linux-kernel - Re: [BUG?] mtrr sanitizer fails on Latitude E6230

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]

Date:	Wed, 6 Nov 2013 12:08:12 -0800
From:	Yinghai Lu <yinghai@...nel.org>
To:	Mikael Pettersson <mikpelinux@...il.com>
Cc:	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [BUG?] mtrr sanitizer fails on Latitude E6230

On Wed, Nov 6, 2013 at 1:16 AM, Mikael Pettersson <mikpelinux@...il.com> wrote:
> I recently got a Dell Latitude E6230 (Ivy Bridge i7-3540M) and noticed that
> the mtrr sanitizer failed on it:
>
> === snip ===
> Linux version 3.12.0 (mikpe@...ley) (gcc version 4.8.3 20131017 (prerelease) (GCC) ) #1 SMP Wed Nov 6 09:46:02 CET 2013
> Command line: ro root=LABEL=/ resume=/dev/sda2 rd_NO_LUKS rd_NO_LVM rd_NO_MD rd_NO_DM LANG=en_US.UTF-8 SYSFONT=latarcyrheb-sun16 KEYTABLE=sv-latin1
...
gran_size: 8M  chunk_size: 64M         num_reg: 9      lose cover RAM: 6M
...
> mtrr_cleanup: can not find optimal value
> please specify mtrr_gran_size/mtrr_chunk_size
> === snip ===
>
> For now I'm disabling the mtrr sanitizer in this machine's kernel.

Can you try to boot with "mtrr_gran_size=8m mtrr_chunk_size=64m" ?

Thanks

Yinghai
--
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/