From: Arjan van de Ven <arjan@linux.intel.com>
To: Peter Zijlstra <peterz@infradead.org>
Cc: Ingo Molnar <mingo@elte.hu>,
Stephane Eranian <eranian@google.com>,
"robert.richter" <robert.richter@amd.com>,
Linus Torvalds <torvalds@linux-foundation.org>,
LKML <linux-kernel@vger.kernel.org>,
"H. Peter Anvin" <hpa@linux.kernel.org>
Subject: Re: [PATCH] perf, x86: Disable perf if the BIOS got its grubby paws on the PMU
Date: Fri, 03 Sep 2010 06:53:59 -0700 [thread overview]
Message-ID: <4C80FDF7.1080106@linux.intel.com> (raw)
In-Reply-To: <1283505227.1783.224.camel@laptop>
On 9/3/2010 2:13 AM, Peter Zijlstra wrote:
>
> +static void print_BIOS_fail(void)
> +{
> + printk(KERN_ERR "\n");
> + printk(KERN_ERR "=============================================\n");
> + printk(KERN_ERR "It appears the BIOS is actively using the PMU\n");
> + printk(KERN_ERR "this avoids Linux from using it, please de- \n");
> + printk(KERN_ERR "activate this BIOS feature or request a BIOS \n");
> + printk(KERN_ERR "update from your vendor. \n");
> + printk(KERN_ERR "=============================================\n");
> +
> + memset(&x86_pmu, 0, sizeof(x86_pmu));
> +}
> +
>
tell us how you really feel :-)
do you want to add a phone number of the support line of the vendor
(based on DMI data of course) ?
next prev parent reply other threads:[~2010-09-03 13:54 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-09-03 9:13 [PATCH] perf, x86: Disable perf if the BIOS got its grubby paws on the PMU Peter Zijlstra
2010-09-03 13:53 ` Arjan van de Ven [this message]
2010-09-03 14:32 ` Matt Domsch
2010-09-03 14:46 ` Peter Zijlstra
2010-09-07 15:15 ` Robert Richter
2010-09-07 16:51 ` Robert Richter
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=4C80FDF7.1080106@linux.intel.com \
--to=arjan@linux.intel.com \
--cc=eranian@google.com \
--cc=hpa@linux.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=mingo@elte.hu \
--cc=peterz@infradead.org \
--cc=robert.richter@amd.com \
--cc=torvalds@linux-foundation.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.