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Date: Mon, 28 Dec 2009 10:32:28 +0300
From: Andrew Belashov <bel@orel.ru>
Organization: ORIS
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Subject: busdma is not properly implemented on 8.0-RELEASE?
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Hi, All!

After upgrading from FreeBSD 7.2-RELEASE to 8.0-RELEASE there were
problems with USB. Related PR: usb/141918
<http://www.freebsd.org/cgi/query-pr.cgi?pr=usb/141918>

Hans Petter Selasky wrote:
"My guess for this issue is that the cache invalidate and cache flush
instructions are not properly implemented by busdma on your platform."

How to check this guess?

--
With Best Regards,
  Andrew Belashov.