From mboxrd@z Thu Jan 1 00:00:00 1970 From: "George Spelvin" Subject: NETDEV WATCHDOG: %s (%s): transmit queue %u timed out Date: 22 May 2012 21:03:34 -0400 Message-ID: <20120523010334.5778.qmail@science.horizon.com> Cc: linux@horizon.com To: netdev@vger.kernel.org Return-path: Received: from science.horizon.com ([71.41.210.146]:55420 "HELO science.horizon.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with SMTP id S933045Ab2EWBKQ (ORCPT ); Tue, 22 May 2012 21:10:16 -0400 Sender: netdev-owner@vger.kernel.org List-ID: After installing a 3.4 kernel, I got the following: ------------[ cut here ]------------ WARNING: at net/sched/sch_generic.c:256 dev_watchdog+0xe9/0x15c() Hardware name: MS-7376 NETDEV WATCHDOG: inside (r8169): transmit queue 0 timed out Pid: 0, comm: swapper/3 Not tainted 3.4.0-00017-g3df9c78 #152 Call Trace: [] ? dev_watchdog+0xe9/0x15c [] ? warn_slowpath_common+0x71/0x85 [] ? netif_tx_lock+0x7a/0x7a [] ? warn_slowpath_fmt+0x45/0x4a [] ? netif_tx_lock+0x67/0x7a [] ? dev_watchdog+0xe9/0x15c [] ? __queue_work+0x20a/0x20a [] ? run_timer_softirq+0x17e/0x20b [] ? __do_softirq+0x80/0x102 [] ? call_softirq+0x1c/0x30 [] ? do_softirq+0x2c/0x60 [] ? irq_exit+0x3a/0x91 [] ? do_IRQ+0x81/0x97 [] ? common_interrupt+0x67/0x67 [] ? default_idle+0x1e/0x32 [] ? amd_e400_idle+0xb7/0xd4 [] ? cpu_idle+0x58/0x98 ---[ end trace 7d5a7d21f604b0d8 ]--- r8169 0000:02:00.0: inside: link up (The 17 local patches are to the PPS subsystem and nowhere near net net/ directory.) The system is an AND Phenom X4 processor with 8G of ECC RAM, recently rebooted with lspci -nn gives: 00:00.0 Host bridge [0600]: Advanced Micro Devices [AMD] nee ATI RD790 Northbridge only dual slot PCI-e_GFX and HT3 K8 part [1002:5956] 00:02.0 PCI bridge [0604]: Advanced Micro Devices [AMD] nee ATI RD790 PCI to PCI bridge (external gfx0 port A) [1002:5978] 00:05.0 PCI bridge [0604]: Advanced Micro Devices [AMD] nee ATI RD790 PCI to PCI bridge (PCI express gpp port B) [1002:597b] 00:09.0 PCI bridge [0604]: Advanced Micro Devices [AMD] nee ATI RD790 PCI to PCI bridge (PCI express gpp port E) [1002:597e] 00:12.0 SATA controller [0106]: Advanced Micro Devices [AMD] nee ATI SB600 Non-Raid-5 SATA [1002:4380] 00:13.0 USB controller [0c03]: Advanced Micro Devices [AMD] nee ATI SB600 USB (OHCI0) [1002:4387] 00:13.1 USB controller [0c03]: Advanced Micro Devices [AMD] nee ATI SB600 USB (OHCI1) [1002:4388] 00:13.2 USB controller [0c03]: Advanced Micro Devices [AMD] nee ATI SB600 USB (OHCI2) [1002:4389] 00:13.3 USB controller [0c03]: Advanced Micro Devices [AMD] nee ATI SB600 USB (OHCI3) [1002:438a] 00:13.4 USB controller [0c03]: Advanced Micro Devices [AMD] nee ATI SB600 USB (OHCI4) [1002:438b] 00:13.5 USB controller [0c03]: Advanced Micro Devices [AMD] nee ATI SB600 USB Controller (EHCI) [1002:4386] 00:14.0 SMBus [0c05]: Advanced Micro Devices [AMD] nee