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Re: 2.4.16 success on Indy (was Re: 2.4.16 success on Decstation 5000/15

To: Ladislav Michl <ladislav.michl@hlubocky.del.cz>
Subject: Re: 2.4.16 success on Indy (was Re: 2.4.16 success on Decstation 5000/150)
From: Florian Lohoff <flo@rfc822.org>
Date: Mon, 3 Dec 2001 19:25:43 +0100
Cc: Ian Chilton <ian@ichilton.co.uk>, linux-mips@oss.sgi.com
In-reply-to: <Pine.LNX.4.21.0112031726021.2278-100000@hlubocky.del.cz>
Organization: rfc822 - pure communication
References: <20011203161921.B30391@woody.ichilton.co.uk> <Pine.LNX.4.21.0112031726021.2278-100000@hlubocky.del.cz>
Sender: owner-linux-mips@oss.sgi.com
User-agent: Mutt/1.3.23i
On Mon, Dec 03, 2001 at 05:34:40PM +0100, Ladislav Michl wrote:
> sure :-) IRQ 8 is FIFO full and was never used (and to be honest, i don't
> know what that irq is used for). before Wed, 21 Nov 2001 17:49:32 +0100
> it was General purpose local interrupt - this one was also never
> used. see include/asm-mips/sgi/sgint23.h for more info.
> 
> i have no clue, why you're getting this interrupt. it works pretty well
> for me...

Ok - the IRQ8 get enabled because i have CONFIG_RTC set and in
drivers/char/rtc.c around line 730 it requests:

if(request_irq(RTC_IRQ, rtc_interrupt, SA_INTERRUPT, "rtc", NULL))

Immediatly afterwards the massive ammount of IRQs. With 100Hz and 160
Chars across the screen - I would expect 1-2 lines/s on the screen.
Instead the screen fills up within tens of seconds which seems to me
like non acked IRQ.

Flo
-- 
Florian Lohoff                  flo@rfc822.org             +49-5201-669912
Nine nineth on september the 9th              Welcome to the new billenium

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