From 98f36a825da9a186d2f0ba399b0830eff9c8d258 Mon Sep 17 00:00:00 2001
From: dzwdz
Date: Sun, 12 Sep 2021 16:42:59 +0200
Subject: log cr2 on page faults

---
 src/kernel/arch/i386/interrupts/isr.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

(limited to 'src/kernel/arch/i386/interrupts/isr.c')

diff --git a/src/kernel/arch/i386/interrupts/isr.c b/src/kernel/arch/i386/interrupts/isr.c
index 96d053e..86f697f 100644
--- a/src/kernel/arch/i386/interrupts/isr.c
+++ b/src/kernel/arch/i386/interrupts/isr.c
@@ -12,7 +12,13 @@ void isr_stage3(int interrupt) {
 	switch (interrupt) {
 		case 0x08: log_n_panic("#DF"); // double fault
 		case 0x0D: log_n_panic("#GP"); // general protection fault
-		case 0x0E: log_n_panic("#PF"); // page fault
+		case 0x0E: { // page fault
+			int cr2;
+			tty_const("#PF at ");
+			asm ("mov %%cr2, %0;" : "=r"(cr2) ::);
+			_tty_var(cr2);
+			panic();
+		}
 
 		case 0x34:
 			isr_test_interrupt_called = true;
-- 
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