From chsnyder at gmail.com Fri May 1 11:28:04 2015 From: chsnyder at gmail.com (Chris Snyder) Date: Fri, 1 May 2015 11:28:04 -0400 Subject: [talk] I can't tell if this is a joke, or for real. In-Reply-To: <201504301516.t3UFGVTO000342@rs101.luxsci.com> References: <201504301516.t3UFGVTO000342@rs101.luxsci.com> Message-ID: On Thu, Apr 30, 2015 at 11:16 AM, Isaac (.ike) Levy < ike at blackskyresearch.net> wrote: > > Buzzing around me today, > > http://notcp.io > > I'm so glad it linked to this: http://apenwarr.ca/log/?m=201205 Damn I love it when smart people write well. -------------- next part -------------- An HTML attachment was scrubbed... URL: From jhb at freebsd.org Fri May 8 10:30:34 2015 From: jhb at freebsd.org (John Baldwin) Date: Fri, 08 May 2015 10:30:34 -0400 Subject: [talk] NYC*BUG Announcements In-Reply-To: <553137BA.8050409@nomadlogic.org> References: <552FB84E.1010004@ceetonetechnology.com> <553137BA.8050409@nomadlogic.org> Message-ID: <2062329.i3JV6YKKV3@ralph.baldwin.cx> On Friday, April 17, 2015 09:41:30 AM Pete Wright wrote: > > On 04/16/15 06:25, George Rosamond wrote: > > > > > June 3 - "FreeBSD's NUMA" John Baldwin > > > > oh shit this is huge! > > i can't wait to watch the video of this talk. do we know if there is > any doc's available on this topic already? NUMA is something of a > black-art on linux so I am keen to see where FreeBSD is in terms of it's > implementation...also I have gear to test this on... In a word: it's early in implementation. :-/ There are some bits and pieces, but it's a bit of a tough nut to crack. -- John Baldwin From george at ceetonetechnology.com Fri May 8 10:36:42 2015 From: george at ceetonetechnology.com (George Rosamond) Date: Fri, 08 May 2015 10:36:42 -0400 Subject: [talk] NYC*BUG Announcements In-Reply-To: <2062329.i3JV6YKKV3@ralph.baldwin.cx> References: <552FB84E.1010004@ceetonetechnology.com> <553137BA.8050409@nomadlogic.org> <2062329.i3JV6YKKV3@ralph.baldwin.cx> Message-ID: <554CC9FA.4090706@ceetonetechnology.com> John Baldwin: > On Friday, April 17, 2015 09:41:30 AM Pete Wright wrote: >> >> On 04/16/15 06:25, George Rosamond wrote: >> >>> >>> June 3 - "FreeBSD's NUMA" John Baldwin >>> >> >> oh shit this is huge! >> >> i can't wait to watch the video of this talk. do we know if there is >> any doc's available on this topic already? NUMA is something of a >> black-art on linux so I am keen to see where FreeBSD is in terms of it's >> implementation...also I have gear to test this on... > > In a word: it's early in implementation. :-/ There are some bits and pieces, > but it's a bit of a tough nut to crack. > Pete should just move back home and he can see it live and direct. g From christos at zoulas.com Fri May 8 10:59:42 2015 From: christos at zoulas.com (Christos Zoulas) Date: Fri, 8 May 2015 10:59:42 -0400 Subject: [talk] NYC*BUG Announcements In-Reply-To: <554CC9FA.4090706@ceetonetechnology.com> from George Rosamond (May 8, 10:36am) Message-ID: <20150508145942.35CB917FDA8@rebar.astron.com> On May 8, 10:36am, george at ceetonetechnology.com (George Rosamond) wrote: -- Subject: Re: [talk] NYC*BUG Announcements | Pete should just move back home and he can see it live and direct. NYCBug should institute PPV fees. christos From george at ceetonetechnology.com Fri May 8 11:02:57 2015 From: george at ceetonetechnology.com (George Rosamond) Date: Fri, 08 May 2015 11:02:57 -0400 Subject: [talk] NYC*BUG Announcements In-Reply-To: <20150508145942.35CB917FDA8@rebar.astron.com> References: <20150508145942.35CB917FDA8@rebar.astron.com> Message-ID: <554CD021.8080104@ceetonetechnology.com> Christos Zoulas: > On May 8, 10:36am, george at ceetonetechnology.com (George Rosamond) wrote: > -- Subject: Re: [talk] NYC*BUG Announcements > > | Pete should just move back home and he can see it live and direct. > > NYCBug should institute PPV fees. After the Mayweather v Pacquiao fight on Saturday, HBO stopped negotiations with us. g From pete at nomadlogic.org Fri May 8 13:13:10 2015 From: pete at nomadlogic.org (Pete Wright) Date: Fri, 08 May 2015 10:13:10 -0700 Subject: [talk] NYC*BUG Announcements In-Reply-To: <20150508145942.35CB917FDA8@rebar.astron.com> References: <20150508145942.35CB917FDA8@rebar.astron.com> Message-ID: <554CEEA6.5080402@nomadlogic.org> On 05/08/15 07:59, Christos Zoulas wrote: > On May 8, 10:36am, george at ceetonetechnology.com (George Rosamond) wrote: > -- Subject: Re: [talk] NYC*BUG Announcements > > | Pete should just move back home and he can see it live and direct. > > NYCBug should institute PPV fees. hah now that's an idea i can stand behind...while i pirate the feed and re-sell it on a secondary market :) -p -- Pete Wright pete at nomadlogic.org twitter => @nomadlogicLA From pete at nomadlogic.org Fri May 8 13:13:56 2015 From: pete at nomadlogic.org (Pete Wright) Date: Fri, 08 May 2015 10:13:56 -0700 Subject: [talk] NYC*BUG Announcements In-Reply-To: <2062329.i3JV6YKKV3@ralph.baldwin.cx> References: <552FB84E.1010004@ceetonetechnology.com> <553137BA.8050409@nomadlogic.org> <2062329.i3JV6YKKV3@ralph.baldwin.cx> Message-ID: <554CEED4.9090204@nomadlogic.org> On 05/08/15 07:30, John Baldwin wrote: > On Friday, April 17, 2015 09:41:30 AM Pete Wright wrote: >> >> On 04/16/15 06:25, George Rosamond wrote: >> >>> >>> June 3 - "FreeBSD's NUMA" John Baldwin >>> >> >> oh shit this is huge! >> >> i can't wait to watch the video of this talk. do we know if there is >> any doc's available on this topic already? NUMA is something of a >> black-art on linux so I am keen to see where FreeBSD is in terms of it's >> implementation...also I have gear to test this on... > > In a word: it's early in implementation. :-/ There are some bits and pieces, > but it's a bit of a tough nut to crack. > well consider me jazzed about helping test this in any capacity i can as development moves forward :) -pete -- Pete Wright pete at nomadlogic.org twitter => @nomadlogicLA From mcevoy.pat at gmail.com Tue May 12 16:29:07 2015 From: mcevoy.pat at gmail.com (Patrick McEvoy) Date: Tue, 12 May 2015 16:29:07 -0400 Subject: [talk] NYC*BUG Announcements In-Reply-To: <554CEED4.9090204@nomadlogic.org> References: <552FB84E.1010004@ceetonetechnology.com> <553137BA.8050409@nomadlogic.org> <2062329.i3JV6YKKV3@ralph.baldwin.cx> <554CEED4.9090204@nomadlogic.org> Message-ID: <55526293.7040206@gmail.com> Pete Wright wrote: > > On 05/08/15 07:30, John Baldwin wrote: >> On Friday, April 17, 2015 09:41:30 AM Pete Wright wrote: >>> On 04/16/15 06:25, George Rosamond wrote: >>> >>>> June 3 - "FreeBSD's NUMA" John Baldwin >>>> >>> oh shit this is huge! >>> >>> i can't wait to watch the video of this talk. do we know if there is >>> any doc's available on this topic already? NUMA is something of a >>> black-art on linux so I am keen to see where FreeBSD is in terms of it's >>> implementation...also I have gear to test this on... >> In a word: