From mboxrd@z Thu Jan 1 00:00:00 1970 From: Gregory Etelson Subject: ugb_uio: r3.8xlarge bind failure Date: Thu, 09 Nov 2017 19:20:56 +0200 Message-ID: <1866566.0zvbrY6xpu@polaris> References: <20171103223822.28852-1-ferruh.yigit@intel.com> <2004961.P5XXAOnQC2@xps> Reply-To: gregory@weka.io Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7Bit Cc: Chas Williams <3chas3@gmail.com>, Thomas Monjalon , stable@dpdk.org, dev@dpdk.org, Jianfeng Tan , Jingjing Wu , Shijith Thotton , Harish Patil , George Prekas , Sergio Gonzalez Monroy , Rasesh Mody , Lee Roberts , Stephen Hemminger To: Ferruh Yigit Return-path: Received: from mail-wm0-f48.google.com (mail-wm0-f48.google.com [74.125.82.48]) by dpdk.org (Postfix) with ESMTP id E03901B20E for ; Thu, 9 Nov 2017 18:20:59 +0100 (CET) Received: by mail-wm0-f48.google.com with SMTP id t139so19274109wmt.1 for ; Thu, 09 Nov 2017 09:20:59 -0800 (PST) In-Reply-To: List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" Hello, There are some AWS R3.8XLARGE instances that fail to bind Intel 10G VFs with igb_uio [c05cb4f939082]. System dmeg log show this backtrace: igb_uio: probe of 0000:00:05.0 failed with error -16 IRQ handler type mismatch for IRQ 0 current handler: timer Pid: 3619, comm: bash Not tainted 2.6.32-642.15.1.el6.x86_64 #1 Call Trace: [] ? __setup_irq+0x382/0x3c0 [] ? uio_interrupt+0x0/0x48 [uio] [] ? request_threaded_irq+0x133/0x230 [] ? __uio_register_device+0x553/0x610 [uio] [] ? igbuio_pci_probe+0x290/0x47a [igb_uio] [] ? kobject_get+0x1a/0x30 [] ? local_pci_probe+0x17/0x20 [] ? pci_device_probe+0x101/0x120 [] ? driver_sysfs_add+0x62/0x90 [] ? driver_probe_device+0xaa/0x3a0 [] ? driver_bind+0xca/0x110 [] ? drv_attr_store+0x2c/0x30 [] ? sysfs_write_file+0xe5/0x170 [] ? vfs_write+0xb8/0x1a0 [] ? fget_light_pos+0x16/0x50 [] ? sys_write+0x51/0xb0 The VFs can be returned back to kernel ixgbevf driver with no faults. The instances can bind VFs with igb_uio[b58eedfc7dd57] I could not find yet why some R3.8XLARGE instances can bind IXGBE VFs with igb_uio while other fail lspci -vvv -s 0000:00:05.0 00:05.0 Ethernet controller: Intel Corporation 82599 Ethernet Controller Virtual Function (rev 01) Physical Slot: 5 Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+ Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- SERR-