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/asterisk/trunk/lib/python/asterisk/sippversion.py <https://reviewboard.asterisk.org/r/3258/#comment20564> The problem you mentioned would only occur when both stdout and stderr have their own pipe. Like this: >>> x = Popen('(seq 100000 >&2; seq 10)', shell=True, stdout=PIPE, stderr=PIPE) >>> for y in x.stdout: ... print y ... (infinite wait) In the above case, stderr is redirected to stdout, so that problem doesn't occur. However, the process is never reaped. An: sipp_process.wait() should take care of that. - wdoekes On Feb. 24, 2014, 5:55 p.m., Scott Griepentrog wrote: > > ----------------------------------------------------------- > This is an automatically generated e-mail. To reply, visit: > https://reviewboard.asterisk.org/r/3258/ > ----------------------------------------------------------- > > (Updated Feb. 24, 2014, 5:55 p.m.) > > > Review request for Asterisk Developers. > > > Repository: testsuite > > > Description > ------- > > While running the testsuite I noticed it would occasionally fail to start, > complaining of being unable to kill sipp (code introduced svn r4677 and > https://reviewboard.asterisk.org/r/3198/). I tracked this back to an > instance of sipp that was used to check the version number, and revised the > method used to read the stdout per python manual "Warning Use communicate() > rather than .stdin.write, .stdout.read or .stderr.read to avoid deadlocks due > to any of the other OS pipe buffers filling up and blocking the child > process.". The version check process was then cleanly terminated before > checking for sipp instances leftover from a previous test run via pidof sipp. > > NOTE: other instances where popen.stdout is used may exist in the testsuite > that could be causing similar random issues. > > > Diffs > ----- > > /asterisk/trunk/lib/python/asterisk/sippversion.py 4735 > > Diff: https://reviewboard.asterisk.org/r/3258/diff/ > > > Testing > ------- > > > Thanks, > > Scott Griepentrog > >
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