From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 4395F28725B for ; Mon, 24 Nov 2025 15:07:24 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1763996844; cv=none; b=tlZ5fY/KiScXrWwtowW1IF2E/VX8A8KSTW+wbSEo9CWm4Qx0zoT8EBV5W6LPNzzmni8GKN8FGb6I/DMzngM1W1KyPtwpbQfiW9/ahQ4/RQtd6csRTbtrI95nIX8AL6qpvZx1UYxn+SoL1ZLnyCaL5Ae2g4m07ayyf4SL4FeEkJg= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1763996844; c=relaxed/simple; bh=KWfvD5bbHnsXFh/tjkiC+gj921RN1CFu/6sCcsqk0UQ=; h=Date:From:To:Cc:Subject:Message-ID:MIME-Version:Content-Type; b=Mc2oo4ZX7OlGajIX3Xkm+5hnkSJ6huB+G108O+XpoDeS+STgQS8bbXHbrYvTZ++KS9Vb+Gur9ixsLhj42oqIOZWs6X/kjEyzTldtP8WwdYUdOBrWI8ix5KdsIPLvH++tXejdCDS+o70e5+PCGEQVwTXZUhd9C3GfisESuoizsmU= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=YiVXH5Qj; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="YiVXH5Qj" Received: by smtp.kernel.org (Postfix) with ESMTPSA id C0421C4CEF1; Mon, 24 Nov 2025 15:07:23 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1763996843; bh=KWfvD5bbHnsXFh/tjkiC+gj921RN1CFu/6sCcsqk0UQ=; h=Date:From:To:Cc:Subject:From; b=YiVXH5QjP/Fy0mZV+CRfu6i4jGri/n5CRZ45irE8Yfb1g6ld+Q2t2D2sTLQ6DbFSH l2oAU7HbuaLLk87zodFgnYydPnBXpkhojsh7o4AWBcyCKo74/9kt0kF+U1nqFMWvQA /Dv4v2uT6BeWR4IX0Mvr63WHRJR2cp7M+Uo2Y9NVd7XMcZkkHHahE3iLxnCyB1YHav 8Z4Awz3c2u2D/F6p2W6HqIKLgcyaBY5j4jlb/r0DMgi5f+1o37jLPf6gB4JpKP+4uL 6Sjx4sFVPkVBQu+IAfC3CojufwQf5Tn6GPQFMuRhZKvM8ubzlxvI/Rx62lewBXSFTZ jy4v3wX3yEZaw== Date: Mon, 24 Nov 2025 07:07:22 -0800 From: Jakub Kicinski To: Kuniyuki Iwashima Cc: "netdev@vger.kernel.org" Subject: [TEST] so_peek_off flakes on new NIPA systems Message-ID: <20251124070722.1e828c53@kernel.org> Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Hi Kuniyuki! We upgraded our system for NIPA recently to netdev foundation one=20 (as you know). Looks like net/af_unix: so_peek_off is flaking on both debug and non-debug builds quite a lot with: # # so_peek_off.c:149:two_chunks_overlap_blocking:Expected -1 (-1) !=3D byt= es (-1) # # two_chunks_overlap_blocking: Test terminated by assertion # # FAIL so_peek_off.stream.two_chunks_overlap_blocking https://netdev-ctrl.bots.linux.dev/logs/vmksft/net-dbg/results/399761/134-s= o-peek-off/stdout The newer system is 10-20% faster it's also moved from AWS Linux to Fedora. But I suspect the real reason is that our old system had quietly broken compilation of af_unix selftests because of Wflex-array-member-not-at-end which AWS Linux gcc doesn't understand: gcc: error: unrecognized command-line option =E2=80=98-Wflex-array-member-n= ot-at-end=E2=80=99 make: *** [../../lib.mk:222: /home/virtme/testing/wt-1/tools/testing/selfte= sts/net/af_unix/diag_uid] Error 1 So effectively we're been running some old copy of af_unix tests since this flag was added.