Date: Mon, 24 Sep 2012 21:41:28 -0700 From: Garrett Cooper <yanegomi@gmail.com> To: "Rudy (bulk)" <crapsh@monkeybrains.net> Cc: freebsd-net <freebsd-net@freebsd.org>, Ryan Stone <rysto32@gmail.com> Subject: Re: ping: sendto: No buffer space available Message-ID: <CAGH67wQ6eLjgc6eeeME22NawehN-T4Z9mJrg5z%2BxcpT5-wUeeQ@mail.gmail.com> In-Reply-To: <50611FAE.7060809@monkeybrains.net> References: <5060884C.3050709@monkeybrains.net> <CAFMmRNzUbiSKhLxiFx-fLrw7LWJ-7h921oaOk-V2ekbSb0TpFg@mail.gmail.com> <50611FAE.7060809@monkeybrains.net>
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On Mon, Sep 24, 2012 at 8:06 PM, Rudy (bulk) <crapsh@monkeybrains.net> wrote:
> On 9/24/12 5:01 PM, Ryan Stone wrote:
>>
>> Can you get the output of netstat -I emX -d?
>
> ...
>
>>
>> I suspect that you are seeing the em TX queue fill up. If so you
>> should see output drops reported by the em interface.
>>
> I do see 205 in the 'Drop' column. I ran the command twice two hours
> apart... I am seeing Ierrsincrement in a 2 hours window...
>
> #date && netstat -I em1 -d
> Mon Sep 24 17:47:14 PDT 2012
> Name Mtu Network Address Ipkts Ierrs Idrop Opkts
> Oerrs Coll Drop
> em1 1500 <Link#2> 00:25:90:26:62:01 110170687801 4738950 0
> 85411108876 0 0 205
> em1 1500 X.X.X.X coconut.coconut-g 111858 - - 6536889
> - - -
> em1 1500 fe80::225:90f fe80::225:90ff:fe 0 - - 0 -
> - -
>
> # date && netstat -I em1 -d
> Mon Sep 24 19:48:44 PDT 2012
> Name Mtu Network Address Ipkts Ierrs Idrop Opkts
> Oerrs Coll Drop
> em1 1500 <Link#2> 00:25:90:26:62:01 110723416486 4768451 0
> 85861866459 0 0 205
> em1 1500 X.X.X.X coconut.coconut-g 119244 - - 6558411 -
> - -
> em1 1500 fe80::225:90f fe80::225:90ff:fe 0 - - 0 -
> - -
>
> Checking all the interfaces, there are a lot more drops/Ierrs on em2... The
> igb devices (PCIe card) seem a lot better than the Supermicro motherboard em
> devices. Is this an on-board vs mb thing, or em vs igb thing?
>
> # date && netstat -id
> Mon Sep 24 19:53:49 PDT 2012
> Name Mtu Network Address Ipkts Ierrs Idrop Opkts
> Oerrs Coll Drop
> em0 1500 <Link#1> 00:25:90:26:62:00 6887931271 844 0 18966954063
> 0 0 0
> em0 1500 X.X.X.X coconut 1804123 - - 1962796
> - - -
> em0 1500 fe80::225:90f fe80::225:90ff:fe 0 - - 1 -
> - -
> em1 1500 <Link#2> 00:25:90:26:62:01 110745957108 4770615 0
> 85882005650 0 0 205
> em1 1500 X.X.X.Xcoconut.coconut-g 119573 - - 6559700 -
> - -
> em1 1500 fe80::225:90f fe80::225:90ff:fe 0 - - 0 -
> - -
> igb0 1500 <Link#3> 00:1b:21:af:54:4e 53194278790 1169 0
> 85861440371 0 0 0
> igb0 1500 fe80::21b:21f fe80::21b:21ff:fe 0 - - 1 -
> - -
> igb1 1500 <Link#4> 00:1b:21:af:54:4f 43905355772 0 0 24817874325
> 0 0 0
> igb1 1500 fe80::21b:21f fe80::21b:21ff:fe 0 - - 1 -
> - -
> usbus 0 <Link#5> 0 0 0 0 0
> 0 0
> usbus 0 <Link#6> 0 0 0 0 0
> 0 0
> usbus 0 <Link#7> 0 0 0 0 0
> 0 0
> usbus 0 <Link#8> 0 0 0 0 0
> 0 0
> em2 1500 <Link#9> 00:25:90:26:62:02 2458414787 580252415422 0
> 1640052168 0 0 37284
> em2 1500 X.X.X.Xcoconut.guava-coc 93119 - - 209407 -
> - -
> em2 1500 fe80::225:90f fe80::225:90ff:fe 0 - - 2 -
> - -
> em3 1500 <Link#10> 00:25:90:26:62:03 57160105 0 0 87941536 0
> 0 0
> em3 1500 X.X.X.XAS32329.weed-mb.c 1014267 - - 1208726 -
> - -
> em3 1500 fe80::225:90f fe80::225:90ff:fe 0 - - 1 -
> - -
I saw similar issues (although maybe not tied to e1000 directly)
when messing around with IPv6 interfaces (I have em and cxgb at my
immediate disposal right now).
Thanks,
-Garrett
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