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Investigate why we get zombie processes sometimes #37

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kjetilly opened this issue Apr 23, 2013 · 2 comments
Open

Investigate why we get zombie processes sometimes #37

kjetilly opened this issue Apr 23, 2013 · 2 comments
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Is this an Ubuntu-bug? A apache bug? Where does it come from? Can we fix it? Seems to occur very spuriously.
@ghost ghost assigned kjetilly Apr 23, 2013
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Should probably investigate around trell_master wait and signal handling.

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Advice from Chris D. (from wikipedia): On modern UNIX-like systems (that comply with SUSv3 specification in this respect), the following special case applies: if the parent explicitly ignores SIGCHLD by setting its handler to SIG_IGN (rather than simply ignoring the signal by default) or has the SA_NOCLDWAIT flag set, all child exit status information will be discarded and no zombie processes will be left.

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