Package: upstart
Version: 0.6.3-1
Severity: normal
While trying to write some upstart /etc/init .conf files, I noticed that if
I got the "expect daemon/fork" line incorrect then init would get in a
messed up state, causing any subsequent "initctl start" or "initctl stop"
commands to hang on the .conf file in question, even after the bug was
fixed. The only solution I could find was to rename the script. I suspect
rebooting would work to but I'm in a position to reboot right now.
Clearly it was my fault that I got the "expect" line wrong, but even so I
don't think upstart should hang when talking about that job for then
on. There needs to be some way to reset it or not let it get in that state
at all.
Here's a small test case I made. I was unable to get it to hang with just an
"exec" line. I had to put it in a "script" and then call an external
program.
cat > fail.conf <<EOF
expect fork
script
/bin/true
sleep 10&
end script
EOF
If I try to start the job now it prints a PID that doesn't match up with the
correct PID. On my system I got:
# initctl start fail
fail start/running, process 20121
# ps aux | grep sleep
root 20122 0.0 0.0 3804 480 ? S 03:07 0:00 sleep 10
At this point any attempt to "initctl stop fail" will hang. If I Control-C a
hung "stop" and try again it will say it's already stopped, but the state
doesn't show up correctly:
# initctl status fail
fail stop/killed, process 20121
Attempting to start it again also hangs. I couldn't find any way out of this
state except to reboot, or rename the fail.conf file to fail1.conf and
continue testing under that name.
-- System Information:
Debian Release: squeeze/sid
APT prefers testing
APT policy: (990, 'testing'), (500, 'unstable'), (1, 'experimental')
Architecture: amd64 (x86_64)
Kernel: Linux 2.6.33-2-amd64 (SMP w/8 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Versions of packages upstart depends on:
ii initscripts 2.87dsf-10 scripts for initializing and shutt
ii libc6 2.10.2-6 Embedded GNU C Library: Shared lib
ii libdbus-1-3 1.2.24-1 simple interprocess messaging syst
ii sysv-rc 2.87dsf-10 System-V-like runlevel change mech
ii sysvinit-utils 2.87dsf-10 System-V-like utilities
upstart recommends no packages.
upstart suggests no packages.
-- no debconf information
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