linux-kernel - Re: [PATCH] debug: fix WARN_ON

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Message-ID: <1500100197.27838.21.camel@gmx.de>
Date:   Sat, 15 Jul 2017 08:29:57 +0200
From:   Mike Galbraith <efault@....de>
To:     Josh Poimboeuf <jpoimboe@...hat.com>, x86@...nel.org
Cc:     linux-kernel@...r.kernel.org, Peter Zijlstra <peterz@...radead.org>
Subject: Re: [PATCH] debug: fix WARN_ON_ONCE() for modules

On Sat, 2017-07-15 at 00:10 -0500, Josh Poimboeuf wrote:
> 
> The bug table was made writable for vmlinux, which relies on
> vmlinux.lds.S and vmlinux.lds.h for laying out the sections.  However,
> it wasn't made writable for modules, which rely on the ELF section
> header flags.

It seems vmlinux sort of relies on your fix too.  objdump did show
vmlinux __bug_table as being READONLY, but that (lie) is now gone.

	-Mike