linux-kernel - Re: memcpy_fromio in dmi

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: <20130425095242.GT3658@sgi.com>
Date:	Thu, 25 Apr 2013 04:52:42 -0500
From:	Robin Holt <holt@....com>
To:	"Luck, Tony" <tony.luck@...el.com>
Cc:	Jean Delvare <jdelvare@...e.de>,
	DuanZhenzhong <zhenzhong.duan@...cle.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	linux-kernel <linux-kernel@...r.kernel.org>,
	"Yu, Fenghua" <fenghua.yu@...el.com>, "holt@....com" <holt@....com>
Subject: Re: memcpy_fromio in dmi_scan.c

On Wed, Apr 24, 2013 at 09:07:24PM -0500, Robin Holt wrote:
> On Wed, Apr 24, 2013 at 08:16:50PM +0000, Luck, Tony wrote:
> > > That being said, "my" SN2 machine was previously running kernel 3.0.34
> > > which has the old dmi_scan code and it also said "DMI not present or
> > > invalid." Plus dmidecode fails on this machine with:
> > >
> > > /sys/firmware/efi/systab: SMBIOS entry point missing
> > >
> > > So it might as well be that DMI support on SN2 was already broken.
> > > Please let me know your findings on other SN2 machines.
> > 
> > I don't have an sn2 to test. Added Robin Holt to Cc list
> 
> I will try and boot an sn2 machine first thing tomorrow morning.
> I don't recall dmidecode being broken, but that was quite a while ago.
> I thought the license validation code we used on sn2 used data from the
> dmidecode output.

 # uname -r
3.0.13-0.27-default
 # dmidecode
# dmidecode 2.9
/sys/firmware/efi/systab: SMBIOS entry point missing


It looks like it is broken there as well.  This is running a SLES11SP2
kernel with no local changes.

dmesg show:
DMI not present or invalid.

Thanks,
Robin
--
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/