From: Andi Kleen <andi@firstfloor.org>
To: dmitry.torokhov@gmail.com, linux-kernel@vger.kernel.org
Subject: PNP PS/2 probing racy?
Date: Thu, 28 Jan 2010 14:54:05 +0100 [thread overview]
Message-ID: <20100128135405.GA28931@basil.fritz.box> (raw)
Hi,
I noticed that on one test system of machine when booting the same
kernel I get:
PNP: No PS/2 controller found. Probing ports directly.
serio: i8042 KBD port at 0x60,0x64 irq 1
serio: i8042 AUX port at 0x60,0x64 irq 12
and sometimes on another boot
PNP: PS/2 Controller [PNP0303:PS2K,PNP0f03:PS2M] at 0x60,0x64 irq 1,12
Since I presume the BIOS does not change, is it possible the Linux
procedure for this PNP probe is racy? I haven't checked the code so far.
Full boot logs for both cases:
http://halobates.de/config/dmesg-pnprace-1
http://halobates.de/config/dmesg-pnprace-2
-Andi
--
ak@linux.intel.com -- Speaking for myself only.
next reply other threads:[~2010-01-28 13:54 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-01-28 13:54 Andi Kleen [this message]
2010-01-28 15:57 ` PNP PS/2 probing racy? Dmitry Torokhov
2010-01-28 16:22 ` Andi Kleen
2010-01-29 6:24 ` Dmitry Torokhov
2010-01-29 12:24 ` Andi Kleen
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=20100128135405.GA28931@basil.fritz.box \
--to=andi@firstfloor.org \
--cc=dmitry.torokhov@gmail.com \
--cc=linux-kernel@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 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.