| #!/bin/sh |
| # This is a "repair binary" for watchdog that allows the tests to fail N times |
| # within a given period before a reboot is called. Note that this "grace |
| # period" should really be a functionality of watchdog itself, IMHO. |
| # |
| # Erik Rossen <rossen@prolibre.com> |
| |
| # If one does not change the default watchdog loop time of 10 secords, N=12 |
| # will allow two minutes of failures before a reboot is signaled. |
| N=12 |
| |
| # CMAXAGE is the age in seconds that the counter file may have before it is |
| # considered too old and is wiped out. |
| CMAXAGE=20 |
| |
| ERR=$1 |
| |
| COUNTER=/var/run/watchdog.counter |
| |
| if test -f $COUNTER; then |
| COUNTERAGE=$(stat -c %Y $COUNTER) |
| NOW=$(date +%s) |
| if test $(($COUNTERAGE+$CMAXAGE)) -lt $NOW ; then |
| rm $COUNTER |
| else |
| I=$(cat $COUNTER) |
| fi |
| fi |
| |
| I=${I:-0} |
| |
| I=$(($I+1)) |
| |
| logger -t "watchdog[$$]" "Failure $I of $N" |
| logger -t "watchdog[$$]" "PROCESS LIST:" |
| ps auxww | logger -t "watchdog[$$]" |
| |
| if test "$I" -ge "$N" ; then |
| logger -t "watchdog[$$]" Too many failures. Signalling reboot. |
| rm $COUNTER |
| exit $ERR |
| fi |
| |
| echo $I > $COUNTER |
| exit 0 |
