From mboxrd@z Thu Jan 1 00:00:00 1970 From: Andrew Evans Subject: Re: Re: xenoprof: operation 9 failed for dom0 (status: -1) Date: Mon, 16 Nov 2009 16:04:04 -0800 Message-ID: <4B01E874.1080301@yahoo-inc.com> References: <8d2cca230911051715n5b9c1050g12bdf49c80b59053@mail.gmail.com> <8d2cca230911060927g1633a68dq8d7c1f63076475ed@mail.gmail.com> Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============1169725054==" Return-path: In-Reply-To: <8d2cca230911060927g1633a68dq8d7c1f63076475ed@mail.gmail.com> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xensource.com Errors-To: xen-devel-bounces@lists.xensource.com To: "Santos, Jose Renato G" Cc: Xen-devel , Dante Cinco List-Id: xen-devel@lists.xenproject.org This is a multi-part message in MIME format. --===============1169725054== Content-Type: multipart/alternative; boundary="------------020501080107020404070704" This is a multi-part message in MIME format. --------------020501080107020404070704 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit I too am experiencing this problem. My setup is much less bleeding-edge, however: RHEL 5.3 dom0 (2.6.18-128.el5xen kernel) xen-3.3.1 from gitco oprofile-0.9.3-18.el5 Same error message in Xen dmesg ring buffer. -Andrew On 11/06/2009 09:27 AM, Dante Cinco wrote: > I initially tried OProfile 0.9.3 with the oprofile-0.9.3-xen-r2.patch > but when I tried running "opcontrol --status" in dom0, I got an error > message about cpu_set or cpu_type and prompted to use a newer version > of OProfile (I think OProfile 0.9.3 doesn't recognized the Core i7 CPU > I'm using). So I downloaded OProfile 0.9.5 and manually applied the > same patch and it seems to work except for the problems I described in > my previous email. I'm also using Jeremy's latest pvops 2.6.31.5 with > Dulloor's xenoprof.patch. I'm also using the patched OProfile 0.9.5 in > domU (Linux 2.6.30.1). > > I realize I'm using a lot of new stuff like pvops 2.6.31.5 (with Xen > 3.5-unstable changeset 20330) and OProfile 0.9.5 but I thought I'd > check with you to see if the problems I'm having sound familiar. > > Thanks. > > Dante > > On Thu, Nov 5, 2009 at 6:05 PM, Santos, Jose Renato G > > wrote: > > What version of OProfile are you using? > Did you apply the Xen patch available in > http://xenoprof.sourceforge.net ? > Renato > > ------------------------------------------------------------------------ > *From:* Dante Cinco [mailto:dantecinco@gmail.com > ] > *Sent:* Thursday, November 05, 2009 5:16 PM > *To:* Santos, Jose Renato G > *Cc:* Xen-devel > *Subject:* xenoprof: operation 9 failed for dom0 (status: -1) > Renato, > > When I tried running "opcontrol --start" (after previously > running "opcontrol --start-daemon") in dom0, I get this error > message: > > /usr/local/bin/opcontrol: line 1639: echo: write error: > Operation not permitted > > and this message in the Xen console: > > (XEN) xenoprof: operation 9 failed for dom 0 (status : -1) > > It looks like opcontrol is trying to do this: echo 1 > > /dev/oprofile/enable > > and it is failing. "operation 9" maps to XENOPROF_start which > is consistent with running "opcontrol --start." At first, I > ignored the error because it gave the indication "Profiler > running" but after I ran "opcontrol --shutdown" followed by > "opreport" in dom0, I got this error message: > > error: no sample files found: profile specification too strict ? > > Do you know why the write error is occurring? I followed the > steps in xenoprof_tutorial.ppt. > > Dante > > > > _______________________________________________ > Xen-devel mailing list > Xen-devel@lists.xensource.com > http://lists.xensource.com/xen-devel > --------------020501080107020404070704 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit I too am experiencing this problem. My setup is much less bleeding-edge, however:

RHEL 5.3 dom0 (2.6.18-128.el5xen kernel)
xen-3.3.1 from gitco
oprofile-0.9.3-18.el5

Same error message in Xen dmesg ring buffer.

-Andrew

On 11/06/2009 09:27 AM, Dante Cinco wrote:
I initially tried OProfile 0.9.3 with the oprofile-0.9.3-xen-r2.patch but when I tried running "opcontrol --status" in dom0, I got an error message about cpu_set or cpu_type and prompted to use a newer version of OProfile (I think OProfile 0.9.3 doesn't recognized the Core i7 CPU I'm using). So I downloaded OProfile 0.9.5 and manually applied the same patch and it seems to work except for the problems I described in my previous email. I'm also using Jeremy's latest pvops 2.6.31.5 with Dulloor's xenoprof.patch. I'm also using the patched OProfile 0.9.5 in domU (Linux 2.6.30.1).

I realize I'm using a lot of new stuff like pvops 2.6.31.5 (with Xen 3.5-unstable changeset 20330) and OProfile 0.9.5 but I thought I'd check with you to see if the problems I'm having sound familiar.

Thanks.

Dante

On Thu, Nov 5, 2009 at 6:05 PM, Santos, Jose Renato G <joserenato.santos@hp.com> wrote:
What version of OProfile are you using?
Did you apply the Xen patch available in http://xenoprof.sourceforge.net ?
 
Renato
From: Dante Cinco [mailto:dantecinco@gmail.com]
Sent: Thursday, November 05, 2009 5:16 PM
To: Santos, Jose Renato G
Cc: Xen-devel
Subject: xenoprof: operation 9 failed for dom0 (status: -1)
Renato,

When I tried running "opcontrol --start" (after previously running "opcontrol --start-daemon") in dom0, I get this error message:

/usr/local/bin/opcontrol: line 1639: echo: write error: Operation not permitted

and this message in the Xen console:

(XEN) xenoprof: operation 9 failed for dom 0 (status : -1)

It looks like opcontrol is trying to do this: echo 1 > /dev/oprofile/enable

and it is failing. "operation 9" maps to XENOPROF_start which is consistent with running "opcontrol --start." At first, I ignored the error because it gave the indication "Profiler running" but after I ran "opcontrol --shutdown" followed by "opreport" in dom0, I got this error message:

error: no sample files found: profile specification too strict ?

Do you know why the write error is occurring? I followed the steps in xenoprof_tutorial.ppt.

Dante


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