I have this memory of Perl limiting how deep subroutine recursion could go, but the following test suggests not: 
perl -E 'sub f{say $_[0] unless $_[0] % 10000;exit if $_[0] > 30000;f(
+$_[0]+1)};f(1)'

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on perl 5.12 and 5.20, on windows and NetBSD, they both run (and without apparent limit, if you remove the "exit")

I got bit when debugging a recursive sub, and my perl process hard-froze my Windows 7 machine. The mouse moved but nothing else worked, not ctrl-alt-del, not "Fn-Sleep". I waited about 10 minutes, thinking it would run out of memory and exit, but the machine just stayed frozen :-(

Just curious if there was a recursion limit, and if so, when was it lifted?

Next day addendum - Thanks for all the replies! I've encountered the runtime warning, and the regexp recursion limit, and the debugger warnings all in the past, and I must have confabulated them. You all got ++ votes from me for your reminders.

In reply to No recursion depth limit? by Yary

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