Hello.

Recently I found a problem, looks like perl bug, posted here: RT#122112 (proof of concept code attached).
In short: "refcnt: fd -1 < 0" assertion triggered.
But this is just bug report, and I need to find workaround for old/current perl versions (bug reproducible in 5.12-5.20).

It seems that any workflow like that: 

eval {
  local $SIG{ALRM}=sub{die};
  alarm 10;
  # fork child
  # exec in child (exec made in child to separate exec failures from p
+rogram exit code)
};

[download]
_might_ be affected, when ALARM triggered. currently this happening in MIME::Lite for us (related code).

Searching for possible solution to execute external program, with ALRM timeout, without risk running into this.

In reply to Working around refcnt assertion failure in perl by vsespb

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