From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <sourceware-bugzilla@sourceware.org>
Received: by sourceware.org (Postfix, from userid 48)
	id 56A943858D37; Tue,  3 Jan 2023 18:00:26 +0000 (GMT)
DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 56A943858D37
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=sourceware.org;
	s=default; t=1672768826;
	bh=pERBSTzTJtcIHl4hL05GtHK2nvAobgYfdPabRi5MjMQ=;
	h=From:To:Subject:Date:In-Reply-To:References:From;
	b=cEJrkzpsJJ9W3aehYY67rGk0kIKTH31Ws6uQ2+5Sd1h64kxs8OTFcrt5l30pNyusQ
	 BIP8iDEkIMGm9HN19auWCYcVIp69BpoGYrkQOscgjhkdVw2LsA2PMIBTEF06A8QzQC
	 yPpIBAPl19oOu1ZzxahIDUt1Olsof39aiqLPArf8=
From: "goldstein.w.n at gmail dot com" <sourceware-bugzilla@sourceware.org>
To: glibc-bugs@sourceware.org
Subject: [Bug dynamic-link/29953] Invalid x86_non_temporal_threshold without
 cache info
Date: Tue, 03 Jan 2023 18:00:26 +0000
X-Bugzilla-Reason: CC
X-Bugzilla-Type: changed
X-Bugzilla-Watch-Reason: None
X-Bugzilla-Product: glibc
X-Bugzilla-Component: dynamic-link
X-Bugzilla-Version: 2.36
X-Bugzilla-Keywords: 
X-Bugzilla-Severity: minor
X-Bugzilla-Who: goldstein.w.n at gmail dot com
X-Bugzilla-Status: UNCONFIRMED
X-Bugzilla-Resolution: 
X-Bugzilla-Priority: P2
X-Bugzilla-Assigned-To: unassigned at sourceware dot org
X-Bugzilla-Target-Milestone: ---
X-Bugzilla-Flags: 
X-Bugzilla-Changed-Fields: 
Message-ID: <bug-29953-131-PRYn8miq9L@http.sourceware.org/bugzilla/>
In-Reply-To: <bug-29953-131@http.sourceware.org/bugzilla/>
References: <bug-29953-131@http.sourceware.org/bugzilla/>
Content-Type: text/plain; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable
X-Bugzilla-URL: http://sourceware.org/bugzilla/
Auto-Submitted: auto-generated
MIME-Version: 1.0
List-Id: <glibc-bugs.sourceware.org>

https://sourceware.org/bugzilla/show_bug.cgi?id=3D29953

--- Comment #7 from Noah Goldstein <goldstein.w.n at gmail dot com> ---
(In reply to H.J. Lu from comment #6)
> (In reply to Noah Goldstein from comment #5)
> > We also have a bug with `x86_rep_movsb_threshold` which requires at lea=
st
> > 128 (2x AVX512 aligning vectors).
>=20
> x86_rep_movsb_threshold should be fine.  minimum_rep_movsb_threshold shou=
ld
> be set and checked properly.

Seems like the exact same issue no?

```
  tunable_size =3D TUNABLE_GET (x86_rep_movsb_threshold, long int, NULL);
  if (tunable_size > minimum_rep_movsb_threshold)
    rep_movsb_threshold =3D tunable_size;

  // if tunable_size was zero, rep_movsb_threshold =3D=3D 0

  ...

  // Won't clamp, will leave x86_rep_movsb_threshold at zero.
  TUNABLE_SET_WITH_BOUNDS (x86_rep_movsb_threshold, rep_movsb_threshold,
                           minimum_rep_movsb_threshold, SIZE_MAX);




```

--=20
You are receiving this mail because:
You are on the CC list for the bug.=