em0 timeout disconnects server
Willem Jan Withagen
wjw at digiware.nl
Mon Aug 1 22:27:57 UTC 2011
A server just all of a sudden dropped from the network.
uptime was 26days.
This got my ZFS server hanging:
Aug 1 23:39:58 zfs kernel: em0: Watchdog timeout -- resetting
Aug 1 23:39:58 zfs kernel: em0: Queue(0) tdh = 942, hw tdt = 977
Aug 1 23:39:58 zfs kernel: em0: TX(0) desc avail = 985,Next TX to Clean
= 938
Aug 1 23:43:24 zfs kernel: em0: Watchdog timeout -- resetting
Aug 1 23:43:24 zfs kernel: em0: Queue(0) tdh = 147, hw tdt = 163
Aug 1 23:43:24 zfs kernel: em0: TX(0) desc avail = 1006,Next TX to
Clean = 145
ifconfig down/up did not fix anything, un/plugging the ethernet did not
do anything either. rebooting did fix it.
Serious maintenance jobs only starts after 0:00.
--WjW
uname -a:
FreeBSD zfs.digiware.nl 8.2-STABLE FreeBSD 8.2-STABLE #10: Wed Jul 6
21:57:36 CEST 2011
root at zfs.digiware.nl:/home/obj/usr/src/src8/src/sys/ZFS amd64
pciconf -lv:
hostb0 at pci0:0:0:0: class=0x060000 card=0xd98015d9 chip=0x29e08086
rev=0x01 hdr=0x00
vendor = 'Intel Corporation'
device = 'X38/X48 (Bearlake) Processor to I/O Controller'
class = bridge
subclass = HOST-PCI
em0 at pci0:0:25:0: class=0x020000 card=0x10bd15d9 chip=0x10bd8086
rev=0x02 hdr=0x00
vendor = 'Intel Corporation'
device = 'Intel 82566DM Gigabit Ethernet Adapter (82566DM)'
class = network
subclass = ethernet
uhci0 at pci0:0:26:0: class=0x0c0300 card=0xd98015d9 chip=0x29378086
rev=0x02 hdr=0x00
vendor = 'Intel Corporation'
device = '82801IB/IR/IH (ICH9 Family) USB Universal Host Controller'
class = serial bus
subclass = USB
uhci1 at pci0:0:26:1: class=0x0c0300 card=0xd98015d9 chip=0x29388086
rev=0x02 hdr=0x00
vendor = 'Intel Corporation'
device = '82801IB/IR/IH (ICH9 Family) USB Universal Host Controller'
class = serial bus
subclass = USB
uhci2 at pci0:0:26:2: class=0x0c0300 card=0xd98015d9 chip=0x29398086
rev=0x02 hdr=0x00
vendor = 'Intel Corporation'
device = '82801IB/IR/IH (ICH9 Family) USB Universal Host Controller'
class = serial bus
subclass = USB
ehci0 at pci0:0:26:7: class=0x0c0320 card=0xd98015d9 chip=0x293c8086
rev=0x02 hdr=0x00
vendor = 'Intel Corporation'
device = '82801IB/IR/IH (ICH9 Family) USB2 Enhanced Host Controller'
class = serial bus
subclass = USB
none0 at pci0:0:27:0: class=0x040300 card=0xd98015d9 chip=0x293e8086
rev=0x02 hdr=0x00
vendor = 'Intel Corporation'
device = '82801IB/IR/IH (ICH9 Family) HD Audio Controller'
class = multimedia
subclass = HDA
pcib1 at pci0:0:28:0: class=0x060400 card=0xd98015d9 chip=0x29408086
rev=0x02 hdr=0x01
vendor = 'Intel Corporation'
device = '82801IB/IR/IH (ICH9 Family) PCIe Root Port 1'
class = bridge
subclass = PCI-PCI
uhci3 at pci0:0:29:0: class=0x0c0300 card=0xd98015d9 chip=0x29348086
rev=0x02 hdr=0x00
vendor = 'Intel Corporation'
device = '82801IB/IR/IH (ICH9 Family) USB Universal Host Controller'
class = serial bus
subclass = USB
uhci4 at pci0:0:29:1: class=0x0c0300 card=0xd98015d9 chip=0x29358086
rev=0x02 hdr=0x00
vendor = 'Intel Corporation'
