Not only when it dies unexpectedly. I had a whole lot of cases of normal exits where it also failed to flush the session, which is why I recommend to always manually call $session->flush().

The CGI::Session maintainers know of these problems, and encourage you to not rely on auto flushing.

In reply to Re^3: CGI::Session flush() functions by moritz
in thread CGI::Session flush() functions by priti

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