Enabling interrupt filters by default

[Marcel Moolenaar]

On Apr 15, 2009, at 1:13 PM, John Baldwin wrote:

> On Wednesday 15 April 2009 2:04:14 pm Marcel Moolenaar wrote:
>>
>> On Apr 15, 2009, at 10:24 AM, John Baldwin wrote:
>>
>>> A while ago I changed the interrupt code in 8.x such that all the MD
>>> code was
>>> the same for both the INTR_FILTER and non-INTR_FILTER case.  I would
>>> like to
>>> flip the switch to enable INTR_FILTER by default.  Any objections?
>>
>> Last time it was found to be not working. Did we fix it?
>
> Err, when was that?

August 2007.

>  I know folks have used it on amd64 and i386 ok and I have
> tested it on both of those platforms.  One of the arm kernel configs  
> uses it
> by default.

There was interrupt starvation on sparc64. There were also
issues with permanently masking stray interrupts. This is
problematic when interrupts are shared and there is at least
1 filter on it.

FYI,

-- 
Marcel Moolenaar
xcllnt at mac.com