[Bug 29300] Interrupt disabled after some time

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=29300

--- Comment #7 from Mathias Brodala <info at noctus.net> 2010-08-12 00:14:21 PDT ---
(In reply to comment #6)
> Here’s the current Xorg log file. Apparently IRQ #17 is taken by the DMA
> controller which is not mentioned with KMS.

According to a comment on top of the radeon_driver_irq_handler() function this
is not really true and "just a hangover from dri prehistory".

Still no real clue here. According to kernel/irq/spurious.c in the kernel
source tree this can only happen if "unlikely(desc->irqs_unhandled > 99900)"
which I understand in that way that too little IRQs where unhandled. Does not
make any sense to me.

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