From mboxrd@z Thu Jan  1 00:00:00 1970
From: Marc Sune <marc.sune-kpkqNMk1I7M@public.gmane.org>
Subject: Re: Valgrind and DPDK - does it work ?
Date: Fri, 07 Nov 2014 01:29:40 +0100
Message-ID: <545C1274.8020708@bisdn.de>
References: <007501cfd1a3$573fff00$05bffd00$@xenanetworks.com>
 <545C10D9.9020902@bisdn.de>
Mime-Version: 1.0
Content-Type: text/plain; charset=windows-1252; format=flowed
Content-Transfer-Encoding: quoted-printable
To: dev-VfR2kkLFssw@public.gmane.org
Return-path: <dev-bounces-VfR2kkLFssw@public.gmane.org>
In-Reply-To: <545C10D9.9020902-kpkqNMk1I7M@public.gmane.org>
List-Id: patches and discussions about DPDK <dev.dpdk.org>
List-Unsubscribe: <http://dpdk.org/ml/options/dev>,
 <mailto:dev-request-VfR2kkLFssw@public.gmane.org?subject=unsubscribe>
List-Archive: <http://dpdk.org/ml/archives/dev/>
List-Post: <mailto:dev-VfR2kkLFssw@public.gmane.org>
List-Help: <mailto:dev-request-VfR2kkLFssw@public.gmane.org?subject=help>
List-Subscribe: <http://dpdk.org/ml/listinfo/dev>,
 <mailto:dev-request-VfR2kkLFssw@public.gmane.org?subject=subscribe>
Errors-To: dev-bounces-VfR2kkLFssw@public.gmane.org
Sender: "dev" <dev-bounces-VfR2kkLFssw@public.gmane.org>

On 07/11/14 01:22, Marc Sune wrote:
> On 16/09/14 13:42, Morten Jagd Christensen wrote:
>> Hi all,
>>
>>
>> I am interested to hear if anyone here have had any luck running=20
>> Valgrind on
>> DPDK applications?
>>
>>
>> I tried to use this some time ago, but Valgrind does not seem to work
>> together with hugepages =96 or
>>
>> I am doing something wrong ;-)
>>
>>
>> I would like to hear form anyone having success or failure with=20
>> Valgrind and
>> DPDK.
>
> Found some time to have a close look. I also wanted to check a DPDK=20
> app against valgrind. It works!
>
> I downloaded and compiled valgrind from sources (3.10.0) and applied=20
> (manually) this patch:
>
> https://bugs.kde.org/attachment.cgi?id=3D85950&action=3Dedit
>
> (Applied around line 2216)
>
> From this post:
>
> http://valgrind.10908.n7.nabble.com/mpich-unable-to-munmap-hugepages-td=
49150.html=20
>
>
> Happy debugging
> Marc
>
Btw, I will debug closer my DPDK application, but a quick start and stop=20
shows already some warnings:

=3D=3D27534=3D=3D Thread 2:
=3D=3D27534=3D=3D Syscall param epoll_ctl(event) points to uninitialised =
byte(s)
=3D=3D27534=3D=3D    at 0x65E6DBA: epoll_ctl (syscall-template.S:82)
=3D=3D27534=3D=3D    by 0x58DAEC: eal_intr_thread_main (in=20
/home/marc/xdpd/build/src/xdpd/xdpd)
=3D=3D27534=3D=3D    by 0x5DD7B4F: start_thread (pthread_create.c:304)
=3D=3D27534=3D=3D    by 0x65E67BC: clone (clone.S:112)
=3D=3D27534=3D=3D  Address 0x7717d78 is on thread 2's stack
=3D=3D27534=3D=3D  in frame #1, created by eal_intr_thread_main (???)
=3D=3D27534=3D=3D

Regards
Marc