From: Bastian Blank <waldi@debian.org>
To: Dan Williams <dan.j.williams@intel.com>
Cc: Jonathan Nieder <jrnieder@gmail.com>,
xen-devel@lists.xensource.com,
pkg-xen-devel@lists.alioth.debian.org,
Maciej Sosnowski <maciej.sosnowski@intel.com>,
linux-kernel@vger.kernel.org, William Dauchy <wdauchy@gmail.com>,
Konrad Rzeszutek Wilk <konrad@darnok.org>
Subject: Re: [Pkg-xen-devel] ioatdma: Boot process hangs then reboots when using Xen + Linux 3.2
Date: Fri, 2 Mar 2012 17:21:59 +0100 [thread overview]
Message-ID: <20120302162159.GB31683@wavehammer.waldi.eu.org> (raw)
In-Reply-To: <CABE8wwt8Lngy=-iL7QGCofy0nW5-q4VJDS_ovEr96fGdYm72ew@mail.gmail.com>
On Thu, Mar 01, 2012 at 10:42:44PM -0800, Dan Williams wrote:
> WARN_ON may work, but then kernel may be subject random hangs from missed
> i/o completions.
Why is that? Currently it just dies if was triggered via interrupt and
for some reason no active descriptor was found.
> Is xen32 using vt-d?
Yes. Xen can use VT-D.
> Just wondering if writes from ioat
> device are getting misdirected.
How do VT-D and ioat interact?
Bastian
--
Too much of anything, even love, isn't necessarily a good thing.
-- Kirk, "The Trouble with Tribbles", stardate 4525.6
next prev parent reply other threads:[~2012-03-02 16:28 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <CAJ75kXZ-2vWZpG7Uz3firg6ew4y_DdorXotkAkUGSK0GWLMUQQ@mail.gmail.com>
[not found] ` <20120127144737.GA27750@andromeda.dapyr.net>
[not found] ` <20120219223125.GA820@burratino>
[not found] ` <20120220181618.GD17566@burratino>
[not found] ` <4F4891B8.9050008@goirand.fr>
2012-03-02 5:57 ` Jonathan Nieder
[not found] ` <CABE8wwt8Lngy=-iL7QGCofy0nW5-q4VJDS_ovEr96fGdYm72ew@mail.gmail.com>
2012-03-02 16:21 ` Bastian Blank [this message]
2012-03-02 16:44 ` [Pkg-xen-devel] " Dan Williams
2012-03-02 17:57 ` Bastian Blank
2012-03-02 19:31 ` Dan Williams
2012-03-02 20:08 ` Bastian Blank
2012-03-02 20:16 ` Dan Williams
2012-03-02 20:56 ` Bastian Blank
2012-03-02 21:17 ` Dan Williams
2012-03-05 15:26 ` Thomas Goirand
2012-03-05 15:38 ` Dan Williams
2012-03-06 9:20 ` Thomas Goirand
2012-03-06 10:33 ` Bastian Blank
2012-03-06 14:14 ` Dan Williams
2012-03-06 14:39 ` Ian Campbell
2012-03-13 16:49 ` [Xen-devel] " Konrad Rzeszutek Wilk
2012-03-11 22:06 ` Jonathan Nieder
2012-03-23 23:55 ` Dan Williams
2012-03-24 1:29 ` William Dauchy
2012-03-24 2:25 ` William Dauchy
2012-03-24 3:34 ` Williams, Dan J
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=20120302162159.GB31683@wavehammer.waldi.eu.org \
--to=waldi@debian.org \
--cc=dan.j.williams@intel.com \
--cc=jrnieder@gmail.com \
--cc=konrad@darnok.org \
--cc=linux-kernel@vger.kernel.org \
--cc=maciej.sosnowski@intel.com \
--cc=pkg-xen-devel@lists.alioth.debian.org \
--cc=wdauchy@gmail.com \
--cc=xen-devel@lists.xensource.com \
/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 a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox
all inboxes | Powered by JetHome®