linux-kernel - Re: [PATCH] turbostat, servers do not support uncore power register

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] [day] [month] [year] [list]

Message-ID: <52DBD150.3050205@redhat.com>
Date:	Sun, 19 Jan 2014 08:21:20 -0500
From:	Prarit Bhargava <prarit@...hat.com>
To:	Len Brown <lenb@...nel.org>
CC:	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Len Brown <len.brown@...el.com>,
	"Rafael J. Wysocki" <rafael.j.wysocki@...el.com>,
	Josh Triplett <josh@...htriplett.org>,
	Kristen Carlson Accardi <kristen@...ux.intel.com>
Subject: Re: [PATCH] turbostat, servers do not support uncore power register



On 01/18/2014 10:50 PM, Len Brown wrote:
> On Thu, Dec 19, 2013 at 7:27 PM, Prarit Bhargava <prarit@...hat.com> wrote:
>> From the Intel Software Developer's Manual section 14.7.4,
>>
>> "For server platforms, PP1 domain is not supported, but its PP0 domain
>> supports the MSR_PP0_PERF_STATUS interface."
>>
>> When I run 'turbostat ls' I see the following error:
>>
>> /dev/cpu/0/msr offset 0x641 read failed
> 
> Let me know if you see this when running turbostat v3.6 or later.
> you can find  that version in the linux-next tree.
> 

Len, looks like v3.6 works -- I'll do some additional testing to confirm but
AFAICT it does work on the affected systems.

P.

> thanks,
> Len Brown, Intel Open Source Technology Center
--
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/