On Wed, 2021-10-06 at 16:34 +0100, Jeremy Harris via Exim-users wrote:
> That implies it will try to coredump, I think. Can you
> do whatever magic Arch needs for coredumps from suid programs,
> compile a version with "-O0 -g" (or -ggdb), get a coredump,
> and get the stacktrace ("bt" in gdb)? Then we have a change of
> guessing
> what was being free()d.
Yup, found it. It had nothing to do with TLS - it's in the PAM
authentication. It came up on the list (I think) too, that PAM tries to
free stuff not allocated with malloc() in exim - changing to dovecot
authentication (which then uses pam) solved my problem.
Thanks and regards,
Torsten
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