kern/103256: [em] em0: watchdog timeout -- resetting (6.1-STABLE)

[Skye Poier Nott]

The following reply was made to PR kern/103256; it has been noted by GNATS.

From: Skye Poier Nott <skye at f4.ca>
To: bug-followup at FreeBSD.org
Cc:  
Subject: Re: kern/103256: [em] em0: watchdog timeout -- resetting (6.1-STABLE)
Date: Mon, 16 Oct 2006 14:36:14 -0700

 Ditto, didn't see this problem with 6.1-PRERELEASE and upgraded to  
 6.2-PRERELEASE and now I'm getting a couple of these a day on my dual  
 Xeon intel 1u server:
 
 em0: watchdog timeout -- resetting
 em0: link state changed to DOWN
 em0: link state changed to UP
 em0: watchdog timeout -- resetting
 em0: link state changed to DOWN
 em0: link state changed to UP
 em0: watchdog timeout -- resetting
 em0: link state changed to DOWN
 em0: link state changed to UP
 em0: watchdog timeout -- resetting
 em0: link state changed to DOWN
 em0: link state changed to UP
 em0: watchdog timeout -- resetting
 em0: link state changed to DOWN
 em0: link state changed to UP
 em0: watchdog timeout -- resetting
 em0: link state changed to DOWN
 em0: link state changed to UP
 etc
 
 Output of pciconf -lv
 
 hostb0 at pci0:0:0:        class=0x060000 card=0x34508086  
 chip=0x35928086 rev=0x0c hdr=0x00
      vendor   = 'Intel Corporation'
      device   = 'E732x Server Memory Controller Hub'
      class    = bridge
      subclass = HOST-PCI
 none0 at pci0:0:1: class=0xff0000 card=0x34508086 chip=0x35938086  
 rev=0x0c hdr=0x00    vendor   = 'Intel Corporation'
      device   = 'E752x Memory Controller Hub Error Reporting Registers'
 pcib1 at pci0:2:0: class=0x060400 card=0x00000050 chip=0x35958086  
 rev=0x0c hdr=0x01    vendor   = 'Intel Corporation'
      device   = 'E752x Memory Controller Hub PCI Express Port A0'
      class    = bridge
      subclass = PCI-PCI
 pcib2 at pci0:3:0: class=0x060400 card=0x00000050 chip=0x35968086  
 rev=0x0c hdr=0x01    vendor   = 'Intel Corporation'
      device   = 'E752x Memory Controller Hub PCI Express Port A1'
      class    = bridge
      subclass = PCI-PCI
 pcib3 at pci0:28:0:        class=0x060400 card=0x00000050  
 chip=0x25ae8086 rev=0x02 hdr=0x01
      vendor   = 'Intel Corporation'
      device   = '6300ESB Hub Interface to PCI-X Bridge'
      class    = bridge
      subclass = PCI-PCI
 uhci0 at pci0:29:0:        class=0x0c0300 card=0x34508086  
 chip=0x25a98086 rev=0x02 hdr=0x00
      vendor   = 'Intel Corporation'
      device   = '6300ESB USB 1.1 UHCI Controller'
      class    = serial bus
      subclass = USB
 uhci1 at pci0:29:1:        class=0x0c0300 card=0x34508086  
 chip=0x25aa8086 rev=0x02 hdr=0x00
      vendor   = 'Intel Corporation'
      device   = '5300ESB USB 1.1 UHCI Controller'
      class    = serial bus
      subclass = USB
 none1 at pci0:29:4:        class=0x088000 card=0x34508086  
 chip=0x25ab8086 rev=0x02 hdr=0x00
      vendor   = 'Intel Corporation'
      device   = '6300ESB Watchdog Timer'
      class    = base peripheral
 none2 at pci0:29:5:        class=0x080020 card=0x34508086  
 chip=0x25ac8086 rev=0x02 hdr=0x00
      vendor   = 'Intel Corporation'
      device   = '6300ESB APIC1'
      class    = base peripheral
      subclass = interrupt controller
 ehci0 at pci0:29:7:        class=0x0c0320 card=0x34508086  
 chip=0x25ad8086 rev=0x02 hdr=0x00
      vendor   = 'Intel Corporation'
      device   = '6300ESB USB 2.0 EHCI Controller'
      class    = serial bus
      subclass = USB
 pcib4 at pci0:30:0:        class=0x060400 card=0x00000000  
 chip=0x244e8086 rev=0x0a hdr=0x01
      vendor   = 'Intel Corporation'
      device   = '82801BA/CA/DB/DBL/EB/ER/FB (ICH2/3/4/4/5/5/6),  
 6300ESB Hub Interface to PCI Bridge'
      class    = bridge
      subclass = PCI-PCI
 isab0 at pci0:31:0:        class=0x060100 card=0x00000000  
 chip=0x25a18086 rev=0x02 hdr=0x00
      vendor   = 'Intel Corporation'
      device   = '6300ESB LPC Interface Bridge'
      class    = bridge
      subclass = PCI-ISA
 atapci0 at pci0:31:1:      class=0x01018a card=0x34508086  
 chip=0x25a28086 rev=0x02 hdr=0x00
      vendor   = 'Intel Corporation'
      device   = '6300ESB IDE Controller'
      class    = mass storage
      subclass = ATA
 atapci1 at pci0:31:2:      class=0x01048f card=0x34518086  
 chip=0x25b08086 rev=0x02 hdr=0x00
      vendor   = 'Intel Corporation'
      device   = '6300ESB Serial ATA Controller (RAID mode)'
      class    = mass storage
      subclass = RAID
 ichsmb0 at pci0:31:3:      class=0x0c0500 card=0x34508086  
 chip=0x25a48086 rev=0x02 hdr=0x00
      vendor   = 'Intel Corporation'
      device   = '6300ESB SMBus Controller'
      class    = serial bus
      subclass = SMBus
 none3 at pci2:0:0: class=0x020000 card=0x50218086 chip=0x436111ab  
 rev=0x17 hdr=0x00    vendor   = 'Marvell Semiconductor (Was: Galileo  
 Technology Ltd)'
      device   = '88E8036 Marvell Yukon -EC 88E8050 PCI Express  
 Gigabit Ethernet Controller'
      class    = network
      subclass = ethernet
 none4 at pci4:2:0: class=0x030000 card=0x34508086 chip=0x47521002  
 rev=0x27 hdr=0x00    vendor   = 'ATI Technologies Inc'
      device   = 'Rage XL PCI'
      class    = display
      subclass = VGA
 em0 at pci4:3:0:   class=0x020000 card=0x34508086 chip=0x10768086  
 rev=0x05 hdr=0x00    vendor   = 'Intel Corporation'
      device   = '82547EI Gigabit Ethernet Controller'
      class    = network
      subclass = ethernet