linux-kernel - Re: [PATCH -v2 08/13] x86: if kernel .text .data .bss are not marked as E820

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <CAOJsxLF-FyPGAqPVg4jaRmPvsjreb=SfrJ7puB_dX1ksM_kg1Q@mail.gmail.com>
Date:	Mon, 3 Sep 2012 08:31:43 +0300
From:	Pekka Enberg <penberg@...nel.org>
To:	Yinghai Lu <yinghai@...nel.org>
Cc:	Thomas Gleixner <tglx@...utronix.de>, Ingo Molnar <mingo@...e.hu>,
	"H. Peter Anvin" <hpa@...or.com>, Jacob Shin <jacob.shin@....com>,
	Tejun Heo <tj@...nel.org>, linux-kernel@...r.kernel.org
Subject: Re: [PATCH -v2 08/13] x86: if kernel .text .data .bss are not marked
 as E820_RAM, complain and fix

On Sun, Sep 2, 2012 at 10:46 AM, Yinghai Lu <yinghai@...nel.org> wrote:
> From: Jacob Shin <jacob.shin@....com>
>
> There could be cases where user supplied memmap=exactmap memory
> mappings do not mark the region where the kernel .text .data and
> .bss reside as E820_RAM, as reported here:
>
> https://lkml.org/lkml/2012/8/14/86
>
> Handle it by complaining, and adding the range back into the e820.
>
> Signed-off-by: Jacob Shin <jacob.shin@....com>

This should have Yinghai's sign-off and the warning could be less cryptic.

As for the fix itself:

Reviewed-by: Pekka Enberg <penberg@...nel.org>
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/