From mboxrd@z Thu Jan 1 00:00:00 1970 From: Joe Jin Subject: 82571EB: Detected Hardware Unit Hang Date: Thu, 08 Nov 2012 14:24:56 +0800 Message-ID: <509B5038.8090304@oracle.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Cc: "netdev@vger.kernel.org" , "linux-kernel@vger.kernel.org" , Mary Mcgrath To: "e1000-devel@lists.sf.net" Return-path: Sender: linux-kernel-owner@vger.kernel.org List-Id: netdev.vger.kernel.org Hi list, IHAC reported "82571EB Detected Hardware Unit Hang" on HP ProLiant DL360 G6, and have to reboot the server to recover: e1000e 0000:06:00.1: eth3: Detected Hardware Unit Hang: TDH <1a> TDT <1a> next_to_use <1a> next_to_clean <18> buffer_info[next_to_clean]: time_stamp <10047a74e> next_to_watch <18> jiffies <10047a88c> next_to_watch.status <1> MAC Status <80383> PHY Status <792d> PHY 1000BASE-T Status <3800> PHY Extended Status <3000> PCI Status <10> With newer kernel 2.0.0.1 the issue still reproducible. Device info: 06:00.1 Ethernet controller: Intel Corporation 82571EB Gigabit Ethernet Controller (Copper) (rev 06) 06:00.1 0200: 8086:10bc (rev 06) I compared lspci output before and after the issue, different as below: 06:00.1 Ethernet controller: Intel Corporation 82571EB Gigabit Ethernet Controller (Copper) (rev 06) Subsystem: Hewlett-Packard Company NC364T PCI Express Quad Port Gigabit Server Adapter Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr+ Stepping- SERR- FastB2B- DisINTx- - Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- SERR- TAbort- SERR- Joe Jin | Software Development Senior Manager | +8610.6106.5624 ORACLE | Linux and Virtualization No. 24 Zhongguancun Software Park, Haidian District | 100193 Beijing