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-rw-r--r--erts/emulator/beam/break.c144
1 files changed, 106 insertions, 38 deletions
diff --git a/erts/emulator/beam/break.c b/erts/emulator/beam/break.c
index 2cddfe2800..3cb605834f 100644
--- a/erts/emulator/beam/break.c
+++ b/erts/emulator/beam/break.c
@@ -36,7 +36,7 @@
#include "atom.h"
#include "beam_load.h"
#include "erl_instrument.h"
-#include "erl_bif_timer.h"
+#include "erl_hl_timer.h"
#include "erl_thr_progress.h"
/* Forward declarations -- should really appear somewhere else */
@@ -108,7 +108,7 @@ process_killer(void)
case 'k': {
ErtsProcLocks rp_locks = ERTS_PROC_LOCKS_XSIG_SEND;
erts_aint32_t state;
- erts_smp_proc_inc_refc(rp);
+ erts_proc_inc_refc(rp);
erts_smp_proc_lock(rp, rp_locks);
state = erts_smp_atomic32_read_acqb(&rp->state);
if (state & (ERTS_PSFLG_FREE
@@ -131,7 +131,7 @@ process_killer(void)
0);
}
erts_smp_proc_unlock(rp, rp_locks);
- erts_smp_proc_dec_refc(rp);
+ erts_proc_dec_refc(rp);
}
case 'n': br = 1; break;
case 'r': return;
@@ -209,25 +209,12 @@ print_process_info(int to, void *to_arg, Process *p)
erts_print(to, to_arg, "State: ");
state = erts_smp_atomic32_read_acqb(&p->state);
- if (state & ERTS_PSFLG_FREE)
- erts_print(to, to_arg, "Non Existing\n"); /* Should never happen */
- else if (state & ERTS_PSFLG_EXITING)
- erts_print(to, to_arg, "Exiting\n");
- else if (state & ERTS_PSFLG_GC) {
- garbing = 1;
- running = 1;
- erts_print(to, to_arg, "Garbing\n");
- }
- else if (state & ERTS_PSFLG_SUSPENDED)
- erts_print(to, to_arg, "Suspended\n");
- else if (state & ERTS_PSFLG_RUNNING) {
- running = 1;
- erts_print(to, to_arg, "Running\n");
- }
- else if (state & ERTS_PSFLG_ACTIVE)
- erts_print(to, to_arg, "Scheduled\n");
- else
- erts_print(to, to_arg, "Waiting\n");
+ erts_dump_process_state(to, to_arg, state);
+ if (state & ERTS_PSFLG_GC) {
+ garbing = 1;
+ running = 1;
+ } else if (state & ERTS_PSFLG_RUNNING)
+ running = 1;
/*
* If the process is registered as a global process, display the
@@ -240,9 +227,9 @@ print_process_info(int to, void *to_arg, Process *p)
* Display the initial function name
*/
erts_print(to, to_arg, "Spawned as: %T:%T/%bpu\n",
- p->initial[INITIAL_MOD],
- p->initial[INITIAL_FUN],
- p->initial[INITIAL_ARI]);
+ p->u.initial[INITIAL_MOD],
+ p->u.initial[INITIAL_FUN],
+ p->u.initial[INITIAL_ARI]);
if (p->current != NULL) {
if (running) {
@@ -255,7 +242,6 @@ print_process_info(int to, void *to_arg, Process *p)
p->current[1],
p->current[2]);
}
- erts_print(to, to_arg, "Run queue: %d\n", erts_get_runq_proc(p)->ix);
erts_print(to, to_arg, "Spawned by: %T\n", p->parent);
approx_started = (time_t) p->approx_started;
@@ -351,6 +337,10 @@ print_process_info(int to, void *to_arg, Process *p)
#endif
erts_stack_dump(to, to_arg, p);
}
+
+ /* Display all states */
+ erts_print(to, to_arg, "Internal State: ");
+ erts_dump_extended_process_state(to, to_arg, state);
}
static void
@@ -680,27 +670,39 @@ erl_crash_dump_v(char *file, int line, char* fmt, va_list args)
char* dumpname;
int secs;
int env_erl_crash_dump_seconds_set = 1;
+ int i;
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. */
+ erts_thr_progress_fatal_error_block(&tpd_buf);
+
+#ifdef ERTS_THR_HAVE_SIG_FUNCS
/*
- * Wait for all managed threads to block. If all threads haven't blocked
- * after a minute, we go anyway and hope for the best...
- *
- * We do not release system again. We expect an exit() or abort() after
- * dump has been written.
+ * We suspend all scheduler threads so that we can dump some
+ * data about the currently running processes and scheduler data.
+ * We have to be very very careful when doing this as the schedulers
+ * could be anywhere.
