From: Slava Ovsiienko <viacheslavo@mellanox.com>
To: "Stojaczyk, Dariusz" <dariusz.stojaczyk@intel.com>,
Thomas Monjalon <thomas@monjalon.net>,
"dev@dpdk.org" <dev@dpdk.org>
Cc: "gaetan.rivet@6wind.com" <gaetan.rivet@6wind.com>,
"Zhang, Qi Z" <qi.z.zhang@intel.com>,
"Guo, Jia" <jia.guo@intel.com>
Subject: Re: [dpdk-dev] [PATCH] devargs: do not replace already inserted devargs
Date: Thu, 8 Nov 2018 14:02:10 +0000 [thread overview]
Message-ID: <AM4PR05MB3265BAA096587850F41EEAE6D2C50@AM4PR05MB3265.eurprd05.prod.outlook.com> (raw)
In-Reply-To: <FBE7E039FA50BF47A673AD0BD3CD56A84622B969@HASMSX105.ger.corp.intel.com>
> -----Original Message-----
> From: dev <dev-bounces@dpdk.org> On Behalf Of Stojaczyk, Dariusz
> Sent: Thursday, November 8, 2018 13:25
> To: Thomas Monjalon <thomas@monjalon.net>; dev@dpdk.org
> Cc: gaetan.rivet@6wind.com; Zhang, Qi Z <qi.z.zhang@intel.com>; Guo, Jia
> <jia.guo@intel.com>
> Subject: Re: [dpdk-dev] [PATCH] devargs: do not replace already inserted
> devargs
>
>
> > -----Original Message-----
> > From: Thomas Monjalon [mailto:thomas@monjalon.net]
> > Sent: Thursday, November 8, 2018 12:21 AM
> > To: dev@dpdk.org
> > Cc: gaetan.rivet@6wind.com; Zhang, Qi Z <qi.z.zhang@intel.com>; Guo,
> > Jia <jia.guo@intel.com>; Stojaczyk, Dariusz
> > <dariusz.stojaczyk@intel.com>
> > Subject: [PATCH] devargs: do not replace already inserted devargs
> >
> > The devargs of a device can be replaced by a newly allocated one when
> > trying to probe again the same device (multi-process or multi-ports
> > scenarios). This is breaking some pointer references.
> >
> > It can be avoided by copying the new content, freeing the new devargs,
> > and returning the already inserted pointer.
> >
> > Signed-off-by: Thomas Monjalon <thomas@monjalon.net>
> > ---
>
> Tested-by: Darek Stojaczyk <dariusz.stojaczyk@intel.com>
Attaching the representors caused segmentation fault.
The scenario:
- setup with SRIOV enabled, PF plus N VF
- switchdev mode enabled (have representor for E-Switch ports)
- run testpmd specifying PF only, one device probed and one port is created
- trying to attach representor with port attach command
- segmentation fault occurs within rte_eth_devargs_parse ()
The patch fixes this issue.
Tested-by: Viacheslav Ovsiienko <viacheslavo@mellanox.com>
prev parent reply other threads:[~2018-11-08 14:02 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-11-07 23:21 Thomas Monjalon
2018-11-08 11:25 ` Stojaczyk, Dariusz
2018-11-08 12:26 ` Thomas Monjalon
2018-11-08 12:35 ` Stojaczyk, Dariusz
2018-11-08 12:53 ` Thomas Monjalon
2018-11-08 17:12 ` Zhang, Qi Z
2018-11-11 23:12 ` Thomas Monjalon
2018-11-08 14:02 ` Slava Ovsiienko [this message]
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