aboutsummaryrefslogtreecommitdiffstats
path: root/erts/emulator/beam
diff options
context:
space:
mode:
Diffstat (limited to 'erts/emulator/beam')
-rw-r--r--erts/emulator/beam/atom.names2
-rw-r--r--erts/emulator/beam/beam_emu.c39
-rw-r--r--erts/emulator/beam/bif.c52
-rw-r--r--erts/emulator/beam/erl_bif_info.c49
-rw-r--r--erts/emulator/beam/erl_gc.c244
-rw-r--r--erts/emulator/beam/erl_gc.h4
-rw-r--r--erts/emulator/beam/erl_init.c54
-rw-r--r--erts/emulator/beam/erl_process.c7
-rw-r--r--erts/emulator/beam/erl_process.h12
-rw-r--r--erts/emulator/beam/erl_trace.c21
-rw-r--r--erts/emulator/beam/erl_trace.h2
-rw-r--r--erts/emulator/beam/erl_vm.h3
12 files changed, 451 insertions, 38 deletions
diff --git a/erts/emulator/beam/atom.names b/erts/emulator/beam/atom.names
index 3022c0a99a..8f65e71531 100644
--- a/erts/emulator/beam/atom.names
+++ b/erts/emulator/beam/atom.names
@@ -275,6 +275,7 @@ atom garbage_collection_info
atom gc_end
atom gc_major_end
atom gc_major_start
+atom gc_max_heap_size
atom gc_minor_end
atom gc_minor_start
atom gc_start
@@ -366,6 +367,7 @@ atom match_spec
atom match_spec_result
atom max
atom maximum
+atom max_heap_size
atom max_tables max_processes
atom mbuf_size
atom md5
diff --git a/erts/emulator/beam/beam_emu.c b/erts/emulator/beam/beam_emu.c
index 9402317185..f8f2e29c95 100644
--- a/erts/emulator/beam/beam_emu.c
+++ b/erts/emulator/beam/beam_emu.c
@@ -1707,6 +1707,14 @@ void process_main(void)
BeamInstr *next;
Eterm result;
+ if (!(FCALLS > 0 || FCALLS > neg_o_reds)) {
+ /* If we have run out of reductions, we do a context
+ switch before calling the bif */
+ c_p->arity = 2;
+ c_p->current = NULL;
+ goto context_switch3;
+ }
+
PRE_BIF_SWAPOUT(c_p);
c_p->fcalls = FCALLS - 1;
result = erl_send(c_p, r(0), x(1));
@@ -2813,6 +2821,15 @@ do { \
BeamInstr *next;
ErlHeapFragment *live_hf_end;
+
+ if (!((FCALLS - 1) > 0 || (FCALLS-1) > neg_o_reds)) {
+ /* If we have run out of reductions, we do a context
+ switch before calling the bif */
+ c_p->arity = ((Export *)Arg(0))->code[2];
+ c_p->current = ((Export *)Arg(0))->code;
+ goto context_switch3;
+ }
+
if (ERTS_MSACC_IS_ENABLED_CACHED_X()) {
if (GET_BIF_MODULE(Arg(0)) == am_ets) {
ERTS_MSACC_SET_STATE_CACHED_M_X(ERTS_MSACC_STATE_ETS);
@@ -3341,10 +3358,19 @@ do { \
context_switch2: /* Entry for fun calls. */
c_p->current = I-3; /* Pointer to Mod, Func, Arity */
+ context_switch3:
+
{
Eterm* argp;
int i;
+ if (erts_smp_atomic32_read_nob(&c_p->state) & ERTS_PSFLG_EXITING) {
+ c_p->i = beam_exit;
+ c_p->arity = 0;
+ c_p->current = NULL;
+ goto do_schedule;
+ }
+
/*
* Make sure that there is enough room for the argument registers to be saved.
*/
@@ -3512,6 +3538,12 @@ do { \
BifFunction vbf;
ErlHeapFragment *live_hf_end;
+ if (!((FCALLS - 1) > 0 || (FCALLS - 1) > neg_o_reds)) {
+ /* If we have run out of reductions, we do a context
+ switch before calling the nif */
+ goto context_switch;
+ }
+
ERTS_MSACC_SET_STATE_CACHED_M_X(ERTS_MSACC_STATE_NIF);
DTRACE_NIF_ENTRY(c_p, (Eterm)I[-3], (Eterm)I[-2], (Uint)I[-1]);
@@ -3563,6 +3595,13 @@ do { \
* code[3]: &&apply_bif
* code[4]: Function pointer to BIF function
*/
+
+ if (!((FCALLS - 1) > 0 || (FCALLS - 1) > neg_o_reds)) {
+ /* If we have run out of reductions, we do a context
+ switch before calling the bif */
+ goto context_switch;
+ }
+
if (ERTS_MSACC_IS_ENABLED_CACHED_X()) {
if ((Eterm)I[-3] == am_ets) {
ERTS_MSACC_SET_STATE_CACHED_M_X(ERTS_MSACC_STATE_ETS);
diff --git a/erts/emulator/beam/bif.c b/erts/emulator/beam/bif.c
index 4516d53284..2a3bd4afe5 100644
--- a/erts/emulator/beam/bif.c
+++ b/erts/emulator/beam/bif.c
@@ -44,6 +44,7 @@
#include "erl_ptab.h"
#include "erl_bits.h"
#include "erl_bif_unique.h"
+#include "erl_map.h"
#include "erl_msacc.h"
Export *erts_await_result;
@@ -880,6 +881,8 @@ BIF_RETTYPE spawn_opt_1(BIF_ALIST_1)
so.flags = erts_default_spo_flags|SPO_USE_ARGS;
so.min_heap_size = H_MIN_SIZE;
so.min_vheap_size = BIN_VH_MIN_SIZE;
+ so.max_heap_size = H_MAX_SIZE;
+ so.max_heap_flags = H_MAX_FLAGS;
so.priority = PRIORITY_NORMAL;
so.max_gen_gcs = (Uint16) erts_smp_atomic32_read_nob(&erts_max_gen_gcs);
so.scheduler = 0;
@@ -937,6 +940,9 @@ BIF_RETTYPE spawn_opt_1(BIF_ALIST_1)
} else {
so.min_heap_size = erts_next_heap_size(min_heap_size, 0);
}
+ } else if (arg == am_max_heap_size) {
+ if (!erts_max_heap_size(val, &so.max_heap_size, &so.max_heap_flags))
+ goto error;
} else if (arg == am_min_bin_vheap_size && is_small(val)) {
Sint min_vheap_size = signed_val(val);
if (min_vheap_size < 0) {
@@ -970,6 +976,10 @@ BIF_RETTYPE spawn_opt_1(BIF_ALIST_1)
goto error;
}
+ if (so.max_heap_size != 0 && so.max_heap_size < so.min_heap_size) {
+ goto error;
+ }
+
/*
* Spawn the process.
