Helmut,
> > Perl 5.10.1 from FreeBSD ports, even with multithreading enabled,
> > survives abuse by your sample message.
>
> Seems indeed that with 5.10 it does not core. As even OpenBSD 4.5 ships
> with 5.10 I don't see any reason why I shouldn't upgrade all machines.
Yes, that should help.
$ man perl5100delta
Regular expressions optimisations
Engine de-recursivised
The regular expression engine is no longer recursive, meaning that
patterns that used to overflow the stack will either die with
useful explanations, or run to completion, which, since they were
able to blow the stack before, will likely take a very long time to
happen. If you were experiencing the occasional stack overflow (or
segfault) and upgrade to discover that now perl apparently hangs
instead, look for a degenerate regex. (Dave Mitchell)
Mark
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