Date: Fri, 11 Nov 2005 09:28:14 -0800 (PST) From: John Kozubik <john@kozubik.com> To: freebsd-bugs@freebsd.org Cc: rwatson@freebsd.org Subject: mounted snapshots still writeable 1.5 years later (RE: kern/68576) Message-ID: <20051111091807.J95949@kozubik.com>
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In July of 2004 (circa 5.2.1-RELEASE) I filed kern/68576 which described how snapshot files can be mounted read/write and altered. New files can be added to them, existing files can be deleted or altered, and the snapshot file can be returned to read-only state and still be used. It was generally agreed that this was a bad thing - it is unexpected behavior that contradicts the technical requirements of UFS2 snapshots as well as the behavior that the FreeBSD documentation provides. It is also potentially dangerous. It is now Nov. 2005, circa 5.4-RELEASE, and the behavior described in this PR has not changed. ----- John Kozubik - john@kozubik.com - http://www.kozubik.com
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