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List:       freebsd-bugs
Subject:    kern/162905: -E flag in newfs has no effect
From:       Robert Millan <rmh () debian ! org>
Date:       2011-11-27 16:51:24
Message-ID: 201111271651.pARGpOHJ046473 () red ! freebsd ! org
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> Number:         162905
> Category:       kern
> Synopsis:       -E flag in newfs has no effect
> Confidential:   no
> Severity:       non-critical
> Priority:       low
> Responsible:    freebsd-bugs
> State:          open
> Quarter:        
> Keywords:       
> Date-Required:
> Class:          sw-bug
> Submitter-Id:   current-users
> Arrival-Date:   Sun Nov 27 17:00:21 UTC 2011
> Closed-Date:
> Last-Modified:
> Originator:     Robert Millan
> Release:        FreeBSD 9-STABLE
> Organization:
> Environment:
> Description:

-E flag in newfs doesn't erase the whole device. For one thing, it returns \
immediately (which is unexpected since DIOCGDELETE ioctl is a blocking call). On the \
other hand, pre-existing filesystems continue to be usable:

# zpool create -m none -f test /dev/ada1s1
# zpool export test
# newfs -E /dev/ada1s1
[...]
Erasing sectors [128...16773119]
[...]
# zpool import test
#

> How-To-Repeat:

> Fix:
I don't know the fix, but it seems most likely a kernel bug (I've verified that \
DIOCGDELETE ioctl is indeed being called).


> Release-Note:
> Audit-Trail:
> Unformatted:
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