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From: "mark at klomp dot org" <sourceware-bugzilla@sourceware.org>
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Subject: [Bug libc/26022] valgrind gives me error when fwprintf in stderr
Date: Thu, 04 Jun 2020 12:19:24 +0000
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https://sourceware.org/bugzilla/show_bug.cgi?id=3D26022

--- Comment #5 from Mark Wielaard <mark at klomp dot org> ---
(In reply to Claudio Daffra from comment #4)
>=20
> s.o : macOS 10.15.5 (19F96)
>=20
>=20
> with --leak-check=3Dfull valgrind gives me many other errors.
> this occurs in macosx only,nothing to do with streams.

I think the problem is that you are not using glibc on macosx. The libc
implementation you are using on macosx seems to have various bugs and/or le=
aks,
or might not support __libc_freeres to coordinate with valgrind. You might =
want
to report those issues to apple, assuming they provided the libc you are us=
ing
on macOS.

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