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From: Peter Horton <phorton@bitbox.co.uk>
To: "Maciej W. Rozycki" <macro@ds2.pg.gda.pl>
Cc: linux-mips@linux-mips.org
Subject: Re: IRQ problem on cobalt / 2.6.6
Date: Wed, 19 May 2004 13:57:22 +0100	[thread overview]
Message-ID: <40AB59B2.5090005@bitbox.co.uk> (raw)
In-Reply-To: <Pine.LNX.4.55.0405191318500.22609@jurand.ds.pg.gda.pl>

Maciej W. Rozycki wrote:

>On Tue, 18 May 2004, Kieran Fulke wrote:
>
>  
>
>>alas, no joy.
>>    
>>
>[...]
>  
>
>>VP_IDE: VIA vt82c586a (rev 27) IDE UDMA33 controller on pci0000:00:09.1
>>    ide0: BM-DMA at 0x1420-0x1427, BIOS settings: hda:pio, hdb:pio
>>    ide1: BM-DMA at 0x1428-0x142f, BIOS settings: hdc:pio, hdd:pio
>>spurious 8259A interrupt: IRQ9.
>>    
>>
>
> Hmm, interesting.  As the 8259A can only signal IRQ7 and possibly IRQ15
>as spurious interrupts, this smells like a bug in 8259A handlers,
>regardless of system-specific problems you have.
>
>  
>
We were getting interrupt 23 and calling do_IRQ() with a value of 9 (a 
bug, obviously). Interrupt 9 is masked so we get a "spurious 8259A 
interrupt" message.

P.

  reply	other threads:[~2004-05-19 12:57 UTC|newest]

Thread overview: 27+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2004-05-13 18:30 IRQ problem on cobalt / 2.6.6 Kieran Fulke
2004-05-14  7:43 ` Peter Horton
2004-05-16 11:36   ` Kieran Fulke
2004-05-16 15:21     ` Johannes Stezenbach
2004-05-16 15:21       ` Johannes Stezenbach
2004-05-16 17:04       ` Ralf Baechle
2004-05-16 17:11         ` Kieran Fulke
2004-05-16 17:21         ` Johannes Stezenbach
2004-05-16 18:04           ` Kieran Fulke
2004-05-17  8:40         ` Peter Horton
2004-05-17 11:46           ` Kieran Fulke
2004-05-17 11:57             ` Peter Horton
2004-05-17 12:04               ` Kieran Fulke
2004-05-17 12:20                 ` Peter Horton
2004-05-17 15:07 ` Stuart Longland
2004-05-18  7:34 ` Peter Horton
2004-05-18 17:39   ` Kieran Fulke
2004-05-18 20:59   ` Kieran Fulke
2004-05-18 21:09     ` Kieran Fulke
2004-05-18 21:12     ` Peter Horton
     [not found]       ` <20040518211810.GA29636@getyour.pawsoff.org>
2004-05-18 21:19         ` Kieran Fulke
2004-05-18 21:46           ` Kumba
2004-05-18 21:38         ` Peter Horton
2004-05-18 22:02           ` Kieran Fulke
2004-05-19 11:23     ` Maciej W. Rozycki
2004-05-19 12:57       ` Peter Horton [this message]
  -- strict thread matches above, loose matches on Subject: below --
2004-05-16 17:37 Kieran Fulke

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