It seems to be working for me now at full memory. I did a search on the BUS_DMASYNC_PREREAD, one nic for freebsd had a patch full of replacing PREREAD with PREWRITE, so maybe a doc needs updated.

On 4/3/2013 8:34 PM, Adrian Chadd wrote:
Ok, grab this:

then patch this:

cd /path/to/blah/sys/dev/ath/
svn revert *[ch]
patch -p0 < patch

I'm running this on an AR9580 with the above patch. No issues now.

The problem? PREREAD doesn't do what I thought it does.


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