It crashes for me also, but changing mycmp to sub mycmp { length($main::b) <=> length($main::a) } seems to fix it. I think this is a bug.

update: This is on v5.8.3 built for i386-linux-thread-multi. I just tried it again and I can't get your original version to crash. Weird.

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In reply to Re: Perl threads sort test program crashes by PodMaster
in thread Perl threads sort test program crashes by eyepopslikeamosquito

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