Well, the reason I'm thinking resource limit is that this only occurs when busy, and then a couple of seconds later it works fine again.

The docs for select indicate that this is the select(2) system call, but the docs for that say the following:

...On error, -1 is returned, and errno is set appropriately;...

and lists the following errors:

• EBADF
  An invalid file descriptor was given in one of the sets. (Perhaps a file descriptor that was already closed, or one on which an error has occurred.)
• EINTR
  A signal was caught; see signal(7).
• EINVAL
  nfds is negative or the value contained within timeout is invalid.
• ENOMEM
  unable to allocate memory for internal tables.

... none of which correspond to the no child processes, and leaving me at a bit of a loss

---

In reply to Re^2: No child processes - system limit? by clinton
in thread No child processes - system limit? by clinton

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! —

• How do I compose an effective node title?
• How do I post a question effectively?
• Markup in the Monastery

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:
	&		&
	<		&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.