This is an error having to do with a combination of Upstart and supervisor. Upstart works fine on other services, and supervisor works great on its own.
When I start supervisor in the foreground, and start the job (without an expect value), the operation blocks. When I start the supervisor process as a daemon, it'll block with both "expect daemon" and "expect fork". I've also tried "expect stop", for good measure. When I try the instructions under "6.12.4 How to Establish Fork Count" ( http://upstart.ubuntu.com/cookbook/#expect) while using supervisor in daemon mode, I get a massive number of clones up and until the process is killed: $ sudo egrep "\<(fork|clone)\>\(" /tmp/strace.log 18916 clone(child_stack=0, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x7ffdae9799d0) = 18917 18917 clone(child_stack=0, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x7fa9910d39d0) = 18918 18916 clone(child_stack=0, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x7ffdae9799d0) = 18919 18919 clone(child_stack=0, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x7ffdae9799d0) = 18920 18919 clone( <unfinished ...> 18919 clone( <unfinished ...> 18919 clone( <unfinished ...> 18919 clone( <unfinished ...> 18923 clone( <unfinished ...> 18925 clone( <unfinished ...> 18922 clone( <unfinished ...> 18926 clone( <unfinished ...> 18927 clone( <unfinished ...> 18929 clone( <unfinished ...> 18928 clone( <unfinished ...> 18930 clone( <unfinished ...> 18926 clone( <unfinished ...> 18929 clone( <unfinished ...> 18926 clone( <unfinished ...> 18929 clone( <unfinished ...> 18935 clone( <unfinished ...> 18936 clone( <unfinished ...> 18924 clone(child_stack=0, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x7f3c797889d0) = 18939 18923 clone( <unfinished ...> 18939 clone( <unfinished ...> 18941 clone( <unfinished ...> 18922 clone( <unfinished ...> 18942 clone( <unfinished ...> 18941 clone( <unfinished ...> 18941 clone( <unfinished ...> 18946 clone( <unfinished ...> 18924 clone( <unfinished ...> 18923 clone( <unfinished ...> 18924 clone( <unfinished ...> 18922 clone( <unfinished ...> 18919 clone( <unfinished ...> 18919 clone( <unfinished ...> 18921 clone( <unfinished ...> 18954 clone( <unfinished ...> 18955 clone( <unfinished ...> 18956 clone( <unfinished ...> 18955 clone( <unfinished ...> 18955 clone( <unfinished ...> 18959 clone( <unfinished ...> 18953 clone(child_stack=0, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x7f5871a0b9d0) = 18961 18961 clone( <unfinished ...> 18921 clone( <unfinished ...> 18962 clone( <unfinished ...> 18964 clone( <unfinished ...> 18962 clone( <unfinished ...> 18962 clone( <unfinished ...> 18967 clone( <unfinished ...> 18953 clone( <unfinished ...> 18921 clone( <unfinished ...> 18919 clone( <unfinished ...> 18953 clone( <unfinished ...> 18971 clone( <unfinished ...> 18973 clone( <unfinished ...> 18919 clone( <unfinished ...> 18974 clone( <unfinished ...> 18976 clone( <unfinished ...> 18975 clone(child_stack=0, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x7f537bc059d0) = 18978 18974 clone( <unfinished ...> 18978 clone( <unfinished ...> 18980 clone( <unfinished ...> 18974 clone( <unfinished ...> 18982 clone(child_stack=0, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x7fdf0db9f9d0) = 18983 18981 clone( <unfinished ...> 18980 clone( <unfinished ...> 18980 clone( <unfinished ...> 18971 clone( <unfinished ...> 18986 clone( <unfinished ...> 18975 clone( <unfinished ...> 18971 clone( <unfinished ...> 18975 clone( <unfinished ...> 18919 clone( <unfinished ...> 18992 clone(child_stack=0, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x7f11233fd9d0) = 18993 18993 clone( <unfinished ...> 18994 clone( <unfinished ...> 18995 clone( <unfinished ...> 18994 clone( <unfinished ...> 18994 clone( <unfinished ...> 18998 clone( <unfinished ...> 18992 clone( <unfinished ...> 18920 clone( <unfinished ...> 19001 clone( <unfinished ...> 19002 clone( <unfinished ...> 19003 clone( <unfinished ...> 19002 clone( <unfinished ...> 19002 clone( <unfinished ...> 19006 clone( <unfinished ...> 18992 clone(child_stack=0x7f8e10847ff0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tidptr=0x7f8e108489d0, tls=0x7f8e10848700, child_tidptr=0x7f8e108489d0) = 19008 18920 clone( <unfinished ...> 18919 clone( <unfinished ...> 18919 clone( <unfinished ...> 18919 clone( <unfinished ...> 19011 clone( <unfinished ...> 19013 clone( <unfinished ...> 19014 clone( <unfinished ...> 19015 clone(child_stack=0, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x7f9d52dbe9d0) = 19016 19014 clone( <unfinished ...> 19014 clone( <unfinished ...> 19018 clone( <unfinished ...> 19011 clone( <unfinished ...> 19012 clone( <unfinished ...> 19021 clone( <unfinished ...> 19022 clone( <unfinished ...> 18919 clone( <unfinished ...> 19023 clone( <unfinished ...> 19022 clone( <unfinished ...> 19022 clone( <unfinished ...> 19027 clone( <unfinished ...> 19024 clone(child_stack=0, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x7f8e219879d0) = 19029 19029 clone( <unfinished ...> 19030 clone( <unfinished ...> 19031 clone( <unfinished ...> 19012 clone( <unfinished ...> 19030 clone( <unfinished ...> 19030 clone( <unfinished ...> 19035 clone( <unfinished ...> 19024 clone( <unfinished ...> 19012 clone( <unfinished ...> 18919 clone( <unfinished ...> 19024 clone( <unfinished ...> 19011 clone( <unfinished ...> 19039 clone( <unfinished ...> 19042 clone( <unfinished ...> 19043 clone( <unfinished ...> 19044 clone( <unfinished ...> 19043 clone( <unfinished ...> 19043 clone( <unfinished ...> 19047 clone( <unfinished ...> 19039 clone( <unfinished ...> 19039 clone( <unfinished ...> 18920 clone( <unfinished ...> 18919 clone(child_stack=0, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x7ffdae9799d0) = 19052 18919 clone( <unfinished ...> 19052 clone( <unfinished ...> 19054 clone( <unfinished ...> 19055 clone( <unfinished ...> 19056 clone( <unfinished ...> 19055 clone( <unfinished ...> 19055 clone( <unfinished ...> 19059 clone(child_stack=0, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x7fb5c74439d0) = 19060 19052 clone( <unfinished ...> 19053 clone( <unfinished ...> 19062 clone( <unfinished ...> 19063 clone( <unfinished ...> 19064 clone( <unfinished ...> 19063 clone( <unfinished ...> 19063 clone( <unfinished ...> 19067 clone( <unfinished ...> 19052 clone( <unfinished ...> 19053 clone( <unfinished ...> 19053 clone( <unfinished ...> Does anyone have any advice for what I'm missing? Dustin
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