From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-it0-f47.google.com (mail-it0-f47.google.com [209.85.214.47]) by dpdk.org (Postfix) with ESMTP id 4DFE2568F for ; Fri, 22 Jul 2016 23:51:35 +0200 (CEST) Received: by mail-it0-f47.google.com with SMTP id j124so59211074ith.1 for ; Fri, 22 Jul 2016 14:51:35 -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=Jw3sV5EuDHRGFO7FOrNiaXZU9CL0WoByNgkGVNMdtn5fhyRfe1w3bTnVUK5sSEl/Vv mGAL2DPoHfFbZepC1kZK+PtRKlatyG+SeYeE+2WSdT4atawW5n95waSJscwJZXgz7Kbp aHAsVWDjAz2vFlcSlhPvx5krqwcQndz9QGH4Ff2W/o0rSyeznavi6wYmcv5k0ht5V5nX vtKlh+5k/XlOQiMxvX9FTtLW1/2L0wvlDOeLs8MCT8CjGh6ZWPDDLrnInXsZl2eizPfP lD/UOylKk4bIhPUGu0I6/vV8vQlwlmnHuNs50ib1HdTBQ10IUTL+zaaVUiK2ryDz77ft nfBA== X-Gm-Message-State: AEkooutBuQTYGJ7xJCydK2YPrEGl27DDoIpTKptct+Txbg/dEI0wDEA20NUjXgUdY0ra2UxwQS32QuBVd1+k6A== 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-users] em1000 driver lockup in KVM X-BeenThere: users@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: usage discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 22 Jul 2016 21:51:35 -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