device = '82801IB/IR/IH (ICH9 Family) USB Universal Host Controller'
class = serial bus
subclass = USB
uhci5 at pci0:0:29:2: class=0x0c0300 card=0xd98015d9 chip=0x29368086
rev=0x02 hdr=0x00
vendor = 'Intel Corporation'
device = '82801IB/IR/IH (ICH9 Family) USB Universal Host Controller'
class = serial bus
subclass = USB
ehci1 at pci0:0:29:7: class=0x0c0320 card=0xd98015d9 chip=0x293a8086
rev=0x02 hdr=0x00
vendor = 'Intel Corporation'
device = '82801IB/IR/IH (ICH9 Family) USB2 Enhanced Host Controller'
class = serial bus
subclass = USB
pcib4 at pci0:0:30:0: class=0x060401 card=0xd98015d9 chip=0x244e8086
rev=0x92 hdr=0x01
vendor = 'Intel Corporation'
device = '82801 Family (ICH2/3/4/5/6/7/8/9,63xxESB) Hub
Interface to PCI Bridge'
class = bridge
subclass = PCI-PCI
isab0 at pci0:0:31:0: class=0x060100 card=0xd98015d9 chip=0x29168086
rev=0x02 hdr=0x00
vendor = 'Intel Corporation'
device = '82801IR (ICH9R) LPC Interface Controller'
class = bridge
subclass = PCI-ISA
atapci1 at pci0:0:31:2: class=0x010601 card=0xd98015d9 chip=0x29228086
rev=0x02 hdr=0x00
vendor = 'Intel Corporation'
device = '82801IB/IR/IH (ICH9 Family) 6 port SATA AHCI Controller'
class = mass storage
subclass = SATA
none1 at pci0:0:31:3: class=0x0c0500 card=0xd98015d9 chip=0x29308086
rev=0x02 hdr=0x00
vendor = 'Intel Corporation'
device = 'Intel(R) ICH9 Family SMBus Controller working fine
with http://download.cnet.com/Chipset-Driver-Inte (8086)'
class = serial bus
subclass = SMBus
none2 at pci0:0:31:6: class=0x118000 card=0x000015d9 chip=0x29328086
rev=0x02 hdr=0x00
vendor = 'Intel Corporation'
device = '82801IB/IR/IH (ICH9 Family) Thermal Subsystem'
class = dasp
pcib2 at pci0:5:0:0: class=0x060400 card=0x00000000 chip=0x032c8086
rev=0x09 hdr=0x01
vendor = 'Intel Corporation'
device = 'PCI Express-to-PCI Express Bridge (6702PXH)'
class = bridge
subclass = PCI-PCI
ioapic0 at pci0:5:0:1: class=0x080020 card=0xd98015d9 chip=0x03268086
rev=0x09 hdr=0x00
vendor = 'Intel Corporation'
device = '6700/6702PXH I/OxAPIC Interrupt Controller A'
class = base peripheral
subclass = interrupt controller
pcib3 at pci0:6:7:0: class=0x060400 card=0x00000000 chip=0x03358086
rev=0x0a hdr=0x01
vendor = 'Intel Corporation'
device = '80331 [Lindsay] I/O processor PCI-X bridge'
class = bridge
subclass = PCI-PCI
arcmsr0 at pci0:7:14:0: class=0x010400 card=0x112017d3 chip=0x112017d3
rev=0x00 hdr=0x00
vendor = 'Areca Technology Corporation'
device = 'ARC-1120 8-Port PCI-X to SATA RAID Controller'
class = mass storage
subclass = RAID
vgapci0 at pci0:17:1:0: class=0x030000 card=0x47501002 chip=0x47501002
rev=0x5c hdr=0x00
vendor = 'ATI Technologies Inc. / Advanced Micro Devices, Inc.'
device = 'ATI 3D Rage Pro 215GP (ATI 3D Rage Pro 215GP)'
class = display
subclass = VGA
atapci0 at pci0:17:4:0: class=0x010185 card=0x82131283 chip=0x82131283
rev=0x00 hdr=0x00
vendor = 'Integrated Technology Express (ITE) Inc'
device = 'IDE Controller (IT8213F)'
class = mass storage
subclass = ATA
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