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From: Andrew Thompson <thompsa@FreeBSD.org>
To: Alexander Motin <mav@freebsd.org>
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Cc: svn-src-head@freebsd.org, svn-src-all@freebsd.org,
	src-committers@freebsd.org
Subject: Re: svn commit: r198748 - in head/sys/cam: . ata scsi
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2009/11/2 Alexander Motin <mav@freebsd.org>:
> Author: mav
> Date: Sun Nov =A01 11:31:06 2009
> New Revision: 198748
> URL: http://svn.freebsd.org/changeset/base/198748
>
> Log:
> =A0MFp4:
> =A0Fix reference counting bug, when device unreferenced before then
> =A0invalidated. To do it, do not handle validity flag as another
> =A0reference, but explicitly modify reference count each time flag is
> =A0modified.
>
> =A0Discovered by: =A0 =A0 =A0 =A0thompsa

Thanks!