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Re: CVS commit: src/sys/dev/ic
On Mar 20, 2009, at 9:28 AM, Izumi Tsutsui wrote:
Module Name: src
Committed By: tsutsui
Date: Fri Mar 20 16:28:57 UTC 2009
src/sys/dev/ic: z8530sc.c z8530tty.c
Try to avoid zstty hangs on higher speed:
Check pending interrupts in a loop until all requests are handled.
The old comments said it would cause horrible latency to sun3x
but serial ports should have higher priority than disks anyway.
I think the issue is that sun3x floppies use pseudo-DMA, and the
interrupts need to be serviced VERY quickly.
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