[Bug 287302] www/mod_perl2: panic: MUTEX_LOCK (22) [Magic.xs:525] during global destruction.

From: <bugzilla-noreply_at_freebsd.org>
Date: Sun, 10 May 2026 14:37:57 UTC 
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=287302

--- Comment #7 from eserte12@yahoo.de ---
It's not only a problem with mod_perl2. It can happen also when using normal
perl. An example while running the test suite of
DROLSKY/Log-Dispatch-2.71.tar.gz on a freebsd16 system:

    ...
    panic: MUTEX_LOCK (22) [Magic.xs:525] during global destruction.
    t/syslog-lock-without-preloaded-threads.t .. 
    Dubious, test returned 22 (wstat 5632, 0x1600)
    All 1 subtests passed 
    panic: MUTEX_LOCK (22) [Magic.xs:525] during global destruction.
    t/syslog-threads.t ......................... 
    Dubious, test returned 22 (wstat 5632, 0x1600)
    All 1 subtests passed 
    t/syslog.t ................................. ok
    ...

However it seems that setting the environment variable
B_HOOKS_ENDOFSCOPE_IMPLEMENTATION=PP helps here, too.

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