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
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