From 34ece34e013c43f358c561899abb71e3bedd8d4b Mon Sep 17 00:00:00 2001
From: Mark <alnyan@airmail.cc>
Date: Thu, 11 Jun 2020 17:11:24 +0300
Subject: [PATCH] More detailed panic messages

---
 sys/panic.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/sys/panic.c b/sys/panic.c
index f88f2ab..0c9eb16 100644
--- a/sys/panic.c
+++ b/sys/panic.c
@@ -7,6 +7,9 @@
 #include "sys/debug.h"
 
 void panicf(const char *fmt, ...) {
+    uintptr_t rbp;
+    asm volatile ("movq %%rbp, %0":"=r"(rbp));
+
     asm volatile ("cli");
     va_list args;
     kfatal("--- Panic ---\n");
@@ -14,9 +17,12 @@ void panicf(const char *fmt, ...) {
     va_start(args, fmt);
     debugs(DEBUG_FATAL, "\033[41m");
     debugfv(DEBUG_FATAL, fmt, args);
-    debugs(DEBUG_FATAL, "\033[0m");
+    debugs(DEBUG_FATAL, "\n\033[0m");
     va_end(args);
 
+    kfatal("Call trace:\n");
+    debug_backtrace(rbp, 0, 10);
+
     kfatal("--- Panic ---\n");
 
 #if defined(AMD64_SMP)