em0 watchdog timeouts
Rudy (bulk)
crapsh at monkeybrains.net
Thu Oct 1 21:07:06 UTC 2009
I have rxd and txd set to 1024. How high can I safely go?
# add more descriptors to em devices.
hw.em.rxd=1024
hw.em.txd=1024
### other settings... I have tried rx_int_delay=0 and 32 ... doesn't
seem to make the watchdogs go away.
dev.em.4.rx_int_delay: 32
dev.em.4.tx_int_delay: 66
dev.em.4.rx_abs_int_delay: 66
dev.em.4.tx_abs_int_delay: 66
dev.em.4.rx_processing_limit: 300
I am using a PCI-Express (x8) PCI-e slot according to the motherboard specs:
http://supermicro.com/products/motherboard/Xeon3000/3210/X7SBi.cfm
Rudy
Jack Vogel wrote:
> 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
>>
>>
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