>                On AT91 David Brownell noticed several months
> ago that the DBGU can miss some characters on NO_HZ. I would expect
> that this would be better now due to the shorter interrupt handler,
> although it was not my goal to solve it with these patches.

The current (kernel.org git) AT91 timer handler incorporates a bugfix
in that area, which seemed to resolve most of those problems.

- Dave

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