(1 bsl 72) bxor -1 = 16#ffffffffffffffffff. +-(1 bsl 80) bxor -1 = 16#ffffffffffffffffffff. +-(1 bsl 88) bxor -1 = 16#ffffffffffffffffffffff. +-(1 bsl 96) bxor -1 = 16#ffffffffffffffffffffffff. +-(1 bsl 104) bxor -1 = 16#ffffffffffffffffffffffffff. +-(1 bsl 112) bxor -1 = 16#ffffffffffffffffffffffffffff. +-(1 bsl 120) bxor -1 = 16#ffffffffffffffffffffffffffffff. +-(1 bsl 128) bxor -1 = 16#ffffffffffffffffffffffffffffffff. +-(1 bsl 136) bxor -1 = 16#ffffffffffffffffffffffffffffffffff. +-(1 bsl 8) bxor 1 = -16#ff. +-(1 bsl 16) bxor 1 = -16#ffff. +-(1 bsl 24) bxor 1 = -16#ffffff. +-(1 bsl 32) bxor 1 = -16#ffffffff. +-(1 bsl 40) bxor 1 = -16#ffffffffff. +-(1 bsl 48) bxor 1 = -16#ffffffffffff. +-(1 bsl 56) bxor 1 = -16#ffffffffffffff. +-(1 bsl 64) bxor 1 = -16#ffffffffffffffff. +-(1 bsl 72) bxor 1 = -16#ffffffffffffffffff. +-(1 bsl 80) bxor 1 = -16#ffffffffffffffffffff. +-(1 bsl 88) bxor 1 = -16#ffffffffffffffffffffff. +-(1 bsl 96) bxor 1 = -16#ffffffffffffffffffffffff. +-(1 bsl 104) bxor 1 = -16#ffffffffffffffffffffffffff. +-(1 bsl 112) bxor 1 = -16#ffffffffffffffffffffffffffff. +-(1 bsl 120) bxor 1 = -16#ffffffffffffffffffffffffffffff. +-(1 bsl 128) bxor 1 = -16#ffffffffffffffffffffffffffffffff. +-(1 bsl 136) bxor 1 = -16#ffffffffffffffffffffffffffffffffff. diff --git a/erts/emulator/test/code_SUITE.erl b/erts/emulator/test/code_SUITE.erl index 3ee14f2d1c..1065b56e19 100644 --- a/erts/emulator/test/code_SUITE.erl +++ b/erts/emulator/test/code_SUITE.erl @@ -645,9 +645,40 @@ constant_pools(Config) when is_list(Config) -> erlang:purge_module(literals), OldHeap ! done, receive - {'EXIT',OldHeap,{A,B,C,[1,2,3|_]=Seq}} when length(Seq) =:= 16 -> - ok - end. + {'EXIT',OldHeap,{A,B,C,[1,2,3|_]=Seq}} when length(Seq) =:= 16 -> + ok + end, + + {module,literals} = erlang:load_module(literals, Code), + %% Have a hibernated process that references the literals + %% in the 'literals' module. + {Hib, Mon} = spawn_monitor(fun() -> hibernated(Self) end), + receive go -> ok end, + [{heap_size,OldHeapSz}, + {total_heap_size,OldTotHeapSz}] = process_info(Hib, [heap_size, + total_heap_size]), + OldHeapSz = OldTotHeapSz, + io:format("OldHeapSz=~p OldTotHeapSz=~p~n", [OldHeapSz, OldTotHeapSz]), + true = erlang:delete_module(literals), + false = erlang:check_process_code(Hib, literals), + erlang:check_process_code(self(), literals), + erlang:purge_module(literals), + receive after 1000 -> ok end, + [{heap_size,HeapSz}, + {total_heap_size,TotHeapSz}] = process_info(Hib, [heap_size, + total_heap_size]), + io:format("HeapSz=~p TotHeapSz=~p~n", [HeapSz, TotHeapSz]), + Hib ! hej, + receive + {'DOWN', Mon, process, Hib, Reason} -> + {undef, [{no_module, + no_function, + [{A,B,C,[1,2,3|_]=Seq}], _}]} = Reason, + 16 = length(Seq) + end, + HeapSz = TotHeapSz, %% Ensure restored to hibernated state... + true = HeapSz > OldHeapSz, + ok. no_old_heap(Parent) -> A = literals:a(), @@ -670,6 +701,13 @@ old_heap(Parent) -> exit(Res) end. +hibernated(Parent) -> + A = literals:a(), + B = literals:b(), + Res = {A,B,literals:huge_bignum(),lists:seq(1, 16)}, + Parent ! go, + erlang:hibernate(no_module, no_function, [Res]). + create_old_heap() -> case process_info(self(), [heap_size,total_heap_size]) of [{heap_size,Sz},{total_heap_size,Total}] when Sz < Total -> diff --git a/erts/emulator/test/port_SUITE.erl b/erts/emulator/test/port_SUITE.erl index 23594aa8c4..3a2243f553 100644 --- a/erts/emulator/test/port_SUITE.erl +++ b/erts/emulator/test/port_SUITE.erl @@ -86,6 +86,7 @@ cd_relative/1, close_deaf_port/1, count_fds/1, + dropped_commands/1, dying_port/1, env/1, eof/1, @@ -548,6 +549,45 @@ make_dying_port(Config) when is_list(Config) -> Command = lists:concat([PortTest, " -h0 -d -q"]), open_port({spawn, Command}, [stream]). +%% Test that dropped port_commands work correctly. +%% This used to cause a segfault. +%% +%% This testcase creates a port and then lets many processes +%% do parallel commands to it. After a while it closes the +%% port and we are trying to catch the race when doing a +%% command while the port is closing. +dropped_commands(Config) -> + %% Test with output callback + dropped_commands(Config, false, {self(), {command, "1"}}), + %% Test with outputv callback + dropped_commands(Config, true, {self(), {command, "1"}}). + +dropped_commands(Config, Outputv, Cmd) -> + Path = proplists:get_value(data_dir, Config), + os:putenv("ECHO_DRV_USE_OUTPUTV", atom_to_list(Outputv)), + ok = load_driver(Path, "echo_drv"), + [dropped_commands_test(Cmd) || _ <- lists:seq(1, 100)], + timer:sleep(100), + erl_ddll:unload_driver("echo_drv"), + ok. + +dropped_commands_test(Cmd) -> + Port = erlang:open_port({spawn_driver, "echo_drv"}, [{parallelism, true}]), + spawn_monitor( + fun() -> + [spawn_link(fun() -> spin(Port, Cmd) end) || _ <- lists:seq(1,8)], + timer:sleep(5), + port_close(Port), + timer:sleep(5), + exit(nok) + end), + receive _M -> timer:sleep(5) end. + +spin(P, Cmd) -> + P ! Cmd, + spin(P, Cmd). + + %% Tests that port program with complete path (but without any %% .exe extension) can be started, even if there is a file with %% the same name but without the extension in the same directory. diff --git a/erts/emulator/test/port_SUITE_data/echo_drv.c b/erts/emulator/test/port_SUITE_data/echo_drv.c index 1d39c6a00c..b4370f6455 100644 --- a/erts/emulator/test/port_SUITE_data/echo_drv.c +++ b/erts/emulator/test/port_SUITE_data/echo_drv.c @@ -18,8 +18,11 @@ typedef struct _erl_drv_data EchoDrvData; static EchoDrvData *echo_drv_start(ErlDrvPort port, char *command); static void echo_drv_stop(EchoDrvData *data_p); -static void echo_drv_output(ErlDrvData drv_data, char *buf, - ErlDrvSizeT len); +static void echo_drv_output(ErlDrvData drv_data, char *buf, ErlDrvSizeT len); +static ErlDrvSSizeT echo_control(ErlDrvData drv_data, + unsigned int command, char *buf, + ErlDrvSizeT len, char **rbuf, ErlDrvSizeT rlen); +static void echo_outputv(ErlDrvData drv_data, ErlIOVec *ev); static void echo_drv_finish(void); static ErlDrvEntry echo_drv_entry = { @@ -32,9 +35,9 @@ static ErlDrvEntry echo_drv_entry = { "echo_drv", echo_drv_finish, NULL, /* handle */ - NULL, /* control */ + echo_control, /* control */ NULL, /* timeout */ - NULL, /* outputv */ + echo_outputv, /* outputv */ NULL, /* ready_async */ NULL, NULL, @@ -56,6 +59,14 @@ static ErlDrvEntry echo_drv_entry = { DRIVER_INIT(echo_drv) { + char buf[10]; + size_t bufsz = sizeof(buf); + char *use_outputv; + use_outputv = (erl_drv_getenv("ECHO_DRV_USE_OUTPUTV", buf, &bufsz) == 0 + ? buf + : "false"); + if (strcmp(use_outputv, "true") != 0) + echo_drv_entry.outputv = NULL; return &echo_drv_entry; } @@ -87,3 +98,15 @@ static void echo_drv_output(ErlDrvData drv_data, char *buf, ErlDrvSizeT len) { static void echo_drv_finish() { } + +static ErlDrvSSizeT echo_control(ErlDrvData drv_data, + unsigned int command, char *buf, + ErlDrvSizeT len, char **rbuf, ErlDrvSizeT rlen) +{ + return 0; +} + +static void echo_outputv(ErlDrvData drv_data, ErlIOVec *ev) +{ + return; +} diff --git a/erts/vsn.mk b/erts/vsn.mk index ab39cb45ed..3df78351d7 100644 --- a/erts/vsn.mk +++ b/erts/vsn.mk @@ -18,7 +18,7 @@ # %CopyrightEnd% # -VSN = 8.3 +VSN = 8.3.5.2 # Port number 4365 in 4.2 # Port number 4366 in 4.3 |