From: Andi Kleen <andi@firstfloor.org>
To: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Cc: Andi Kleen <andi@firstfloor.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: Re: PNP PS/2 probing racy?
Date: Thu, 28 Jan 2010 17:22:48 +0100 [thread overview]
Message-ID: <20100128162248.GF14636@basil.fritz.box> (raw)
In-Reply-To: <DE24773B-F00A-4866-8E88-AE63E6135743@gmail.com>
On Thu, Jan 28, 2010 at 07:57:47AM -0800, Dmitry Torokhov wrote:
>> 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.
>>
>
> Are you using KVM with that box by any chance?
Yes, it uses a KVM, but the console was always on it.
-Andi
--
ak@linux.intel.com -- Speaking for myself only.
next prev parent reply other threads:[~2010-01-28 16:22 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-01-28 13:54 PNP PS/2 probing racy? Andi Kleen
2010-01-28 15:57 ` Dmitry Torokhov
2010-01-28 16:22 ` Andi Kleen [this message]
2010-01-29 6:24 ` Dmitry Torokhov
2010-01-29 12:24 ` Andi Kleen
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