em network issues
Russell Jackson
raj at csub.edu
Sat Oct 28 21:52:56 UTC 2006
On Mon, Oct 23, 2006 at 02:50:44PM -0400, Mikhail Teterin wrote:
> ????????? 23 ??????? 2006 13:37, Mikhail Teterin ???????:
> > > We aren't currently speaking about performance, we need to know whether
> > > kernel with DEVICE_POLLING option makes NIC work stable.
> >
> > Yes, that seems to be the case...
>
> I spoke too soon :-( It took a lot longer this time (without polling), but the
> network hung again on the box.
>
> Everything recovered by itself after I walked over and simply pushed the Shift
> button on the machine's keyboard...
>
> -mi
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I believe we had the same exact experience the other day when a dell pe2850
dropped off the network for two hours in the morning. I wasn't there at
the time, but a coworker said that after he touched the keyboard it
seemed to come back to life.
We decided to move to 6.2-PRERELEASE after that incident to see if would
help. So far, we haven't had another incident of that type, but it
hasn't been running for more than a few days with the changes. I also have
not had the chance to test the recent if_em merge.
Just to note, I have the usb controller disabled in the bios due to it
causing interrupt problems with the em NIC when I first installed
6.1-RELEASE as others have reported. I haven't tried turning it back on
to see if the problem remains. The apic is also enabled (SMP box). I
have not tried enabling DEVICE_POLLING.
data point:
em0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
options=b<RXCSUM,TXCSUM,VLAN_MTU>
inet xxx.xxx.1.5 netmask 0xffff0000 broadcast xxx.xxx.255.255
inet xxx.xxx.1.91 netmask 0xffffffff broadcast xxx.xxx.1.91
inet xxx.xxx.1.8 netmask 0xffffffff broadcast xxx.xxx.1.8
inet xxx.xxx.1.56 netmask 0xffffffff broadcast xxx.xxx.1.56
ether 00:13:72:4b:70:e7
media: Ethernet autoselect (1000baseTX <full-duplex>)
status: active
em1: flags=8802<BROADCAST,SIMPLEX,MULTICAST> mtu 1500
options=b<RXCSUM,TXCSUM,VLAN_MTU>
ether 00:13:72:4b:70:e8
media: Ethernet autoselect
status: no carrier
lo0: flags=8049<UP,LOOPBACK,RUNNING,MULTICAST> mtu 16384
inet6 ::1 prefixlen 128
inet 127.0.0.1 netmask 0xff000000
interrupt total rate
irq1: atkbd0 1195 0
irq4: sio0 12374 0
irq6: fdc0 12 0
irq14: ata0 140 0
irq46: amr0 32780148 98
irq64: em0 65465147 196
cpu0: timer 663314472 1993
cpu1: timer 663568256 1994
Total 1425141744 4282
hostb0 at pci0:0:0: class=0x060000 card=0x016d1028 chip=0x35908086 rev=0x09 hdr=0x00
vendor = 'Intel Corporation'
device = 'E752x Server Memory Controller Hub'
class = bridge
subclass = HOST-PCI
pcib1 at pci0:2:0: class=0x060400 card=0x00000050 chip=0x35958086 rev=0x09 hdr=0x01
vendor = 'Intel Corporation'
device = 'E752x Memory Controller Hub PCI Express Port A0'
class = bridge
subclass = PCI-PCI
pcib4 at pci0:4:0: class=0x060400 card=0x00000050 chip=0x35978086 rev=0x09 hdr=0x01
vendor = 'Intel Corporation'
device = 'E752x Memory Controller Hub PCI Express Port B0'
class = bridge
subclass = PCI-PCI
pcib5 at pci0:5:0: class=0x060400 card=0x00000050 chip=0x35988086 rev=0x09 hdr=0x01
vendor = 'Intel Corporation'
device = 'E752x Memory Controller Hub PCI Express Port B1'
class = bridge
subclass = PCI-PCI
pcib8 at pci0:6:0: class=0x060400 card=0x00000050 chip=0x35998086 rev=0x09 hdr=0x01
vendor = 'Intel Corporation'
device = 'E752x Memory Controller Hub PCI Express Port C0'
class = bridge
subclass = PCI-PCI
pcib11 at pci0:30:0: class=0x060400 card=0x00000000 chip=0x244e8086 rev=0xc2 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=0x24d08086 rev=0x02 hdr=0x00
vendor = 'Intel Corporation'
device = '82801EB/ER (ICH5/ICH5R) LPC Interface Bridge'
class = bridge
subclass = PCI-ISA
atapci0 at pci0:31:1: class=0x01018a card=0x016d1028 chip=0x24db8086 rev=0x02 hdr=0x00
vendor = 'Intel Corporation'
device = '82801EB/ER (ICH5/ICH5R) EIDE Controller'
class = mass storage
subclass = ATA
pcib2 at pci1:0:0: class=0x060400 card=0x00000044 chip=0x03308086 rev=0x06 hdr=0x01
vendor = 'Intel Corporation'
device = '80332 [Dobson] I/O processor A-segment Bridge'
class = bridge
subclass = PCI-PCI
pcib3 at pci1:0:2: class=0x060400 card=0x00000044 chip=0x03328086 rev=0x06 hdr=0x01
vendor = 'Intel Corporation'
device = '80332 [Dobson] I/O processor B-segment Bridge'
class = bridge
subclass = PCI-PCI
amr0 at pci2:14:0: class=0x010400 card=0x016d1028 chip=0x00131028 rev=0x06 hdr=0x00
vendor = 'Dell Computer Corporation'
class = mass storage
subclass = RAID
pcib6 at pci5:0:0: class=0x060400 card=0x00000044 chip=0x03298086 rev=0x09 hdr=0x01
vendor = 'Intel Corporation'
device = '6700PXH PCI Express-to-PCI Express Bridge A'
class = bridge
subclass = PCI-PCI
pcib7 at pci5:0:2: class=0x060400 card=0x00000044 chip=0x032a8086 rev=0x09 hdr=0x01
vendor = 'Intel Corporation'
device = '6700PXH PCI Express-to-PCI Express Bridge B'
class = bridge
subclass = PCI-PCI
em0 at pci6:7:0: class=0x020000 card=0x016d1028 chip=0x10768086 rev=0x05 hdr=0x00
vendor = 'Intel Corporation'
device = '82547EI Gigabit Ethernet Controller'
class = network
subclass = ethernet
em1 at pci7:8:0: class=0x020000 card=0x016d1028 chip=0x10768086 rev=0x05 hdr=0x00
vendor = 'Intel Corporation'
device = '82547EI Gigabit Ethernet Controller'
class = network
subclass = ethernet
pcib9 at pci8:0:0: class=0x060400 card=0x00000044 chip=0x03298086 rev=0x09 hdr=0x01
vendor = 'Intel Corporation'
device = '6700PXH PCI Express-to-PCI Express Bridge A'
class = bridge
subclass = PCI-PCI
pcib10 at pci8:0:2: class=0x060400 card=0x00000044 chip=0x032a8086 rev=0x09 hdr=0x01
vendor = 'Intel Corporation'
device = '6700PXH PCI Express-to-PCI Express Bridge B'
class = bridge
subclass = PCI-PCI
none0 at pci11:13:0: class=0x030000 card=0x016d1028 chip=0x51591002 rev=0x00 hdr=0x00
vendor = 'ATI Technologies Inc'
device = 'RV100 Radeon 7000 / Radeon VE'
class = display
subclass = VGA
--
Russell A. Jackson
Network Analyst
California State University, Bakersfield
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