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 94BCB48C0B; Tue, 2 Dec 2025 18:26:52 +0100 (CET) Received: from mails.dpdk.org (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id 015D040656; Tue, 2 Dec 2025 18:26:37 +0100 (CET) Received: from mail-qk1-f171.google.com (mail-qk1-f171.google.com [209.85.222.171]) by mails.dpdk.org (Postfix) with ESMTP id 7E94C400D5 for ; Tue, 2 Dec 2025 18:26:35 +0100 (CET) Received: by mail-qk1-f171.google.com with SMTP id af79cd13be357-8b2d7c38352so5132885a.0 for ; Tue, 02 Dec 2025 09:26:35 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=networkplumber-org.20230601.gappssmtp.com; s=20230601; t=1764696395; x=1765301195; darn=dpdk.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=Kl+nMGCbzsY7wpBsW42ipYcEgPWsUOOMfA0AdYbFZfU=; b=uNgFhmH1C/L5sfnTfJCNgBGx77kuCfgmZtW+TZeaovibIGC+V1aTvGiWisXJ44pRBW UuvU0+/0sCd2shMhfqArkdPYs72oLQlGIxaKhA5hBJ8YhWgWqHN3qxmeoR5hTAeRSas9 M6a1g5Y9uCPkSwn7Qc4+0T0OUhoCYavGc2CLd21P8Gr3yysdH8SAh03mfIS/mMUVEuNd pTykgYzVBpn8loa6tMn7y2M3A/Av7bnpeGLyba9scKH1+ltibrs3cB1Ms/Iro/wDgN4X gIosakau4jBS+7ZMAiX4KSr7QB+1sYeo+e1oEZKHxCSeRb5LotvANBIwsS45BcDbZku/ JsLA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1764696395; x=1765301195; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-gg:x-gm-message-state:from :to:cc:subject:date:message-id:reply-to; bh=Kl+nMGCbzsY7wpBsW42ipYcEgPWsUOOMfA0AdYbFZfU=; b=Ml8Sh56c0l5+5cL7yZA698rLtsMBCkFs8VZsjkfGV1jafGFIRHWB0KeOIGnrxHGkI4 PcYqz7lwfKag4fdSHkKR+vKarYmK9xRGiXx7kF2SDZElDDKGmTTRi5S3Ca6w63YgKmI1 p38HCC43nbxjesByQGUM/Y58pIn/cZF6rgBbe9AxwH88Z9BVKNuvSz+CDphjesRM4buV SP8ztOG/sLz6NHrDXLQqzeTRyRv5HFU/hITdHArm8x8pNdCjG1xwwdlY9l5igf79Vxhg 7Q7SYxytyGg8RNJZzRbfjF7cB4rdYmiDdAUXm1mOVb7oT9Q6+8BUqfdlRhVIN76bIKGy g5Vw== X-Gm-Message-State: AOJu0YxqraD6zT7jVHjH2xeDwQyyew+QeIURbmfSANRSrkl9qiabxepp VxgPxKOfdbpNB5/NjC8zT6dk19POpjPSooKaCw+VB2kS6pH0dBgq36VrZlBjc81jxVwdqOniW7s m1/IB X-Gm-Gg: ASbGnctEn017IQ9qfa/t07SjqUSpsiOOz5NCftZQs3nmjX1SLnKUjUD7DqXDqVwITkd 4o9C7obBGws+iFNNZna81iuDgDau/dMkiLagvWZxyuqb337+kjZNyz3/2zYNgK8UxCKAMd+TR42 cAkAE2azSBcc5wApAurfcP1Zgl3jjQH5M1wWbnQcLgXH4hkFdM/OhI9kFBsc1J6APaWcmJ64eMv UiZgxTWaozj51tLyEqPvwVOtOWv/WwMJSrHNrzDUPQFL0cWdkxv7bICnvVvjVaAhXKb8GKLNidO 660n5Ktna50cuUCL9TYHKSZjqTxyucLXjVspong1VQlgoQ+tXcOjbhg4DkKmu/Sdxq8rCedDCmi 4tXDLjmz4WQT3YgtOAudxUzl1ii2gaewX8XU9y5aXL4SjhiIbf3d7ds460SAuh6DCQ1zZvO8qoH ZThk4zlKazS/1QmvcbPQW4JLDCmTEM5dVRBVQUI5Tk6jCsCCP+Ig== X-Google-Smtp-Source: AGHT+IFQtKDPcM8F+zN2hnowwtcRTDSyi+4q65VT7k9Tl7FTzxmhWt4S4eTPVT3tMBO9mzwvQR7WhA== X-Received: by 2002:a05:620a:4455:b0:8b2:efe7:d829 with SMTP id af79cd13be357-8b5ac0adcf6mr525421585a.18.1764696394724; Tue, 02 Dec 2025 09:26:34 -0800 (PST) Received: from phoenix.lan (204-195-96-226.wavecable.com. [204.195.96.226]) by smtp.gmail.com with ESMTPSA id af79cd13be357-8b52a1c8405sm1113724885a.38.2025.12.02.09.26.33 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 02 Dec 2025 09:26:34 -0800 (PST) From: Stephen Hemminger To: dev@dpdk.org Cc: Stephen Hemminger Subject: [RFC 3/8] eal: warn if thread name is truncated Date: Tue, 2 Dec 2025 09:24:29 -0800 Message-ID: <20251202172626.283094-4-stephen@networkplumber.org> X-Mailer: git-send-email 2.51.0 In-Reply-To: <20251202172626.283094-1-stephen@networkplumber.org> References: <20251202172626.283094-1-stephen@networkplumber.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 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 Thread name is very short 16 characters and therefore the name dpdk-worker-%d will overflow with more than 9999 worker cores. Error should be non-fatal since name only matters for debug. Signed-off-by: Stephen Hemminger --- lib/eal/linux/eal.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/lib/eal/linux/eal.c b/lib/eal/linux/eal.c index b12f325ddd..d848de03d8 100644 --- a/lib/eal/linux/eal.c +++ b/lib/eal/linux/eal.c @@ -863,8 +863,10 @@ rte_eal_init(int argc, char **argv) rte_panic("Cannot create thread\n"); /* Set thread_name for aid in debugging. */ - snprintf(thread_name, sizeof(thread_name), - "dpdk-worker%d", i); + ret = snprintf(thread_name, sizeof(thread_name), "dpdk-worker%d", i); + if (ret >= RTE_THREAD_NAME_SIZE) + EAL_LOG(INFO, "Worker thread name %s truncated", thread_name); + rte_thread_set_name(lcore_config[i].thread_id, thread_name); ret = rte_thread_set_affinity_by_id(lcore_config[i].thread_id, -- 2.51.0