Date: Sat, 20 Nov 2010 18:24:41 +0200 From: rolnas@gmail.com To: Jeremy Chadwick <freebsd@jdc.parodius.com> Cc: freebsd-stable@freebsd.org Subject: Re: problems with network on em Message-ID: <ED928FE6-E085-4ECA-9BFE-4015C57DE749@gmail.com> In-Reply-To: <20101120155433.GA94454@icarus.home.lan> References: <FAAB9340-52AB-4874-97D7-152B7FA0B466@gmail.com> <20101120155433.GA94454@icarus.home.lan>
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On 2010.11.20, at 17:54, Jeremy Chadwick wrote:
> On Sat, Nov 20, 2010 at 05:09:28PM +0200, rolnas@gmail.com wrote:
>> I'm experiencing network interface stalls on em in FreeBSD 8.1-RELEASE (-p1).
>> It looks like the problem could be solved in 8-STABLE, but should I upgrade to it ?
>> Is it OK to try to get only em driver code and recompile as module and try to run it ?
>>
>> sysctl dev.em.2.stats=1:
>> ...
>> em2: Missed Packets = 101334
>> em2: Receive No Buffers = 488
>> ...
>> em2: RX overruns = 1356
>> em2: watchdog timeouts = 1
>> ...
>>
>> Only "ifconfig em2 down;ifconfig em2 up" helps for some time.
>> The same happens on em0 interface only, but not in the same time.
>> It is production (NAT) router with pf+pfsync+carp and failover over another router.
>> They are old "SunFire X4100" boxes (4GB RAM, 2*2 AMD Opteron 2.2GHz).
>
> You're going to need to provide output from the following, run as root.
> For the pciconf command, please only include the entry that's relevant
> to the device in question (em2). You can also XXX-out the MAC address
> and/or IP addresses if you're worried about security.
>
> $ pciconf -lvc
em2@pci0:1:2:0: class=0x020000 card=0x10118086 chip=0x10108086 rev=0x03 hdr=0x00
vendor = 'Intel Corporation'
device = 'Dual Port Gigabit Ethernet Controller (Copper) (82546EB)'
class = network
subclass = ethernet
cap 01[dc] = powerspec 2 supports D0 D3 current D0
cap 07[e4] = PCI-X 64-bit supports 133MHz, 2048 burst read, 1 split transaction
cap 05[f0] = MSI supports 1 message, 64 bit
> $ dmesg | grep em2
em2: <Intel(R) PRO/1000 Legacy Network Connection 1.0.1> port 0x9400-0x943f mem 0xfbfa0000-0xfbfbffff irq 24 at device 2.0 on pci1
em2: [FILTER]
em2: Ethernet address: 00:14:4f:XX:XX:XX
> $ sysctl dev.em.2
dev.em.2.%desc: Intel(R) PRO/1000 Legacy Network Connection 1.0.1
dev.em.2.%driver: em
dev.em.2.%location: slot=2 function=0
dev.em.2.%pnpinfo: vendor=0x8086 device=0x1010 subvendor=0x8086 subdevice=0x1011 class=0x020000
dev.em.2.%parent: pci1
dev.em.2.debug: -1
dev.em.2.stats: -1
dev.em.2.rx_int_delay: 0
dev.em.2.tx_int_delay: 66
dev.em.2.rx_abs_int_delay: 66
dev.em.2.tx_abs_int_delay: 66
dev.em.2.rx_processing_limit: 100
> $ uname -a
FreeBSD sunfire1.mif 8.1-RELEASE-p1 FreeBSD 8.1-RELEASE-p1 #2: Thu Nov 18 10:39:07 EET 2010 root@sunfire1.mif:/home/local/obj/usr/src/sys/SUNFIRE amd64
Recompiled with DEVICE_POLLING and HZ=2000, carp and many not used devices removed.
> $ netstat -ind -I em2
Name Mtu Network Address Ipkts Ierrs Idrop Opkts Oerrs Coll Drop
em2 1500 <Link#3> 00:14:4f:XX:XX:XX 66430440 101334 0 59339619 1 0 0
em2 1500 192.168.0.0/1 192.168.XX.XXX 633845 - - 3815946 - - -
...
em0 1500 <Link#1> 00:14:4f:XX:XX:XX 167143400 152726 0 143900328 0 0 0
Regards, Rolandas Naujikas
> Thanks.
>
> --
> | Jeremy Chadwick jdc@parodius.com |
> | Parodius Networking http://www.parodius.com/ |
> | UNIX Systems Administrator Mountain View, CA, USA |
> | Making life hard for others since 1977. PGP: 4BD6C0CB |
>
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