kill zombies with gdb and wait-for-child

rich1.0phorkiehttps://p.cweiske.de/kill zombies with gdb and wait-for-childChristian Weiske86400900900 <link rel="stylesheet" href="https://p.cweiske.de/css/embed.css"/> <div class="phork" id="425"> <div class="phork-file"> <div class="phork-content"> <div class="document"> Taken from <a class="reference external" href="http://xmodulo.com/how-to-find-and-kill-zombie-processes.html">http://xmodulo.com/how-to-find-and-kill-zombie-processes.html</a> </div> </div> <div class="phork-meta"> <a href="https://p.cweiske.de/425/rev-raw/94601e4a956422697925cfa58b8e4d57bc74d143/README.rst" style="float: right">view raw source</a> <a href="https://p.cweiske.de/425#README.rst">README.rst</a> </div> </div> <div class="phork-file"> <div class="phork-content"> <style type="text/css">/** * GeSHi (C) 2004 - 2007 Nigel McNie, 2007 - 2008 Benny Baumann * (http://qbnz.com/highlighter/ and http://geshi.org/) */ .bash .de1, .bash .de2 {font: normal normal 1em/1.2em monospace; margin:0; padding:0; background:none; vertical-align:top;} .bash {font-family:monospace;} .bash .imp {font-weight: bold; color: red;} .bash li, .bash .li1 {color: #DDD;} .bash .ln {width:1px;text-align:right;margin:0;padding:0 2px;vertical-align:top;} .bash .kw1 {color: #000000; font-weight: bold;} .bash .kw2 {color: #c20cb9; font-weight: bold;} .bash .kw3 {color: #7a0874; font-weight: bold;} .bash .co0 {color: #666666; font-style: italic;} .bash .co1 {color: #800000;} .bash .co2 {color: #cc0000; font-style: italic;} .bash .co3 {color: #000000; font-weight: bold;} .bash .es1 {color: #000099; font-weight: bold;} .bash .es2 {color: #007800;} .bash .es3 {color: #007800;} .bash .es4 {color: #007800;} .bash .es5 {color: #780078;} .bash .es_h {color: #000099; font-weight: bold;} .bash .br0 {color: #7a0874; font-weight: bold;} .bash .sy0 {color: #000000; font-weight: bold;} .bash .st0 {color: #ff0000;} .bash .st_h {color: #ff0000;} .bash .nu0 {color: #000000;} .bash .re0 {color: #007800;} .bash .re1 {color: #007800;} .bash .re2 {color: #007800;} .bash .re4 {color: #007800;} .bash .re5 {color: #660033;} .bash span.xtra { display:block; } </style><div class="code"><table class="bash"><tbody><tr class="li1"><td class="ln"><pre class="de1">1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 </pre></td><td class="de1"><pre class="de1">#!/bin/bash ################################################################## # Script: Zombie Slayer # Author: Mitch Milner # Date: 03/13/2013 ---> A good day to slay zombies # # Requirements: yum install gdb # permissions to attach to the parent process # # This script works by using a debugger to # attach to the parent process and then issuing # a waitpid to the dead zombie. This will not kill # the living parent process. ##################################################################   clear # Wait for user input to proceed, give user a chance to cancel script echo "***********************************************************" echo -e "This script will terminate all zombie process." echo -e "Press [ENTER] to continue or [CTRL] + C to cancel:" echo "***********************************************************" read cmd_string echo -e "\n"   # initialize variables intcount=0 lastparentid=0   # remove old gdb command file rm -f /tmp/zombie_slayer.txt   # create the gdb command file echo "***********************************************************" echo "Creating command file..." echo "***********************************************************" ps -e -o ppid,pid,stat,command | grep Z | sort | while read LINE; do intcount=$((intcount+1)) parentid=`echo $LINE | awk '{print $1}'` zombieid=`echo $LINE | awk '{print $2}'` verifyzombie=`echo $LINE | awk '{print $3}'`   # make sure this is a zombie file and we are not getting a Z from # the command field of the ps -e -o ppid,pid,stat,command if [ "$verifyzombie" == "Z" ] then if [ "$parentid" != "$lastparentid" ] then if [ "$lastparentid" != "0" ] then echo "detach" >> /tmp/zombie_slayer.txt fi echo "attach $parentid" >> /tmp/zombie_slayer.txt fi echo "call waitpid ($zombieid,0,0)" >> /tmp/zombie_slayer.txt echo "Logging: Parent: $parentid Zombie: $zombieid" lastparentid=$parentid fi done if [ "$lastparentid" != "0" ] then echo "detach" >> /tmp/zombie_slayer.txt fi   # Slay the zombies with gdb and the created command file echo -e "\n\n" echo "***********************************************************" echo "Slaying zombie processes..." echo "***********************************************************" gdb -batch -x /tmp/zombie_slayer.txt echo -e "\n\n" echo "***********************************************************" echo "Script complete." echo "***********************************************************"  </pre></td></tr></tbody></table></div> </div> <div class="phork-meta"> <a href="https://p.cweiske.de/425/rev-raw/94601e4a956422697925cfa58b8e4d57bc74d143/zombieslayer.sh" style="float: right">view raw source</a> <a href="https://p.cweiske.de/425#zombieslayer.sh">zombieslayer.sh</a> </div> </div> </div>