From: Alexander van Heukelum <heukelum@fastmail.fm>
Handle SIMD coprocessor exception with interrupt initially off.
Signed-off-by: Alexander van Heukelum <heukelum@fastmail.fm>
---
arch/x86/kernel/traps_32.c | 4 +++-
1 files changed, 3 insertions(+), 1 deletions(-)
diff --git a/arch/x86/kernel/traps_32.c b/arch/x86/kernel/traps_32.c
index f696914..1ad7697 100644
--- a/arch/x86/kernel/traps_32.c
+++ b/arch/x86/kernel/traps_32.c
@@ -1142,6 +1142,8 @@ static void simd_math_error(void __user *ip)
void do_simd_coprocessor_error(struct pt_regs *regs, long error_code)
{
+ conditional_sti(regs);
+
if (cpu_has_xmm) {
/* Handle SIMD FPU exceptions on PIII+ processors. */
ignore_fpu_irq = 1;
@@ -1292,7 +1294,7 @@ void __init trap_init(void)
#ifdef CONFIG_X86_MCE
set_intr_gate(18, &machine_check);
#endif
- set_trap_gate(19, &simd_coprocessor_error);
+ set_intr_gate(19, &simd_coprocessor_error);
if (cpu_has_fxsr) {
printk(KERN_INFO "Enabling fast FPU save and restore... ");
--
1.5.4.3
--
