Date: Sun, 29 Nov 1998 19:22:35 -0500 (EST) From: aa8vb@pagesz.net To: FreeBSD-gnats-submit@FreeBSD.ORG Cc: aa8vb@pagesz.net Subject: kern/8902: incorrect mount crashes 3.0-RELEASE Message-ID: <199811300022.TAA01296@stealth.dummynet.>
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>Number: 8902
>Category: kern
>Synopsis: Incorrect mount crashes 3.0-RELEASE
>Confidential: no
>Severity: serious
>Priority: medium
>Responsible: freebsd-bugs
>State: open
>Quarter:
>Keywords:
>Date-Required:
>Class: sw-bug
>Submitter-Id: current-users
>Arrival-Date: Sun Nov 29 16:30:01 PST 1998
>Last-Modified:
>Originator: Randall Hopper
>Organization:
self
>Release: FreeBSD 3.0-RELEASE i386
>Environment:
Stock 3.0-RELEASE installed.
Mix of FreeBSD UFS DOS FAT file systems.
>Description:
I've done this twice, so I think it's pretty reproducable.
The system locks and reboots (after 15 seconds or so) when
I incorrectly try to mount a DOS FAT file system as UFS, and
then (seeing my error and the "invalid superblock" message), I
turn around and try to correctly mount it as MSDOS. This
locks and reboots the entire system.
>How-To-Repeat:
Given a DOS FAT file system on /dev/wd0s5 (extended DOS partition).
Then just do:
mkdir /f
mount /dev/wd0s5 /f
< you get a warning msg; of course; this isn't a UFS >
mount -t msdos /dev/wd0s5 /f
< SYSTEM LOCKS UP / REBOOTS >
BTW, I doubt that it's relevent, but I have wd0s5 mounted
read-only in my fstab:
/dev/wd0s5 /f msdos ro,-m555 0 0
so to be absolutely complete, what I actually did was this:
umount /f
followed by the above mount commands.
>Fix:
Not known.
>Audit-Trail:
>Unformatted:
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