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Should a x86 gdb work under an x86_64 kernel?

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From: Theodore Ts'o <tytso@...>
To: <linux-kernel@...>
Subject: Should a x86 gdb work under an x86_64 kernel?
Date: Monday, February 25, 2008 - 10:49 am

Hi,

	I've noticed that if I try to use a 32-bit x86 gdb to debug a
32-bit program under a 64-bit x86_64 kernel, gdb (version 6.6-debian,
from Ubuntu Gutsy) immediately core dumps as soon as I run the test
program under the debugger.  Is this normal/expected/known bug?

	I haven't tried bisecting it yet, but it's been broken as early
as a little after 2.6.25-rc1, in late January.  But before I spend a
large amount of time doing the bisect, I thought I'd ask if anyone has
heard of this issue.  Does this sound familiar?

						- Ted
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Messages in current thread:
Should a x86 gdb work under an x86_64 kernel?, Theodore Ts'o, (Mon Feb 25, 10:49 am)
Re: Should a x86 gdb work under an x86_64 kernel?, Andi Kleen, (Mon Mar 3, 7:56 am)
Re: Should a x86 gdb work under an x86_64 kernel?, Jeff Dike, (Mon Feb 25, 12:14 pm)