*/
@@ -1731,6 +1741,23 @@ BIF_RETTYPE process_flag_2(BIF_ALIST_2)
}
BIF_RET(old_value);
}
+ else if (BIF_ARG_1 == am_max_heap_size) {
+ Eterm *hp;
+ Uint sz = 0, max_heap_size, max_heap_flags;
+
+ if (!erts_max_heap_size(BIF_ARG_2, &max_heap_size, &max_heap_flags))
+ goto error;
+
+ if ((max_heap_size < MIN_HEAP_SIZE(BIF_P) && max_heap_size != 0))
+ goto error;
+
+ erts_max_heap_size_map(MAX_HEAP_SIZE_GET(BIF_P), MAX_HEAP_SIZE_FLAGS_GET(BIF_P), NULL, &sz);
+ hp = HAlloc(BIF_P, sz);
+ old_value = erts_max_heap_size_map(MAX_HEAP_SIZE_GET(BIF_P), MAX_HEAP_SIZE_FLAGS_GET(BIF_P), &hp, NULL);
+ MAX_HEAP_SIZE_SET(BIF_P, max_heap_size);
+ MAX_HEAP_SIZE_FLAGS_SET(BIF_P, max_heap_flags);
+ BIF_RET(old_value);
+ }
else if (BIF_ARG_1 == am_message_queue_data) {
old_value = erts_change_message_queue_management(BIF_P, BIF_ARG_2);
if (is_non_value(old_value))
@@ -4370,6 +4397,31 @@ BIF_RETTYPE system_flag_2(BIF_ALIST_2)
erts_smp_proc_lock(BIF_P, ERTS_PROC_LOCK_MAIN);
BIF_RET(make_small(oval));
+ } else if (BIF_ARG_1 == am_max_heap_size) {
+
+ Eterm *hp, old_value;
+ Uint sz = 0, max_heap_size, max_heap_flags;
+
+ if (!erts_max_heap_size(BIF_ARG_2, &max_heap_size, &max_heap_flags))
+ goto error;
+
+ if (max_heap_size < H_MIN_SIZE && max_heap_size != 0)
+ goto error;
+
+ erts_max_heap_size_map(H_MAX_SIZE, H_MAX_FLAGS, NULL, &sz);
+ hp = HAlloc(BIF_P, sz);
+ old_value = erts_max_heap_size_map(H_MAX_SIZE, H_MAX_FLAGS, &hp, NULL);
+
+ erts_smp_proc_unlock(BIF_P, ERTS_PROC_LOCK_MAIN);
+ erts_smp_thr_progress_block();
+
+ H_MAX_SIZE = max_heap_size;
+ H_MAX_FLAGS = max_heap_flags;
+
+ erts_smp_thr_progress_unblock();
+ erts_smp_proc_lock(BIF_P, ERTS_PROC_LOCK_MAIN);
+
+ BIF_RET(old_value);
} else if (BIF_ARG_1 == am_display_items) {
int oval = display_items;
if (!is_small(BIF_ARG_2) || (n = signed_val(BIF_ARG_2)) < 0) {
diff --git a/erts/emulator/beam/erl_bif_info.c b/erts/emulator/beam/erl_bif_info.c
index b12301812a..2e195db0ee 100644
--- a/erts/emulator/beam/erl_bif_info.c
+++ b/erts/emulator/beam/erl_bif_info.c
@@ -45,6 +45,7 @@
#include "erl_async.h"
#include "erl_thr_progress.h"
#include "erl_bif_unique.h"
+#include "erl_map.h"
#define ERTS_PTAB_WANT_DEBUG_FUNCS__
#include "erl_ptab.h"
#ifdef HIPE
@@ -594,6 +595,7 @@ static Eterm pi_args[] = {
am_suspending,
am_min_heap_size,
am_min_bin_vheap_size,
+ am_max_heap_size,
am_current_location,
am_current_stacktrace,
am_message_queue_data,
@@ -643,10 +645,11 @@ pi_arg2ix(Eterm arg)
case am_suspending: return 26;
case am_min_heap_size: return 27;
case am_min_bin_vheap_size: return 28;
- case am_current_location: return 29;
- case am_current_stacktrace: return 30;
- case am_message_queue_data: return 31;
- case am_garbage_collection_info: return 32;
+ case am_max_heap_size: return 29;
+ case am_current_location: return 30;
+ case am_current_stacktrace: return 31;
+ case am_message_queue_data: return 32;
+ case am_garbage_collection_info: return 33;
default: return -1;
}
}
@@ -1348,6 +1351,18 @@ process_info_aux(Process *BIF_P,
break;
}
+ case am_max_heap_size: {
+ Uint hsz = 3;
+ (void) erts_max_heap_size_map(MAX_HEAP_SIZE_GET(rp),
+ MAX_HEAP_SIZE_FLAGS_GET(rp),
+ NULL, &hsz);
+ hp = HAlloc(BIF_P, hsz);
+ res = erts_max_heap_size_map(MAX_HEAP_SIZE_GET(rp),
+ MAX_HEAP_SIZE_FLAGS_GET(rp),
+ &hp, NULL);
+ break;
+ }
+
case am_total_heap_size: {
ErtsMessage *mp;
Uint total_heap_size;
@@ -1391,8 +1406,12 @@ process_info_aux(Process *BIF_P,
case am_garbage_collection: {
DECL_AM(minor_gcs);
Eterm t;
+ Uint map_sz = 0;
+
+ erts_max_heap_size_map(MAX_HEAP_SIZE_GET(rp), MAX_HEAP_SIZE_FLAGS_GET(rp), NULL, &map_sz);
- hp = HAlloc(BIF_P, 3+2 + 3+2 + 3+2 + 3+2 + 3); /* last "3" is for outside tuple */
+ hp = HAlloc(BIF_P, 3+2 + 3+2 + 3+2 + 3+2 + 3+2 + map_sz + 3);
+ /* last "3" is for outside tuple */
