On 09.08.2012 13:37, Felipe Balbi wrote:
Hi,
I have pushed a patch which I think solves this issue. Can you test ?
Hi,
my patch is unneeded since this is a threaded interrupt handler. And it
runs with
interrupt line masked globally on the controller(because of IRQF_ONESHOT).
And I think that "sti" instruction can't reenable this line because it
is cpu related.
The point was that if "local_irq_enable" is called in primary irq
handler or in
request_irq handler you reenables (maybe accidentally) interrupts on the
cpu.
Because after patch https://lkml.org/lkml/2010/3/25/434 these handlers
runs with
interrupts disabled.
Some time ago our static tool didn't make any difference between
ordinary and
threaded interrupts handlers. At that time I didn't know it and didn't
check the
code enough. So it was a false positive.
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