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-rw-r--r--erts/emulator/beam/break.c83
1 files changed, 53 insertions, 30 deletions
diff --git a/erts/emulator/beam/break.c b/erts/emulator/beam/break.c
index 76a0c5c716..d9ee940662 100644
--- a/erts/emulator/beam/break.c
+++ b/erts/emulator/beam/break.c
@@ -58,6 +58,8 @@ static void dump_attributes(fmtfn_t to, void *to_arg, byte* ptr, int size);
extern char* erts_system_version[];
+#define WRITE_BUFFER_SIZE (64*1024)
+
static void
port_info(fmtfn_t to, void *to_arg)
{
@@ -109,8 +111,8 @@ process_killer(void)
ErtsProcLocks rp_locks = ERTS_PROC_LOCKS_XSIG_SEND;
erts_aint32_t state;
erts_proc_inc_refc(rp);
- erts_smp_proc_lock(rp, rp_locks);
- state = erts_smp_atomic32_read_acqb(&rp->state);
+ erts_proc_lock(rp, rp_locks);
+ state = erts_atomic32_read_acqb(&rp->state);
if (state & (ERTS_PSFLG_FREE
| ERTS_PSFLG_EXITING
| ERTS_PSFLG_ACTIVE
@@ -132,7 +134,7 @@ process_killer(void)
NULL,
0);
}
- erts_smp_proc_unlock(rp, rp_locks);
+ erts_proc_unlock(rp, rp_locks);
erts_proc_dec_refc(rp);
}
case 'n': br = 1; break;
@@ -219,7 +221,7 @@ print_process_info(fmtfn_t to, void *to_arg, Process *p)
/* Display the state */
erts_print(to, to_arg, "State: ");
- state = erts_smp_atomic32_read_acqb(&p->state);
+ state = erts_atomic32_read_acqb(&p->state);
erts_dump_process_state(to, to_arg, state);
if (state & ERTS_PSFLG_GC) {
garbing = 1;
@@ -258,7 +260,7 @@ print_process_info(fmtfn_t to, void *to_arg, Process *p)
erts_print(to, to_arg, "Spawned by: %T\n", p->parent);
approx_started = (time_t) p->approx_started;
erts_print(to, to_arg, "Started: %s", ctime(&approx_started));
- ERTS_SMP_MSGQ_MV_INQ2PRIVQ(p);
+ ERTS_MSGQ_MV_INQ2PRIVQ(p);
erts_print(to, to_arg, "Message queue length: %d\n", p->msg.len);
/* display the message queue only if there is anything in it */
@@ -344,9 +346,7 @@ print_process_info(fmtfn_t to, void *to_arg, Process *p)
erts_program_counter_info(to, to_arg, p);
} else {
erts_print(to, to_arg, "Stack dump:\n");
-#ifdef ERTS_SMP
if (!garbing)
-#endif
erts_stack_dump(to, to_arg, p);
}
@@ -358,11 +358,9 @@ print_process_info(fmtfn_t to, void *to_arg, Process *p)
static void
print_garb_info(fmtfn_t to, void *to_arg, Process* p)
{
-#ifdef ERTS_SMP
/* ERTS_SMP: A scheduler is probably concurrently doing gc... */
if (!ERTS_IS_CRASH_DUMPING)
return;
-#endif
erts_print(to, to_arg, "New heap start: %bpX\n", p->heap);
erts_print(to, to_arg, "New heap top: %bpX\n", p->htop);
erts_print(to, to_arg, "Stack top: %bpX\n", p->stop);
@@ -512,7 +510,7 @@ do_break(void)
erts_free_read_env(mode);
#endif /* __WIN32__ */
- ASSERT(erts_smp_thr_progress_is_blocking());
+ ASSERT(erts_thr_progress_is_blocking());
erts_printf("\n"
"BREAK: (a)bort (c)ontinue (p)roc info (i)nfo (l)oaded\n"
@@ -677,18 +675,28 @@ bin_check(void)
static Sint64 crash_dump_limit = ERTS_SINT64_MAX;
static Sint64 crash_dump_written = 0;
-static int crash_dump_limited_writer(void* vfdp, char* buf, size_t len)
+typedef struct LimitedWriterInfo_ {
+ fmtfn_t to;
+ void* to_arg;
+} LimitedWriterInfo;
+
+static int
+crash_dump_limited_writer(void* vfdp, char* buf, size_t len)
{
const char stop_msg[] = "\n=abort:CRASH DUMP SIZE LIMIT REACHED\n";
+ LimitedWriterInfo* lwi = (LimitedWriterInfo *) vfdp;
crash_dump_written += len;
if (crash_dump_written <= crash_dump_limit) {
- return erts_write_fd(vfdp, buf, len);
+ return lwi->to(lwi->to_arg, buf, len);
}
len -= (crash_dump_written - crash_dump_limit);
- erts_write_fd(vfdp, buf, len);
- erts_write_fd(vfdp, (char*)stop_msg, sizeof(stop_msg)-1);
+ lwi->to(lwi->to_arg, buf, len);
+ lwi->to(lwi->to_arg, (char*)stop_msg, sizeof(stop_msg)-1);
+ if (lwi->to == &erts_write_fp) {
+ fclose((FILE *) lwi->to_arg);
+ }