it's early in implementation. :-/ There are some bits and pieces, >> but it's a bit of a tough nut to crack. >> > > > well consider me jazzed about helping test this in any capacity i can as > development moves forward :) > > -pete > > > Hello All, Would it be possible to get a little more info about this upcoming talk on the NYCBUG site? Currently this talk info page is empty bar the name and the speaker. It is only an issue as it is now the first thing you see when you go to the nycbug site. Thank you John for giving this talk. P From mcevoy.pat at gmail.com Tue May 12 16:43:51 2015 From: mcevoy.pat at gmail.com (Patrick McEvoy) Date: Tue, 12 May 2015 16:43:51 -0400 Subject: [talk] Bitrig video posted Message-ID: <55526607.90105@gmail.com> https://youtu.be/h4FhgBdYSUU You may have heard already, but I wanted to post here that the Bitrig video from last weeks NYCBug meeting has been posted. Enjoy. P From mark.saad at ymail.com Fri May 15 14:19:26 2015 From: mark.saad at ymail.com (Mark Saad) Date: Fri, 15 May 2015 14:19:26 -0400 Subject: [talk] DragonflyBSD Site Message-ID: <555638AE.4030608@ymail.com> All Anyone know why the dragonflybsd site is down ? msaad at coffeeport-2:~ % nc -v www.dragonflybsd.org 80 nc: connectx to www.dragonflybsd.org port 80 (tcp) failed: Connection refused nc: connectx to www.dragonflybsd.org port 80 (tcp) failed: No route to host -- Mark Saad | msaad at ymail.com From john.joe.villa at gmail.com Fri May 15 14:23:55 2015 From: john.joe.villa at gmail.com (John Villa) Date: Fri, 15 May 2015 14:23:55 -0400 Subject: [talk] DragonflyBSD Site In-Reply-To: <555638AE.4030608@ymail.com> References: <555638AE.4030608@ymail.com> Message-ID: Admins are playing quake. On Fri, May 15, 2015 at 2:19 PM, Mark Saad wrote: > All > Anyone know why the dragonflybsd site is down ? > > msaad at coffeeport-2:~ % nc -v www.dragonflybsd.org 80 > nc: connectx to www.dragonflybsd.org port 80 (tcp) failed: Connection > refused > nc: connectx to www.dragonflybsd.org port 80 (tcp) failed: No route to > host > > -- > Mark Saad | msaad at ymail.com > _______________________________________________ > talk mailing list > talk at lists.nycbug.org > http://lists.nycbug.org/mailman/listinfo/talk > -------------- next part -------------- An HTML attachment was scrubbed... URL: From lists at eitanadler.com Fri May 15 14:33:56 2015 From: lists at eitanadler.com (Eitan Adler) Date: Fri, 15 May 2015 11:33:56 -0700 Subject: [talk] DragonflyBSD Site In-Reply-To: References: <555638AE.4030608@ymail.com> Message-ID: > On Fri, May 15, 2015 at 2:19 PM, Mark Saad wrote: >> >> All >> Anyone know why the dragonflybsd site is down ? >> >> msaad at coffeeport-2:~ % nc -v www.dragonflybsd.org 80 >> nc: connectx to www.dragonflybsd.org port 80 (tcp) failed: Connection >> refused >> nc: connectx to www.dragonflybsd.org port 80 (tcp) failed: No route to >> host leaf crunched again. I tried to get a core and it was dumping, but then it reset on me Servers dead, but backed up. -- Eitan Adler From justin at shiningsilence.com Fri May 15 14:58:15 2015 From: justin at shiningsilence.com (Justin Sherrill) Date: Fri, 15 May 2015 14:58:15 -0400 Subject: [talk] DragonflyBSD Site In-Reply-To: <555638AE.4030608@ymail.com> References: <555638AE.4030608@ymail.com> Message-ID: http://lists.dragonflybsd.org/pipermail/users/2015-May/207685.html On Fri, May 15, 2015 at 2:19 PM, Mark Saad wrote: > All > Anyone know why the