diff options
| -rw-r--r-- | sys/kern/kern_exit.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/sys/kern/kern_exit.c b/sys/kern/kern_exit.c index 5b937b4..c857413 100644 --- a/sys/kern/kern_exit.c +++ b/sys/kern/kern_exit.c @@ -257,8 +257,6 @@ retry: KASSERT(!timevalisset(&p->p_realtimer.it_value), ("realtime timer is still armed")); } - sigqueue_flush(&p->p_sigqueue); - sigqueue_flush(&td->td_sigqueue); PROC_UNLOCK(p); /* @@ -512,6 +510,14 @@ retry: sx_xunlock(&proctree_lock); /* + * The state PRS_ZOMBIE prevents other proesses from sending + * signal to the process, to avoid memory leak, we free memory + * for signal queue at the time when the state is set. + */ + sigqueue_flush(&p->p_sigqueue); + sigqueue_flush(&td->td_sigqueue); + + /* * We have to wait until after acquiring all locks before * changing p_state. We need to avoid all possible context * switches (including ones from blocking on a mutex) while |
