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From: "nsz at gcc dot gnu.org" <sourceware-bugzilla@sourceware.org>
To: glibc-bugs@sourceware.org
Subject: [Bug dynamic-link/19329] dl-tls.c assert failure at concurrent
 pthread_create and dlopen
Date: Thu, 16 Sep 2021 14:42:37 +0000
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https://sourceware.org/bugzilla/show_bug.cgi?id=3D19329

--- Comment #41 from Szabolcs Nagy <nsz at gcc dot gnu.org> ---
i'm trying to fix the ABBA deadlock by introducing a new
lock into dlopen that protects tls state and gets released
before init functions are run. using that lock at thread
creation would fix the issue.

this only requires a small amount of changes, but it seems
to be difficult to ensure that the new lock is released on
all failure paths within _dl_open_worker (which sometimes
uses longjmp for error handling).

--=20
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