Re: odd irq routing errors?

Re: odd irq routing errors?

[Matthew Harrell]

So is this problem listed below the same as the one I'm having on my laptop?
I cannot boot any 2.5.6? kernels with acpi turned on since once acpid starts
the laptop slows down horrendously, many programs seg fault or the scripts
give bizarre results, and the ide controller spits out numerous messages.  Is
there anything I can do to fix this problem?  



: Faye Pearson writes:
: > This is for the IRQ allocation gurus.
: > More information on http://dude.noc.clara.net/~faye/
: >
: > All refer to the IDE controller...
: >
: > PCI: Ignoring BAR0-3 of IDE controller 00:1f.1
: >  pci_irq-0297 [09] acpi_pci_irq_derive   : Unable to derive IRQ for
: >  device 00:1f.1
: > PCI: No IRQ known for interrupt pin A of device 00:1f.1 - using IRQ 255
: > ICH3M: IDE controller at PCI slot 00:1f.1
: > PCI: Enabling device 00:1f.1 (0005 -> 0007)
: >  pci_irq-0297 [12] acpi_pci_irq_derive   : Unable to derive IRQ for
: >  device 00:1f.1
: > PCI: No IRQ known for interrupt pin A of device 00:1f.1 - using IRQ 255
: >
: > But then:
: >
: > ide0 at 0x1f0-0x1f7,0x3f6 on irq 14
: > ide1 at 0x170-0x177,0x376 on irq 15
: >
: > Looks like it has the correct IRQs.
: 
: I've had the same problem with acpi assigning IRQ 255 to some devices
: but in my case I wasn't even able to boot. All of this was explained
: in my last mail to this list. My ide controller is a ICH2M.

-- 
  Matthew Harrell                          Programmer - a red-eyed mumbling
  Bit Twiddlers, Inc.                       mammal capable of conversing with
  mharrell-bmWjYudjZeGERhycZ4x6Ig@public.gmane.org                 inanimate objects.


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Re: Re: odd irq routing errors?

[Faye Pearson]

Matthew Harrell [lists-sender-12e533-bmWjYudjZeGERhycZ4x6Ig@public.gmane.org] wrote:
> : Faye Pearson writes:
> : > PCI: No IRQ known for interrupt pin A of device 00:1f.1 - using IRQ 255

> So is this problem listed below the same as the one I'm having on my laptop?
> I cannot boot any 2.5.6? kernels with acpi turned on since once acpid starts
> the laptop slows down horrendously, many programs seg fault or the scripts
> give bizarre results, and the ide controller spits out numerous messages.  Is
> there anything I can do to fix this problem?  

The message is (mis)informational rather than destructive for me.

Try removing acpid from your startup scripts before booting into 2.5.6x
then check your /proc/interrupts and see if there are a large number
being generated quickly.
This could cause laptop slowdown and perhaps overheating which can
introduce instability.  It's a known problem that I've seen
mentioned on the list.  I expect that the developers will need much more
information from you if they are to help.


Faye

-- 
Faye Pearson,
Covert Development
ClaraNET Ltd.       Tel 020 7903 3000

  The good oxymoron, to define it by a self-illustration, must be a
  planned inadvertency. -Wilson Follett


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Re: Re: odd irq routing errors?

[Matthew Harrell]

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: > : > PCI: No IRQ known for interrupt pin A of device 00:1f.1 - using IRQ 255
: 
: The message is (mis)informational rather than destructive for me.

BTW, when I tried some of your suggestions I saw that I was, in fact, getting
the exact same error message.  I was never able to see it before since the 
laptop became totally unuseable.  

: Try removing acpid from your startup scripts before booting into 2.5.6x
: then check your /proc/interrupts and see if there are a large number
: being generated quickly.

Not sure what a large number really is anymore since I haven't really watched
it in a long time.  Once I removed acpid from the startup it then died on 
starting alsa but when I booted it into single user mode I saw the message
about pci=noacpi.  So, I am now operating under it with acpi on, pci=noacpi,
and no acpid.  If I turn on acpid it hangs the system again so this is kind of
a pointless configuration to run in.  I don't see an unusual amount of
interrupts in this state except on timer and I assume that is normal

             CPU0
    0:     405906          XT-PIC  timer
    1:         14          XT-PIC  i8042
    2:          0          XT-PIC  cascade
    8:          4          XT-PIC  rtc
    9:        740          XT-PIC  acpi, VIA8233
   10:      17175          XT-PIC  uhci-hcd, eth0
   11:         25          XT-PIC  eth1
   12:         35          XT-PIC  i8042
   14:       8644          XT-PIC  ide0
   15:          1          XT-PIC  ide1
  NMI:          0
  LOC:          0
  ERR:          0
  MIS:          0


: This could cause laptop slowdown and perhaps overheating which can
: introduce instability.  It's a known problem that I've seen
: mentioned on the list.  I expect that the developers will need much more
: information from you if they are to help.

If anyone would like to look into it just let me know what info I can provide.
I can work like this for a while but it's not optimal - 50% of the time I don't
have pcmcia support on bootup like this (and don't really need it) and 50%
of the time I don't have USB.  

Boot messages are attached below

-- 
  Matthew Harrell                          Any sufficiently advanced technology
  Bit Twiddlers, Inc.                       is indistinguishable from a rigged
  mharrell-bmWjYudjZeGERhycZ4x6Ig@public.gmane.org                 demo.

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