X-Git-Url: https://git.openpandora.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=arch%2Fx86%2Fmm%2Ffault.c;h=d18ea136d8a67567aabf8a0a9434ab0976fb2e89;hb=b2aaf8f74cdc84a9182f6cabf198b7763bcb9d40;hp=3f2b8962cbd0f71223ed8dfed8f90b893a966349;hpb=43096597a4cc4bd3f912be8a69dbd12e27e08038;p=pandora-kernel.git

diff --git a/arch/x86/mm/fault.c b/arch/x86/mm/fault.c
index 3f2b8962cbd0..d18ea136d8a6 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>
@@ -588,6 +589,8 @@ 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;
 #endif
@@ -850,6 +853,10 @@ 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;