ATI SBx00 SMBus Controller [1002:4385] (rev 14) 00:14.1 IDE interface [0101]: Advanced Micro Devices [AMD] nee ATI SB600 IDE [1002:438c] 00:14.2 Audio device [0403]: Advanced Micro Devices [AMD] nee ATI SBx00 Azalia (Intel HDA) [1002:4383] 00:14.3 ISA bridge [0601]: Advanced Micro Devices [AMD] nee ATI SB600 PCI to LPC Bridge [1002:438d] 00:14.4 PCI bridge [0604]: Advanced Micro Devices [AMD] nee ATI SBx00 PCI to PCI Bridge [1002:4384] 00:18.0 Host bridge [0600]: Advanced Micro Devices [AMD] Family 10h Processor HyperTransport Configuration [1022:1200] 00:18.1 Host bridge [0600]: Advanced Micro Devices [AMD] Family 10h Processor Address Map [1022:1201] 00:18.2 Host bridge [0600]: Advanced Micro Devices [AMD] Family 10h Processor DRAM Controller [1022:1202] 00:18.3 Host bridge [0600]: Advanced Micro Devices [AMD] Family 10h Processor Miscellaneous Control [1022:1203] 00:18.4 Host bridge [0600]: Advanced Micro Devices [AMD] Family 10h Processor Link Control [1022:1204] 01:00.0 VGA compatible controller [0300]: Advanced Micro Devices [AMD] nee ATI RV370 5B60 [Radeon X300 (PCIE)] [1002:5b60] 01:00.1 Display controller [0380]: Advanced Micro Devices [AMD] nee ATI RV370 [Radeon X300SE] [1002:5b70] 02:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8111/8168B PCI Express Gigabit Ethernet controller [10ec:8168] (rev 01) 03:00.0 RAID bus controller [0104]: Promise Technology, Inc. PDC42819 [FastTrak TX2650/TX4650] [105a:3f20] 04:00.0 FireWire (IEEE 1394) [0c00]: VIA Technologies, Inc. VT6306/7/8 [Fire II(M)] IEEE 1394 OHCI Controller [1106:3044] (rev c0) 04:02.0 Serial controller [0700]: Oxford Semiconductor Ltd OX16PCI954 (Quad 16950 UART) function 0 (Uart) [1415:9501] 04:02.1 Parallel controller [0701]: Oxford Semiconductor Ltd OX16PCI954 (Quad 16950 UART) function 1 (parallel port) [1415:9513] 04:03.0 PCI bridge [0604]: Digital Equipment Corporation DECchip 21152 [1011:0024] (rev 03) 05:04.0 Ethernet controller [0200]: Digital Equipment Corporation DECchip 21142/43 [1011:0019] (rev 41) 05:05.0 Ethernet controller [0200]: Digital Equipment Corporation DECchip 21142/43 [1011:0019] (rev 41) 05:06.0 Ethernet controller [0200]: Digital Equipment Corporation DECchip 21142/43 [1011:0019] (rev 41) 05:07.0 Ethernet controller [0200]: Digital Equipment Corporation DECchip 21142/43 [1011:0019] (rev 41) The Tulip 100baseT ports are used for external and DMZ ports, while the RTL8169 is the main "inside" gigabit network port. r8169 Gigabit Ethernet driver 2.3LK-NAPI loaded r8169 0000:02:00.0: irq 40 for MSI/MSI-X r8169 0000:02:00.0: eth4: RTL8168b/8111b at 0xffffc90000020000, 00:21:85:16:51:7f, XID 18000000 IRQ 40 r8169 0000:02:00.0: eth4: jumbo features [frames: 4080 bytes, tx checksumming: ko] It doesn't seem to be causing serious problems, but I presume the warning is there because someone would like to know about it.