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

Imri Zvik imriz at co.zahav.net.il
Thu Sep 14 01:50:13 PDT 2006 

>Number:         103256
>Category:       kern
>Synopsis:       em0: watchdog timeout -- resetting (6.1-STABLE)
>Confidential:   no
>Severity:       serious
>Priority:       high
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Thu Sep 14 08:50:11 GMT 2006
>Closed-Date:
>Last-Modified:
>Originator:     Imri Zvik
>Release:        6.1-STABLE
>Organization:
Internet Gold
>Environment:
FreeBSD wintergreen 6.1-STABLE FreeBSD 6.1-STABLE #1: Wed Aug 30 09:54:35 IDT 2006     root at wintergreen:/usr/obj/usr/src/sys/IGLD  i386
>Description:
I've recently upgraded my 6.0-STABLE machine to 6.1-STABLE, and since the upgrade i'm getting "em0: watchdog timeout -- resetting" messages every once in a while (sometimes twice a day, sometimes every couple of days). This causes the machine to be unstable, network-wise (connections being dropped, etc.)

Sep 14 06:35:41 wintergreen kernel: em0: watchdog timeout -- resetting
Sep 14 06:35:41 wintergreen kernel: em0: link state changed to DOWN
Sep 14 06:35:42 wintergreen kernel: em0: link state changed to UP


i've found this discussion on freebsd-stable (http://www.mail-archive.com/freebsd-stable@freebsd.org/msg81865.html) indicating that i am not the only one suffering from this issue.

the output of pciconf -l -v:
hostb0 at pci0:0:0:        class=0x060000 card=0x00000000 chip=0x00141166 rev=0x33 hdr=0x00
    vendor   = 'ServerWorks (Was: Reliance Computer Corp)'
    device   = 'CNB20-HE Host Bridge'
    class    = bridge
    subclass = HOST-PCI
hostb1 at pci0:0:1:        class=0x060000 card=0x00000000 chip=0x00141166 rev=0x00 hdr=0x00
    vendor   = 'ServerWorks (Was: Reliance Computer Corp)'
    device   = 'CNB20-HE Host Bridge'
    class    = bridge
    subclass = HOST-PCI
hostb2 at pci0:0:2:        class=0x060000 card=0x00000000 chip=0x00141166 rev=0x00 hdr=0x00
    vendor   = 'ServerWorks (Was: Reliance Computer Corp)'
    device   = 'CNB20-HE Host Bridge'
    class    = bridge
    subclass = HOST-PCI
none0 at pci0:6:0: class=0x030000 card=0x02401014 chip=0x47521002 rev=0x27 hdr=0x00
    vendor   = 'ATI Technologies Inc'
    device   = 'Rage XL PCI'
    class    = display
    subclass = VGA
hostb3 at pci0:15:0:       class=0x060000 card=0x02011166 chip=0x02011166 rev=0x93 hdr=0x00
