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authorSverker Eriksson <[email protected]>2018-02-22 17:28:51 +0100
committerSverker Eriksson <[email protected]>2018-02-22 20:31:30 +0100
commit105c2f9d8e2846857b4aa37ebec70439e429c497 (patch)
treeb8a9556d9eb2088bdee3253077230794f49d99d1 /erts/emulator
parent083973ccb86d1cf826821832285f1443200f6668 (diff)
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erts,observer: Add port states and flags to crash dump
Diffstat (limited to 'erts/emulator')
-rw-r--r--erts/emulator/beam/io.c89
1 files changed, 89 insertions, 0 deletions
diff --git a/erts/emulator/beam/io.c b/erts/emulator/beam/io.c
index c6444fd440..f08fd2ac2d 100644
--- a/erts/emulator/beam/io.c
+++ b/erts/emulator/beam/io.c
@@ -5151,6 +5151,93 @@ static void prt_one_lnk(ErtsLink *lnk, void *vprtd)
erts_print(prtd->to, prtd->arg, "%T", lnk->pid);
}
+static void dump_port_state(fmtfn_t to, void *arg, erts_aint32_t state)
+{
+ erts_aint32_t rest;
+ int unknown = 0;
+ char delim = ' ';
+
+ erts_print(to, arg, "State:");
+
+ rest = state;
+ while (rest) {
+ erts_aint32_t chk = (rest ^ (rest-1)) & rest; /* lowest set bit */
+ char* s;
+
+ rest &= ~chk;
+ switch (chk) {
+ case ERTS_PORT_SFLG_CONNECTED: s = "CONNECTED"; break;
+ case ERTS_PORT_SFLG_EXITING: s = "EXITING"; break;
+ case ERTS_PORT_SFLG_DISTRIBUTION: s = "DISTR"; break;
+ case ERTS_PORT_SFLG_BINARY_IO: s = "BINARY_IO"; break;
+ case ERTS_PORT_SFLG_SOFT_EOF: s = "SOFT_EOF"; break;
+ case ERTS_PORT_SFLG_CLOSING: s = "CLOSING"; break;
+ case ERTS_PORT_SFLG_SEND_CLOSED: s = "SEND_CLOSED"; break;
+ case ERTS_PORT_SFLG_LINEBUF_IO: s = "LINEBUF_IO"; break;
+ case ERTS_PORT_SFLG_FREE: s = "FREE"; break;
+ case ERTS_PORT_SFLG_INITIALIZING: s = "INITIALIZING"; break;
+ case ERTS_PORT_SFLG_PORT_SPECIFIC_LOCK: s = "PORT_LOCK"; break;
+ case ERTS_PORT_SFLG_INVALID: s = "INVALID"; break;
+ case ERTS_PORT_SFLG_HALT: s = "HALT"; break;
+#ifdef DEBUG
+ case ERTS_PORT_SFLG_PORT_DEBUG: s = "DEBUG"; break;
+#endif
+ default:
+ unknown = 1;
+ continue;
+ }
+ erts_print(to, arg, "%c%s", delim, s);
+ delim = '|';
+ }
+ if (unknown || !state)
+ erts_print(to, arg, "%c0x%x\n", delim, state);
+ else
+ erts_print(to, arg, "\n");
+}
+
+static void dump_port_task_flags(fmtfn_t to, void *arg, Port* p)
+{
+ erts_aint32_t flags = erts_smp_atomic32_read_nob(&p->sched.flags);
+ erts_aint32_t unknown = 0;
+ char delim = ' ';
+
+ if (!flags)
+ return;
+
+ erts_print(to, arg, "Task Flags:");
+
+ while (flags) {
+ erts_aint32_t chk = (flags ^ (flags-1)) & flags; /* lowest set bit */
+ char* s;
+
+ flags &= ~chk;
+ switch (chk) {
+ case ERTS_PTS_FLG_IN_RUNQ: s = "IN_RUNQ"; break;
+ case ERTS_PTS_FLG_EXEC: s = "EXEC"; break;
+ case ERTS_PTS_FLG_HAVE_TASKS: s = "HAVE_TASKS"; break;
+ case ERTS_PTS_FLG_EXIT: s = "EXIT"; break;
+ case ERTS_PTS_FLG_BUSY_PORT: s = "BUSY_PORT"; break;
+ case ERTS_PTS_FLG_BUSY_PORT_Q: s = "BUSY_Q"; break;
+ case ERTS_PTS_FLG_CHK_UNSET_BUSY_PORT_Q: s = "CHK_UNSET_BUSY_Q"; break;
+ case ERTS_PTS_FLG_HAVE_BUSY_TASKS: s = "BUSY_TASKS"; break;
+ case ERTS_PTS_FLG_HAVE_NS_TASKS: s = "NS_TASKS"; break;
+ case ERTS_PTS_FLG_PARALLELISM: s = "PARALLELISM"; break;
+ case ERTS_PTS_FLG_FORCE_SCHED: s = "FORCE_SCHED"; break;
+ case ERTS_PTS_FLG_EXITING: s = "EXITING"; break;
+ case ERTS_PTS_FLG_EXEC_IMM: s = "EXEC_IMM"; break;
+ default:
+ unknown |= chk;
+ continue;
+ }
+ erts_print(to, arg, "%c%s", delim, s);
+ delim = '|';
+ }
+ if (unknown)
+ erts_print(to, arg, "%cUNKNOWN(0x%x)\n", delim, unknown);
+ else
+ erts_print(to, arg, "\n");
+}
+
void
print_port_info(Port *p, fmtfn_t to, void *arg)
{
@@ -5160,6 +5247,8 @@ print_port_info(Port *p, fmtfn_t to, void *arg)
return;
erts_print(to, arg, "=port:%T\n", p->common.id);
+ dump_port_state(to, arg, state);
+ dump_port_task_flags(to, arg, p);
erts_print(to, arg, "Slot: %d\n", internal_port_index(p->common.id));
if (state & ERTS_PORT_SFLG_CONNECTED) {
erts_print(to, arg, "Connected: %T", ERTS_PORT_GET_CONNECTED(p));