From: Alexander van Heukelum <heukelum@fastmail.fm>
Handle coprocessor error exception with interrupt initially off.
Signed-off-by: Alexander van Heukelum <heukelum@fastmail.fm>
---
arch/x86/kernel/traps_32.c | 3 ++-
1 files changed, 2 insertions(+), 1 deletions(-)
diff --git a/arch/x86/kernel/traps_32.c b/arch/x86/kernel/traps_32.c
index ef934a2..733c0e3 100644
--- a/arch/x86/kernel/traps_32.c
+++ b/arch/x86/kernel/traps_32.c
@@ -1086,6 +1086,7 @@ void math_error(void __user *ip)
void do_coprocessor_error(struct pt_regs *regs, long error_code)
{
+ conditional_sti(regs);
ignore_fpu_irq = 1;
math_error((void __user *)regs->ip);
}
@@ -1277,7 +1278,7 @@ void __init trap_init(void)
set_intr_gate(13, &general_protection);
set_intr_gate(14, &page_fault);
set_intr_gate(15, &spurious_interrupt_bug);
- set_trap_gate(16, &coprocessor_error);
+ set_intr_gate(16, &coprocessor_error);
set_trap_gate(17, &alignment_check);
#ifdef CONFIG_X86_MCE
set_trap_gate(18, &machine_check);
--
1.5.4.3
--
