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From: "Markie" <mark.cullen@dsl.pipex.com>
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Subject: WARNING - WRITE_MUL underrun
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Just a quick question, are these warnings harmless? Can I safely ignore
them? This is on a fairly recent current, 1st of July. The only other
references to this warning were from 2003, so I expect I am a minority
here!

(root|bone)/home/mrboo# cat /var/log/messages | grep WRITE_MUL
Sep  4 16:02:15 bone kernel: ad0: WARNING - WRITE_MUL write data underrun
8192>2048
Sep  4 16:05:33 bone kernel: ad0: WARNING - WRITE_MUL write data underrun
8192>4096
Sep  4 16:21:21 bone kernel: ad0: WARNING - WRITE_MUL write data underrun
8192>4096
Sep  4 16:31:14 bone kernel: ad0: WARNING - WRITE_MUL write data underrun
8192>4096
Sep  4 17:34:00 bone kernel: ad0: WARNING - WRITE_MUL write data underrun
8192>4096
Sep  4 17:42:59 bone kernel: ad0: WARNING - WRITE_MUL write data underrun
8192>4096
Sep  4 18:22:02 bone kernel: ad0: WARNING - WRITE_MUL write data underrun
8192>4096