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From: Ingo Molnar <mingo@elte.hu>
To: Vegard Nossum <vegard.nossum@gmail.com>
Cc: linux-kernel@vger.kernel.org, Thomas Gleixner <tglx@linutronix.de>
Subject: Re: IRQ handler type mismatch for IRQ 7
Date: Mon, 11 Jun 2007 15:11:47 +0200	[thread overview]
Message-ID: <20070611131147.GA31307@elte.hu> (raw)
In-Reply-To: <19f34abd0706110607u6cf889dci9b8d48494cb40be0@mail.gmail.com>


* Vegard Nossum <vegard.nossum@gmail.com> wrote:

> I receive this on a fresh install of Fedora 7 (x86_64) running 
> 2.6.21-1.3194.fc7, and wonder if it's something to worry about:
> 
> IRQ handler type mismatch for IRQ 7
> current handler: parport0

> [<ffffffff802adf6d>] request_irq+0xd7/0xfd
> [<ffffffff8039a583>] serial8250_startup+0x423/0x56f

so both parport and serial is on the same IRQ: #7, but the parport one 
does not support shared interrupt lines (IRQF_SHARED). You can probably 
change the mapping in the BIOS (change the serial one to say IRQ#3 or 
IRQ#4). I suspect you dont have any real parallel port hardware 
attached? (and probably no serial port hardware either?) So you can 
safely ignore this.

	Ingo

  reply	other threads:[~2007-06-11 13:12 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-06-11 13:07 Vegard Nossum
2007-06-11 13:11 ` Ingo Molnar [this message]
2007-06-11 13:19   ` Vegard Nossum

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