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Date: Fri, 5 Apr 2002 21:29:44 +0300 (EEST)
From: halfdead <halfdead@daphnes.ro>
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To: <linux-kernel@vger.kernel.org>
Subject: weird IDT issue
Message-ID: <Pine.LNX.4.33.0204052125250.15770-100000@daphnes.ro>
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Sender: linux-kernel-owner@vger.kernel.org
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hey! i experience a weird IDT issue on kernels 2.4.x. what i want to do is
finding the address of a certain IDT gate but when i try to read memory
from ring0 at that location it segfaults. the code is in assembler.

.bss
idtr:
.double
.text

get_gate:
	movl	$0x80, %eax
	sidt	idtr
	movl	idtr+2, %ebx
	leal	(%ebx, %eax, 8), %ebx
	movw	(%ebx), %cx 	<- segfault

i cannot find out why is this happening.. i would apreciate any help that
i can get.

- halfdead

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