diff options
Diffstat (limited to 'sys/kern/kern_fork.c')
| -rw-r--r-- | sys/kern/kern_fork.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/sys/kern/kern_fork.c b/sys/kern/kern_fork.c index 8fe1006..69071a1 100644 --- a/sys/kern/kern_fork.c +++ b/sys/kern/kern_fork.c @@ -382,12 +382,15 @@ retry: p2 = LIST_FIRST(&allproc); again: for (; p2 != NULL; p2 = LIST_NEXT(p2, p_list)) { + PROC_LOCK(p2); while (p2->p_pid == trypid || p2->p_pgrp->pg_id == trypid || p2->p_session->s_sid == trypid) { trypid++; - if (trypid >= pidchecked) + if (trypid >= pidchecked) { + PROC_UNLOCK(p2); goto retry; + } } if (p2->p_pid > trypid && pidchecked > p2->p_pid) pidchecked = p2->p_pid; @@ -397,6 +400,7 @@ again: if (p2->p_session->s_sid > trypid && pidchecked > p2->p_session->s_sid) pidchecked = p2->p_session->s_sid; + PROC_UNLOCK(p2); } if (!doingzomb) { doingzomb = 1; @@ -559,8 +563,10 @@ again: * been preserved. */ p2->p_flag |= p1->p_flag & (P_SUGID | P_ALTSTACK); + SESS_LOCK(p1->p_session); if (p1->p_session->s_ttyvp != NULL && p1->p_flag & P_CONTROLT) p2->p_flag |= P_CONTROLT; + SESS_UNLOCK(p1->p_session); if (flags & RFPPWAIT) p2->p_flag |= P_PPWAIT; |
