Messages in this thread | | | From | Denis Vlasenko <> | Subject | 2.4 -> 2.5 breakage (rpciod?) | Date | Mon, 8 Apr 2002 14:28:46 -0200 |
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This is a testcase made from a shutdown script. Note double ps invocation at the bottom in zz.
Testcase kills all processes nicely on a 2.4 in preparation to umount+reboot. However on 2.5.7 it shows erratic behavior: killall5 -15 seems to disturb rpciod for a moment, this shows as "/bin/ps: I/O error" at the first ps after kill commands. However, after user presses <Enter> second ps executes just fine.
Without this pause (a few seconds while user hits <Enter>) it is impossible to continue (e.g. do a reboot): even sleep N won't work ("/bin/sleep: I/O error"). You can see this while beeper tries to make 1 second pauses.
Additional notes: * I use simpleinit from util-linux, hence kill -TSTP 1 or else simpleinit will try to spawn new gettys. * I run an NFS-mounted box. Have to kill dhcpcd first or else eth0 gets deconfigured with catastrophic results. * I suspect this bug manifests itself over NFS only.
testcase ======== #!/bin/sh PATH=/sbin:/usr/sbin:/bin:/usr/bin setsid ./zz </dev/null >/dev/null 2>&1 3>&1 & while true; do sleep 32000 done
zz == #!/bin/sh # start annoying beeping sound :-) ./beeper >/dev/console 2>&1 & echo "* Stop getty spawning" >/dev/console kill -TSTP 1 echo "* Running processes:" >/dev/console ps -AH e >/dev/console echo -n "* Press <Enter>:" >/dev/console; read junk </dev/console echo " kill: dhcpcd" >/dev/console killall -KILL dhcpcd 2>/dev/null sleep 2 echo " term: everybody" >/dev/console killall5 -15 2>/dev/null # won't work with -TERM sleep 2 echo " kill: everybody" >/dev/console killall5 -9 2>/dev/null # won't work with -KILL sleep 2 echo "* Running processes:" >/dev/console ps -AH e >/dev/console 2>&1 echo -n "* Press <Enter>:" >/dev/console; read junk </dev/console echo "* Running processes:" >/dev/console ps -AH e >/dev/console 2>&1 echo -n "* Press <Enter>:" >/dev/console; read junk </dev/console
beeper ====== #!/bin/sh while true; do echo -n " " sleep 1 done
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