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Date: Wed, 16 Dec 1998 18:04:59 +0100 (CET)
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Subject: kern/9104: Mounting MS-DOS floppy crashes 3.0-RELEASE
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>Number:         9104
>Category:       kern
>Synopsis:       A weird sequence of two mounts 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:   Wed Dec 16 09:10:01 PST 1998
>Last-Modified:
>Originator:     Anton Berezin
>Organization:
The Protein Laboratory, University of Copenhagen
>Release:        FreeBSD 3.0-RELEASE i386
>Environment:

	Tested on two very different machines with 3.0-RELEASE

>Description:

	When issuing (by mistake) the following command

		mount /dev/fd0.1440 /mnt

	with MS-DOS-formatted floppy inserted mount correctly reports
	a failure (incorrect super-block or somesuch).

	After realizing the mistake and issuing immediately after this

		mount_msdos /def/fd0.1440 /mnt

	the system does something for several seconds (all responses
	are very slow), then reboots.

	This was tested on two very different (486-66-32-ISA-IDE and
	PII-400-128-PCI-SCSI) machines with two different known-to-be-good
	diskettes.  Both diskettes were mounted alright when the
	correct mounting command was specified.

>How-To-Repeat:

	See description.  I believe it's reproducible.

>Fix:
	
	I wish I knew.
>Audit-Trail:
>Unformatted:

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