Package: procps Version: 2:4.0.2-1
Since 2022-12-05 the Debian sid builds of linuxcnc have failed. After some days scratching our heads, we discovered that the problem originated from 'ps' changout its output format. Running 'ps -o comm= <pid>' used to include '<defunct>' if the process was a zombie, but with the new version it no longer did. Eventually a solution was found and the following patch from <URL: https://github.com/LinuxCNC/linuxcnc/commit/7e974894ad3b1fd75139a318c133a9ec10635e87 > worked around the changed output: diff --git a/scripts/linuxcnc.in b/scripts/linuxcnc.in index 166bf499c0..0fa78303ad 100644 --- a/scripts/linuxcnc.in +++ b/scripts/linuxcnc.in @@ -592,7 +592,7 @@ function KillTaskWithTimeout() { fi local NPROCS for KILL_PID in $KILL_PIDS ; do - if $PS -o comm= $KILL_PID | $GREP -q '<defunct>'; then + if $PS -o stat= -o comm= $KILL_PID | $GREP -q '^Z'; then echo "Skipping defunct task $KILL_TASK, PID=$KILL_PID" >>$PRINT_FILE continue fi @@ -602,7 +602,7 @@ function KillTaskWithTimeout() { # wait and see if it disappears while [ $WAIT -gt 1 ] ; do # see if it's still alive - NPROCS=$($PS -o comm= $KILL_PID | $GREP -v '<defunct>' | wc -l) + NPROCS=$($PS -o stat= -o comm= $KILL_PID | $GREP -v '^Z' | wc -l) if [ $NPROCS -gt 0 ]; then WAIT=$(($WAIT-1)) sleep .1 @@ -618,7 +618,7 @@ function KillTaskWithTimeout() { # wait and see if it disappears while [ $WAIT -gt 1 ] ; do # see if it's still alive - NPROCS=$($PS -o comm= $KILL_PID | $GREP -v '<defunct>' | wc -l) + NPROCS=$($PS -o stat= -o comm= $KILL_PID | $GREP -v '^Z' | wc -l) if [ $NPROCS -gt 0 ]; then WAIT=$(($WAIT-1)) sleep .1 I do not know if this new behaviour is intended or not, but thought it best to let you know about the issue it caused. -- Happy hacking Petter Reinholdtsen