t = TUPLE2(hp, AM_minor_gcs, make_small(GEN_GCS(rp))); hp += 3;
res = CONS(hp, t, NIL); hp += 2;
@@ -1403,6 +1422,11 @@ process_info_aux(Process *BIF_P,
res = CONS(hp, t, res); hp += 2;
t = TUPLE2(hp, am_min_bin_vheap_size, make_small(MIN_VHEAP_SIZE(rp))); hp += 3;
res = CONS(hp, t, res); hp += 2;
+
+ t = erts_max_heap_size_map(MAX_HEAP_SIZE_GET(rp), MAX_HEAP_SIZE_FLAGS_GET(rp), &hp, NULL);
+
+ t = TUPLE2(hp, am_max_heap_size, t); hp += 3;
+ res = CONS(hp, t, res); hp += 2;
break;
}
@@ -1412,12 +1436,12 @@ process_info_aux(Process *BIF_P,
if (rp == BIF_P) {
sz += ERTS_PROCESS_GC_INFO_MAX_SIZE;
} else {
- erts_process_gc_info(rp, &sz, NULL);
+ erts_process_gc_info(rp, &sz, NULL, 0, 0);
sz += 3;
}
hp = HAlloc(BIF_P, sz);
- res = erts_process_gc_info(rp, &actual_sz, &hp);
+ res = erts_process_gc_info(rp, &actual_sz, &hp, 0, 0);
/* We may have some extra space, fill with 0 tuples */
if (actual_sz <= sz - 3) {
@@ -2169,7 +2193,7 @@ BIF_RETTYPE system_info_1(BIF_ALIST_1)
} else if (BIF_ARG_1 == am_garbage_collection){
Uint val = (Uint) erts_smp_atomic32_read_nob(&erts_max_gen_gcs);
Eterm tup;
- hp = HAlloc(BIF_P, 3+2 + 3+2 + 3+2);
+ hp = HAlloc(BIF_P, 3+2 + 3+2 + 3+2 + 3+2);
tup = TUPLE2(hp, am_fullsweep_after, make_small(val)); hp += 3;
res = CONS(hp, tup, NIL); hp += 2;
@@ -2180,6 +2204,9 @@ BIF_RETTYPE system_info_1(BIF_ALIST_1)
tup = TUPLE2(hp, am_min_bin_vheap_size, make_small(BIN_VH_MIN_SIZE)); hp += 3;
res = CONS(hp, tup, res); hp += 2;
+ tup = TUPLE2(hp, am_max_heap_size, make_small(H_MAX_SIZE)); hp += 3;
+ res = CONS(hp, tup, res); hp += 2;
+
BIF_RET(res);
} else if (BIF_ARG_1 == am_fullsweep_after){
Uint val = (Uint) erts_smp_atomic32_read_nob(&erts_max_gen_gcs);
@@ -2190,6 +2217,12 @@ BIF_RETTYPE system_info_1(BIF_ALIST_1)
hp = HAlloc(BIF_P, 3);
res = TUPLE2(hp, am_min_heap_size,make_small(H_MIN_SIZE));
BIF_RET(res);
+ } else if (BIF_ARG_1 == am_max_heap_size) {
+ Uint sz = 0;
+ erts_max_heap_size_map(H_MAX_SIZE, H_MAX_FLAGS, NULL, &sz);
+ hp = HAlloc(BIF_P, sz);
+ res = erts_max_heap_size_map(H_MAX_SIZE, H_MAX_FLAGS, &hp, NULL);
+ BIF_RET(res);
} else if (BIF_ARG_1 == am_min_bin_vheap_size) {
hp = HAlloc(BIF_P, 3);
res = TUPLE2(hp, am_min_bin_vheap_size,make_small(BIN_VH_MIN_SIZE));
diff --git a/erts/emulator/beam/erl_gc.c b/erts/emulator/beam/erl_gc.c
index 201a5acaef..d740b2baec 100644
--- a/erts/emulator/beam/erl_gc.c
+++ b/erts/emulator/beam/erl_gc.c
@@ -41,6 +41,7 @@
#endif
#include "dtrace-wrapper.h"
#include "erl_bif_unique.h"
+#include "dist.h"
#define ERTS_INACT_WR_PB_LEAVE_MUCH_LIMIT 1
#define ERTS_INACT_WR_PB_LEAVE_MUCH_PERCENTAGE 20
@@ -146,7 +147,8 @@ static void offset_rootset(Process *p, Sint offs, char* area, Uint area_size,
static void offset_off_heap(Process* p, Sint offs, char* area, Uint area_size);
static void offset_mqueue(Process *p, Sint offs, char* area, Uint area_size);
static void move_msgq_to_heap(Process *p);
-
+static int reached_max_heap_size(Process *p, Uint total_heap_size,
+ Uint extra_heap_size, Uint extra_old_heap_size);
static void init_gc_info(ErtsGCInfo *gcip);
#ifdef HARDDEBUG
@@ -578,9 +580,11 @@ garbage_collect(Process* p, ErlHeapFragment *live_hf_end,
int need, Eterm* objv, int nobj, int fcalls)
{
Uint reclaimed_now = 0;
+ Eterm gc_trace_end_tag;
int reds;
ErtsMonotonicTime start_time = 0; /* Shut up faulty warning... */
ErtsSchedulerData *esdp;
+ erts_aint32_t state;
ERTS_MSACC_PUSH_STATE_M();
#ifdef USE_VM_PROBES
DTRACE_CHARBUF(pidbuf, DTRACE_TERM_BUF_SIZE);
@@ -589,7 +593,9 @@ garbage_collect(Process* p, ErlHeapFragment *live_hf_end,
ASSERT(CONTEXT_REDS - ERTS_REDS_LEFT(p, fcalls)
>= erts_proc_sched_data(p)->virtual_reds);
- if (p->flags & (F_DISABLE_GC|F_DELAY_GC))
+ state = erts_smp_atomic32_read_nob(&p->state);
+
+ if (p->flags & (F_DISABLE_GC|F_DELAY_GC) || state & ERTS_PSFLG_EXITING)
