From: Andi Kleen <ak@suse.de>
Date: Sat, 16 Apr 2005 22:25:06 +0000 (-0700)
Subject: [PATCH] x86_64: Make kernel math errors a die() now
X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=3a848f632f86f1602094e6172cdc05c048042d7a;p=openwrt%2Fstaging%2Fblogic.git

[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>
---

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;
 
 	/*