Re: APM problem in 5.1-RELEASE

Jesse Guardiani wrote:


> Things I would like to improve upon:
> ------------------------------------
> 1.) I need to find some way to automatically kill any processes that are
>     using (or have opened) the /dev/acd0 device BEFORE executing apm -z
>     from /etc/rc.suspend.

OK. The following pipeline does a pretty good job of this:

# Kill any process currently using /dev/acd0
kill -KILL `fstat /dev/acd0 | sed -Ee 's/[[:space:]]+/ /g' | cut -d ' ' -f 3`

It isn't perfect (i.e. if more than one process has /dev/acd0 open, it won't
kill the second process), but I can expand on this to make it fit just about
any need.


[...]

> 2.) I'd love to automate (or do away with) the process of switching to
>     a VTY from X before executing 'atacontrol detach 1'.

This from Tobias Roth:

-------------------------------------------------------------------------
to do this automatically, change your /etc/rc.suspend and /etc/rc.resume
like this:

/etc.rc.suspend: insert this line just before the 'logger' line:

vidcontrol -s 2 < /dev/ttyv0


/etc/rc.resume: insert this line just before the 'logger' line:

vidcontrol -s 1 < /dev/ttyv0
-------------------------------------------------------------------------

This works pretty darn well! Thanks Tobias!

I can now suspend my machine from X without fear of kernel panic! 
Thanks for the help everyone!


Here is my rc.suspend, just in case someone else with an IBM Thinkpad A30p
needs it:

---------- /etc/rc.suspend ----------
#!/bin/sh
#
# Copyright (c) 1999  Mitsuru IWASAKI
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
# 1. Redistributions of source code must retain the above copyright
#    notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
#    notice, this list of conditions and the following disclaimer in the
#    documentation and/or other materials provided with the distribution.
#
# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
# ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
# SUCH DAMAGE.
#
# $FreeBSD: src/etc/rc.suspend,v 1.4 2000/10/08 19:18:24 obrien Exp $
#

# sample run command file for APM Suspend Event

if [ -r /var/run/rc.suspend.pid ]; then
        exit 1
fi

echo $$ > /var/run/rc.suspend.pid

# If you have troubles on suspending with PC-CARD modem, try this.
# See also contrib/pccardq.c (Only for PAO users).
# pccardq | awk -F '~' '$5 == "filled" && $4 ~ /sio/ \
#       { printf("pccardc power %d 0", $1); }' | sh

logger -t apmd suspend at `date +'%Y%m%d %H:%M:%S'`

# Kill any process currently using /dev/acd0
kill -KILL `fstat /dev/acd0 | sed -Ee 's/[[:space:]]+/ /g' | cut -d ' ' -f 3`

# switch to a TTY
vidcontrol -s 1 < /dev/ttyv0

# detach buggy CD-ROM before suspending.
sync && sync && sync
atacontrol detach 1
sleep 1

sync && sync && sync
sleep 1

rm -f /var/run/rc.suspend.pid
zzz

exit 0
---------- end /etc/rc.suspend ----------


And here is my /etc/rc.resume:

---------- /etc/rc.resume ----------
#!/bin/sh
#
# Copyright (c) 1999  Mitsuru IWASAKI
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
# 1. Redistributions of source code must retain the above copyright
#    notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
#    notice, this list of conditions and the following disclaimer in the
#    documentation and/or other materials provided with the distribution.
#
# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
# ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
# SUCH DAMAGE.
#
# $FreeBSD: src/etc/rc.resume,v 1.5 2000/12/17 08:15:57 dougb Exp $
#

# sample run command file for APM Resume Event

if [ -r /var/run/rc.suspend.pid ]; then
        kill -9 `cat /var/run/rc.suspend.pid`
        rm -f /var/run/rc.suspend.pid
        echo 'rc.suspend is killed'
fi

# Turns on a power supply of a card in the slot inactivated.
# See also contrib/pccardq.c (only for PAO users).
# pccardq | awk -F '~' '$5 == "inactive" \
#       { printf("pccardc power %d 1", $1); }' | sh

# Switch back to X
vidcontrol -s 9 < /dev/ttyv0

logger -t apmd resumed at `date +'%Y%m%d %H:%M:%S'`
sync && sync && sync

# Reattach and reinitialize ATA channel 1
atacontrol attach 1

exit 0
---------- end /etc/rc.resume ----------




-- 
Jesse Guardiani, Systems Administrator
WingNET Internet Services,
P.O. Box 2605 // Cleveland, TN 37320-2605
423-559-LINK (v)  423-559-5145 (f)
http://www.wingnet.net