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 AF1E448984; Mon, 20 Oct 2025 06:12:02 +0200 (CEST) Received: from mails.dpdk.org (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id 1065242E56; Mon, 20 Oct 2025 06:11:25 +0200 (CEST) Received: from canpmsgout01.his.huawei.com (canpmsgout01.his.huawei.com [113.46.200.216]) by mails.dpdk.org (Postfix) with ESMTP id CD19E402D8 for ; Mon, 20 Oct 2025 06:11:15 +0200 (CEST) dkim-signature: v=1; a=rsa-sha256; d=huawei.com; s=dkim; c=relaxed/relaxed; q=dns/txt; h=From; bh=UK6UF0HCDLFVIrx+Y6zfUnQSGa4Hsmz7zwktm344/zo=; b=KSi16mQGngr6nBJtVrTgPQBlmsEO55zGNqMBeEz5as/CNtSFbbL3Mu6vi98D6+z1+pDikT0oD 3PIugfFExWMx8dsgPNZF89NAcysqRj4iNhz/PW4Nn2CFXim/QYUfx+k8v/7LKJi91zknqzZxasR kXYIC43RU/xL0ipR4NDO1qo= Received: from mail.maildlp.com (unknown [172.19.163.48]) by canpmsgout01.his.huawei.com (SkyGuard) with ESMTPS id 4cqhmH5BZNz1T4FV; Mon, 20 Oct 2025 12:10:23 +0800 (CST) Received: from kwepemk500009.china.huawei.com (unknown [7.202.194.94]) by mail.maildlp.com (Postfix) with ESMTPS id CDFE818006C; Mon, 20 Oct 2025 12:11:14 +0800 (CST) Received: from localhost.localdomain (10.50.163.32) by kwepemk500009.china.huawei.com (7.202.194.94) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1544.11; Mon, 20 Oct 2025 12:11:14 +0800 From: Chengwen Feng To: , CC: , , Subject: [PATCH v4 11/14] app/dma-perf: fix segment fault with large size Date: Mon, 20 Oct 2025 12:11:02 +0800 Message-ID: <20251020041105.1590-12-fengchengwen@huawei.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20251020041105.1590-1-fengchengwen@huawei.com> References: <20250811105430.55791-1-fengchengwen@huawei.com> <20251020041105.1590-1-fengchengwen@huawei.com> MIME-Version: 1.0 Content-Type: text/plain X-Originating-IP: [10.50.163.32] X-ClientProxiedBy: kwepems100001.china.huawei.com (7.221.188.238) To kwepemk500009.china.huawei.com (7.202.194.94) 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 When the buf-size is too large, the test will show: Case process killed by signal 11 The root cause is that rte_pktmbuf_pool_create() will truncate the buf-size to uint16 type. This commit add a friendly error trace when encounter such case. Fixes: 623dc9364dc6 ("app/dma-perf: introduce DMA performance test") Cc: stable@dpdk.org Signed-off-by: Chengwen Feng --- app/test-dma-perf/benchmark.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/app/test-dma-perf/benchmark.c b/app/test-dma-perf/benchmark.c index 694ad25cbe..6643ccc95f 100644 --- a/app/test-dma-perf/benchmark.c +++ b/app/test-dma-perf/benchmark.c @@ -525,6 +525,11 @@ setup_memory_env(struct test_configure *cfg, uint32_t nr_buf, return -1; } + if (buf_size > UINT16_MAX) { + PRINT_ERR("Error: Invalid buf size: %u\n", cur_buf_size); + return -1; + } + src_pool = rte_pktmbuf_pool_create("Benchmark_DMA_SRC", nr_buf, 0, -- 2.17.1