return delay_garbage_collection(p, live_hf_end, need, fcalls);
if (p->abandoned_heap)
@@ -624,28 +630,28 @@ garbage_collect(Process* p, ErlHeapFragment *live_hf_end,
if (GEN_GCS(p) < MAX_GEN_GCS(p) && !(FLAGS(p) & F_NEED_FULLSWEEP)) {
if (IS_TRACED_FL(p, F_TRACE_GC)) {
- trace_gc(p, am_gc_minor_start, need);
+ trace_gc(p, am_gc_minor_start, need, THE_NON_VALUE);
}
DTRACE2(gc_minor_start, pidbuf, need);
reds = minor_collection(p, live_hf_end, need, objv, nobj, &reclaimed_now);
DTRACE2(gc_minor_end, pidbuf, reclaimed_now);
- if (IS_TRACED_FL(p, F_TRACE_GC)) {
- trace_gc(p, am_gc_minor_end, reclaimed_now);
- }
- if (reds < 0)
+ if (reds == -1) {
+ if (IS_TRACED_FL(p, F_TRACE_GC)) {
+ trace_gc(p, am_gc_minor_end, reclaimed_now, THE_NON_VALUE);
+ }
goto do_major_collection;
+ }
+ gc_trace_end_tag = am_gc_minor_end;
} else {
do_major_collection:
ERTS_MSACC_SET_STATE_CACHED_M_X(ERTS_MSACC_STATE_GC_FULL);
if (IS_TRACED_FL(p, F_TRACE_GC)) {
- trace_gc(p, am_gc_major_start, need);
+ trace_gc(p, am_gc_major_start, need, THE_NON_VALUE);
}
DTRACE2(gc_major_start, pidbuf, need);
reds = major_collection(p, live_hf_end, need, objv, nobj, &reclaimed_now);
DTRACE2(gc_major_end, pidbuf, reclaimed_now);
- if (IS_TRACED_FL(p, F_TRACE_GC)) {
- trace_gc(p, am_gc_major_end, reclaimed_now);
- }
+ gc_trace_end_tag = am_gc_major_end;
ERTS_MSACC_SET_STATE_CACHED_M_X(ERTS_MSACC_STATE_GC);
}
@@ -659,8 +665,33 @@ do_major_collection:
ErtsGcQuickSanityCheck(p);
+ /* Max heap size has been reached and the process was configured
+ to be killed, so we kill it and set it in a delayed garbage
+ collecting state. There should be no gc_end trace or
+ long_gc/large_gc triggers when this happens as process was
+ killed before a GC could be done. */
+ if (reds == -2) {
+ ErtsProcLocks locks = ERTS_PROC_LOCKS_ALL;
+
+ erts_smp_proc_lock(p, ERTS_PROC_LOCKS_ALL_MINOR);
+ erts_send_exit_signal(p, p->common.id, p, &locks,
+ am_kill, NIL, NULL, 0);
+ erts_smp_proc_unlock(p, locks & ERTS_PROC_LOCKS_ALL_MINOR);
+
+ /* erts_send_exit_signal looks for ERTS_PSFLG_GC, so
+ we have to remove it after the signal is sent */
+ erts_smp_atomic32_read_band_nob(&p->state, ~ERTS_PSFLG_GC);
+
+ /* We have to make sure that we have space for need on the heap */
+ return delay_garbage_collection(p, live_hf_end, need, fcalls);
+ }
+
erts_smp_atomic32_read_band_nob(&p->state, ~ERTS_PSFLG_GC);
+ if (IS_TRACED_FL(p, F_TRACE_GC)) {
+ trace_gc(p, gc_trace_end_tag, reclaimed_now, THE_NON_VALUE);
+ }
+
if (erts_system_monitor_long_gc != 0) {
ErtsMonotonicTime end_time;
Uint gc_time;
@@ -762,6 +793,7 @@ erts_garbage_collect_hibernate(Process* p)
heap_size = p->heap_sz + (p->old_htop - p->old_heap) + p->mbuf_sz;
+
heap = (Eterm*) ERTS_HEAP_ALLOC(ERTS_ALC_T_TMP_HEAP,
sizeof(Eterm)*heap_size);
htop = heap;
@@ -1032,6 +1064,34 @@ minor_collection(Process* p, ErlHeapFragment *live_hf_end,
Uint size_before = young_gen_usage(p);
/*
+ * Check if we have gone past the max heap size limit
+ */
+
+ if (MAX_HEAP_SIZE_GET(p)) {
+ Uint heap_size = size_before,
+ /* Note that we also count the un-allocated area
+ in between the stack and heap */
+ stack_size = HEAP_END(p) - HEAP_TOP(p),
+ extra_heap_size,
+ extra_old_heap_size = 0;
+
+ /* Add potential old heap size */
+ if (OLD_HEAP(p) == NULL && mature_size != 0) {
+ extra_old_heap_size = erts_next_heap_size(size_before, 1);
+ heap_size += extra_old_heap_size;
+ } else if (OLD_HEAP(p))
+ heap_size += OLD_HEND(p) - OLD_HEAP(p);
+
+ /* Add potential new young heap size */
+ extra_heap_size = next_heap_size(p, stack_size + size_before, 0);
+ heap_size += extra_heap_size;
+
+ if (heap_size > MAX_HEAP_SIZE_GET(p))
+ if (reached_max_heap_size(p, heap_size, extra_heap_size, extra_old_heap_size))
+ return -2;
+ }
+
+ /*
* Allocate an old heap if we don't have one and if we'll need one.
