diff options
Diffstat (limited to 'sys/kern/kern_lock.c')
| -rw-r--r-- | sys/kern/kern_lock.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/sys/kern/kern_lock.c b/sys/kern/kern_lock.c index 3655389..ca2a359 100644 --- a/sys/kern/kern_lock.c +++ b/sys/kern/kern_lock.c @@ -583,6 +583,9 @@ __lockmgr_args(struct lock *lk, u_int flags, struct lock_object *ilk, CTR3(KTR_LOCK, "%s: spinning on %p held by %p", __func__, lk, owner); + KTR_STATE1(KTR_SCHED, "thread", + sched_tdname(td), "spinning", + "lockname:\"%s\"", lk->lock_object.lo_name); /* * If we are holding also an interlock drop it @@ -598,11 +601,16 @@ __lockmgr_args(struct lock *lk, u_int flags, struct lock_object *ilk, while (LK_HOLDER(lk->lk_lock) == (uintptr_t)owner && TD_IS_RUNNING(owner)) cpu_spinwait(); + KTR_STATE0(KTR_SCHED, "thread", + sched_tdname(td), "running"); GIANT_RESTORE(); continue; } else if (LK_CAN_ADAPT(lk, flags) && (x & LK_SHARE) != 0 && LK_SHARERS(x) && spintries < alk_retries) { + KTR_STATE1(KTR_SCHED, "thread", + sched_tdname(td), "spinning", + "lockname:\"%s\"", lk->lock_object.lo_name); if (flags & LK_INTERLOCK) { class->lc_unlock(ilk); flags &= ~LK_INTERLOCK; @@ -620,6 +628,8 @@ __lockmgr_args(struct lock *lk, u_int flags, struct lock_object *ilk, break; cpu_spinwait(); } + KTR_STATE0(KTR_SCHED, "thread", + sched_tdname(td), "running"); GIANT_RESTORE(); if (i != alk_loops) continue; @@ -815,6 +825,9 @@ __lockmgr_args(struct lock *lk, u_int flags, struct lock_object *ilk, CTR3(KTR_LOCK, "%s: spinning on %p held by %p", __func__, lk, owner); + KTR_STATE1(KTR_SCHED, "thread", + sched_tdname(td), "spinning", + "lockname:\"%s\"", lk->lock_object.lo_name); /* * If we are holding also an interlock drop it @@ -830,6 +843,8 @@ __lockmgr_args(struct lock *lk, u_int flags, struct lock_object *ilk, while (LK_HOLDER(lk->lk_lock) == (uintptr_t)owner && TD_IS_RUNNING(owner)) cpu_spinwait(); + KTR_STATE0(KTR_SCHED, "thread", + sched_tdname(td), "running"); GIANT_RESTORE(); continue; } else if (LK_CAN_ADAPT(lk, flags) && @@ -839,6 +854,9 @@ __lockmgr_args(struct lock *lk, u_int flags, struct lock_object *ilk, !atomic_cmpset_ptr(&lk->lk_lock, x, x | LK_EXCLUSIVE_SPINNERS)) continue; + KTR_STATE1(KTR_SCHED, "thread", + sched_tdname(td), "spinning", + "lockname:\"%s\"", lk->lock_object.lo_name); if (flags & LK_INTERLOCK) { class->lc_unlock(ilk); flags &= ~LK_INTERLOCK; @@ -855,6 +873,8 @@ __lockmgr_args(struct lock *lk, u_int flags, struct lock_object *ilk, break; cpu_spinwait(); } + KTR_STATE0(KTR_SCHED, "thread", + sched_tdname(td), "running"); GIANT_RESTORE(); if (i != alk_loops) continue; |
