[Bug 273956] KERN_PROC_VMMAP does not read all mapped files

From: <bugzilla-noreply_at_freebsd.org>
Date: Thu, 21 Sep 2023 17:13:34 UTC
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=273956

--- Comment #15 from Ed Maste <emaste@freebsd.org> ---
(In reply to Paul Floyd from comment #14)
> How have things changed between 13.2 and 14.0 to cause this?

I don't see anything kernel related that's different between 13.2 and 14.0. Is
it possible that we had a larger .data section when building for 13.2? If the
PT_LOAD is larger than a page I think we'd have a rw- mapping of type vn.

If I understand correctly Valgrind doesn't actually check the contents of the
mappings, it just wants to check that they exist? If that's the case I think
it'd be reasonable to just relax the check.

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