dragonflybsd site is down ? > > msaad at coffeeport-2:~ % nc -v www.dragonflybsd.org 80 > nc: connectx to www.dragonflybsd.org port 80 (tcp) failed: Connection > refused > nc: connectx to www.dragonflybsd.org port 80 (tcp) failed: No route to host > > -- > Mark Saad | msaad at ymail.com > _______________________________________________ > talk mailing list > talk at lists.nycbug.org > http://lists.nycbug.org/mailman/listinfo/talk From twunde at gmail.com Tue May 19 09:52:44 2015 From: twunde at gmail.com (Thomas Wunderlich) Date: Tue, 19 May 2015 09:52:44 -0400 Subject: [talk] IPSec vulnerability? Message-ID: Hey would someone with more familiarity with IPSec comment on https://www.altsci.com/ipsec/ I've been thinking about setting up IPSec recently, but this casts serious doubts on that project. Best, Thomas Wunderlich -------------- next part -------------- An HTML attachment was scrubbed... URL: From christos at zoulas.com Tue May 19 10:15:47 2015 From: christos at zoulas.com (Christos Zoulas) Date: Tue, 19 May 2015 10:15:47 -0400 Subject: [talk] IPSec vulnerability? In-Reply-To: from Thomas Wunderlich (May 19, 9:52am) Message-ID: <20150519141547.0A33017FDA8@rebar.astron.com> On May 19, 9:52am, twunde at gmail.com (Thomas Wunderlich) wrote: -- Subject: [talk] IPSec vulnerability? | Hey would someone with more familiarity with IPSec comment on | https://www.altsci.com/ipsec/ | | I've been thinking about setting up IPSec recently, but this casts serious | doubts on that project. Hi, I just tried all the exploit scripts against one of my servers (NetBSD) and all of them caused error messages but no core dumps. christos From ike at blackskyresearch.net Tue May 19 11:01:25 2015 From: ike at blackskyresearch.net (Isaac (.ike) Levy) Date: Tue, 19 May 2015 15:01:25 +0000 Subject: [talk] IPSec vulnerability? Message-ID: <201505191501.t4JF1PgR029920@rs101.luxsci.com> On May 19, 2015 10:16:53 am EDT, "Christos Zoulas" wrote: > On May 19, 9:52am, twunde at gmail.com (Thomas Wunderlich) wrote: > -- Subject: [talk] IPSec vulnerability? > > | Hey would someone with more familiarity with IPSec comment on > | https://www.altsci.com/ipsec/ > | | I've been thinking about setting up IPSec recently, but this > casts serious > | doubts on that project. > > Hi, > > I just tried all the exploit scripts against one of my servers (NetBSD) > and all of them caused error messages but no core dumps. christos Your initiative here rocks, Christos. -- I'm eager to see more of the projects jump on this- I haven't seen a 0-day that reads quite like this in a decade now... Best, .ike From christos at zoulas.com Tue May 19 11:13:12 2015 From: christos at zoulas.com (Christos Zoulas) Date: Tue, 19 May 2015 11:13:12 -0400 Subject: [talk] IPSec vulnerability? In-Reply-To: <201505191501.t4JF1PgR029920@rs101.luxsci.com> from "Isaac (.ike) Levy" (May 19, 3:01pm) Message-ID: <20150519151312.7CA1617FDA8@rebar.astron.com> On May 19, 3:01pm, ike at blackskyresearch.net ("Isaac (.ike) Levy") wrote: -- Subject: Re: [talk] IPSec vulnerability? | | On May 19, 2015 10:16:53 am EDT, "Christos Zoulas"=20 | wrote: | | > On May 19, 9:52am, twunde at gmail.com (Thomas Wunderlich) wrote: | > -- Subject: [talk] IPSec vulnerability? | > | > | Hey would someone with more familiarity with IPSec comment on | > | https://www.altsci.com/ipsec/ | > | | I've been thinking about setting up IPSec recently, but this=20 | > casts serious | > | doubts