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From: sig6247 <sig6247@list.ru>
To: freebsd-arm@FreeBSD.org
Subject: dd /dev/random hangs on RPI-B+
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Hi, 

I'm running r273923, just noticed dd hangs with /dev/random,
something like

% dd if=/dev/random of=/dev/null bs=512K count=1

It never returns and takes all the CPU, and this process can't be
killed. I also tried dd if=/dev/zero or dd if=/dev/mmcsd0, they
both look fine. 

Any help would be appreciated.