em0 watchdog timeouts

[Jack Vogel]

Increase the size of your TX ring, meaning the number of TX descriptors.

You said this is a quad port card, what size PCI E slot are you in? On
some motherboards slot connectors might suggest its of a certain size
but its not really wired fully. If you are not in a x8 lane slot move it to
one.

What about system tuning?

Some ideas, let me know how it goes.

Jack


On Wed, Sep 30, 2009 at 3:28 PM, Rudy <crapsh at monkeybrains.net> wrote:

> Rudy wrote:
>
>> Rudy wrote:
>>
>>> I am having watchdog timeout issues
>>>
>>
> Oh, here is some more info from 'pciconf -lcv'.
>
> I offloaded half the traffic from em0 to em5 and there has only been one
> watchdog timeout today (on em5) vs. 10 watchdog timeouts yesterday.  We do
> streaming out of our network and the 3 second outage really messes things
> up...
>
>
> em0 at pci0:5:0:0: class=0x020000 card=0x10a48086 chip=0x10a48086 rev=0x06
> hdr=0x00
>    vendor     = 'Intel Corporation'
>    device     = '82571EB Gigabit Ethernet Controller'
>    class      = network
>    subclass   = ethernet
>    cap 01[c8] = powerspec 2  supports D0 D3  current D0
>    cap 05[d0] = MSI supports 1 message, 64 bit enabled with 1 message
>    cap 10[e0] = PCI-Express 1 endpoint max data 128(256) link x4(x4)
> em1 at pci0:5:0:1: class=0x020000 card=0x10a48086 chip=0x10a48086 rev=0x06
> hdr=0x00
>    vendor     = 'Intel Corporation'
>    device     = '82571EB Gigabit Ethernet Controller'
>    class      = network
>    subclass   = ethernet
>    cap 01[c8] = powerspec 2  supports D0 D3  current D0
>    cap 05[d0] = MSI supports 1 message, 64 bit enabled with 1 message
>    cap 10[e0] = PCI-Express 1 endpoint max data 128(256) link x4(x4)
> em2 at pci0:6:0:0: class=0x020000 card=0x10a48086 chip=0x10a48086 rev=0x06
> hdr=0x00
>    vendor     = 'Intel Corporation'
>    device     = '82571EB Gigabit Ethernet Controller'
>    class      = network
>    subclass   = ethernet
>    cap 01[c8] = powerspec 2  supports D0 D3  current D0
>    cap 05[d0] = MSI supports 1 message, 64 bit enabled with 1 message
>    cap 10[e0] = PCI-Express 1 endpoint max data 128(256) link x4(x4)
> em3 at pci0:6:0:1: class=0x020000 card=0x10a48086 chip=0x10a48086 rev=0x06
> hdr=0x00
>    vendor     = 'Intel Corporation'
>    device     = '82571EB Gigabit Ethernet Controller'
>    class      = network
>    subclass   = ethernet
>    cap 01[c8] = powerspec 2  supports D0 D3  current D0
>    cap 05[d0] = MSI supports 1 message, 64 bit enabled with 1 message
>    cap 10[e0] = PCI-Express 1 endpoint max data 128(256) link x4(x4)
> em4 at pci0:13:0:0:        class=0x020000 card=0x108c15d9 chip=0x108c8086
> rev=0x03 hdr=0x00
>    vendor     = 'Intel Corporation'
>    device     = '82573E Intel Corporation 82573E Gigabit Ethernet
> Controller (Copper)'
>    class      = network
>    subclass   = ethernet
>    cap 01[c8] = powerspec 2  supports D0 D3  current D0
>    cap 05[d0] = MSI supports 1 message, 64 bit enabled with 1 message
>    cap 10[e0] = PCI-Express 1 endpoint max data 128(256) link x1(x1)
> em5 at pci0:15:0:0:        class=0x020000 card=0x109a15d9 chip=0x109a8086
> rev=0x00 hdr=0x00
>    vendor     = 'Intel Corporation'
>    device     = '82573L Intel PRO/1000 PL Network Adaptor'
>    class      = network
>    subclass   = ethernet
>    cap 01[c8] = powerspec 2  supports D0 D3  current D0
>    cap 05[d0] = MSI supports 1 message, 64 bit enabled with 1 message
>    cap 10[e0] = PCI-Express 1 endpoint max data 128(256) link x1(x1)
> vgapci0 at pci0:17:3:0:    class=0x030000 card=0xd18015d9 chip=0x515e1002
> rev=0x02
>