From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-it0-f46.google.com (mail-it0-f46.google.com [209.85.214.46]) by dpdk.org (Postfix) with ESMTP id 45E605682 for ; Fri, 22 Jul 2016 23:47:53 +0200 (CEST) Received: by mail-it0-f46.google.com with SMTP id f6so7619276ith.0 for ; Fri, 22 Jul 2016 14:47:53 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=viptela-com.20150623.gappssmtp.com; s=20150623; h=mime-version:from:date:message-id:subject:to; bh=SIYnJisVSVdKOs+Wc8g5lLmUw3AXmK10AgCGDGKdGgE=; b=0Qfp6cmOxkIeCKWyYUdxrEr2GO1rZ5tYT9Ch9FdMjnS7c2w6Tb12Bfcnt6LJN1ylqu IlaC7e8oCO/H3ncOMoGbI8q/oW8maeiEUjm38/wQV9bQcOx5D0Z3aDBvEqFXUdHvyKzl qZMY2o60T8mDWsms90LLQdUsZuxqmEeHBXnDiiaQNWk4RYx5sVDLHgRc+3H4SJFZzS9t vdat9/0b6RO3tadROnijqHK/HNcneR07v4etLUp+ZAOpLYxV0pQCFMg4DtiEEdFXw/Up 3ZM5pmCC5Q6qVLT0oLM/6s2lmwY4F9YoTEhYazjzaewCpMsZKkqf+lnQVkCh5tk4zmwi xxVw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:mime-version:from:date:message-id:subject:to; bh=SIYnJisVSVdKOs+Wc8g5lLmUw3AXmK10AgCGDGKdGgE=; b=bbCj/Wr7d40g1fYXMtqXhUzGJcJxQmjqY/IaqkN4yeyO3q2gGNpH9tXsbe1UgzVYVH MxKnQTrTmuooiwsuMzGpf8dNAqo/497emv0Ytijrxgol2EpAYvyLK7QI7HqjjyEP5FSn jcb70ByHJsC8dWNyAJqhUxVHftmQC5pRDc+K6j4pbFCJffl+/2ihEYXZ+BX3dCTGd+vR E+b9HoDJ63RnpbqYjp5X/TnFQfdoeIKZF/bBHO9WZmpmYMUN0MntPjrdFNrdP6jg1WO0 YDN0u4WYAOqpa5vfeqH1f5fabXXNGOkAHyUmh+TndzUIcRDit1sXgN4Ps6XGdDYj2zVG fD1w== X-Gm-Message-State: AEkoouv/UlEryulrb52ils9mZXO9WxB09+kN/uJFeLPp/+c3WP6YY37uUKsSmHzJfUAg06GBOPsoT8Jg8HZQ7w== X-Received: by 10.36.107.211 with SMTP id v202mr6565048itc.51.1469222408406; Fri, 22 Jul 2016 14:20:08 -0700 (PDT) MIME-Version: 1.0 Received: by 10.107.25.130 with HTTP; Fri, 22 Jul 2016 14:19:29 -0700 (PDT) From: Prabahar Radhakrishnan Date: Fri, 22 Jul 2016 14:19:29 -0700 Message-ID: To: users@dpdk.org, dev@dpdk.org Content-Type: text/plain; charset=UTF-8 X-Content-Filtered-By: Mailman/MimeDel 2.1.15 Subject: [dpdk-dev] em1000 driver lockup in KVM X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: patches and discussions about DPDK List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 22 Jul 2016 21:47:53 -0000 Hi, I was running a dpdk application with e1000 driver and I am facing a rare driver lockup condition. Under this condition, what I am seeing is that the Receive side locks up. The transmit side is fine. When I execute "rte_eth_dev_stop()/rte_eth_dev_start()" from within the VM, the dpdk application recovers. The lockup happens once in 2 or 3 days if I continuously ping an IP address serviced by the dpdk application. Once it locks up, what I am noticing is that even though packets are coming in, the driver is not populating them and signaling the event. In other words, in "eth_em_recv_pkts" call, I am not seeing "E1000_RXD_STAT_DD" being set for status, and the driver bails out. If anyone has come across such condition, please let me know? Appreciate the help. Environment: I have a VM running on top of Ubuntu/KVM. Application: Running dpdk-2.0.0. VM: uses e1000 driver. On the KVM side, our port is sitting in a bridge. There are other VNFs that we use for testing and some of them are using virtio driver. Thank You regards Prab