*/
- erts_thr_progress_fatal_error_block(60000, &tpd_buf);
- /* Either worked or not... */
+ for (i = 0; i < erts_no_schedulers; i++) {
+ erts_tid_t tid = ERTS_SCHEDULER_IX(i)->tid;
+ if (!erts_equal_tids(tid,erts_thr_self()))
+ sys_thr_suspend(tid);
+ }
+
+#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);
-#else
+
+#else /* !ERTS_SMP */
erts_writing_erl_crash_dump = 1;
-#endif
+#endif /* ERTS_SMP */
envsz = sizeof(env);
/* ERL_CRASH_DUMP_SECONDS not set
@@ -753,11 +755,12 @@ erl_crash_dump_v(char *file, int line, char* fmt, va_list args)
dumpname = "erl_crash.dump";
else
dumpname = &dumpnamebuf[0];
+
+ erts_fprintf(stderr,"\nCrash dump is being written to: %s...", dumpname);
fd = open(dumpname,O_WRONLY | O_CREAT | O_TRUNC,0640);
- if (fd < 0)
+ if (fd < 0)
return; /* Can't create the crash dump, skip it */
-
time(&now);
erts_fdprintf(fd, "=erl_crash_dump:0.3\n%s", ctime(&now));
@@ -771,9 +774,74 @@ erl_crash_dump_v(char *file, int line, char* fmt, va_list args)
erts_fdprintf(fd, "System version: ");
erts_print_system_version(fd, NULL, NULL);
erts_fdprintf(fd, "%s\n", "Compiled: " ERLANG_COMPILE_DATE);
+
erts_fdprintf(fd, "Taints: ");
erts_print_nif_taints(fd, NULL);
erts_fdprintf(fd, "Atoms: %d\n", atom_table_size());
+
+#ifdef USE_THREADS
+ /* We want to note which thread it was that called erl_exit */
+ if (erts_get_scheduler_data()) {
+ erts_fdprintf(fd, "Calling Thread: scheduler:%d\n",
+ erts_get_scheduler_data()->no);
+ } else {
+ if (!erts_thr_getname(erts_thr_self(), dumpnamebuf, MAXPATHLEN))
+ erts_fdprintf(fd, "Calling Thread: %s\n", dumpnamebuf);
+ else
+ erts_fdprintf(fd, "Calling Thread: %p\n", erts_thr_self());
+ }
+#else
+ erts_fdprintf(fd, "Calling Thread: scheduler:1\n");
+#endif
+
+#if defined(ERTS_HAVE_TRY_CATCH)
+
+ /*
+ * erts_print_scheduler_info is not guaranteed to be safe to call
+ * here for all schedulers as we may have suspended a scheduler
+ * in the middle of updating the STACK_TOP and STACK_START
+ * variables and thus when scanning the stack we could get
+ * segmentation faults. We protect against this very unlikely
+ * scenario by using the ERTS_SYS_TRY_CATCH.
+ */
+ for (i = 0; i < erts_no_schedulers; i++) {
+ ERTS_SYS_TRY_CATCH(
+ erts_print_scheduler_info(fd, NULL, ERTS_SCHEDULER_IX(i)),
+ erts_fdprintf(fd, "** crashed **\n"));
+ }
+#endif
+
+#ifdef ERTS_SMP
+
+#if defined(ERTS_THR_HAVE_SIG_FUNCS)
+
+ /* We resume all schedulers so that we are in a known safe state
+ when we write the rest of the crash dump */
+ for (i = 0; i < erts_no_schedulers; i++) {
+ erts_tid_t tid = ERTS_SCHEDULER_IX(i)->tid;
+ if (!erts_equal_tids(tid,erts_thr_self()))
+ sys_thr_resume(tid);
+ }
+#endif
+
+ /*
+ * Wait for all managed threads to block. If all threads haven't blocked
+ * after a minute, we go anyway and hope for the best...
+ *
+ * We do not release system again. We expect an exit() or abort() after
+ * dump has been written.
+ */
+ 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 */
+ for (i = 0; i < erts_no_schedulers; i++) {
+ erts_print_scheduler_info(fd, NULL, ERTS_SCHEDULER_IX(i));
+ }
+#endif
+
info(fd, NULL); /* General system info */
if (erts_ptab_initialized(&erts_proc))
process_info(fd, NULL); /* Info about each process and port */
@@ -803,7 +871,7 @@ erl_crash_dump_v(char *file, int line, char* fmt, va_list args)
erts_fdprintf(fd, "=end\n");
close(fd);
- erts_fprintf(stderr,"\nCrash dump was written to: %s\n", dumpname);
+ erts_fprintf(stderr,"done\n");
}
void
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-11 11:42:00 +0000