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 3E446383128B; Wed, 25 May 2022 23:08:27 +0000 (GMT)
DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 3E446383128B
From: "cvs-commit at gcc dot gnu.org" <sourceware-bugzilla@sourceware.org>
To: glibc-bugs@sourceware.org
Subject: [Bug string/29127] Incomplete backport causes
 tst-{strncmp,wcsncmp}-rtm to fail
Date: Wed, 25 May 2022 23:08:27 +0000
X-Bugzilla-Reason: CC
X-Bugzilla-Type: changed
X-Bugzilla-Watch-Reason: None
X-Bugzilla-Product: glibc
X-Bugzilla-Component: string
X-Bugzilla-Version: 2.35
X-Bugzilla-Keywords: 
X-Bugzilla-Severity: normal
X-Bugzilla-Who: cvs-commit at gcc dot gnu.org
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: security-
X-Bugzilla-Changed-Fields: 
Message-ID: <bug-29127-131-rM6no4fMj7@http.sourceware.org/bugzilla/>
In-Reply-To: <bug-29127-131@http.sourceware.org/bugzilla/>
References: <bug-29127-131@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
X-BeenThere: glibc-bugs@sourceware.org
X-Mailman-Version: 2.1.29
Precedence: list
List-Id: Glibc-bugs mailing list <glibc-bugs.sourceware.org>
List-Unsubscribe: <https://sourceware.org/mailman/options/glibc-bugs>,
 <mailto:glibc-bugs-request@sourceware.org?subject=unsubscribe>
List-Archive: <https://sourceware.org/pipermail/glibc-bugs/>
List-Help: <mailto:glibc-bugs-request@sourceware.org?subject=help>
List-Subscribe: <https://sourceware.org/mailman/listinfo/glibc-bugs>,
 <mailto:glibc-bugs-request@sourceware.org?subject=subscribe>
X-List-Received-Date: Wed, 25 May 2022 23:08:27 -0000

https://sourceware.org/bugzilla/show_bug.cgi?id=3D29127

--- Comment #3 from cvs-commit at gcc dot gnu.org <cvs-commit at gcc dot gn=
u.org> ---
The release/2.34/master branch has been updated by Sunil Pandey
<skpgkp2@sourceware.org>:

https://sourceware.org/git/gitweb.cgi?p=3Dglibc.git;h=3D83ae8287c1c3009459f=
f29241b647ff61363b22c

commit 83ae8287c1c3009459ff29241b647ff61363b22c
Author: Noah Goldstein <goldstein.w.n@gmail.com>
Date:   Tue Feb 15 08:18:15 2022 -0600

    x86: Fallback {str|wcs}cmp RTM in the ncmp overflow case [BZ #29127]

    Re-cherry-pick commit c627209832 for strcmp-avx2.S change which was
    omitted in intial cherry pick because at the time this bug was not
    present on release branch.

    Fixes BZ #29127.

    In the overflow fallback strncmp-avx2-rtm and wcsncmp-avx2-rtm would
    call strcmp-avx2 and wcscmp-avx2 respectively. This would have
    not checks around vzeroupper and would trigger spurious
    aborts. This commit fixes that.

    test-strcmp, test-strncmp, test-wcscmp, and test-wcsncmp all pass on
    AVX2 machines with and without RTM.

    Co-authored-by: H.J. Lu <hjl.tools@gmail.com>
    (cherry picked from commit c6272098323153db373f2986c67786ea8c85f1cf)

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