Thanks Zaxo, castaway and liz for replying. After more investigation, now I clearly believe that it is detach() now broken. The version I used is Win32, but the bug could well be across all platforms. Although as liz pointed out, the threading implementation is platform specific, I believe, most likely what broken is the common wrapper on top of the threading.

Theoritically, there was no need for detach() in my code. I added them against my own will, as it was a must under 5.8.1 thread. Under 5.8.1, there was a huge memory leak without detach(), making it even worse, Perl didn't check null pointer returned from malloc, and after a while, once the memory leak is big enough, and the program can no longer allocate memory, the script just crashes.

I tried to remove those detach(), and ran my script again, it seems fine, and no longer crashes like 5.8.1. But as I pointed out, now detach() core dumps.

This is really a warning sign, and I am really concerned about the quality of, not just a particular release, but their development and verification process. To be frank, it is a big surprise to see that, they didn't carefully test some basic cases in the area, which they applied some big fixes.

I am not worried about couple of bugs, but I can become really concerned if there are evidences showing that the way they control the quality of releases is flawed, and their verification (testing) process is flawed.

We cannot control the quality of other people's work, but at least I can report the problem, and help them a little bit.

In reply to Re: Re: Perl 5.8.2 thread is much worse by pg
in thread Perl 5.8.2 thread is much worse by pg

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.