/* We assume that crash dump was called from erts_exit_vv() */
erts_exit_epilogue();
@@ -698,9 +706,7 @@ static int crash_dump_limited_writer(void* vfdp, char* buf, size_t len)
void
erl_crash_dump_v(char *file, int line, char* fmt, va_list args)
{
-#ifdef ERTS_SMP
ErtsThrPrgrData tpd_buf; /* in case we aren't a managed thread... */
-#endif
int fd;
size_t envsz;
time_t now;
@@ -713,11 +719,13 @@ erl_crash_dump_v(char *file, int line, char* fmt, va_list args)
int i;
fmtfn_t to = &erts_write_fd;
void* to_arg;
+ FILE* fp = 0;
+ LimitedWriterInfo lwi;
+ static char* write_buffer; /* 'static' to avoid a leak warning in valgrind */
if (ERTS_SOMEONE_IS_CRASH_DUMPING)
return;
-#ifdef ERTS_SMP
/* Order all managed threads to block, this has to be done
first to guarantee that this is the only thread to generate
crash dump. */
@@ -741,12 +749,9 @@ erl_crash_dump_v(char *file, int line, char* fmt, va_list args)
#endif
/* Allow us to pass certain places without locking... */
- erts_smp_atomic32_set_mb(&erts_writing_erl_crash_dump, 1);
- erts_smp_tsd_set(erts_is_crash_dumping_key, (void *) 1);
+ erts_atomic32_set_mb(&erts_writing_erl_crash_dump, 1);
+ erts_tsd_set(erts_is_crash_dumping_key, (void *) 1);
-#else /* !ERTS_SMP */
- erts_writing_erl_crash_dump = 1;
-#endif /* ERTS_SMP */
envsz = sizeof(env);
/* ERL_CRASH_DUMP_SECONDS not set
@@ -820,9 +825,30 @@ erl_crash_dump_v(char *file, int line, char* fmt, va_list args)
fd = open(dumpname,O_WRONLY | O_CREAT | O_TRUNC,0640);
if (fd < 0)
return; /* Can't create the crash dump, skip it */
- to_arg = (void*)&fd;
+
+ /*
+ * Wrap into a FILE* so that we can use buffered output. Set an
+ * explicit buffer to make sure the first write does not fail because
+ * of a failure to allocate a buffer.
+ */
+ write_buffer = (char *) erts_alloc_fnf(ERTS_ALC_T_TMP, WRITE_BUFFER_SIZE);
+ if (write_buffer && (fp = fdopen(fd, "w")) != NULL) {
+ setvbuf(fp, write_buffer, _IOFBF, WRITE_BUFFER_SIZE);
+ lwi.to = &erts_write_fp;
+ lwi.to_arg = (void*)fp;
+ } else {
+ lwi.to = &erts_write_fd;
+ lwi.to_arg = (void*)&fd;
+ }
+ if (to == &crash_dump_limited_writer) {
+ to_arg = (void *) &lwi;
+ } else {
+ to = lwi.to;
+ to_arg = lwi.to_arg;
+ }
+
time(&now);
- erts_cbprintf(to, to_arg, "=erl_crash_dump:0.3\n%s", ctime(&now));
+ erts_cbprintf(to, to_arg, "=erl_crash_dump:0.4\n%s", ctime(&now));
if (file != NULL)
erts_cbprintf(to, to_arg, "The error occurred in file %s, line %d\n", file, line);
@@ -841,7 +867,6 @@ erl_crash_dump_v(char *file, int line, char* fmt, va_list args)
erts_print_nif_taints(to, to_arg);
erts_cbprintf(to, to_arg, "Atoms: %d\n", atom_table_size());
-#ifdef USE_THREADS
/* We want to note which thread it was that called erts_exit */
if (erts_get_scheduler_data()) {
erts_cbprintf(to, to_arg, "Calling Thread: scheduler:%d\n",
@@ -852,9 +877,6 @@ erl_crash_dump_v(char *file, int line, char* fmt, va_list args)
else
erts_cbprintf(to, to_arg, "Calling Thread: %p\n", erts_thr_self());
}
-#else
- erts_cbprintf(to, to_arg, "Calling Thread: scheduler:1\n");
-#endif
#if defined(ERTS_HAVE_TRY_CATCH)
@@ -873,7 +895,6 @@ erl_crash_dump_v(char *file, int line, char* fmt, va_list args)
}
#endif
-#ifdef ERTS_SMP
#ifdef ERTS_SYS_SUSPEND_SIGNAL
@@ -895,7 +916,6 @@ erl_crash_dump_v(char *file, int line, char* fmt, va_list args)
*/
erts_thr_progress_fatal_error_wait(60000);
/* Either worked or not... */
-#endif
#ifndef ERTS_HAVE_TRY_CATCH
/* This is safe to call here, as all schedulers are blocked */
@@ -932,6 +952,9 @@ erl_crash_dump_v(char *file, int line, char* fmt, va_list args)
}
erts_cbprintf(to, to_arg, "=end\n");
+ if (fp) {
+ fclose(fp);
+ }
close(fd);
erts_fprintf(stderr,"done\n");
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-20 20:34:39 +0000