From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from mails.dpdk.org (mails.dpdk.org [217.70.189.124]) by smtp.lore.kernel.org (Postfix) with ESMTP id 84105CD5BD1 for ; Thu, 28 May 2026 10:58:17 +0000 (UTC) Received: from mails.dpdk.org (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id 543F24021F; Thu, 28 May 2026 12:58:16 +0200 (CEST) Received: from fout-a5-smtp.messagingengine.com (fout-a5-smtp.messagingengine.com [103.168.172.148]) by mails.dpdk.org (Postfix) with ESMTP id 62EBA4003C for ; Thu, 28 May 2026 12:58:15 +0200 (CEST) Received: from phl-compute-09.internal (phl-compute-09.internal [10.202.2.49]) by mailfout.phl.internal (Postfix) with ESMTP id A2FC3EC01CC; Thu, 28 May 2026 06:58:14 -0400 (EDT) Received: from phl-frontend-03 ([10.202.2.162]) by phl-compute-09.internal (MEProxy); Thu, 28 May 2026 06:58:14 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=monjalon.net; h= cc:cc:content-transfer-encoding:content-type:content-type:date :date:from:from:in-reply-to:in-reply-to:message-id:mime-version :references:reply-to:subject:subject:to:to; s=fm3; t=1779965894; x=1780052294; bh=zvk+3/yRCQ6E54DknTSiKtR0qlLbCcZ5S/G1S9iJjP8=; b= EGAduBl1Lg3VP8Af2Kj6DdCiDtNO+BTuUu/S1ITj7ezoFH1Bx3meWjizl1B7frA/ lb859ucP76zOlnVahPaeuoybNYOSWubKx3IV/mfHguCrzoVNSu0jaKqgR700xSOu ejKj+W+k3x46MrfCc06HU+aVgtSUr8ildAKiXjMBEKF8zuUJEqOuFVrrRWfE6Pb1 8YNG74wRMxqItDMjtq/HlwLe4YRNCnpbKEBWi+JUSV0PgDcn/ndQNzRQolInyNGI A00kutxA5H4B230FM+d5dG2DPLEr9CRDfAxrjUT5hpc2Xr9qIZeV71sE1yDnCHBI 6vQmuI8iQvfnXOwrSDFsSw== DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=cc:cc:content-transfer-encoding :content-type:content-type:date:date:feedback-id:feedback-id :from:from:in-reply-to:in-reply-to:message-id:mime-version :references:reply-to:subject:subject:to:to:x-me-proxy :x-me-sender:x-me-sender:x-sasl-enc; s=fm3; t=1779965894; x= 1780052294; bh=zvk+3/yRCQ6E54DknTSiKtR0qlLbCcZ5S/G1S9iJjP8=; b=F zWzV2CEkicit7zUUuumQ/1OgEnSdLht0kUMSdMiKmd/KuDRA3BEOyrer+6n+f8De n5v0p9QotMsnSMJnV08BID5U7Rs1flqFOtln+d9xfHrXT1PsPsRP2nTJgogc55Ps X+zzKVlGewSnaWOLWIHdTCgPdJKF9V5eVXj+hHbZxLgELzyEbjwz+Snm89tFMrpE 2nBNPJLmx3Dhw/Z7bUuDpOudAOfL6phULNCPyarklciyI5KhBCTnjpZaDtEZVE7D pg9GUc+ORhtoeueY5H6rDpC5++hRy4CH1Rhx2IETSPs8jZzmlm9AkWLopEOV9uTs L2PGMz4Z+TrxvASEErV+A== X-ME-Sender: X-ME-Received: X-ME-Proxy-Cause: dmFkZTFkiOMDZEFnJVP9A9L0qwETt6Qa6dLUbFsjdibgKa/+Ujwwoo6KbmlT9nxKk8CZo2 vWfGKV+xNrBPT/rXjJQrEWP3wMSK4J4lLbX5eVmyzJvX/dIvf94IvuAYk7vuLLPdGp7205 9bz8QdMSlcu1nzmqxnswba9WrIRcr7jAY1G5QDqUXmL4BFLF/sz/VaqKBvwFM8iimRGkC2 7WrDer/8mVtbyNFT2PNKH5ZT9wp4gOwzb+CO5pdh0TBr0w7PJMFfZfsb1+BZiQjylO0P3X th+Ir7KxJSRBt/bdiPXPUXE5N5reeSHR47QjCiXo21KpcMMXdyfadf/Nfm1X0nQ3U80pmh rhLy0vv4yVigG4kPvI6xb25c3/c05yxfABfe8qUgOBr2jvebRaWf4ogMYyoVtupDM+bbbQ t4G/e04Mmv72GvRZQm5/fLcuLeiHcv02mLJow6EztKG7iZoGD9TciZc3VcirMQl6eZ+L9o 0wCtVY35pI03WZlg5TVyrox4x9S+qtCqwDdiZCtNKSveB6FDGBFI//Hkzwnfay6MU9mEzW YdUnj59WeeQB/YRyHcDxAcpuUegw3e4YrSrDnwCCIiq1LOCZ0cM6tZvMDdiK8BZUW1WLeO 9uRLA11FBmTAAZ/a//UuKIsE8Hyc8peH8xDDdfLr94yMzwFOw4i5sChB66Nw X-ME-Proxy: Feedback-ID: i47234305:Fastmail Received: by mail.messagingengine.com (Postfix) with ESMTPA; Thu, 28 May 2026 06:58:13 -0400 (EDT) From: Thomas Monjalon To: David Marchand Cc: dev@dpdk.org, Jie Liu Subject: Re: [PATCH] net/sxe2: fix 32-bit SSE build Date: Thu, 28 May 2026 12:58:11 +0200 Message-ID: <-b1vJiPdTrqtGy9X39oH8Q@monjalon.net> In-Reply-To: References: <20260528084717.1754057-1-thomas@monjalon.net> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org 28/05/2026 11:47, David Marchand: > On Thu, 28 May 2026 at 10:47, Thomas Monjalon wrote: > > > > Seen in OBS on i586 Debian: > > > > from ../drivers/net/sxe2/sxe2_txrx_vec_sse.c:5: > > In function =E2=80=98_mm_loadu_si128=E2=80=99, > > inlined from =E2=80=98rte_memcpy=E2=80=99 > > inlined from =E2=80=98sxe2_rx_pkts_refactor=E2=80=99 > > at ../drivers/net/sxe2/sxe2_txrx_vec_common.h:2= 33:2: > > /usr/lib/gcc/i686-linux-gnu/12/include/emmintrin.h:703:10: erro= r: > > array subscript 8 is outside array bounds of =E2=80=98struct rt= e_mbuf *[32]=E2=80=99 > > > > The important options to reproduce are "-m32 -O2 -march=3Dcorei7". > > > > In 32-bit build the pointer array done_pkts[32] is smaller: > > 32 * 4 =3D 128 bytes > > so an SSE access would be outside the bound. > > > > The libc memcpy does not trigger such warning > > and is a good choice to copy an array of pointers. > > > > Signed-off-by: Thomas Monjalon >=20 > I reproduced and checked Debian 13 32 bits build with OBS. > Tested-by: David Marchand Thanks for testing. I forgot this: =46ixes: 885647d31504 ("net/sxe2: fix 32-bit SSE build")