*/
@@ -1140,6 +1200,16 @@ minor_collection(Process* p, ErlHeapFragment *live_hf_end,
ASSERT(HEAP_SIZE(p) == next_heap_size(p, HEAP_SIZE(p), 0));
ASSERT(MBUF(p) == NULL);
+ /* The heap usage during GC should be larger than what we end up
+ after a GC, even if we grow it. If this assertion is not true
+ we have to check size in grow_new_heap and potentially kill the
+ process from there */
+ ASSERT(!MAX_HEAP_SIZE_GET(p) ||
+ !(MAX_HEAP_SIZE_FLAGS_GET(p) & MAX_HEAP_SIZE_KILL) ||
+ MAX_HEAP_SIZE_GET(p) > (young_gen_usage(p) +
+ (OLD_HEND(p) - OLD_HEAP(p)) +
+ (HEAP_END(p) - HEAP_TOP(p))));
+
return gc_cost(size_after, adjust_size);
}
@@ -1458,6 +1528,25 @@ major_collection(Process* p, ErlHeapFragment *live_hf_end,
if (new_sz == HEAP_SIZE(p) && FLAGS(p) & F_HEAP_GROW) {
new_sz = next_heap_size(p, HEAP_SIZE(p), 1);
}
+
+
+ if (MAX_HEAP_SIZE_GET(p)) {
+ Uint heap_size = size_before;
+
+ /* Add unused space in old heap */
+ heap_size += OLD_HEND(p) - OLD_HTOP(p);
+
+ /* Add stack + unused space in young heap */
+ heap_size += HEAP_END(p) - HEAP_TOP(p);
+
+ /* Add size of new young heap */
+ heap_size += new_sz;
+
+ if (MAX_HEAP_SIZE_GET(p) < heap_size)
+ if (reached_max_heap_size(p, heap_size, new_sz, 0))
+ return -2;
+ }
+
FLAGS(p) &= ~(F_HEAP_GROW|F_NEED_FULLSWEEP);
n_htop = n_heap = (Eterm *) ERTS_HEAP_ALLOC(ERTS_ALC_T_HEAP,
sizeof(Eterm)*new_sz);
@@ -2987,7 +3076,9 @@ erts_gc_info_request(Process *c_p)
}
Eterm
-erts_process_gc_info(Process *p, Uint *sizep, Eterm **hpp)
+erts_process_gc_info(Process *p, Uint *sizep, Eterm **hpp,
+ Uint extra_heap_block,
+ Uint extra_old_heap_block_size)
{
ERTS_DECL_AM(bin_vheap_size);
ERTS_DECL_AM(bin_vheap_block_size);
@@ -3010,8 +3101,9 @@ erts_process_gc_info(Process *p, Uint *sizep, Eterm **hpp)
AM_bin_old_vheap_block_size
};
UWord values[] = {
- OLD_HEAP(p) ? OLD_HEND(p) - OLD_HEAP(p) : 0,
- HEAP_SIZE(p),
+ OLD_HEAP(p) ? OLD_HEND(p) - OLD_HEAP(p) + extra_old_heap_block_size
+ : extra_old_heap_block_size,
+ HEAP_SIZE(p) + extra_heap_block,
MBUF_SIZE(p),
HIGH_WATER(p) - HEAP_START(p),
STACK_START(p) - p->stop,
@@ -3057,6 +3149,130 @@ erts_process_gc_info(Process *p, Uint *sizep, Eterm **hpp)
return res;
}
+static int
+reached_max_heap_size(Process *p, Uint total_heap_size,
+ Uint extra_heap_size, Uint extra_old_heap_size)
+{
+ Uint max_heap_flags = MAX_HEAP_SIZE_FLAGS_GET(p);
+ if (IS_TRACED_FL(p, F_TRACE_GC) ||
+ max_heap_flags & MAX_HEAP_SIZE_LOG) {
+ Eterm msg;
+ Uint size = 0;
+ Eterm *o_hp , *hp;
+ erts_process_gc_info(p, &size, NULL, extra_heap_size,
+ extra_old_heap_size);
+ o_hp = hp = erts_alloc(ERTS_ALC_T_TMP, size * sizeof(Eterm));
+ msg = erts_process_gc_info(p, NULL, &hp, extra_heap_size,
+ extra_old_heap_size);
+
+ if (max_heap_flags & MAX_HEAP_SIZE_LOG) {
+ int alive = erts_is_alive;
+ erts_dsprintf_buf_t *dsbufp = erts_create_logger_dsbuf();
+ Eterm *o_hp, *hp, args = NIL;
+
+ /* Build the format message */
+ erts_dsprintf(dsbufp, " Process: ~p ");
+ if (alive)
+ erts_dsprintf(dsbufp, "on node ~p");
+ erts_dsprintf(dsbufp, "~n Context: maximum heap size reached~n");
+ erts_dsprintf(dsbufp, " Max Heap Size: ~p~n");
+ erts_dsprintf(dsbufp, " Total Heap Size: ~p~n");
+ erts_dsprintf(dsbufp, " Kill: ~p~n");
+ erts_dsprintf(dsbufp, " Error Logger: ~p~n");
+ erts_dsprintf(dsbufp, " GC Info: ~p~n");
+
+ /* Build the args in reverse order */
+ o_hp = hp = erts_alloc(ERTS_ALC_T_TMP, 2*(alive ? 7 : 6) * sizeof(Eterm));
+ args = CONS(hp, msg, args); hp += 2;
+ args = CONS(hp, am_true, args); hp += 2;
+ args = CONS(hp, (max_heap_flags & MAX_HEAP_SIZE_KILL ? am_true : am_false), args); hp += 2;
