lkml.org 
[lkml]   [2005]   [Apr]   [12]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
Subject[patch 086/198] x86_64: Make kernel math errors a die() now
From
Date

From: "Andi Kleen" <ak@suse.de>

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>
---

25-akpm/arch/x86_64/kernel/traps.c | 10 ++--------
1 files changed, 2 insertions(+), 8 deletions(-)

diff -puN arch/x86_64/kernel/traps.c~x86_64-make-kernel-math-errors-a-die-now arch/x86_64/kernel/traps.c
--- 25/arch/x86_64/kernel/traps.c~x86_64-make-kernel-math-errors-a-die-now 2005-04-12 03:21:23.706532960 -0700
+++ 25-akpm/arch/x86_64/kernel/traps.c 2005-04-12 03:21:23.709532504 -0700
@@ -733,14 +733,8 @@ static int kernel_math_error(struct pt_r
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_erro

conditional_sti(regs);
if ((regs->cs & 3) == 0 &&
- kernel_math_error(regs, "simd math error"))
+ kernel_math_error(regs, "kernel simd math error"))
return;

/*
_
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
\
 
 \ /
  Last update: 2005-04-13 05:17    [W:0.052 / U:0.452 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site