Re: Crash/trace when starting oprofile

[Pablo Llopis <pllopis@arcos.inf.uc3m.es>]

[-- Attachment #1.1: Type: text/plain, Size: 1657 bytes --]

I tried the patches on a vanilla 3.2.13 kernel (patches applied cleanly
\o/) with success!

In case this is helps anybody in the future, the issue here was that
ubuntu's 3.0.0.x kernels with xen-hypervisor 4.1.1 and oprofile 0.9.6 did
not work properly.
In addition to building a stock kernel, I had to build the hypervisor from
source in order to obtain the xen-syms image corresponding to hypervisor
version 4.1.1, the one you specify with --xen to oprofile. (I did this with
apt-get source in order to ensure that I was obtaining the same version).

Thank you for your help,

Pablo

On Wed, Mar 28, 2012 at 10:59 PM, Pablo Llopis <pllopis@arcos.inf.uc3m.es>wrote:

> Thank you, I will try Michael's patches on a vanilla 3.0 or 3.2 kernel and
> report back.
> However, on first sight the patches enable profiling on unprivileged
> guests (although the author calls it passive profiling, which as far as I
> know is the opposite), and I am trying to do unprivileged dom0 profiling.
> Lets hope this helps!
>
>
> On Wed, Mar 28, 2012 at 5:43 PM, Wei Liu <wei.liu2@citrix.com> wrote:
>
>> On Wed, 2012-03-28 at 15:55 +0100, Pablo Llopis wrote:
>> > Hello Xen developers,
>> >
>> >
>> > I sent a similar message to xen-users about a week ago, did not obtain
>> > any response and only now realized that I should have sent this here
>> > instead (http://xenoprof.sourceforge.net/ says to write to this list).
>> > Apologies if you see this message twice.
>> >
>>
>> There are some patches floating around on xen-devel:
>>
>> http://marc.info/?l=xen-devel&m=132779518918042&w=2
>> http://marc.info/?l=xen-devel&m=132708552318073&w=2
>>
>>
>>
>> Wei.
>>
>>
>>
>

[-- Attachment #1.2: Type: text/html, Size: 2607 bytes --]

[-- Attachment #2: Type: text/plain, Size: 126 bytes --]

_______________________________________________
Xen-devel mailing list
Xen-devel@lists.xen.org
http://lists.xen.org/xen-devel