From: "Tan, Jianfeng" <jianfeng.tan@intel.com>
To: "Yigit, Ferruh" <ferruh.yigit@intel.com>,
Alejandro Lucero <alejandro.lucero@netronome.com>
Cc: Gregory Etelson <gregory@weka.io>, dev <dev@dpdk.org>,
"users@dpdk.org" <users@dpdk.org>
Subject: Re: [dpdk-users] [dpdk-dev] IGB_UIO: PCI Resources Management
Date: Fri, 13 Jan 2017 01:51:35 +0000 [thread overview]
Message-ID: <ED26CBA2FAD1BF48A8719AEF02201E3651111AE6@SHSMSX103.ccr.corp.intel.com> (raw)
In-Reply-To: <e1507eab-1604-b300-8f86-5d5ac2c98ee5@intel.com>
> -----Original Message-----
> From: users [mailto:users-bounces@dpdk.org] On Behalf Of Ferruh Yigit
> Sent: Thursday, January 12, 2017 8:22 PM
> To: Alejandro Lucero
> Cc: Gregory Etelson; dev; users@dpdk.org
> Subject: Re: [dpdk-users] [dpdk-dev] IGB_UIO: PCI Resources Management
>
> On 1/12/2017 12:12 PM, Alejandro Lucero wrote:
> >
> >
> > On Thu, Jan 12, 2017 at 11:55 AM, Ferruh Yigit <ferruh.yigit@intel.com
> > <mailto:ferruh.yigit@intel.com>> wrote:
> >
> > On 12/9/2016 8:54 AM, Gregory Etelson wrote:
> > > Hello,
> > >
> > > IGB_UIO driver does not close port PCI activities after DPDK process
> exits.
> > > DPDK API provides rte_eth_dev_close() to manage port PCI,
> > > but it can be skipped if process receives SIGKILL signal
> >
> > I guess I understand the problem.
> >
> >
> > This is a known problem, but it is not just a UIO problem, and this
> > patch does not solve it, maybe it just solves part of it.
> >
> > In fact, a DPDK program crashing could imply the NIC DMAing after that
> > and after that memory was assigned to another program.
>
> Yes.
> Can there be a way to stop NIC DMA, (or prevent it access to mem
> anymore) when app crashes?
> I think that is what this patch is looking for.
If I understand it correctly, you are looking for this patch?
http://dpdk.org/dev/patchwork/patch/17495/
next prev parent reply other threads:[~2017-01-13 1:51 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-12-09 8:54 [dpdk-users] " Gregory Etelson
2017-01-12 11:55 ` Ferruh Yigit
2017-01-12 12:12 ` [dpdk-users] [dpdk-dev] " Alejandro Lucero
2017-01-12 12:22 ` Ferruh Yigit
2017-01-12 12:58 ` Alejandro Lucero
2017-01-13 1:51 ` Tan, Jianfeng [this message]
2017-01-13 2:04 ` Ferruh Yigit
2017-01-13 5:33 ` Tan, Jianfeng
2017-01-13 11:10 ` Alejandro Lucero
2017-01-19 16:36 ` Ferruh Yigit
2017-01-19 20:33 ` Alejandro Lucero
2017-01-19 15:59 ` Ferruh Yigit
2017-01-19 16:09 ` George Prekas
2017-01-20 5:09 ` Tan, Jianfeng
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