From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mails.dpdk.org (mails.dpdk.org [217.70.189.124]) by inbox.dpdk.org (Postfix) with ESMTP id BBB1F46F02 for ; Tue, 16 Sep 2025 10:59:18 +0200 (CEST) Received: from mails.dpdk.org (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id 9859B4028C; Tue, 16 Sep 2025 10:59:18 +0200 (CEST) Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.129.124]) by mails.dpdk.org (Postfix) with ESMTP id B8B1F4028C for ; Tue, 16 Sep 2025 10:59:16 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1758013156; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=0g07RQhAdrl7zacZzQVbdeuw4NzlXSTXEJUrKwzGR08=; b=KzUNURsZ+WjdEUdCS0Mhe28jq7tn5kTfeTIXoSj/nDJNUnuhoxqjAIrTG51JPBh6MpRuyw oZXCKnAgXjSxxxOAO1XaELLedIBjmRqPpmG6rhFIkU2Yr3QSGlcH3LFVAiBKH8sQHh6WHC 1LEjeR/NTt+6Wh2n4+lac9lr6oz3gEo= Received: from mail-lf1-f72.google.com (mail-lf1-f72.google.com [209.85.167.72]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-695-6PPhzIgZP_6MOiczk_7TcA-1; Tue, 16 Sep 2025 04:59:14 -0400 X-MC-Unique: 6PPhzIgZP_6MOiczk_7TcA-1 X-Mimecast-MFC-AGG-ID: 6PPhzIgZP_6MOiczk_7TcA_1758013153 Received: by mail-lf1-f72.google.com with SMTP id 2adb3069b0e04-56094c1cd66so3200891e87.1 for ; Tue, 16 Sep 2025 01:59:13 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1758013152; x=1758617952; h=cc:to:subject:message-id:date:from:in-reply-to:references :mime-version:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=0g07RQhAdrl7zacZzQVbdeuw4NzlXSTXEJUrKwzGR08=; b=amh2CL9BPsui3lnm3XCqsJCvhNBp7m1iS0u8/L4NT88FxKoBLgDaf6aIs1M1w4dcvo cWRfB3cZ3rISXOdOQ3jFMxsno60R817p9wjEyQ5YF+mEjUHcGdtXxXHV3V5IeN41o0kN jiPIK538aj79wHJtx5sY5Bst/janwF8DOZUnv8sQsfo/8QNqrwg0gF06nG3Vbz75Oz/A B7KBW0OJe25kXSf12PUk+5Js4qVmC3ETcbxB1QZJ7Ew71ndFhG3f/egP8cI8oT2EbcSA Fg3HdnTxqljr0aGu3llM4RHDr4aLWlnPiM6UdgmB4RdqoNLDzXN8hF9gW4M731fpuRiD wGEQ== X-Forwarded-Encrypted: i=1; AJvYcCUmZLJoQ3WX6377A4IHIvgj7STxnw0sW27w2u1IEI5G+T4EHA0hPz/EXFAR5hadOjZq/nzh3VQ=@dpdk.org X-Gm-Message-State: AOJu0Yw0ukWM054sl6vE1ccI4hsjO+s/JpKS1s5HCpZsvRelibVqazko VaY9jQvBAQ8JZOXFv17U3VBARBsUYuhyZ0sOMYXcUj8TaGVw3UZI7pbJ6of9cpMt2Q2zwaNpPkI 1wVHPWHT7Y/EgiBr2vdTzRyTYqmsy8mldzH1KRUCirrzpqsrAwaWQjqLQi8L4Sss8akWkv9apSz N2BuOyg1dWrnLBbhBTnO4OyQc= X-Gm-Gg: ASbGnctZgwv6FjBQZxNQ1DgtITB6MAeNcY/WdL4dVpYZkPjv+TtBQYg8Pn9zkWZSfZg /aVJ3xj4ZqHea4S7RUri08y15zyuCRZGGm1w1Sqz5FZqy57Ehja+Sg1GLYFT2ka22E/RevBWbEe 0cyaL13uSCgbrm16FLr5xUr/s= X-Received: by 2002:a05:6512:3192:b0:55f:701f:933 with SMTP id 2adb3069b0e04-57050828c63mr4977309e87.41.1758013152582; Tue, 16 Sep 2025 01:59:12 -0700 (PDT) X-Google-Smtp-Source: AGHT+IG5z2d9jUaO08XZ55YXrdmQEdy3FUz0gLYNKRYVRTAnRKHQS8vj+cVE6MeJchG2Nqnhk8Z4+laHJVGPvbc5AJE= X-Received: by 2002:a05:6512:3192:b0:55f:701f:933 with SMTP id 2adb3069b0e04-57050828c63mr4977295e87.41.1758013152143; Tue, 16 Sep 2025 01:59:12 -0700 (PDT) MIME-Version: 1.0 References: <20250908070414.1297844-1-thierry.herbelot@6wind.com> <20250909054023.3263401-1-thierry.herbelot@6wind.com> <20250909091724.2ea0615e@hermes.local> <151c401a-87dc-423c-8bae-89d325dc8c90@6wind.com> <20250910090926.204ff85d@hermes.local> In-Reply-To: <20250910090926.204ff85d@hermes.local> From: David Marchand Date: Tue, 16 Sep 2025 10:59:00 +0200 X-Gm-Features: AS18NWCqbhNN6DDVhfys6tJcYtO9UHh1FTZ-rhbgyjn9FSis1FbJfNB_VcKQkwg Message-ID: Subject: Re: [V3] net/qede: reduce the optimization level for gcc > 11 To: Stephen Hemminger , Thierry Herbelot Cc: dev@dpdk.org, Thomas Monjalon , Devendra Singh Rawat , Alok Prasad , Jerin Jacob , Olivier Matz , Edwin Brossette , stable@dpdk.org X-Mimecast-Spam-Score: 0 X-Mimecast-MFC-PROC-ID: n4id8svNR2z5bUMe7uLW6Ww63fXhJjGMYa5_359QSYo_1758013153 X-Mimecast-Originator: redhat.com Content-Type: text/plain; charset="UTF-8" X-BeenThere: stable@dpdk.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: patches for DPDK stable branches List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: stable-bounces@dpdk.org On Wed, 10 Sept 2025 at 18:42, Stephen Hemminger wrote: > On Wed, 10 Sep 2025 08:49:38 +0200 > Thierry Herbelot wrote: > > The error chain is: > > > > RX-nombufs > > => (testpmd) stats.rx_nombuf > > => (qede) p_stats->common.no_buff_discards > > => (qede/base) HILO_64_REGPAIR(mstats.no_buff_discard) > > (internal to the NIC) > > > > Thanks, lets root cause this (rather than paper it over) because +1 > other drivers may have same issue. Since no mbufs are present > looks like rx discriptor never made it to NIC I would add that if the descs do make it to the nic, maybe the (IOVA) addresses are incorrect. We changed the default IOVA not so long ago.. so maybe play with --iova-mode to continue investigations. -- David Marchand