on that project. | > | > Hi, | > | > I just tried all the exploit scripts against one of my servers (NetBSD) | > and all of them caused error messages but no core dumps. christos | | Your initiative here rocks, Christos. And it doesn't :-( I kept trying and I was able to reproduce the coredump using the provided server configuration file. I.e. some configurations are vulnerable and others are not. I was not able to make the server coredump using the other scripts. Here's the patch I am planning to commit... christos Index: gssapi.c =================================================================== RCS file: /cvsroot/src/crypto/dist/ipsec-tools/src/racoon/gssapi.c,v retrieving revision 1.4 diff -u -u -r1.4 gssapi.c --- gssapi.c 9 Sep 2006 16:22:09 -0000 1.4 +++ gssapi.c 19 May 2015 15:11:21 -0000 @@ -202,6 +202,10 @@ gssapi_set_state(iph1, gps); + if (iph1->rmconf == NULL) { + plog(LLV_ERROR, LOCATION, NULL, "no remote config\n"); + return -1; + } if (iph1->rmconf->proposal->gssid != NULL) { id_token.length = iph1->rmconf->proposal->gssid->l; id_token.value = iph1->rmconf->proposal->gssid->v; From christos at zoulas.com Tue May 19 11:17:33 2015 From: christos at zoulas.com (Christos Zoulas) Date: Tue, 19 May 2015 11:17:33 -0400 Subject: [talk] IPSec vulnerability? In-Reply-To: <20150519151312.7CA1617FDA8@rebar.astron.com> from Christos Zoulas (May 19, 11:13am) Message-ID: <20150519151733.E508517FDA8@rebar.astron.com> On May 19, 11:13am, christos at zoulas.com (Christos Zoulas) wrote: -- Subject: Re: [talk] IPSec vulnerability? | And it doesn't :-( I kept trying and I was able to reproduce the | coredump using the provided server configuration file. I.e. some | configurations are vulnerable and others are not. I was not able | to make the server coredump using the other scripts. Here's the | patch I am planning to commit... The check should be done earlier to prevent a memory leak: Index: gssapi.c =================================================================== RCS file: /cvsroot/src/crypto/dist/ipsec-tools/src/racoon/gssapi.c,v retrieving revision 1.4 retrieving revision 1.6 diff -u -r1.4 -r1.6 --- gssapi.c 9 Sep 2006 16:22:09 -0000 1.4 +++ gssapi.c 19 May 2015 15:16:00 -0000 1.6 @@ -192,6 +192,11 @@ gss_name_t princ, canon_princ; OM_uint32 maj_stat, min_stat; + if (iph1->rmconf == NULL) { + plog(LLV_ERROR, LOCATION, NULL, "no remote config\n"); + return -1; + } + gps = racoon_calloc(1, sizeof (struct gssapi_ph1_state)); if (gps == NULL) { plog(LLV_ERROR, LOCATION, NULL, "racoon_calloc failed\n"); From ike at blackskyresearch.net Tue May 19 12:43:14 2015 From: ike at blackskyresearch.net (Isaac (.ike) Levy) Date: Tue, 19 May 2015 16:43:14 +0000 Subject: [talk] IPSec vulnerability? Message-ID: <201505191643.t4JGhEl7005053@rs101.luxsci.com> Hi Thomas, On May 19, 2015 09:58:41 am EDT, "Thomas Wunderlich" wrote: > Hey would someone with more familiarity with IPSec comment on > https://www.altsci.com/ipsec/ > > I've been thinking about setting up IPSec recently, but this casts serious > doubts on that project. > > > Best, > Thomas Wunderlich I've sent email to each of the projects security mailing address, Responses so far: NetBSD - (assuming Christos has rang the bell with those patches...) OpenBSD - Theo says "We don't use that code." FreeBSD - Security team investigating, as incoming reference ticket #649 DragonflyBSD - I just now emailed them :) Now back to other work for me... I'd