Re: [Xenomai-help] xnintr_shirq_handler: IRQ11 not handled. Disabling IRQ line.

[Dennis Nguyen <dennisnguy@domain.hid>]

Jeroen, Roland,

I'm sorry for replying late.  my interrupt conflicts could be solved by 
using only one NIC or upgrade to Linux 2.6.23.9.  Interestingly I 
noticed that the kernel 2.6.23.9 assigned different IRQ for each PCI device.
My solution is using Linux i386 2.6.23.9 and xenomai 2.4-rc7.
Thanks for your help,
Dennis

Jeroen Van den Keybus wrote:
>
>     post the output of
>
>     lspci -v
>
>  
> And while you're at it, please also show the results of
>  
> cat /proc/interrupts
> cat /proc/xenomai/irq
>  
> both just before loading the driver and right after the 'Disabling 
> IRQ.' message.
>  
>  
> Jeroen.
>  
>
>  
>
>
>  
>
>     Roland
>
>     Dennis Nguyen wrote:
>     > Most of the times the RTnet/Xenomai disabled the IRQ right away.
>     few
>     > time it ran for a while.
>     > It doesn't matter the system has single or 2 cards, it still have
>     > conflict IRQ.  I tried to change the slot but it did not help.
>     > Thanks,
>     > Dennis
>     >
>     > Jeroen Van den Keybus wrote:
>     >>     The Xenomai disabled the interrupt when it saw the sharing.
>     >>
>     >>
>     >> I may have mislooked, but doesn't xnintr_shirq_handler only
>     disable
>     >> the line after XNINTR_MAX_UNHANDLED problematic IRQs (which is by
>     >> default set to 1000) ? If you get the error immediately after
>     loading
>     >> the driver, it looks like either the interrupt doesn't get
>     properly
>     >> acknowledged in the I-pipe (after which the driver gets pounded
>     by 999
>     >> stray interrupts, causing it to return 'unhandled') or the driver
>     >> fails to acknowledge it on the card.
>     >>
>     >>
>     >>     The NICs worked normally with 8139too.ko and 8139cp.ko drivers.
>     >>
>     >>
>     >> Ok. I think that means that at least no weird things happen in the
>     >> I-pipe or that the cards are defective (or poorly inserted in
>     slot).
>     >>
>     >>
>     >>     I have three difference types of PCs: pentium III 650 Mhz,
>     Core2, and
>     >>     AMD athlon 2Ghz. on different mother boards.  All of them have
>     >>     conflict
>     >>     IRQs with xenomai and RTnet.  I swapped the slots but it
>     did not
>     >>     changed.  I'm thinking of giving the NICs  fixed IRQ but I
>     don't
>     >>     know how.
>     >>
>     >>
>     >> As said before, you can only practically do that in the BIOS or
>     using
>     >> ACPI.
>     >>
>     >> Does the rtnet driver work correctly with only one card ?
>     >>
>     >>
>     >> Jeroen.
>     >>
>     >
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