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[Octave-bug-tracker] [bug #46315] Assertion Failed - profiler crash on e


From: Lachlan Andrew
Subject: [Octave-bug-tracker] [bug #46315] Assertion Failed - profiler crash on every 2nd time execution halts
Date: Fri, 8 Jul 2016 16:04:43 +0000 (UTC)
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:43.0) Gecko/20100101 Firefox/43.0

Update of bug #46315 (project octave):

              Depends on:                         => bugs #39587            

    _______________________________________________________

Follow-up Comment #5:

The problem seems to be related to bug #39587.  There used to be an


assert (active_fcn != call_tree);


in profile_data_accumulator::exit_function, but that was removed to avoid the
above bug.  If the latter function is called when the profiler is active,
whatever triggered bug #39587 will trigger the current bug.

The simple work-around of replacing


  if (is_active ())
    add_current_time ();


in profile_data_accumulator::exit_function by


  if (is_active () && active_fcn != call_tree)
    add_current_time ();


prevents the assertion from being triggered, but for some reason the second
call to errtest_script has an extra call to exit_function(), which sets
active_fcn = 0.  This causes a seg fault the third time the script is run.

Time for some sleep now...

    _______________________________________________________

Reply to this item at:

  <http://savannah.gnu.org/bugs/?46315>

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