assume the projects would welcome people with time to attempt to replicate the problem and provide specific detail/context. Best, .ike From twunde at gmail.com Tue May 19 13:07:04 2015 From: twunde at gmail.com (Thomas Wunderlich) Date: Tue, 19 May 2015 13:07:04 -0400 Subject: [talk] IPSec vulnerability? In-Reply-To: <201505191643.t4JGhEl7005053@rs101.luxsci.com> References: <201505191643.t4JGhEl7005053@rs101.luxsci.com> Message-ID: Thanks Ike, Christos for the great follow up. I appreciate it (and I'm sure the BSD community as a whole appreciates the security patch) Best, Thomas Wunderlich On Tue, May 19, 2015 at 12:43 PM, Isaac (.ike) Levy < ike at blackskyresearch.net> wrote: > > Hi Thomas, > > On May 19, 2015 09:58:41 am EDT, "Thomas Wunderlich" > wrote: > > Hey would someone with more familiarity with IPSec comment on >> https://www.altsci.com/ipsec/ >> >> I've been thinking about setting up IPSec recently, but this casts serious >> doubts on that project. >> >> >> Best, >> Thomas Wunderlich >> > > I've sent email to each of the projects security mailing address, > > Responses so far: > > NetBSD - (assuming Christos has rang the bell with those patches...) > > OpenBSD - Theo says "We don't use that code." > > FreeBSD - Security team investigating, as incoming reference ticket #649 > > DragonflyBSD - I just now emailed them :) > > Now back to other work for me... > I'd assume the projects would welcome people with time to attempt to > replicate the problem and provide specific detail/context. > > Best, > .ike > > -------------- next part -------------- An HTML attachment was scrubbed... URL: From mark.saad at ymail.com Wed May 20 18:57:22 2015 From: mark.saad at ymail.com (Mark Saad) Date: Wed, 20 May 2015 18:57:22 -0400 Subject: [talk] Bhyve on illumos Message-ID: <05A94CAD-8A4C-4C5C-8C4A-284D8F1F1B2F@ymail.com> All So I stumbled on this gem , it appears that pluribus has ported bhyve to illumos for their fork os illumos nvos. http://www.pluribusnetworks.com/products/open-pluribus/ What other bhyve ports fou know of out there in the wild ? --- Mark Saad | mark.saad at ymail.com From pete at nomadlogic.org Thu May 21 01:31:08 2015 From: pete at nomadlogic.org (Pete Wright) Date: Wed, 20 May 2015 22:31:08 -0700 Subject: [talk] interesting jemalloc use Message-ID: <555D6D9C.3020006@nomadlogic.org> pretty interesting analysis of memory management in low-latency/high-concurrent environments i thought people here may enjoy reading: http://highscalability.com/blog/2015/3/17/in-memory-computing-at-aerospike-scale-when-to-choose-and-ho.html run's on linux only currently, but i'd love to see what performance would look like on a freebsd system. unfortunately it relies on epoll and there is no support for kqueue/event right now. -pete -- Pete Wright pete at nomadlogic.org From ike at blackskyresearch.net Fri May 22 12:10:02 2015 From: ike at blackskyresearch.net (Isaac (.ike) Levy) Date: Fri, 22 May 2015 16:10:02 +0000 Subject: [talk] BEAST ssl attacks still relevant? Message-ID: <201505221610.t4MGA2aU032591@rs103.luxsci.com> Hey All, What do folks think about BEAST these days? Stuff like this makes me wonder how relevant it really is, (and reminds me how the heck it even works eh...), https://community.qualys.com/blogs/securitylabs/2013/09/10/is-beast-still-a-threat -- How seriously are folks still taking server-side BEAST mitigations (and cipher massaging), seeing as it was really a