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Index: sys/kern/kern_exit.c
===================================================================
--- sys/kern/kern_exit.c
+++ sys/kern/kern_exit.c
@@ -284,6 +284,11 @@
p->p_flag |= P_WEXIT;
wakeup(&p->p_stype);
+ if (p->p_flag & P_PPWAIT) {
+ p->p_flag &= ~P_PPWAIT;
+ cv_broadcast(&p->p_pwait);
+ }
+
/*
* Wait for any processes that have a hold on our vmspace to
* release their reference.
Index: sys/kern/kern_fork.c
===================================================================
--- sys/kern/kern_fork.c
+++ sys/kern/kern_fork.c
@@ -723,6 +723,7 @@
*/
_PHOLD(p2);
if (fr->fr_flags & RFPPWAIT) {
+ _PHOLD(p2);
td->td_pflags |= TDP_RFPPWAIT;
td->td_rfppwait_p = p2;
td->td_dbgflags |= TDB_VFORK;
Index: sys/kern/subr_syscall.c
===================================================================
--- sys/kern/subr_syscall.c
+++ sys/kern/subr_syscall.c
@@ -257,6 +257,7 @@
}
cv_timedwait(&p2->p_pwait, &p2->p_mtx, hz);
}
+ _PRELE(p2);
PROC_UNLOCK(p2);
if (td->td_dbgflags & TDB_VFORK) {

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