All of lore.kernel.org
 help / color / mirror / Atom feed
From: Jan.Glauber@cavium.com (Jan Glauber)
To: linux-arm-kernel@lists.infradead.org
Subject: DMA remote memcpy requests
Date: Fri, 12 Oct 2018 11:03:34 +0000	[thread overview]
Message-ID: <20181012110326.GA6721@hc> (raw)
In-Reply-To: <DM6PR04MB4059742D494D96FC11674A50F2E20@DM6PR04MB4059.namprd04.prod.outlook.com>

On Fri, Oct 12, 2018 at 09:48:01AM +0000, Adam Cottrel wrote:
> Hi Will,
> 
> Thank you for getting back to me.
> 
> > [+Robin and Cavium folks -- it's usually best to cc people as well as  mailing
> > the list]
> I will remember this for future. Thanks for the advice.
> 
> > > I am using the ATH10K on Linux 14.4 with an Arm Cavium processor.
> > > During heavy loading, I am seeing that target initiated DMA requests
> > > are being silently dropped under extreme IO memory pressure and it is
> > > proving very difficult to isolate the root cause.
> >
> > Is this ThunderX 1 or 2 or something else? Can you reproduce the issue with
> > mainline?
> I am using:-
>         model = "Cavium ThunderX CN81XX board";
>         compatible = "cavium,thunder-81xx";
> 

Hi Adam,

what is the exact hardware revision (shown in /proc/cpuinfo) ?

--Jan

  parent reply	other threads:[~2018-10-12 11:03 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-10-11  7:28 DMA remote memcpy requests Adam Cottrel
2018-10-12  9:09 ` Will Deacon
2018-10-12  9:48   ` Adam Cottrel
2018-10-12 10:46     ` Robin Murphy
2018-10-12 11:06       ` Adam Cottrel
2018-10-15 14:34       ` Adam Cottrel
2018-10-15 15:09         ` Jan Glauber
2018-10-15 15:24           ` Adam Cottrel
2018-10-15 15:39             ` Jan Glauber
2018-10-15 15:51               ` Adam Cottrel
2018-10-18 15:36                 ` Adam Cottrel
2018-10-22 14:28                   ` Jan Glauber
2018-10-22 14:39                     ` Adam Cottrel
2018-10-22 15:33                       ` Jan Glauber
     [not found]         ` <DM6PR07MB4923F3328079199090D6D2CA9EFE0@DM6PR07MB4923.namprd07.prod.outlook.com>
2018-10-16 16:52           ` Adam Cottrel
2018-10-16 17:08             ` Robin Murphy
2018-10-12 11:03     ` Jan Glauber [this message]
2018-10-12 11:07       ` Adam Cottrel

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20181012110326.GA6721@hc \
    --to=jan.glauber@cavium.com \
    --cc=linux-arm-kernel@lists.infradead.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.