Re: Device Driver Etiquette

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Lee Revell wrote:
> On 6/1/07, Matthew Fredrickson <[email protected]> wrote:
>> is it acceptable (although
>> not nice) to simply fix it this way, by disabling irqs while it loads
>> the firmware?
> I would say to just disable IRQs while loading firmware.  Almost every
> server I maintain has some vendor driver which generates a "many lost
> ticks!" message on load.  As long as it's only done at module load
> time it should be fine.
> Of course the best solution is to just get the driver into mainline.

Disable interrupts for 5-10 seconds (see OP)?  You're nuts.

That might be only a minor disaster on an SMP system, assuming IRQ
balancing sends them elsewhere, but on a uniprocessor system you're
effectively shooting the machine in the head.

It should be possible to streamline the code to not hog the stack that way.

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