linux-kernel - Re: [PATCH 3/3] Limit E820 map when a user-defined memory map is specified

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: <86802c440806221311q5a65cdb6me24b45de5657359c@mail.gmail.com>
Date:	Sun, 22 Jun 2008 13:11:38 -0700
From:	"Yinghai Lu" <yhlu.kernel@...il.com>
To:	"Bernhard Walle" <bwalle@...e.de>
Cc:	x86@...nel.org, kexec@...ts.infradead.org,
	linux-kernel@...r.kernel.org, vgoyal@...hat.com
Subject: Re: [PATCH 3/3] Limit E820 map when a user-defined memory map is specified

On Sun, Jun 22, 2008 at 12:56 PM, Bernhard Walle <bwalle@...e.de> wrote:
> * "Yinghai Lu" <yhlu.kernel@...il.com> [2008-06-20 13:34]:
>>
>> any problem that you encountered without this patch?
>
> Sorry, forgot to answer that question.
>
> Yes, if you use mem=3G and take a dump, kexec builds the ELF core
> headers for the full memory size, which means that the dump is as large
> as the physical memory of the machine is, which doesn't make sense.

can we use e820_update_range instead? so e820_setup_gap still can get
correct value?

YH
--
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/