Matthew Fredrickson wrote:
I have noticed something that might be related as well. I am working on
a device driver that would have periodic data errors due to
exceptionally long interrupt handling latency. I have come to the point
that I suspect that it's the sata_nv driver, and now that we can't do
the hdparm -u1 option for sata, it seems to be a bigger problem.
That's mostly off topic. libata configures DMA if at all possible and
fallback to PIO only after a lot of serious errors. Is your drive in
pio mode? Or does it happen even when in dma mode?
--
tejun
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