+ args = CONS(hp, make_small(total_heap_size), args); hp += 2;
+ args = CONS(hp, make_small(MAX_HEAP_SIZE_GET(p)), args); hp += 2;
+ if (alive) {
+ args = CONS(hp, erts_this_node->sysname, args); hp += 2;
+ }
+ args = CONS(hp, p->common.id, args); hp += 2;
+
+ erts_send_error_term_to_logger(p->group_leader, dsbufp, args);
+ erts_free(ERTS_ALC_T_TMP, o_hp);
+ }
+
+ if (IS_TRACED_FL(p, F_TRACE_GC))
+ trace_gc(p, am_gc_max_heap_size, 0, msg);
+
+ erts_free(ERTS_ALC_T_TMP, o_hp);
+ }
+ /* returns true if we should kill the process */
+ return max_heap_flags & MAX_HEAP_SIZE_KILL;
+}
+
+Eterm
+erts_max_heap_size_map(Sint max_heap_size, Uint max_heap_flags,
+ Eterm **hpp, Uint *sz)
+{
+ if (!hpp) {
+ *sz += (2*3 + 1 + MAP_HEADER_FLATMAP_SZ);
+ return THE_NON_VALUE;
+ } else {
+ Eterm *hp = *hpp;
+ Eterm keys = TUPLE3(hp, am_error_logger, am_kill, am_size);
+ flatmap_t *mp;
+ hp += 4;
+ mp = (flatmap_t*) hp;
+ mp->thing_word = MAP_HEADER_FLATMAP;
+ mp->size = 3;
+ mp->keys = keys;
+ hp += MAP_HEADER_FLATMAP_SZ;
+ *hp++ = max_heap_flags & MAX_HEAP_SIZE_LOG ? am_true : am_false;
+ *hp++ = max_heap_flags & MAX_HEAP_SIZE_KILL ? am_true : am_false;
+ *hp++ = make_small(max_heap_size);
+ *hpp = hp;
+ return make_flatmap(mp);
+ }
+}
+
+int
+erts_max_heap_size(Eterm arg, Uint *max_heap_size, Uint *max_heap_flags)
+{
+ Sint sz;
+ *max_heap_flags = H_MAX_FLAGS;
+ if (is_small(arg)) {
+ sz = signed_val(arg);
+ *max_heap_flags = H_MAX_FLAGS;
+ } else if (is_map(arg)) {
+ const Eterm *size = erts_maps_get(am_size, arg);
+ const Eterm *kill = erts_maps_get(am_kill, arg);
+ const Eterm *log = erts_maps_get(am_error_logger, arg);
+ if (size && is_small(*size)) {
+ sz = signed_val(*size);
+ } else {
+ /* size is mandatory */
+ return 0;
+ }
+ if (kill) {
+ if (*kill == am_true)
+ *max_heap_flags |= MAX_HEAP_SIZE_KILL;
+ else if (*kill == am_false)
+ *max_heap_flags &= ~MAX_HEAP_SIZE_KILL;
+ else
+ return 0;
+ }
+ if (log) {
+ if (*log == am_true)
+ *max_heap_flags |= MAX_HEAP_SIZE_LOG;
+ else if (*log == am_false)
+ *max_heap_flags &= ~MAX_HEAP_SIZE_LOG;
+ else
+ return 0;
+ }
+ } else
+ return 0;
+ if (sz < 0)
+ return 0;
+ *max_heap_size = sz;
+ return 1;
+}
+
#if defined(DEBUG) || defined(ERTS_OFFHEAP_DEBUG)
static int
diff --git a/erts/emulator/beam/erl_gc.h b/erts/emulator/beam/erl_gc.h
index 8a6ff99990..54ea9ca3c0 100644
--- a/erts/emulator/beam/erl_gc.h
+++ b/erts/emulator/beam/erl_gc.h
@@ -135,7 +135,7 @@ typedef struct {
#define ERTS_PROCESS_GC_INFO_MAX_TERMS (11) /* number of elements in process_gc_info*/
#define ERTS_PROCESS_GC_INFO_MAX_SIZE \
(ERTS_PROCESS_GC_INFO_MAX_TERMS * (2/*cons*/ + 3/*2-tuple*/ + BIG_UINT_HEAP_SIZE))
-Eterm erts_process_gc_info(struct process*, Uint *, Eterm **);
+Eterm erts_process_gc_info(struct process*, Uint *, Eterm **, Uint, Uint);
void erts_gc_info(ErtsGCInfo *gcip);
void erts_init_gc(void);
@@ -155,5 +155,7 @@ void erts_offset_off_heap(struct erl_off_heap*, Sint, Eterm*, Eterm*);
void erts_offset_heap_ptr(Eterm*, Uint, Sint, Eterm*, Eterm*);
void erts_offset_heap(Eterm*, Uint, Sint, Eterm*, Eterm*);
void erts_free_heap_frags(struct process* p);
+Eterm erts_max_heap_size_map(Sint, Uint, Eterm **, Uint *);
+int erts_max_heap_size(Eterm, Uint *, Uint *);
#endif /* __ERL_GC_H__ */
diff --git a/erts/emulator/beam/erl_init.c b/erts/emulator/beam/erl_init.c
index fcd2739ac3..0649fb68de 100644
--- a/erts/emulator/beam/erl_init.c
+++ b/erts/emulator/beam/erl_init.c
@@ -164,6 +164,8 @@ int erts_use_sender_punish;
Uint display_items; /* no of items to display in traces etc */
