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Date: Wed, 10 Aug 2011 12:04:47 -0700
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From: Navdeep Parhar <nparhar@gmail.com>
To: freebsd-current@freebsd.org
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Subject: duplicate output when dumping from ddb
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"dump" or "call doadump" from within ddb display duplicate output.
This is with a serial console.  I have  console="comconsole,vidconsole"
in /boot/loader.conf and  "-D -S115200"  in /boot.config.

db> dump
Dumping 1883 out of 12255 MB:Dumping 1883 out of 12255
MB:..1%..1%..11%..11%..21%..21%..31%..31%..41%..41%..51%..51%..61%..61%..71%..71%..81%..81%..91%..91%

Dump complete
Dump complete
db>

Something seems to have changed in the last couple of months or so.

Regards,
Navdeep