client-side implementation issue? I'd love to hear any/all opinions. Best, .ike From okan at demirmen.com Fri May 22 12:24:28 2015 From: okan at demirmen.com (Okan Demirmen) Date: Fri, 22 May 2015 12:24:28 -0400 Subject: [talk] BEAST ssl attacks still relevant? In-Reply-To: <201505221610.t4MGA2aU032591@rs103.luxsci.com> References: <201505221610.t4MGA2aU032591@rs103.luxsci.com> Message-ID: <20150522162428.GA9084@carbon.khaoz.org> On Fri 2015.05.22 at 16:10 +0000, Isaac (.ike) Levy wrote: > > Hey All, > > What do folks think about BEAST these days? Marking it as a critical violation of policy; which kicks off a series of processes to remediate or kick off the network with a very short TTL. > Stuff like this makes me wonder how relevant it really is, (and reminds me > how the heck it even works eh...), > > https://community.qualys.com/blogs/securitylabs/2013/09/10/is-beast-still-a-threat > > -- > How seriously are folks still taking server-side BEAST mitigations (and > cipher massaging), seeing as it was really a client-side implementation > issue? I'd love to hear any/all opinions. See above. > Best, > .ike > > > _______________________________________________ > talk mailing list > talk at lists.nycbug.org > http://lists.nycbug.org/mailman/listinfo/talk From george at ceetonetechnology.com Tue May 26 17:13:00 2015 From: george at ceetonetechnology.com (George Rosamond) Date: Tue, 26 May 2015 17:13:00 -0400 Subject: [talk] NYC*BUG Upcoming Message-ID: <5564E1DC.2050606@ceetonetechnology.com> For the first time in a long time, we will hold two meetings in a month, plus a social event, with BSDCan in between. Note: if you are going to BSDCan, please bring any HDMI-compatible LCDs for hardware hacking. There will be enough cables, but displays are greatly needed. June 3 - FreeBSD's NUMA, John Baldwin 18:45, Stone Creek Bar & Lounge: 140 E 27th St Abstract Newer x86 systems continue to scale horizontally by adding more cores rather than vertically. This in turn has placed additional strain on other system components such as memory controllers. The solution has been to scale these components horizontally as well. This results in a more complex system requiring additional tuning for optimal performance. The first part of the talk will provide an overview of these extra-CPU scaling changes in x86 systems. We will also talk about the resulting performance impacts and some of the tradeoffs to consider when tuning. The second part of the talk will focus on changes to FreeBSD to support these system changes both in past releases and anticipated work in future releases. Bring your facial tissues. The problems here are similar to those of achieving optimal performance on systems with multiple CPUs, and we all know how well that has worked out. Speaker Bio John first started using FreeBSD in 1996 and has been an active kernel developer since 2000. He has worked for various companies that use FreeBSD with a recent penchant for hacking on bhyve. John lives in New Jersey with his wife and three kids. June 18 - mandoc: from scratch to the standard BSD documentation toolkit in 6 years, Ingo Schwarze ** This meeting will be held at Two Sigma, 101 6th Avenue, 23rd floor RSVPs will be necessary! ** June 19 - social event with Ingo Schwarze 7 PM at Stone Creek. July 1 - Staying in sync with the Precision Time Protocol, Steven Kreuzer Stone Creek August 5 - What's New with OpenBSD, Brian Callahan Stone Creek