Re: [PATCH beta 1] 0/3] Fix race conditions in mrf24j40 interrupts

Alan Ott
2013-05-22T02:04:03Z

On 05/21/2013 10:01 PM, Alan Ott wrote:
> David Hauweele noticed that the mrf24j40 would hang arbitrarily after some
> period of heavy traffic. Two race conditions were discovered, and the
> driver was changed to use threaded interrupts, since the enable/disable of
> interrupts in the driver has recently been a lighning rod whenever issues
> arise related to interrupts (costing engineering time), and since threaded
> interrupts are the right way to do it.
>
> Alan Ott (3):
> mrf24j40: Move INIT_COMPLETION() to before packet transmission
> mrf24j40: Use threaded IRQ handler
> mrf24j40: Use level-triggered interrupts
>
> drivers/net/ieee802154/mrf24j40.c | 31 +++++++++----------------------
> 1 file changed, 9 insertions(+), 22 deletions(-)

I forgot to add, I ran ping -f both ways all afternoon (6.5 hours), and
it seems solid.