Re: Regarding Netmap in VM

2014-05-26 Thread Jack Vogel
I don't think we've ever tried this at Intel either. I had meant to check the ixv code to see if it had your code in it Luigi but got distracted, if it doesn't then it obviously can't work for the case of a VM. I think with the new 40G VF driver, when that gets committed it might be desirable to h

Re: Allowing CARP to use arbitrary OUI prefix and allocating block from FreeBSD's OUI space assignment for that

2014-05-26 Thread George Neville-Neil
On 21 May 2014, at 10:58, Eygene Ryabinkin wrote: > Mon, May 12, 2014 at 12:39:49AM +0400, Eygene Ryabinkin wrote: >> Sun, May 11, 2014 at 04:30:32PM -0400, George Neville-Neil wrote: >>> On May 8, 2014, at 16:04 , Gleb Smirnoff wrote: On Thu, May 08, 2014 at 12:10:48PM +0400, Eygene Ryabink

Re: Regarding Netmap in VM

2014-05-26 Thread Luigi Rizzo
On Thu, May 22, 2014 at 09:28:45AM +0530, Prashant Upadhyaya wrote: > Hi, > > Suppose I am on x86 with Intel 82599 NIC. > Now I spawn a VM (running FreeBSD as guest OS with Netmap support) > For better I/O performance, I have two main choices -- > > 1. Pass the 82599 NIC as a PCI passthrough devi

Re: TCP stack lock contention with short-lived connections

2014-05-26 Thread Julien Charbon
Hi Navdeep On 23/05/14 23:37, Navdeep Parhar wrote: On 05/23/14 13:52, Julien Charbon wrote: On 23/05/14 14:06, Julien Charbon wrote: On 27/02/14 11:32, Julien Charbon wrote: On 07/11/13 14:55, Julien Charbon wrote: On Mon, 04 Nov 2013 22:21:04 +0100, Julien Charbon wrote: I have put tec

Current problem reports assigned to freebsd-net@FreeBSD.org

2014-05-26 Thread FreeBSD bugmaster
Note: to view an individual PR, use: http://www.freebsd.org/cgi/query-pr.cgi?pr=(number). The following is a listing of current problems submitted by FreeBSD users. These represent problem reports covering all versions including experimental development code and obsolete releases. S Tracker

Re: Problem: no locking around IPv6 prefix structures in prelist_remove

2014-05-26 Thread Steve Read
OK, thanks. -- Steve Read On 26.05.2014 11:24, Bjoern A. Zeeb wrote: On 26 May 2014, at 09:11 , Steve Read wrote: I have recently encountered an interesting double-free crash in prelist_remove() (management of IPv6 prefixes used by interface addresses) using a modified version of 9.2. We'

Re: Problem: no locking around IPv6 prefix structures in prelist_remove

2014-05-26 Thread Bjoern A. Zeeb
On 26 May 2014, at 09:11 , Steve Read wrote: > I have recently encountered an interesting double-free crash in > prelist_remove() (management of IPv6 prefixes used by interface addresses) > using a modified version of 9.2. We've seen this once. > > It appears that two userland threads tried

Problem: no locking around IPv6 prefix structures in prelist_remove

2014-05-26 Thread Steve Read
I have recently encountered an interesting double-free crash in prelist_remove() (management of IPv6 prefixes used by interface addresses) using a modified version of 9.2. We've seen this once. It appears that two userland threads tried simultaneously to remove the last interface address that