[PATCH] x86_64: Make kernel math errors a die() now

There were no reports about the previous warning for FPU exceptions in the
kernel, so make it a die() now.

Also improve the error messages slightly.

Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 2 insertions, 8 deletions

diff --git a/arch/x86_64/kernel/traps.c b/arch/x86_64/kernel/traps.c
index 1b06ab24538b..2f42fd5c075f 100644
--- a/arch/x86_64/kernel/traps.c
+++ b/arch/x86_64/kernel/traps.c
@@ -733,14 +733,8 @@ static int kernel_math_error(struct pt_regs *regs, char *str)
                 return 1;
         }
         notify_die(DIE_GPF, str, regs, 0, 16, SIGFPE);
-#if 0
-        /* This should be a die, but warn only for now */
+        /* Illegal floating point operation in the kernel */
         die(str, regs, 0);
-#else
-        printk(KERN_DEBUG "%s: %s at ", current->comm, str);
-        printk_address(regs->rip);
-        printk("\n");
-#endif
         return 0;
 }
 
@@ -824,7 +818,7 @@ asmlinkage void do_simd_coprocessor_error(struct pt_regs *regs)
 
         conditional_sti(regs);
         if ((regs->cs & 3) == 0 &&
-                kernel_math_error(regs, "simd math error"))
+                kernel_math_error(regs, "kernel simd math error"))
                 return;
 
         /*