From 76e27a0181bf12caae27c362d3a166d3cc59bedf Mon Sep 17 00:00:00 2001
From: John Hodge <tpg@mutabah.net>
Date: Thu, 20 Oct 2011 12:02:30 +0800
Subject: [PATCH] Kernel/x86_64 - Added backtrace on user page fault
---
Kernel/arch/x86_64/mm_virt.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/Kernel/arch/x86_64/mm_virt.c b/Kernel/arch/x86_64/mm_virt.c
index 9367a4f2..c04fcf3a 100644
--- a/Kernel/arch/x86_64/mm_virt.c
+++ b/Kernel/arch/x86_64/mm_virt.c
@@ -202,6 +202,7 @@ int MM_PageFault(tVAddr Addr, Uint ErrorCode, tRegs *Regs)
Warning("User Pagefault: Instruction at %04x:%p accessed %p",
Regs->CS, Regs->RIP, Addr);
__asm__ __volatile__ ("sti"); // Restart IRQs
+ Error_Backtrace(Regs->RIP, Regs->RBP);
Threads_SegFault(Addr);
return 0;
}
--
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