Skip site navigation (1)Skip section navigation (2)
Date:      Sun, 13 Dec 2020 23:29:17 +0000
From:      bugzilla-noreply@freebsd.org
To:        bugs@FreeBSD.org
Subject:   [Bug 251828] "zfs create -o <mode>" ignores mode when creating the device node
Message-ID:  <bug-251828-227@https.bugs.freebsd.org/bugzilla/>

next in thread | raw e-mail | index | archive | help
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D251828

            Bug ID: 251828
           Summary: "zfs create -o <mode>" ignores mode when creating the
                    device node
           Product: Base System
           Version: CURRENT
          Hardware: Any
                OS: Any
            Status: New
          Severity: Affects Only Me
          Priority: ---
         Component: kern
          Assignee: bugs@FreeBSD.org
          Reporter: asomers@FreeBSD.org

zvols have a "volmode" property that controls how their device nodes are
created: as geom devices (default), as non-geom character devices, or not at
all.  At least, it's supposed to do that.  But on 13-CURRENT, the volmode
property gets ignored at creation time.  The device always gets created as =
the
default type instead.

The easiest way to demonstrate the problem is to use gpart on the device no=
de.=20
It isn't supposed to work if the node is a non-geom device.  But it does!

# zfs create -o volmode=3Ddev -V 64m testpool/vol
# gpart create -s gpt /dev/zvol/testpool/vol
zvol/testpool/vol created

However, if we change the volmode property after creation, then ZFS destroys
and recreates the device node with the correct volmode.

# zfs create -V 64m testpool/vol
# zfs set volmode=3Ddev testpool/vol
# gpart create -s gpt /dev/zvol/testpool/vol
gpart: arg0 'zvol/testpool/vol': Invalid argument

--=20
You are receiving this mail because:
You are the assignee for the bug.=



Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?bug-251828-227>