Date: Tue, 17 Nov 2015 11:01:06 +0000 From: bugzilla-noreply@freebsd.org To: freebsd-bugs@FreeBSD.org Subject: [Bug 204628] ZFS dies when another dataset appears with same mountpoint as existing Message-ID: <bug-204628-8@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=204628 Bug ID: 204628 Summary: ZFS dies when another dataset appears with same mountpoint as existing Product: Base System Version: 10.2-RELEASE Hardware: Any OS: Any Status: New Severity: Affects Only Me Priority: --- Component: kern Assignee: freebsd-bugs@FreeBSD.org Reporter: vlad-fbsd@acheronmedia.com Importing a pool with mountpoints already existing for another, mounted dataset, or doing send | receive of existing mounted datasets to, say, external media, will cause ZFS to break instead of refusing to mount to existing mountpoints. What happens is that running any ZFS command fails with "internal error: failed to initialize ZFS library". In case of sending a backup of zroot (root dataset) snapshot to external media, if the external media is then unplugged, the system freezes. I have used -u on zfs receive but I apparently misunderstood the flag and will file another PR about the manpage flag description ambiguity. Is it "is not mounted" or "will not be mounted" (as I was lead to believe following an article on zfs send,recv backups)? I suspect this is also a gaping security hole if you import unknown pools and forget to -N. -- You are receiving this mail because: You are the assignee for the bug.
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