int H_MIN_SIZE; /* The minimum heap grain */
int BIN_VH_MIN_SIZE; /* The minimum binary virtual*/
+int H_MAX_SIZE; /* The maximum heap size */
+int H_MAX_FLAGS; /* The maximum heap flags */
Uint32 erts_debug_flags; /* Debug flags. */
int erts_backtrace_depth; /* How many functions to show in a backtrace
@@ -576,6 +578,10 @@ void erts_usage(void)
H_DEFAULT_SIZE);
erts_fprintf(stderr, "-hmbs size set minimum binary virtual heap size in words (default %d)\n",
VH_DEFAULT_SIZE);
+ erts_fprintf(stderr, "-hmax size set maximum heap size in words (default %d)\n",
+ H_DEFAULT_MAX_SIZE);
+ erts_fprintf(stderr, "-hmaxk bool enable or disable kill at max heap size (default true)\n");
+ erts_fprintf(stderr, "-hmaxel bool enable or disable error_logger report at max heap size (default true)\n");
erts_fprintf(stderr, "-hpds size initial process dictionary size (default %d)\n",
erts_pd_initial_size);
erts_fprintf(stderr, "-hmqd val set default message queue data flag for processes,\n");
@@ -759,6 +765,8 @@ early_init(int *argc, char **argv) /*
erts_async_thread_suggested_stack_size = ERTS_ASYNC_THREAD_MIN_STACK_SIZE;
H_MIN_SIZE = H_DEFAULT_SIZE;
BIN_VH_MIN_SIZE = VH_DEFAULT_SIZE;
+ H_MAX_SIZE = H_DEFAULT_MAX_SIZE;
+ H_MAX_FLAGS = MAX_HEAP_SIZE_KILL|MAX_HEAP_SIZE_LOG;
erts_initialized = 0;
@@ -1484,10 +1492,13 @@ erl_start(int argc, char **argv)
char *sub_param = argv[i]+2;
/* set default heap size
*
- * h|ms - min_heap_size
- * h|mbs - min_bin_vheap_size
- * h|pds - erts_pd_initial_size
- * h|mqd - message_queue_data
+ * h|ms - min_heap_size
+ * h|mbs - min_bin_vheap_size
+ * h|pds - erts_pd_initial_size
+ * h|mqd - message_queue_data
+ * h|max - max_heap_size
+ * h|maxk - max_heap_kill
+ * h|maxel - max_heap_error_logger
*
*/
if (has_prefix("mbs", sub_param)) {
@@ -1530,6 +1541,41 @@ erl_start(int argc, char **argv)
"Invalid message_queue_data flag: %s\n", arg);
erts_usage();
}
+ } else if (has_prefix("maxk", sub_param)) {
+ arg = get_arg(sub_param+4, argv[i+1], &i);
+ if (strcmp(arg,"true") == 0) {
+ H_MAX_FLAGS |= MAX_HEAP_SIZE_KILL;
+ } else if (strcmp(arg,"false") == 0) {
+ H_MAX_FLAGS &= ~MAX_HEAP_SIZE_KILL;
+ } else {
+ erts_fprintf(stderr, "bad max heap kill %s\n", arg);
+ erts_usage();
+ }
+ VERBOSE(DEBUG_SYSTEM, ("using max heap kill %d\n", H_MAX_FLAGS));
+ } else if (has_prefix("maxel", sub_param)) {
+ arg = get_arg(sub_param+5, argv[i+1], &i);
+ if (strcmp(arg,"true") == 0) {
+ H_MAX_FLAGS |= MAX_HEAP_SIZE_LOG;
+ } else if (strcmp(arg,"false") == 0) {
+ H_MAX_FLAGS &= ~MAX_HEAP_SIZE_LOG;
+ } else {
+ erts_fprintf(stderr, "bad max heap error logger %s\n", arg);
+ erts_usage();
+ }
+ VERBOSE(DEBUG_SYSTEM, ("using max heap log %d\n", H_MAX_FLAGS));
+ } else if (has_prefix("max", sub_param)) {
+ arg = get_arg(sub_param+3, argv[i+1], &i);
+ if ((H_MAX_SIZE = atoi(arg)) < 0) {
+ erts_fprintf(stderr, "bad max heap size %s\n", arg);
+ erts_usage();
+ }
+ if (H_MAX_SIZE < H_MIN_SIZE && H_MAX_SIZE) {
+ erts_fprintf(stderr, "max heap size (%s) is not allowed to be "
+ "smaller than min heap size (%d)\n",
+ arg, H_MIN_SIZE);
+ erts_usage();
+ }
+ VERBOSE(DEBUG_SYSTEM, ("using max heap size %d\n", H_MAX_SIZE));
} else {
/* backward compatibility */
arg = get_arg(argv[i]+2, argv[i+1], &i);
diff --git a/erts/emulator/beam/erl_process.c b/erts/emulator/beam/erl_process.c
index 9d895f1867..a853ec585b 100644
--- a/erts/emulator/beam/erl_process.c
+++ b/erts/emulator/beam/erl_process.c
@@ -11241,9 +11241,13 @@ erl_create_process(Process* parent, /* Parent of process (default group leader).
