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Differential D28569 Diff 83631 sys/kern/subr_turnstile.c

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sys/kern/subr_turnstile.c

Show First 20 Lines • Show All 282 Lines • ▼ Show 20 Lines#ifndef SMP
KASSERT(td != curthread, ("Deadlock detected")); KASSERT(td != curthread, ("Deadlock detected"));
#endif #endif
/* /*
* If we aren't blocked on a lock, we should be. * If we aren't blocked on a lock, we should be.
*/ */
KASSERT(TD_ON_LOCK(td), ( KASSERT(TD_ON_LOCK(td), (
"thread %d(%s):%d holds %s but isn't blocked on a lock\n", "thread %d(%s):%d holds %s but isn't blocked on a lock\n",
td->td_tid, td->td_name, td->td_state, td->td_tid, td->td_name, TD_GET_STATE(td),
ts->ts_lockobj->lo_name)); ts->ts_lockobj->lo_name));
/* /*
* Pick up the lock that td is blocked on. * Pick up the lock that td is blocked on.
*/ */
ts = td->td_blocked; ts = td->td_blocked;
MPASS(ts != NULL); MPASS(ts != NULL);
THREAD_LOCKPTR_ASSERT(td, &ts->ts_lock); THREAD_LOCKPTR_ASSERT(td, &ts->ts_lock);
▲ Show 20 Lines • Show All 880 Lines • ▼ Show 20 Linesprint_lockchain(struct thread *td, const char *prefix)
*/ */
while (!db_pager_quit) { while (!db_pager_quit) {
if (td == (void *)LK_KERNPROC) { if (td == (void *)LK_KERNPROC) {
db_printf("%sdisowned (LK_KERNPROC)\n", prefix); db_printf("%sdisowned (LK_KERNPROC)\n", prefix);
return; return;
} }
db_printf("%sthread %d (pid %d, %s) is ", prefix, td->td_tid, db_printf("%sthread %d (pid %d, %s) is ", prefix, td->td_tid,
td->td_proc->p_pid, td->td_name); td->td_proc->p_pid, td->td_name);
switch (td->td_state) { switch (TD_GET_STATE(td)) {
case TDS_INACTIVE: case TDS_INACTIVE:
db_printf("inactive\n"); db_printf("inactive\n");
return; return;
case TDS_CAN_RUN: case TDS_CAN_RUN:
db_printf("runnable\n"); db_printf("runnable\n");
return; return;
case TDS_RUNQ: case TDS_RUNQ:
db_printf("on a run queue\n"); db_printf("on a run queue\n");
Show All 22 Lines case TDS_INHIBITED:
if (owner == NULL) if (owner == NULL)
return; return;
td = owner; td = owner;
break; break;
} }
db_printf("inhibited: %s\n", KTDSTATE(td)); db_printf("inhibited: %s\n", KTDSTATE(td));
return; return;
default: default:
db_printf("??? (%#x)\n", td->td_state); db_printf("??? (%#x)\n", TD_GET_STATE(td));
return; return;
} }
} }
} }
DB_SHOW_COMMAND(lockchain, db_show_lockchain) DB_SHOW_COMMAND(lockchain, db_show_lockchain)
{ {
struct thread *td; struct thread *td;
▲ Show 20 Lines • Show All 94 Lines • Show Last 20 Lines