[Samba] libgpfs.so

Michael Tokarev mjt at tls.msk.ru
Thu Apr 13 11:29:22 UTC 2023

I'm trying to debug a phantom I/O error which I mentioned before
(https://lists.samba.org/archive/samba/2023-March/244431.html -
it turned out it has nothing to do with kernel oplocks).

And noticed samba is regularly tries to load libgpfs.so.

This is done in gpfswrap_init() in lib/util/gpfswrap.c, which
is used in vfs_gpfs.c (understandable) *and* in lib/util/debug.c.
The latter added by

commit f9e92fc2b0dc4e5c613cf795952e3484f50388ac
Author: Christof Schmitt <cs at samba.org>
Date:   Thu Feb 19 16:32:44 2015 -0700

     debug: Add GPFS tracing backend

Curious why samba is constantly trying to load this lib,
unconditionally.. is it really needed? What does GPFS do
for debugging?



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