From owner-freebsd-net@FreeBSD.ORG Wed May 27 15:26:20 2015 Return-Path: Delivered-To: net@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [8.8.178.115]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id C8694DEF for ; Wed, 27 May 2015 15:26:20 +0000 (UTC) (envelope-from oleg.prozorov@gmail.com) Received: from mail-wi0-x22d.google.com (mail-wi0-x22d.google.com [IPv6:2a00:1450:400c:c05::22d]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority G2" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 51907612 for ; Wed, 27 May 2015 15:26:20 +0000 (UTC) (envelope-from oleg.prozorov@gmail.com) Received: by wifw1 with SMTP id w1so27106376wif.0 for ; Wed, 27 May 2015 08:26:18 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:date:message-id:subject:from:to:content-type; bh=YlwRatIljyB0c1yP1yxQ3+E6wSTmfWNbRNeyXgCbz4U=; b=Wr1XBbm2zydmu6+aKPfbMKWtsae7N/zazo/zrj2LkUM3Mscw75CRkBn9ez1O5zxyQO cVwqvwkFSd1tiLlJEe6Ch/Qr7DS89lKUrSAoXDLYu1P6sdF9mpJZw92yLUcvPQLXKUO1 /cWtG7mawEHUd85o0WTZHd9TIPdimvj3OoD6paL2/rGYum5eiqurvt3keZjzrs1hLgQg r+oxXIEr57vJhQnf+4v9TSfHxKp5d8QOmJK9HuQ/BUFu9nueXyRL07jDJ6CR3vcoiChT /GFZb9O5ud8UDhXkygve5EwTLZ4aMdM1U4nEOfVIWfiXYyHlmjFiqAAH1A7v2r+jynRx OAog== MIME-Version: 1.0 X-Received: by 10.180.72.176 with SMTP id e16mr7321010wiv.12.1432740378882; Wed, 27 May 2015 08:26:18 -0700 (PDT) Received: by 10.194.76.243 with HTTP; Wed, 27 May 2015 08:26:18 -0700 (PDT) Date: Wed, 27 May 2015 18:26:18 +0300 Message-ID: Subject: Netmap problem with e1000e driver From: Oleg Prozorov To: net@freebsd.org Content-Type: text/plain; charset=UTF-8 X-Content-Filtered-By: Mailman/MimeDel 2.1.20 X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 27 May 2015 15:26:20 -0000 Hello All, I am using Netmap technology in my program and have the problem : when I put eth link down and then have it up netmap goes down with kernel messages: log from dmesg: [ 2457.286289] irq 44: nobody cared (try booting with the "irqpoll" option) [ 2457.286296] CPU: 2 PID: 0 Comm: swapper/2 Tainted: G O 3.16.0-4-amd64 #1 Debian 3.16.7-ckt9-3~deb8u1 [ 2457.286298] Hardware name: System manufacturer System Product Name/P8H61-MX R2.0, BIOS 0803 10/26/2012 [ 2457.286300] ffff880198b544c4 ffffffff8150ac96 ffff880198b54400 ffffffff810bd10d [ 2457.286304] ffff880198b54400 000000000000002c 0000000000000000 ffffffff810bd631 [ 2457.286307] 0000000000000000 0000000000000000 000000000000002c 0000000000000000 [ 2457.286310] Call Trace: [ 2457.286312] [] ? dump_stack+0x41/0x51 [ 2457.286324] [] ? __report_bad_irq+0x2d/0xc0 [ 2457.286328] [] ? note_interrupt+0x241/0x290 [ 2457.286332] [] ? handle_irq_event_percpu+0xa1/0x190 [ 2457.286336] [] ? handle_irq_event+0x38/0x60 [ 2457.286341] [] ? handle_edge_irq+0x85/0x150 [ 2457.286347] [] ? handle_irq+0x1d/0x30 [ 2457.286350] [] ? do_IRQ+0x49/0xe0 [ 2457.286355] [] ? common_interrupt+0x6d/0x6d [ 2457.286356] [] ? __hrtimer_start_range_ns+0x1cd/0x390 [ 