For documentation porpoises and to help a future troubled soul with a similar ugly bug. This is the walk around I used to handle the problem.

I still think there is something buggy in xubuntu, that causes the WINCH signals to pile up if they come too quick one after another, so I had to introduce a mechanism to process one by one and give it enough time to each process to finish

#$SIG{'WINCH'} = sub {
#    if (!$CONNECTED) {
#        return 1;
#    }
#    while (!$EXP->slave) {
#        select(undef, undef, undef, 0.1);
#    };
#    $EXP->slave->clone_winsize_from(\*STDIN);
#    kill 'WINCH'=>$EXP->pid if $EXP->pid;
#};

sub winch {
    $SIG{'WINCH'} = undef;
    select(undef, undef, undef, 0.2);
    while (!$EXP->slave) {
        select(undef, undef, undef, 0.1);
    };
    $EXP->slave->clone_winsize_from(\*STDIN);
    kill 'WINCH'=>$EXP->pid if $EXP->pid;
    $SIG{'WINCH'} = \&winch;
    return 1;
}
$SIG{'WINCH'} = \&winch;

[download]

In reply to Re: application crash during WINCH Signal by hanspr
in thread application crash during WINCH Signal by hanspr

Title:
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!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • 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, details, 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, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            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.