Subject: Re: AS1200 stray IRQ messages
To: Julian Coleman <firstname.lastname@example.org>
From: Manuel Bouyer <email@example.com>
Date: 06/17/2004 22:09:35
On Thu, Jun 17, 2004 at 09:44:41AM +0100, Julian Coleman wrote:
> > From what I remember, this mean the kenrel got an interrupt on this line,
> > but no driver claimed it.
> > But I may be wrong.
> That's what I thought. However, on my 164LX, dmesg says:
> cmdide0: CMD Technology PCI0646 (rev. 0x01)
> cmdide0: bus-master DMA support present
> cmdide0: primary channel wired to compatibility mode
> cmdide0: primary channel interrupting at isa irq 14
> lpt0 at isa0 port 0x3bc-0x3bf irq 7
> but I see:
> stray isa irq 14
> during boot, and
> stray isa irq 7
> when I connect a printer.
May be because the associated driver didn't claim the interrupt (e.g. the
kernel gets an IRQ 7 and the lpt driver says "it's not for me, I'm not
waiting for an interrupt)
Manuel Bouyer <firstname.lastname@example.org>
NetBSD: 26 ans d'experience feront toujours la difference