    vendor   = 'ServerWorks (Was: Reliance Computer Corp)'
    device   = 'CSB5 PCI to ISA Bridge'
    class    = bridge
    subclass = HOST-PCI
atapci0 at pci0:15:1:      class=0x010182 card=0x02121166 chip=0x02121166 rev=0x93 hdr=0x00
    vendor   = 'ServerWorks (Was: Reliance Computer Corp)'
    device   = 'CSB5 PCI EIDE Controller'
    class    = mass storage
    subclass = ATA
ohci0 at pci0:15:2:        class=0x0c0310 card=0x02201166 chip=0x02201166 rev=0x05 hdr=0x00
    vendor   = 'ServerWorks (Was: Reliance Computer Corp)'
    device   = 'OSB4 OpenHCI Compliant USB Controller'
    class    = serial bus
    subclass = USB
isab0 at pci0:15:3:        class=0x060100 card=0x02301166 chip=0x02251166 rev=0x00 hdr=0x00
    vendor   = 'ServerWorks (Was: Reliance Computer Corp)'
    device   = 'CSB5 PCI Bridge'
    class    = bridge
    subclass = PCI-ISA
hostb4 at pci0:16:0:       class=0x060000 card=0x00000000 chip=0x01011166 rev=0x05 hdr=0x00
    vendor   = 'ServerWorks (Was: Reliance Computer Corp)'
    device   = 'CIOB-X2'
    class    = bridge
    subclass = HOST-PCI
hostb5 at pci0:16:2:       class=0x060000 card=0x00000000 chip=0x01011166 rev=0x05 hdr=0x00
    vendor   = 'ServerWorks (Was: Reliance Computer Corp)'
    device   = 'CIOB-X2'
    class    = bridge
    subclass = HOST-PCI
hostb6 at pci0:17:0:       class=0x060000 card=0x00000000 chip=0x01011166 rev=0x05 hdr=0x00
    vendor   = 'ServerWorks (Was: Reliance Computer Corp)'
    device   = 'CIOB-X2'
    class    = bridge
    subclass = HOST-PCI
hostb7 at pci0:17:2:       class=0x060000 card=0x00000000 chip=0x01011166 rev=0x05 hdr=0x00
    vendor   = 'ServerWorks (Was: Reliance Computer Corp)'
    device   = 'CIOB-X2'
    class    = bridge
    subclass = HOST-PCI
em0 at pci6:8:0:   class=0x020000 card=0x027c1014 chip=0x10108086 rev=0x01 hdr=0x00
    vendor   = 'Intel Corporation'
    device   = '82546EB Dual Port Gigabit Ethernet Controller (Copper)'
    class    = network
    subclass = ethernet
em1 at pci6:8:1:   class=0x020000 card=0x027c1014 chip=0x10108086 rev=0x01 hdr=0x00
    vendor   = 'Intel Corporation'
    device   = '82546EB Dual Port Gigabit Ethernet Controller (Copper)'
    class    = network
    subclass = ethernet
ips0 at pci8:2:0:  class=0x010400 card=0x028c1014 chip=0x02509005 rev=0x02 hdr=0x00
    vendor   = 'Adaptec Inc'
    device   = 'ServeRAID Controller'
    class    = mass storage
    subclass = RAID