p->min_heap_size = so->min_heap_size;
p->min_vheap_size = so->min_vheap_size;
p->max_gen_gcs = so->max_gen_gcs;
+ MAX_HEAP_SIZE_SET(p, so->max_heap_size);
+ MAX_HEAP_SIZE_FLAGS_SET(p, so->max_heap_flags);
} else {
p->min_heap_size = H_MIN_SIZE;
p->min_vheap_size = BIN_VH_MIN_SIZE;
+ MAX_HEAP_SIZE_SET(p, H_MAX_SIZE);
+ MAX_HEAP_SIZE_FLAGS_SET(p, H_MAX_FLAGS);
p->max_gen_gcs = (Uint16) erts_smp_atomic32_read_nob(&erts_max_gen_gcs);
}
p->schedule_count = 0;
@@ -11838,7 +11842,8 @@ set_proc_exiting(Process *p,
p->i = (BeamInstr *) beam_exit;
#ifndef ERTS_SMP
- if (state & (ERTS_PSFLG_RUNNING|ERTS_PSFLG_RUNNING_SYS)) {
+ if (state & (ERTS_PSFLG_RUNNING|ERTS_PSFLG_RUNNING_SYS)
+ && !(state & ERTS_PSFLG_GC)) {
/*
* I non smp case:
*
diff --git a/erts/emulator/beam/erl_process.h b/erts/emulator/beam/erl_process.h
index 6de6b4f499..2801947613 100644
--- a/erts/emulator/beam/erl_process.h
+++ b/erts/emulator/beam/erl_process.h
@@ -934,6 +934,15 @@ struct ErtsPendingSuspend_ {
# define BIN_OLD_VHEAP_SZ(p) (p)->bin_old_vheap_sz
# define BIN_OLD_VHEAP(p) (p)->bin_old_vheap
+# define MAX_HEAP_SIZE_GET(p) ((p)->max_heap_size >> 2)
+# define MAX_HEAP_SIZE_SET(p, sz) ((p)->max_heap_size = ((sz) << 2) | \
+ MAX_HEAP_SIZE_FLAGS_GET(p))
+# define MAX_HEAP_SIZE_FLAGS_GET(p) ((p)->max_heap_size & 0x3)
+# define MAX_HEAP_SIZE_FLAGS_SET(p, flags) ((p)->max_heap_size = flags | \
+ ((p)->max_heap_size & ~0x3))
+# define MAX_HEAP_SIZE_KILL 1
+# define MAX_HEAP_SIZE_LOG 2
+
struct process {
ErtsPTabElementCommon common; /* *Need* to be first in struct */
@@ -951,6 +960,7 @@ struct process {
Uint heap_sz; /* Size of heap in words */
Uint min_heap_size; /* Minimum size of heap (in words). */
Uint min_vheap_size; /* Minimum size of virtual heap (in words). */
+ Uint max_heap_size; /* Maximum size of heap (in words). */
#if !defined(NO_FPE_SIGNALS) || defined(HIPE)
volatile unsigned long fp_exception;
@@ -1310,6 +1320,8 @@ typedef struct {
Uint min_vheap_size; /* Minimum virtual heap size */
int priority; /* Priority for process. */
Uint16 max_gen_gcs; /* Maximum number of gen GCs before fullsweep. */
+ Uint max_heap_size; /* Maximum heap size in words */
+ Uint max_heap_flags; /* Maximum heap flags (kill | log) */
int scheduler;
} ErlSpawnOpts;
diff --git a/erts/emulator/beam/erl_trace.c b/erts/emulator/beam/erl_trace.c
index 447b46d239..ca001fc156 100644
--- a/erts/emulator/beam/erl_trace.c
+++ b/erts/emulator/beam/erl_trace.c
@@ -1419,25 +1419,28 @@ void save_calls(Process *p, Export *e)
* are all small (atomic) integers.
*/
void
-trace_gc(Process *p, Eterm what, Uint size)
+trace_gc(Process *p, Eterm what, Uint size, Eterm msg)
{
ErtsTracerNif *tnif = NULL;
Eterm* hp;
- Eterm msg = NIL;
Uint sz = 0;
Eterm tup;
- if (is_tracer_enabled(p, ERTS_PROC_LOCK_MAIN, &p->common, &tnif, TRACE_FUN_E_GC, what)) {
+ if (is_tracer_enabled(p, ERTS_PROC_LOCK_MAIN, &p->common, &tnif,
+ TRACE_FUN_E_GC, what)) {
+
+ if (is_non_value(msg)) {
- (void) erts_process_gc_info(p, &sz, NULL);
- hp = HAlloc(p, sz + 3 + 2);
+ (void) erts_process_gc_info(p, &sz, NULL, 0, 0);
+ hp = HAlloc(p, sz + 3 + 2);
- msg = erts_process_gc_info(p, NULL, &hp);
- tup = TUPLE2(hp, am_wordsize, make_small(size)); hp += 3;
- msg = CONS(hp, tup, msg); hp += 2;
+ msg = erts_process_gc_info(p, NULL, &hp, 0, 0);
+ tup = TUPLE2(hp, am_wordsize, make_small(size)); hp += 3;
+ msg = CONS(hp, tup, msg); hp += 2;
+ }
send_to_tracer_nif(p, &p->common, p->common.id, tnif, TRACE_FUN_T_GC,
- what, msg, am_undefined, am_true);
+ what, msg, THE_NON_VALUE, am_true);
}
}
diff --git a/erts/emulator/beam/erl_trace.h b/erts/emulator/beam/erl_trace.h
index 0a0c5fc913..0095d4386b 100644
--- a/erts/emulator/beam/erl_trace.h
+++ b/erts/emulator/beam/erl_trace.h
@@ -112,7 +112,7 @@ void trace_sched(Process*, ErtsProcLocks, Eterm);
void trace_proc(Process*, ErtsProcLocks, Process*, Eterm, Eterm);
void trace_proc_spawn(Process*, Eterm what, Eterm pid, Eterm mod, Eterm func, Eterm args);
void save_calls(Process *p, Export *);
-void trace_gc(Process *p, Eterm what, Uint size);
+void trace_gc(Process *p, Eterm what, Uint size, Eterm msg);
/* port tracing */
void trace_virtual_sched(Process*, ErtsProcLocks, Eterm);
void trace_sched_ports(Port *pp, Eterm);
diff --git a/erts/emulator/beam/erl_vm.h b/erts/emulator/beam/erl_vm.h
index f3c54de214..f97716d030 100644
--- a/erts/emulator/beam/erl_vm.h
+++ b/erts/emulator/beam/erl_vm.h
@@ -50,6 +50,7 @@
#define H_DEFAULT_SIZE 233 /* default (heap + stack) min size */
#define VH_DEFAULT_SIZE 32768 /* default virtual (bin) heap min size (words) */
+#define H_DEFAULT_MAX_SIZE 0 /* default max heap size is off */
#define CP_SIZE 1
@@ -160,6 +161,8 @@ extern int num_instructions; /* Number of instruction in opc[]. */
extern int H_MIN_SIZE; /* minimum (heap + stack) */
extern int BIN_VH_MIN_SIZE; /* minimum virtual (bin) heap */
+extern int H_MAX_SIZE; /* maximum (heap + stack) */
+extern int H_MAX_FLAGS; /* maximum heap flags */
extern int erts_atom_table_size;/* Atom table size */
extern int erts_pd_initial_size;/* Initial Process dictionary table size */
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-01 18:06:21 +0000