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Message-Id: <199903280733.JAA73569@internal>
Date: Sun, 28 Mar 1999 09:33:53 +0200 (CEST)
From: Andre Albsmeier <andre.albsmeier@mchp.siemens.de>
To: FreeBSD-gnats-submit@freebsd.org
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Subject: kern/10828: 3.1-STABLE freezes when writing to floppydrive without medium
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>Number:         10828
>Category:       kern
>Synopsis:       3.1-STABLE freezes when writing to floppydrive without medium
>Confidential:   no
>Severity:       critical
>Priority:       medium
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Sat Mar 27 23:40:01 PST 1999
>Closed-Date:
>Last-Modified:
>Originator:     Andre Albsmeier
>Release:        FreeBSD 3.1-STABLE i386
>Organization:
>Environment:

FreeBSD 3.1-STABLE

>Description:

FreeBSD 3.1-STABLE freezes when you are writing to a floppy disk
drive when there is no floppy inserted. I have heard that it also
makes problems when an inserted disk is write protected.

>How-To-Repeat:

1. remove the floppy
2. dd if=/dev/zero of=/dev/fd0 bs=64k

>Fix:
	
With the help of Mike Smith I think I tracked it down a little bit.
(Was my first experience with DDB). This is part of the output of
the trace command in DDB:

... 
---- interrupt stuff ------------ 
reassignbuf
bdirty
brelse
biodone 
fdstrategy
spec_strategy
spec_vnoperate
ufs_vnoperatespec
bwrite
vop_stdbwrite
vop_defaultop

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


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