From owner-freebsd-stable  Thu Feb 18 15:51:56 1999
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Reply-To: Cy Schubert - ITSD Open Systems Group <Cy.Schubert@uumail.gov.bc.ca>
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To: Ted Spradley <tsprad@set.spradley.tmi.net>
Cc: Cy Schubert - ITSD Open Systems Group <Cy.Schubert@uumail.gov.bc.ca>,
	Bjoern Fischer <bfischer@Techfak.Uni-Bielefeld.DE>,
	Matthew Dillon <dillon@apollo.backplane.com>,
	freebsd-stable@FreeBSD.ORG
Subject: Re: no dirty bufs panics any more... 
In-reply-to: Your message of "Thu, 18 Feb 1999 16:23:09 CST."
             <199902182223.QAA11204@set.spradley.tmi.net> 
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Date: Thu, 18 Feb 1999 15:50:25 -0800
From: Cy Schubert <cschuber@uumail.gov.bc.ca>
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A quick and dirty circumvention might be to put the following in 
rc.shutdown until the root cause of the panics can be found and 
fixed.  I use something similar to this to unmount NFS filesystems 
to avoid a panic during 2.2 shutdown.

# Quick and dirty fix for dirty buffer panic during shutdown
for I in `df -tmfs | awk 'NR > 1 {print $6}'`; do
    for J in `fstat -f $I | awk 'NR > 1 {print $3}'`; do
	kill $J
    done
done
sleep 20
for I in `df -tmfs | awk 'NR > 1 {print $6}'`; do
    for J in `fstat -f $I | awk 'NR > 1 {print $3}'`; do
	kill -9 $J
    done
done
sleep 10
umount -vatmfs || echo MFS umount failed.


Regards,                       Phone:  (250)387-8437
Cy Schubert                      Fax:  (250)387-5766
Open Systems Group          Internet:  Cy.Schubert@uumail.gov.bc.ca
ITSD                                   Cy.Schubert@gems8.gov.bc.ca
Province of BC            
                                       
In message <199902182223.QAA11204@set.spradley.tmi.net>, Ted 
Spradley writes:
> > Another comment and a question:
> > 
> > Has anyone tried manually unmounting an MFS filesystem?  Does the 
> > system panic?
> 
> Just tried.  Worked fine.  And mounted again just fine.  No panic.
> 
> 
> 
> 
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