Date: Sun, 15 Aug 1999 15:16:26 -0400 (EDT) From: aa8vb@ipass.net To: FreeBSD-gnats-submit@freebsd.org Cc: aa8vb@ipass.net Subject: kern/13161: mounting on top of a mounted file system Message-ID: <199908151916.PAA12679@stealth.ipass.net.>
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>Number: 13161
>Category: kern
>Synopsis: mounting on top of a mounted file system
>Confidential: no
>Severity: non-critical
>Priority: medium
>Responsible: freebsd-bugs
>State: open
>Quarter:
>Keywords:
>Date-Required:
>Class: sw-bug
>Submitter-Id: current-users
>Arrival-Date: Sun Aug 15 12:20:00 PDT 1999
>Closed-Date:
>Last-Modified:
>Originator: Randall Hopper
>Release: FreeBSD 3.2-RELEASE i386
>Organization:
self
>Environment:
Stock 3.2-RELEASE.
>Description:
I had:
> df | grep 32_share
/dev/wd1s3e 2031953 1353017 516380 72% /32_share
Then I mistakenly did a:
> mount /dev/wd0s3e /32_share
^
And it didn't generate an error (!?). I then had:
> df | grep 32_share
/dev/wd1s3e 2031953 1353017 516380 72% /32_share
/dev/wd0s3e 2032623 1169007 701007 63% /32_share
Odd things started happening (vi failed, missing directories, etc.), so I
rebooted. All is normal now, and nothing lost AFAIK, but that sure was
strange.
This looks like a bug.
>How-To-Repeat:
> mount /dev/wd1s1 /abc
> mount /dev/wd1s2 /abc
In this case, both were FreeBSD UFSs.
>Fix:
Unknown. I think that mount should issue an error when this is attempted.
>Release-Note:
>Audit-Trail:
>Unformatted:
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