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-rw-r--r--proc/wait.c7
1 files changed, 5 insertions, 2 deletions
diff --git a/proc/wait.c b/proc/wait.c
index 2674c408..0627e82d 100644
--- a/proc/wait.c
+++ b/proc/wait.c
@@ -47,8 +47,9 @@ struct zombie
static struct zombie *zombie_list;
-/* A process is dying. Check if the parent is waiting for us to exit;
- if so wake it up, otherwise, enter us as a zombie. */
+/* A process is dying. Send SIGCHLD to the parent. Check if the parent is
+ waiting for us to exit; if so wake it up, otherwise, enter us as a
+ zombie. */
void
alert_parent (struct proc *p)
{
@@ -57,6 +58,8 @@ alert_parent (struct proc *p)
/* Don't allow init to exit */
assert (p->p_parent);
+ nowait_sig_post (p->p_parent->p_msgport, SIGCHLD, p->p_parent->p_task);
+
if (!p->p_exiting)
p->p_status = W_EXITCODE (0, SIGKILL);