Andreas,
What does that fix?
Hardware with no interrupt line (EtherNEC, NetUSBee) has the driver
interrupt routine polled from the Atari timer D interrupt, which calls
in to the driver inthandler via driver-specific chained interrupts
IRQ_MFP_TIMER1 etc. (see patch to set up irq chip for timer D interrupt
earlier).
These interrupts will, more often than not, return IRQ_NONE as there's
not always any work to be done when called from the timer. Accumulation
of unhandled interrupts then causes the handler to be disabled by the
unhandled interrupt watchdog.
Driver maintainers have been reluctant to accept other hacks to fix
this issue (such as declaring the driver interrupt shared, and hooking
up a handler that just returns IRQ_HANDLED always).
Cheers,
Michael
Andreas.
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