Re: TCP Reassembly Issues

2011-11-25 Thread Stefan Bethke
Am 25.11.2011 um 00:35 schrieb Adrian Chadd: Have you tried disabling the tcp offload features of your NIC? I'm using my em0 as a VLAN trunk, and I'm under the impression that that disables all the hardware assists in the controller. Also, the LAN vlan is bridged via OpenVPN and tap, making

Re: TCP Reassembly Issues

2011-11-25 Thread Raul
El 24/11/2011 23:06, Stefan Bethke escribió: [] I regularly copy large files off my Tivo trans-atlantic (125ms RTT), and TCP connections currently stall after about 500 megs, never recovering. I suspect this is connected, as it started immediately after upgrading the machine to

What about network virtualization for jails?

2011-11-25 Thread Denny Schierz
hi, I searched for network problems for my jail (can get out, via ssh from jail, but not ssh into the jail, other as the host) and reading something about network virtualization for jails: http://imunes.tel.fer.hr/virtnet/ does this work for FreeBSD9 ? cu

Re: What about network virtualization for jails?

2011-11-25 Thread Shawn Webb
Yes. You can use VIMAGE/vnet with jails. In fact, I just blogged about how to set it up: http://0xfeedface.org/blog/2011-11-21/lattera/freebsd-vnet-jail-admin-project I'm also writing a php project that will help administer FreeBSD jails: https://github.com/lattera/jailadmin Thanks, Shawn On

Re: TCP Reassembly Issues

2011-11-25 Thread George Mitchell
On 11/24/11 21:00, Jeremy Chadwick wrote: [...] If none of this solves the problem, then I consider this a priority 0 blocker (read: all hands on deck) issue with the IP stack in FreeBSD 9.x and will need immediate attention. I would strongly recommend a developer or clueful end-user begin

Re: What about network virtualization for jails?

2011-11-25 Thread Denny Schierz
hi Shawn, Am 25.11.2011 um 16:54 schrieb Shawn Webb: Yes. You can use VIMAGE/vnet with jails. In fact, I just blogged about how to set it up: http://0xfeedface.org/blog/2011-11-21/lattera/freebsd-vnet-jail-admin-project I'm also writing a php project that will help administer FreeBSD

Re: What about network virtualization for jails?

2011-11-25 Thread Shawn Webb
I don't really know much about how using vnet with jails will affect NFS services. I would suggest setting up a test environment before attempting anything on production servers. Please also note that my jail admin project is written mainly to fit my particular use-case, but I'll always gladly

Sandy Bridge and MCA UNCOR PCC (problem + solution)

2011-11-25 Thread Thomas Zander
List, here's a rant about a recent problem I had and the surprising solution. I recently had to investigate weird unexpected issues on a workstation. Relevant hardware: Asus P8B-WS, Xeon E3-1260L (Sandy Bride, Intel HD-2000 graphics) Since we don't have kms and friends in STABLE yet, and I can

Re: What about network virtualization for jails?

2011-11-25 Thread Adam Vande More
On Fri, Nov 25, 2011 at 9:18 AM, Denny Schierz linuxm...@4lin.net wrote: hi, I searched for network problems for my jail (can get out, via ssh from jail, but not ssh into the jail, other as the host) and reading something about network virtualization for jails:

igb hang when cable unplugged

2011-11-25 Thread Daniel Kalchev
I am observing an transmit hang of the igb driver when the cable is unplugged. It only recovers after unit reset, such as ifconfig igb0 down up This is with kernel FreeBSD xxx 8.2-STABLE FreeBSD 8.2-STABLE #0: Fri Sep 30 16:17:47 EEST 2011 root@xxx:/usr/obj/usr/src/sys/GENERIC amd64

Re: What about network virtualization for jails?

2011-11-25 Thread Daniel Kalchev
On Nov 25, 2011, at 10:36 PM, Shawn Webb wrote: I don't really know much about how using vnet with jails will affect NFS services. I would suggest setting up a test environment before attempting anything on production servers. I was unsuccessful in setting up NFS from within a VIMAGE jail --

Re: igb hang when cable unplugged

2011-11-25 Thread Jack Vogel
On Fri, Nov 25, 2011 at 1:18 PM, Daniel Kalchev dan...@digsys.bg wrote: I am observing an transmit hang of the igb driver when the cable is unplugged. It only recovers after unit reset, such as ifconfig igb0 down up This is with kernel FreeBSD xxx 8.2-STABLE FreeBSD 8.2-STABLE #0: Fri Sep

Re: TCP Reassembly Issues

2011-11-25 Thread Rick Macklem
George Mitchell wrote: On 11/24/11 21:00, Jeremy Chadwick wrote: [...] If none of this solves the problem, then I consider this a priority 0 blocker (read: all hands on deck) issue with the IP stack in FreeBSD 9.x and will need immediate attention. I would strongly recommend a

Re: TCP Reassembly Issues

2011-11-25 Thread Jeremy Chadwick
On Fri, Nov 25, 2011 at 01:05:06PM -0500, George Mitchell wrote: On 11/24/11 21:00, Jeremy Chadwick wrote: [...] If none of this solves the problem, then I consider this a priority 0 blocker (read: all hands on deck) issue with the IP stack in FreeBSD 9.x and will need immediate attention.

Re: TCP Reassembly Issues

2011-11-25 Thread Lawrence Stewart
On 11/25/11 13:01, Lawrence Stewart wrote: On 11/24/11 18:02, Kris Bauer wrote: Hello, I am currently experiencing an issue with FreeBSD 9.0-RC2 r227852 where the net.inet.tcp.reass.curesegments value is constantly increasing (and not descreasing when there is nominal traffic with the box). It

Re: TCP Reassembly Issues

2011-11-25 Thread Kris Bauer
On Fri, Nov 25, 2011 at 11:23 PM, Lawrence Stewart lstew...@freebsd.orgwrote: On 11/25/11 13:01, Lawrence Stewart wrote: On 11/24/11 18:02, Kris Bauer wrote: Hello, I am currently experiencing an issue with FreeBSD 9.0-RC2 r227852 where the net.inet.tcp.reass.curesegments value is

Re: TCP Reassembly Issues

2011-11-25 Thread Jeremy Chadwick
On Sat, Nov 26, 2011 at 12:49:24AM -0600, Kris Bauer wrote: On Fri, Nov 25, 2011 at 11:23 PM, Lawrence Stewart lstew...@freebsd.orgwrote: On 11/25/11 13:01, Lawrence Stewart wrote: On 11/24/11 18:02, Kris Bauer wrote: Hello, I am currently experiencing an issue with FreeBSD