From: John Hodge <tpg@mutabah.net>
Date: Tue, 1 Mar 2011 06:38:03 +0000 (+0800)
Subject: Kernel - Added backtrace for user segfault
X-Git-Tag: rel0.10~180
X-Git-Url: https://git.ucc.asn.au/?a=commitdiff_plain;h=142cba687f6eede6de63efbb25d2fc811f2fe1d1;p=tpg%2Facess2.git

Kernel - Added backtrace for user segfault
---

diff --git a/Kernel/arch/x86/mm_virt.c b/Kernel/arch/x86/mm_virt.c
index 68fd5c0d..72c40c2a 100644
--- a/Kernel/arch/x86/mm_virt.c
+++ b/Kernel/arch/x86/mm_virt.c
@@ -218,6 +218,9 @@ void MM_PageFault(tVAddr Addr, Uint ErrorCode, tRegs *Regs)
 			);
 		Warning("User Pagefault: Instruction at %04x:%08x accessed %p", Regs->cs, Regs->eip, Addr);
 		__asm__ __volatile__ ("sti");	// Restart IRQs
+		#if 1
+		Error_Backtrace(Regs->eip, Regs->ebp);
+		#endif
 		Threads_SegFault(Addr);
 		return ;
 	}