output of dmesg:
Copyright (c) 1992-2006 The FreeBSD Project.
Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, 1994
        The Regents of the University of California. All rights reserved.
FreeBSD 6.1-STABLE #1: Wed Aug 30 09:54:35 IDT 2006
    root at wintergreen.inter.net.il:/usr/obj/usr/src/sys/IGLD
Timecounter "i8254" frequency 1193182 Hz quality 0
CPU: Intel(R) Xeon(TM) CPU 2.80GHz (2793.90-MHz 686-class CPU)
  Origin = "GenuineIntel"  Id = 0xf29  Stepping = 9
  Features=0xbfebfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CLFLUSH,DTS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE>
  Features2=0x4400<CNTX-ID,<b14>>
real memory  = 1073655808 (1023 MB)
avail memory = 1041412096 (993 MB)
ACPI APIC Table: <IBM    SERONYXP>
FreeBSD/SMP: Multiprocessor System Detected: 2 CPUs
 cpu0 (BSP): APIC ID:  0
 cpu1 (AP): APIC ID:  6
MADT: Forcing active-low polarity and level trigger for SCI
ioapic2 <Version 1.1> irqs 32-47 on motherboard
ioapic1 <Version 1.1> irqs 16-31 on motherboard
ioapic0 <Version 1.1> irqs 0-15 on motherboard
acpi0: <IBM SERONYXP> on motherboard
acpi0: Power Button (fixed)
acpi0: reservation of 460, 2 (4) failed
Timecounter "ACPI-safe" frequency 3579545 Hz quality 1000
acpi_timer0: <32-bit timer at 3.579545MHz> port 0x488-0x48b on acpi0
cpu0: <ACPI CPU> on acpi0
cpu1: <ACPI CPU> on acpi0
pcib0: <ACPI Host-PCI bridge> on acpi0
pci0: <ACPI PCI bus> on pcib0
pci0: <display, VGA> at device 6.0 (no driver attached)
atapci0: <ServerWorks CSB5 UDMA100 controller> port 0x1f0-0x1f7,0x3f6,0x170-0x177,0x376,0x700-0x70f at device 15.1 on pci0
ata0: <ATA channel 0> on atapci0
ata1: <ATA channel 1> on atapci0
ohci0: <OHCI (generic) USB controller> mem 0xfebfe000-0xfebfefff irq 11 at device 15.2 on pci0
ohci0: [GIANT-LOCKED]
usb0: OHCI version 1.0, legacy support
usb0: SMM does not respond, resetting
usb0: <OHCI (generic) USB controller> on ohci0
usb0: USB revision 1.0
uhub0: (0x1166) OHCI root hub, class 9/0, rev 1.00/1.00, addr 1
uhub0: 4 ports with 4 removable, self powered
isab0: <PCI-ISA bridge> at device 15.3 on pci0
isa0: <ISA bus> on isab0
pcib1: <ACPI Host-PCI bridge> on acpi0
pci2: <ACPI PCI bus> on pcib1
pcib2: <ACPI Host-PCI bridge> on acpi0
pci4: <ACPI PCI bus> on pcib2
pcib3: <ACPI Host-PCI bridge> on acpi0
pci6: <ACPI PCI bus> on pcib3
em0: <Intel(R) PRO/1000 Network Connection Version - 6.1.4> port 0x2500-0x253f mem 0xfbfe0000-0xfbffffff irq 29 at device 8.0 on pci6
em0: Ethernet address: 00:0d:60:eb:96:2a
em1: <Intel(R) PRO/1000 Network Connection Version - 6.1.4> port 0x2540-0x257f mem 0xfbfc0000-0xfbfdffff irq 30 at device 8.1 on pci6
em1: Ethernet address: 00:0d:60:eb:96:2b
pcib4: <ACPI Host-PCI bridge> on acpi0
pci8: <ACPI PCI bus> on pcib4
ips0: <Adaptec ServeRAID Adapter> mem 0xf3fff000-0xf3ffffff,0xf4000000-0xf7ffffff irq 18 at device 2.0 on pci8
fdc0: <floppy drive controller> port 0x3f0-0x3f5 irq 6 drq 2 on acpi0
fdc0: [FAST]
fd0: <1440-KB 3.5" drive> on fdc0 drive 0
pmtimer0 on isa0
orm0: <ISA Option ROMs> at iomem 0xc0000-0xc7fff,0xc8000-0xc97ff on isa0
atkbdc0: <Keyboard controller (i8042)> at port 0x60,0x64 on isa0
atkbd0: <AT Keyboard> irq 1 on atkbdc0
kbd0 at atkbd0
atkbd0: [GIANT-LOCKED]
ppc0: parallel port not found.
sc0: <System console> at flags 0x100 on isa0
sc0: VGA <16 virtual consoles, flags=0x300>
sio0: configured irq 4 not in bitmap of probed irqs 0
sio0: port may not be enabled
sio0 at port 0x3f8-0x3ff irq 4 flags 0x10 on isa0
sio0: type 8250 or not responding
sio1: configured irq 3 not in bitmap of probed irqs 0
sio1: port may not be enabled
vga0: <Generic ISA VGA> at port 0x3c0-0x3df iomem 0xa0000-0xbffff on isa0
Timecounters tick every 1.000 msec
ipfw2 (+ipv6) initialized, divert loadable, rule-based forwarding enabled, default to accept, logging unlimited
acd0: CDROM <CD-224E/2.9B> at ata0-master UDMA33
ips0: resetting adapter, this may take up to 5 minutes
ips0: adapter type: ServeRAID 6i (sebring)
ips0: logical drives: 1
ips0: Logical Drive 0: RAID1 sectors: 35547136, state OK
ipsd0: <Logical Drive> on ips0
ipsd0: Logical Drive  (17357MB)
SMP: AP CPU #1 Launched!
Trying to mount root from ufs:/dev/ipsd0s1a


>How-To-Repeat:

>Fix:

>Release-Note:
>Audit-Trail:
>Unformatted:

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