From e58b93c02fcc427342e13aa5230155516ceac020 Mon Sep 17 00:00:00 2001
From: MANVENDRA RAJPUROHIT
 <145118895+manvendrarajpurohit@users.noreply.github.com>
Date: Thu, 23 Apr 2026 15:51:55 +0000
Subject: [PATCH] bug p28-kill:set killed=1 on unexpected user-space traps

---
 trap.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/trap.c b/trap.c
index bd1af93..f48ccd9 100644
--- a/trap.c
+++ b/trap.c
@@ -66,6 +66,12 @@ trap(struct trapframe *tf)
               tf->trapno, cpuid(), tf->eip, rcr2());
       panic("trap");
     }
+    // In user space, assume process misbehaved.
+    cprintf("pid %d %s: trap %d err %d on cpu %d "
+            "eip 0x%x addr 0x%x--kill proc\n",
+            myproc()->pid, myproc()->name, tf->trapno,
+            tf->err, cpuid(), tf->eip, rcr2());
+    myproc()->killed = 1;
   }
 
   // Force process to exit if it has been killed and is in user space.