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diff --git a/sys/kern/kern_sig.c b/sys/kern/kern_sig.c
--- a/sys/kern/kern_sig.c
+++ b/sys/kern/kern_sig.c
@@ -3682,6 +3682,7 @@
*/
p->p_pptr->p_flag |= P_STATCHILD;
wakeup(p->p_pptr);
+ procdesc_jobstate(p);
ps = p->p_pptr->p_sigacts;
mtx_lock(&ps->ps_mtx);
diff --git a/sys/kern/sys_procdesc.c b/sys/kern/sys_procdesc.c
--- a/sys/kern/sys_procdesc.c
+++ b/sys/kern/sys_procdesc.c
@@ -64,6 +64,7 @@
#include <sys/param.h>
#include <sys/capsicum.h>
+#include <sys/event.h>
#include <sys/fcntl.h>
#include <sys/file.h>
#include <sys/filedesc.h>
@@ -342,7 +343,7 @@
return (1);
}
selwakeup(&pd->pd_selinfo);
- KNOTE_LOCKED(&pd->pd_selinfo.si_note, NOTE_EXIT);
+ KNOTE_LOCKED(&pd->pd_selinfo.si_note, NOTE_EXIT | NOTE_PDSIGCHLD);
PROCDESC_UNLOCK(pd);
/* Wakeup all waiters for this procdesc' process exit. */
@@ -350,6 +351,21 @@
return (0);
}
+void
+procdesc_jobstate(struct proc *p)
+{
+ struct procdesc *pd;
+
+ PROC_LOCK_ASSERT(p, MA_OWNED);
+ pd = p->p_procdesc;
+ if (pd == NULL)
+ return;
+
+ PROCDESC_LOCK(pd);
+ KNOTE_LOCKED(&pd->pd_selinfo.si_note, NOTE_PDSIGCHLD);
+ PROCDESC_UNLOCK(pd);
+}
+
/*
* When a process descriptor is reaped, perhaps as a result of close(), release
* the process's reference on the process descriptor.
diff --git a/sys/sys/event.h b/sys/sys/event.h
--- a/sys/sys/event.h
+++ b/sys/sys/event.h
@@ -205,6 +205,7 @@
#define NOTE_EXIT 0x80000000 /* process exited */
#define NOTE_FORK 0x40000000 /* process forked */
#define NOTE_EXEC 0x20000000 /* process exec'd */
+#define NOTE_PDSIGCHLD NOTE_FORK /* pdwait() info available */
#define NOTE_PCTRLMASK 0xf0000000 /* mask for hint bits */
#define NOTE_PDATAMASK 0x000fffff /* mask for pid */
diff --git a/sys/sys/procdesc.h b/sys/sys/procdesc.h
--- a/sys/sys/procdesc.h
+++ b/sys/sys/procdesc.h
@@ -102,6 +102,7 @@
* In-kernel interfaces to process descriptors.
*/
int procdesc_exit(struct proc *);
+void procdesc_jobstate(struct proc *p);
int procdesc_find(struct thread *, int fd, const cap_rights_t *,
struct proc **);
int kern_pdgetpid(struct thread *, int fd, const cap_rights_t *,

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