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i386: convert hardware exception 12 to an interrupt gate 

Handle stack segment exception with interrupt initially off.

Signed-off-by: Alexander van Heukelum <heukelum@fastmail.fm>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Alexander van Heukelum 2008-09-09 21:56:06 +02:00 committed by Ingo Molnar
parent 36d936c798
commit f5ca81878b
1 changed files with 2 additions and 2 deletions
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4
arch/x86/kernel/traps_32.c
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@ -640,7 +640,7 @@ DO_ERROR_INFO(6, SIGILL, "invalid opcode", invalid_op, ILL_ILLOPN, regs->ip, 0)
DO_ERROR(9, SIGFPE, "coprocessor segment overrun", coprocessor_segment_overrun) DO_ERROR(9, SIGFPE, "coprocessor segment overrun", coprocessor_segment_overrun)
DO_ERROR(10, SIGSEGV, "invalid TSS", invalid_TSS) DO_ERROR(10, SIGSEGV, "invalid TSS", invalid_TSS)
DO_ERROR(11, SIGBUS, "segment not present", segment_not_present) DO_ERROR(11, SIGBUS, "segment not present", segment_not_present)
DO_TRAP(12, SIGBUS, "stack segment", stack_segment) DO_ERROR(12, SIGBUS, "stack segment", stack_segment)
DO_TRAP_INFO(17, SIGBUS, "alignment check", alignment_check, BUS_ADRALN, 0, 0) DO_TRAP_INFO(17, SIGBUS, "alignment check", alignment_check, BUS_ADRALN, 0, 0)
DO_TRAP_INFO(32, SIGILL, "iret exception", iret_error, ILL_BADSTK, 0, 1) DO_TRAP_INFO(32, SIGILL, "iret exception", iret_error, ILL_BADSTK, 0, 1)
@ -1272,7 +1272,7 @@ void __init trap_init(void)
set_intr_gate(9, &coprocessor_segment_overrun); set_intr_gate(9, &coprocessor_segment_overrun);
set_intr_gate(10, &invalid_TSS); set_intr_gate(10, &invalid_TSS);
set_intr_gate(11, &segment_not_present); set_intr_gate(11, &segment_not_present);
set_trap_gate(12, &stack_segment); set_intr_gate(12, &stack_segment);
set_trap_gate(13, &general_protection); set_trap_gate(13, &general_protection);
set_intr_gate(14, &page_fault); set_intr_gate(14, &page_fault);
set_trap_gate(15, &spurious_interrupt_bug); set_trap_gate(15, &spurious_interrupt_bug);