Strange igb befavior
Jack Vogel
jfvogel at gmail.com
Thu May 27 09:06:45 UTC 2010
Panic is due to a failure to get enough mbufs, when you make your ring that
big you
hit the problem, I have been experimenting with a change to fix it but am
not yet
completely confident, for the moment don't make your ring so big :)
Jack
On Thu, May 27, 2010 at 1:08 AM, Kirill Yelizarov <ykirill at yahoo.com> wrote:
> Hi
>
> I'm having reproducible panics with 8-Stable of May13 2010. Panic occurs in
> igb code. Panic start to happen when i set hw.igb.rxd="4096" and
> hw.igb.txd="4096" in /boot/loader.conf. Panic happens immediately after boot
> in igb1 code in my case. igb1 is connected to 100Mbit 3COM switch and switch
> is not connected to anything else.
>
> Here is dmesg for igb
> # dmesg | grep igb
> igb0: <Intel(R) PRO/1000 Network Connection version - 1.9.5> port
> 0x2020-0x203f mem 0xb1a20000-0xb1a3ffff,0xb1a44000-0xb1a47fff irq 40 at
> device 0.0 on pci1
> igb0: Using MSIX interrupts with 5 vectors
> igb0: [ITHREAD]
> igb0: [ITHREAD]
> igb0: [ITHREAD]
> igb0: [ITHREAD]
> igb0: [ITHREAD]
> igb0: Ethernet address: 00:15:17:ba:2e:00
> igb1: <Intel(R) PRO/1000 Network Connection version - 1.9.5> port
> 0x2000-0x201f mem 0xb1a00000-0xb1a1ffff,0xb1a40000-0xb1a43fff irq 28 at
> device 0.1 on pci1
> igb1: Using MSIX interrupts with 5 vectors
> igb1: [ITHREAD]
> igb1: [ITHREAD]
> igb1: [ITHREAD]
> igb1: [ITHREAD]
> igb1: [ITHREAD]
> igb1: Ethernet address: 00:15:17:ba:2e:01
> igb1: link state changed to UP
> igb0: link state changed to UP
>
> border2# ifconfig
> igb0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500
> options=13b<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,JUMBO_MTU,TSO4>
> ether 00:15:17:ba:2e:00
> inet 192.168.10.2 netmask 0xffffff00 broadcast 192.168.10.255
> inet 192.168.10.201 netmask 0xffffffff broadcast 192.168.10.201
> inet 192.168.10.202 netmask 0xffffffff broadcast 192.168.10.202
> inet 192.168.10.203 netmask 0xffffffff broadcast 192.168.10.203
> inet 192.168.10.204 netmask 0xffffffff broadcast 192.168.10.204
> media: Ethernet autoselect (1000baseT <full-duplex>)
> status: active
> igb1: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500
> options=13b<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,JUMBO_MTU,TSO4>
> ether 00:15:17:ba:2e:01
> inet XXX.74.229.230 netmask 0xfffffff0 broadcast XXX.74.229.239
> inet XXX.74.229.226 netmask 0xffffffff broadcast XXX.74.229.226
> inet XXX.74.229.227 netmask 0xffffffff broadcast XXX.74.229.227
> media: Ethernet autoselect (100baseTX <full-duplex>)
> status: active
> lo0: flags=8049<UP,LOOPBACK,RUNNING,MULTICAST> metric 0 mtu 16384
> options=3<RXCSUM,TXCSUM>
> inet 127.0.0.1 netmask 0xff000000
> pfsync0: flags=0<> metric 0 mtu 1460
> syncpeer: 224.0.0.240 maxupd: 128
> pflog0: flags=141<UP,RUNNING,PROMISC> metric 0 mtu 33152
>
> #pciconf -lv
> igb0 at pci0:1:0:0: class=0x020000 card=0x34de8086 chip=0x10a78086
> rev=0x02 hdr=0x00
> vendor = 'Intel Corporation'
> device = '82575EB Gigabit Network Connection'
> class = network
> subclass = ethernet
> igb1 at pci0:1:0:1: class=0x020000 card=0x34de8086 chip=0x10a78086
> rev=0x02 hdr=0x00
> vendor = 'Intel Corporation'
> device = '82575EB Gigabit Network Connection'
> class = network
> subclass = ethernet
>
> # netstat -i
> Name Mtu Network Address Ipkts Ierrs Idrop Opkts
> Oerrs Coll
> igb0 1500 <Link#1> 00:15:17:ba:2e:00 2315 0 0 1415
> 0 0
> igb0 1500 192.168.10.0 border2 1664 - - 1412
> - -
> igb0 1500 192.168.10.20 mysql-border2 0 - - 0
> - -
> igb0 1500 192.168.10.20 apache-border2 0 - - 0
> - -
> igb0 1500 192.168.10.20 squid-border2 0 - - 0
> - -
> igb0 1500 192.168.10.20 postgresql-border 1 - - 0
> - -
> igb1 1500 <Link#2> 00:15:17:ba:2e:01 129 0 0 0
> 0 0
> igb1 1500 XXX.74.229.22 border2 0 - - 0
> - -
> igb1 1500 XXX.74.229.22 apache-border2 0 - - 0
> - -
> igb1 1500 XXX.74.229.22 squid-border2 0 - - 0
> - -
> lo0 16384 <Link#3> 1 0 0 1
> 0 0
> lo0 16384 your-net localhost 0 - - 1
> - -
> pfsyn 1460 <Link#4> 0 0 0 0
> 0 0
> pflog 33152 <Link#5> 0 0 0 0
> 0 0
>
> There are several jails on this server.
>
> When i set hw.igb.rxd="2048" and hw.igb.txd="2048" i don't have panic
> anymore.
>
> The reason i tried to add more buffers than default is because i have NFS
> export on this server. But it is on igb0. igb1 is currently doing nothing
> but it will soon once the server will be ready for production.
>
> I didn't get core dump because my system is rather old. But i can do it if
> needed.
>
> Regards,
> Kirill
>
>
>
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