X-Git-Url: http://www.pilppa.org/gitweb/gitweb.cgi?a=blobdiff_plain;f=arch%2Fx86%2Fmm%2Ffault.c;h=4c056b5d6a956712691748f31b5bbbae4f4b8800;hb=a9de18eb761f7c1c860964b2e5addc1a35c7e861;hp=57ec8c86a8776700729f682fc8a9b60b6a3482cd;hpb=6a94cb73064c952255336cc57731904174b2c58f;p=linux-2.6-omap-h63xx.git

diff --git a/arch/x86/mm/fault.c b/arch/x86/mm/fault.c
index 57ec8c86a87..4c056b5d6a9 100644
--- a/arch/x86/mm/fault.c
+++ b/arch/x86/mm/fault.c
@@ -26,6 +26,7 @@
 #include <linux/kprobes.h>
 #include <linux/uaccess.h>
 #include <linux/kdebug.h>
+#include <linux/magic.h>
 
 #include <asm/system.h>
 #include <asm/desc.h>
@@ -589,6 +590,8 @@ void __kprobes do_page_fault(struct pt_regs *regs, unsigned long error_code)
 	unsigned long address;
 	int write, si_code;
 	int fault;
+	unsigned long *stackend;
+
 #ifdef CONFIG_X86_64
 	unsigned long flags;
 	int sig;
@@ -842,6 +845,10 @@ no_context:
 
 	show_fault_oops(regs, error_code, address);
 
+ 	stackend = end_of_stack(tsk);
+	if (*stackend != STACK_END_MAGIC)
+		printk(KERN_ALERT "Thread overran stack, or stack corrupted\n");
+
 	tsk->thread.cr2 = address;
 	tsk->thread.trap_no = 14;
 	tsk->thread.error_code = error_code;