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From: Slava Ovsiienko <viacheslavo@mellanox.com>
To: Olivier Matz <olivier.matz@6wind.com>
CC: "dev@dpdk.org" <dev@dpdk.org>, Matan Azrad <matan@mellanox.com>, Raslan
Darawsheh <rasland@mellanox.com>, Ori Kam <orika@mellanox.com>, Shahaf Shuler
<shahafs@mellanox.com>, "stephen@networkplumber.org"
<stephen@networkplumber.org>, "thomas@mellanox.net" <thomas@mellanox.net>
Thread-Topic: [PATCH] app/test: add test for mbuf with pinned external buffer
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Date: Thu, 6 Feb 2020 09:51:49 +0000
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Subject: Re: [dpdk-dev] [PATCH] app/test: add test for mbuf with pinned
external buffer
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I checked with 2M huge pages - fork() works OK on my host, does not work ov=
er 1G.
RH7.2/3.10.327. Will try other kernels.
With best regards, Slava
> -----Original Message-----
> From: Slava Ovsiienko
> Sent: Thursday, February 6, 2020 10:25
> To: Olivier Matz <olivier.matz@6wind.com>
> Cc: dev@dpdk.org; Matan Azrad <matan@mellanox.com>; Raslan Darawsheh
> <rasland@mellanox.com>; Ori Kam <orika@mellanox.com>; Shahaf Shuler
> <shahafs@mellanox.com>; stephen@networkplumber.org;
> thomas@mellanox.net
> Subject: RE: [PATCH] app/test: add test for mbuf with pinned external buf=
fer
>=20
> Olivier, thanks for the reviewing.
> I'll remove the comment and send the v2.
> I use 1G huge pages, will retest over 2M and continue finding why my host
> fails.
>=20
> With best regards, Slava
>=20
> > -----Original Message-----
> > From: Olivier Matz <olivier.matz@6wind.com>
> > Sent: Thursday, February 6, 2020 10:17
> > To: Slava Ovsiienko <viacheslavo@mellanox.com>
> > Cc: dev@dpdk.org; Matan Azrad <matan@mellanox.com>; Raslan
> Darawsheh
> > <rasland@mellanox.com>; Ori Kam <orika@mellanox.com>; Shahaf Shuler
> > <shahafs@mellanox.com>; stephen@networkplumber.org;
> > thomas@mellanox.net
> > Subject: Re: [PATCH] app/test: add test for mbuf with pinned external
> > buffer
> >
> > Hi,
> >
> > On Fri, Jan 24, 2020 at 08:25:18PM +0000, Viacheslav Ovsiienko wrote:
> > > This patch adds unit test for the mbufs allocated from the special
> > > pool with pinned external data buffers.
> > >
> > > The pinned buffer mbufs are tested in the same way as regular ones
> > > with taking into account some specifics of cloning/attaching.
> > >
> > > Signed-off-by: Viacheslav Ovsiienko <viacheslavo@mellanox.com>
> >
> > Looks good to me, you can add my ack in the v2, once we understand the
> > issue with verify_mbuf_check_panics().
> >
> > > @@ -1199,10 +1212,11 @@
> > > buf =3D rte_pktmbuf_alloc(pktmbuf_pool);
> > > if (buf =3D=3D NULL)
> > > return -1;
> > > + /*
> > > printf("Checking good mbuf initially\n");
> > > if (verify_mbuf_check_panics(buf) !=3D -1)
> > > return -1;
> > > -
> > > + */
> > > printf("Now checking for error conditions\n");
> > >
> > > if (verify_mbuf_check_panics(NULL)) { @@ -2411,6 +2425,120 @@
> > struct
> > > test_case {
> >
> > Note: on my platform, it still works if I remove this comment.
> >
> > Regards,
> > Olivier