linux-kernel - [PATCH 5/24] i386: convert hardware exception 4 to an interrupt gate

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Date:	Tue,  9 Sep 2008 21:55:59 +0200
From:	heukelum@...tmail.fm
To:	linux-kernel@...r.kernel.org, mingo@...e.hu, ak@...e.de
Cc:	Alexander van Heukelum <heukelum@...tmail.fm>
Subject: [PATCH 5/24] i386: convert hardware exception 4 to an interrupt gate

From: Alexander van Heukelum <heukelum@...tmail.fm>

Handle overflow exception with interrupt initially off.

Signed-off-by: Alexander van Heukelum <heukelum@...tmail.fm>
---
 arch/x86/kernel/traps_32.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/x86/kernel/traps_32.c b/arch/x86/kernel/traps_32.c
index 944641a..5d762a8 100644
--- a/arch/x86/kernel/traps_32.c
+++ b/arch/x86/kernel/traps_32.c
@@ -633,7 +633,7 @@ void do_##name(struct pt_regs *regs, long error_code)			\
 }
 
 DO_VM86_ERROR_INFO(0, SIGFPE, "divide error", divide_error, FPE_INTDIV, regs->ip)
-DO_VM86_TRAP(4, SIGSEGV, "overflow", overflow)
+DO_VM86_ERROR(4, SIGSEGV, "overflow", overflow)
 DO_VM86_TRAP(5, SIGSEGV, "bounds", bounds)
 DO_TRAP_INFO(6, SIGILL, "invalid opcode", invalid_op, ILL_ILLOPN, regs->ip, 0)
 DO_TRAP(9, SIGFPE, "coprocessor segment overrun", coprocessor_segment_overrun)
@@ -1250,7 +1250,7 @@ void __init trap_init(void)
 	set_intr_gate(1, &debug);
 	set_intr_gate(2, &nmi);
 	set_system_intr_gate(3, &int3); /* int3 can be called from all */
-	set_system_gate(4, &overflow); /* int4 can be called from all */
+	set_system_intr_gate(4, &overflow); /* int4 can be called from all */
 	set_trap_gate(5, &bounds);
 	set_trap_gate(6, &invalid_op);
 	set_trap_gate(7, &device_not_available);
-- 
1.5.4.3

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