usb_pc_cpu_flush
Ian Lepore
ian at freebsd.org
Tue Jan 13 14:49:44 UTC 2015
On Tue, 2015-01-13 at 00:14 -0700, kott wrote:
> Yes with cache disabled, this problem is not seen. Seems to be with a issue
> with l2 cache.
> Thanks kott
Except that there are no known problems with l2 cache on armv7 right
now. There are known problems with the USB driver using the busdma
routines incorrectly, which accidentally works okay on x86 platforms but
likely not so well on others.
-- Ian
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