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Re: kern/55848: amd64 9/99.76 panic in audio(4)

The following reply was made to PR kern/55848; it has been noted by GNATS.

From: Tetsuya Isaki <>
To: Paul Goyette <>
Subject: Re: kern/55848: amd64 9/99.76 panic in audio(4)
Date: Wed, 09 Dec 2020 13:45:27 +0900

 At Mon, 7 Dec 2020 10:05:39 -0800 (PST),
 Paul Goyette wrote:
 > Looking at the code and traceback, it would seem that firefox (or
 > something) is attempting to open the record-mixer without ensuring
 > that sc_rbusy is unset.
 I have just committed the fix.  In fact I didn't use firefox to
 reproduce, but I simulated and could confirm the same panic.
 Could you try audio.c rev 1.80 (or later)?
 Tetsuya Isaki < />

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