From: Tejun Heo <htejun@gmail.com>
To: Chuck Ebbert <cebbert@redhat.com>
Cc: IDE/ATA development list <linux-ide@vger.kernel.org>
Subject: Re: AHCI driver prints "D2H reg with I during NCQ" message, what is it?
Date: Sat, 14 Jul 2007 13:12:22 +0900 [thread overview]
Message-ID: <46984D26.5080807@gmail.com> (raw)
In-Reply-To: <46979A3A.2090005@redhat.com>
Chuck Ebbert wrote:
> I see this on boot with kernels 2.6.22.1 and 2.6.20.15:
>
> ata1: D2H reg with I during NCQ, this message won't be printed again
>
> But I can't find anything that tells me what it means, or whether
> it's a real problem.
That's your firmware transmitting unnecessary D2H Reg FIS during NCQ
command phase. It's minor protocol violation which can be ignored. No
need to worry.
--
tejun
prev parent reply other threads:[~2007-07-14 4:12 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-07-13 15:28 AHCI driver prints "D2H reg with I during NCQ" message, what is it? Chuck Ebbert
2007-07-14 4:12 ` Tejun Heo [this message]
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=46984D26.5080807@gmail.com \
--to=htejun@gmail.com \
--cc=cebbert@redhat.com \
--cc=linux-ide@vger.kernel.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 a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).