71 lines
1.9 KiB
Plaintext
71 lines
1.9 KiB
Plaintext
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#!/bin/sh
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# We are trying to be nice.
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# TERM everybody. Give them some time to die.
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# KILL might make some filesystems non-unmountable,
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# so we'll do it in stop_storage instead.
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killcnt=30
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PATH=/sbin:/usr/sbin:/bin:/usr/bin
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echo "<*> `date '+%Y-%m-%d %H:%M:%S'` Executing '$0 $*'"
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showps() {
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# sleep 1 ensures that xargs will have time to start up.
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# This makes pslist less prone to random jitter.
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pslist=`{ sleep 1; ps -A -o comm=; } | sort | xargs`
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pscnt=$(( `echo "$pslist" | wc -w` + 0 ))
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if test x"$VERBOSE" = x; then
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echo "* `date '+%H:%M:%S'` $pscnt processes"
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else
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echo "* `date '+%H:%M:%S'` Processes ($pscnt): $pslist"
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fi
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}
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# Sync.
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# Rationale: sometimes buggy root processes can
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# hang the system when killed (X for example may have problems
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# with restoring text mode on a poorly supported hardware).
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# These are bugs and must be fixed, but until then users will lose
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# dirty data on shutdown! Let's make that less likely.
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sync &
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# Send SIGTERMs. If list of processes changes, proceed slower.
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# If it has stabilised (all who wanted to, exited), proceed faster.
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showps
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i="$killcnt"
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while test "$i" -gt 0; do
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echo "* `date '+%H:%M:%S'` Sending CONT, TERM" #, HUP"
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# I've seen "killall5 2.86" which doesn't grok signal names!
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killall5 -18
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killall5 -15
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#killall5 -1 # HUP: because interactive bash does not die on TERM...
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# but init will reread /etc/inittab on HUP and my /etc is on non root fs!
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# -> umounts will complain.
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oldpslist="$pslist"
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showps
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if test x"$pslist" = x"$oldpslist"; then
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i=$((i-8))
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fi
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i=$((i-2))
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done
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echo "* `date '+%H:%M:%S'` Turning off swap"
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swapoff -a
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cat /proc/swaps | grep -v ^Filename | cut -d ' ' -f1 \
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| while read -r line; do
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test "$line" && {
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echo swapoff "$line"
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swapoff "$line"
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}
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done
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echo "* /proc/swaps:"
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cat /proc/swaps
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echo "* /proc/mounts:"
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cat /proc/mounts
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echo "* ps -A e:"
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ps -A e
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echo "* top -bn1:"
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top -bn1
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