Beefy Boxes and Bandwidth Generously Provided by pair Networks
good chemistry is complicated,
and a little bit messy -LW

Comment on

( #3333=superdoc: print w/ replies, xml ) Need Help??

I am getting the below error only when I try to create child process using fork in the code mentioned below

foreach $cmd(@commands) { if($cmd =~ /CGDCONT/i){ unless (fork) { eval $cmd; if ($@) { print "When executing: $cmd\nFollowing error occured:$@\ +n"; } exit; } } else{ eval $cmd; if ($@) { print "When executing: $cmd\nFollowing error occured: $@\n +"; } } }

Error msg when I run the above code:

Engine::_Execute(..\..\perl\modules/ 122: unless (fork) { DB<1> s Bizarre SvTYPE [37] at ..\..\perl\modules/ line 122. Engine::_Execute(C:/Perl/lib/ 97: { local $@; require Carp::Heavy; } # XXX fix require to not clea +r $@?

It means there are some localized scalar variables are trying to restore in a child process hence throwing error

"Attempt to free unreferenced scalar"

There is some modules where is used. I replaced all the places of carp with warn and tried but no luck still it is showing the same. Please let me know how to debug this issue.

In reply to Forking Problem: Attempt to free unreferenced scalar by srlbharu

Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post; it's "PerlMonks-approved HTML":

  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • Outside of code tags, you may need to use entities for some characters:
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.
  • Log In?

    What's my password?
    Create A New User
    and the web crawler heard nothing...

    How do I use this? | Other CB clients
    Other Users?
    Others lurking in the Monastery: (13)
    As of 2015-01-29 01:04 GMT
    Find Nodes?
      Voting Booth?

      My top resolution in 2015 is:

      Results (227 votes), past polls