2457.286364] [] ? cpuidle_enter_state+0x52/0xc0 [ 2457.286368] [] ? cpuidle_enter_state+0x48/0xc0 [ 2457.286372] [] ? cpu_startup_entry+0x2f8/0x400 [ 2457.286375] [] ? start_secondary+0x20f/0x2d0 [ 2457.286377] handlers: [ 2457.286384] [] e1000_msix_other [e1000e] [ 2457.286386] Disabling IRQ #44 before i have the next steps: insmod ./netmap.ko insmod ./e1000e/e1000e.ko log from dmesg: [ 1645.548786] e1000e: Intel(R) PRO/1000 Network Driver - 2.3.2-k [ 1645.548791] e1000e: Copyright(c) 1999 - 2014 Intel Corporation. [ 1645.549056] e1000e 0000:02:00.0: Interrupt Throttling Rate (ints/sec) set to dynamic conservative mode [ 1645.549089] e1000e 0000:02:00.0: irq 42 for MSI/MSI-X [ 1645.549094] e1000e 0000:02:00.0: irq 43 for MSI/MSI-X [ 1645.549098] e1000e 0000:02:00.0: irq 44 for MSI/MSI-X [ 1645.704831] 635.291734 [2720] netmap_attach success for eth0 tx 1/256 rx 1/256 queues/slots [ 1645.705079] e1000e 0000:02:00.0 eth0: registered PHC clock [ 1645.705083] e1000e 0000:02:00.0 eth0: (PCI Express:2.5GT/s:Width x1) 68:05:ca:28:36:f5 [ 1645.705086] e1000e 0000:02:00.0 eth0: Intel(R) PRO/1000 Network Connection [ 1645.705100] e1000e 0000:02:00.0 eth0: MAC: 3, PHY: 8, PBA No: E46981-008 [ 1645.705349] e1000e 0000:03:00.0: Interrupt Throttling Rate (ints/sec) set to dynamic conservative mode [ 1645.705381] e1000e 0000:03:00.0: irq 45 for MSI/MSI-X [ 1645.705386] e1000e 0000:03:00.0: irq 46 for MSI/MSI-X [ 1645.705390] e1000e 0000:03:00.0: irq 47 for MSI/MSI-X [ 1645.739490] systemd-udevd[2715]: renamed network interface eth0 to eth5 [ 1645.824716] IPv6: ADDRCONF(NETDEV_UP): eth5: link is not ready [ 1645.848756] 635.435799 [2720] netmap_attach success for eth0 tx 1/256 rx 1/256 queues/slots [ 1645.848851] e1000e 0000:03:00.0 eth0: registered PHC clock [ 1645.848856] e1000e 0000:03:00.0 eth0: (PCI Express:2.5GT/s:Width x1) 68:05:ca:22:19:e7 [ 1645.848859] e1000e 0000:03:00.0 eth0: Intel(R) PRO/1000 Network Connection [ 1645.848875] e1000e 0000:03:00.0 eth0: MAC: 3, PHY: 8, PBA No: E46981-008 [ 1645.869528] systemd-udevd[2715]: renamed network interface eth0 to eth6 [ 1645.949935] IPv6: ADDRCONF(NETDEV_UP): eth6: link is not ready [ 1648.795532] e1000e: eth5 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: Rx/Tx [ 1648.795856] IPv6: ADDRCONF(NETDEV_CHANGE): eth5: link becomes ready [ 1648.843497] e1000e: eth6 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: Rx/Tx [ 1648.843820] IPv6: ADDRCONF(NETDEV_CHANGE): eth6: link becomes ready [ 1668.060841] e1000e: eth5 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: Rx/Tx [ 1668.212692] e1000e: eth6 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: Rx/Tx My program used netmap desc: root@debian:/home/debian/Projects/bin# lsmod | grep netmap netmap 99228 5 e1000e Then even if it shows that link is up net map stops to work and only rmmod/insmod and restart of the netmap can bring it back to work. Could you please help me with it ? Thx a lot, Oleg.