From: John Hodge <tpg@mutabah.net>
Date: Thu, 20 Oct 2011 04:02:30 +0000 (+0800)
Subject: Kernel/x86_64 - Added backtrace on user page fault
X-Git-Tag: rel0.13~26
X-Git-Url: https://git.ucc.asn.au/?a=commitdiff_plain;h=76e27a0181bf12caae27c362d3a166d3cc59bedf;p=tpg%2Facess2.git

Kernel/x86_64 - Added backtrace on user page fault
---

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;
 	}