On Friday, April 27, 2012 6:20:17 pm YongHyeon PYUN wrote:
> On Wed, Apr 25, 2012 at 09:35:28AM -0400, John Baldwin wrote:
> Hmm, would you give attach patch try?
> Yukon Extreme seems to have a new flow control feature but I'm not
> sure whether this is related with interrupt storm you're seeing.

No luck. :(  I did seem to get many more interrupts with TWSI ready asserted
with this patch, but I did get a storm after a few hours, it has the same bit
set as before:

index  cpu timestamp        trace
------ --- ---------------- -----
   602   0   26139273204228 msk_intr: B0_Y2_SP_ISRC2 = 0x40000000
   601   0   26139273105828 msk_intr: B0_Y2_SP_ISRC2 = 0x40000000
   600   0   26139273007620 msk_intr: B0_Y2_SP_ISRC2 = 0x40000000
   599   0   26139272909292 msk_intr: B0_Y2_SP_ISRC2 = 0x40000000
   598   0   26139272311224 msk_intr: B0_Y2_SP_ISRC2 = 0x40000000
   597   0   26139272212920 msk_intr: B0_Y2_SP_ISRC2 = 0x40000000
   596   0   26139272114688 msk_intr: B0_Y2_SP_ISRC2 = 0x40000000
   595   0   26139272016384 msk_intr: B0_Y2_SP_ISRC2 = 0x40000000
   594   0   26139271917972 msk_intr: B0_Y2_SP_ISRC2 = 0x40000000
   593   0   26139271819800 msk_intr: B0_Y2_SP_ISRC2 = 0x40000000
   592   0   26139271705008 msk_intr: B0_Y2_SP_ISRC2 = 0x40000000
   591   0   26139271593960 msk_intr: B0_Y2_SP_ISRC2 = 0x40000000
   590   0   26139271492056 msk_intr: B0_Y2_SP_ISRC2 = 0x40000000

--
John Baldwin
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