From b27f275014cb473960b9e4d36b03455e404116a7 Mon Sep 17 00:00:00 2001
From: Robert Morris <rtm@csail.mit.edu>
Date: Tue, 2 Jul 2019 11:17:50 -0400
Subject: [PATCH] avoid allocproc() returning a struct proc with non-zero p->sz

---
 kernel/proc.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/kernel/proc.c b/kernel/proc.c
index e0ee965..20d5085 100644
--- a/kernel/proc.c
+++ b/kernel/proc.c
@@ -124,9 +124,11 @@ freeproc(struct proc *p)
   if(p->pagetable)
     proc_freepagetable(p->pagetable, p->sz);
   p->pagetable = 0;
+  p->sz = 0;
   p->pid = 0;
   p->parent = 0;
   p->name[0] = 0;
+  p->chan = 0;
   p->killed = 0;
   p->state = UNUSED;
 }