Re: kern/134157: [dummynet] dummynet loads cpu for 100% and make a system frozen and unstable [regression]
The following reply was made to PR kern/134157; it has been noted by GNATS. From: Oleg Bulyzhin To: Andrey Golenischev Cc: bug-follo...@freebsd.org Subject: Re: kern/134157: [dummynet] dummynet loads cpu for 100% and make a system frozen and unstable [regression] Date: Tue, 5 May 2009 11:19:18 +0400 On Tue, May 05, 2009 at 12:02:44AM +0300, Andrey Golenischev wrote: > Yes i'm using mpd (tried with mpd4 and mpd5. Tried this on several PC's - > the same problem :( If i have 30-50 online users - it is ok. 100+ - dummynet > 100% loads and server become unstable/freezing. > > net.inet.ip.fw.one_pass: 1 > net.isr.direct: 1 > Could you try with net.isr.direct=0? Let me know if something will change. -- Oleg. === Oleg Bulyzhin -- OBUL-RIPN -- OBUL-RIPE -- o...@rinet.ru === ___ freebsd-net@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-net To unsubscribe, send any mail to "freebsd-net-unsubscr...@freebsd.org"
Re: Request feedback on IPv6 multicast listen on ::
JINMEI Tatuya / 神明達哉 wrote: I believe you can safely remove it. The KAME repository version of that code was already deprecated long time ago. Thanks for clearing this up. I couldn't find anything which referenced the code, and as you pointed out its implementation was not complete, so I will leave it out. regards, BMS ___ freebsd-net@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-net To unsubscribe, send any mail to "freebsd-net-unsubscr...@freebsd.org"
RE: Slow local TCP transfers on -CURRENT
> > Qing (added to CC) is aware of the problem. Not sure how far > off the fix is. > I am resuming the work on it, hoping to get it verified and finalized in a day or so. Sorry about the delay. -- Qing ___ freebsd-net@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-net To unsubscribe, send any mail to "freebsd-net-unsubscr...@freebsd.org"
IPv6 duplicate address detection
I'm working on a piece of software that, among other things, allows an administrator to easily configure IPv6 interfaces on a FreeBSD host. I've run into a problem where whenever I reconfigure an interface with an IPv6 address FreeBSD marks the new address as being a duplicate. The problem is that I'm following RFC 2461 [1] in that I send an unsolicited neighbor advertisement to ff02::1 immediately after configuring the interface. This unsolicited neighbor advertisement is interpreted by FreeBSD as being a response to the neighbor solicitation it sends around the same time as part of duplicate address detection (DAD). This leads FreeBSD to think that the address is already in use, it doesn't notice that it is the one already using it. I want this to mean that there's a bug in the IPv6 implementation in that it shouldn't trigger a DAD failure if it sees an unsolicited NA from itself when sent from the same physical interface. An alternative view on this is that I shouldn't be sending out any packets, especially unsolicited NAs, using or referencing a tentative address. I'm writing to freebsd-net to ask what others think. If people agree that the address shouldn't be marked as a duplicate then I have a python script that reproduces the problem and a patch to nd6_nbr.c to attach to a problem report that I'll file. -Bob [1] RFC 2461 section 7.2.6 paragraph 1: In some cases a node may be able to determine that its link-layer address has changed (e.g., hot-swap of an interface card) and may wish to inform its neighbors of the new link-layer address quickly. ___ freebsd-net@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-net To unsubscribe, send any mail to "freebsd-net-unsubscr...@freebsd.org"
Configure networking outside rc.conf
I was wondering if there was a way to cleanly configure networking without using rc.conf but only ifconfig and other utilities This is what I mean: let's suppose that I have a complex network configuration to launch on my machine, for example: - many physical nics (with different speed, mtu, duplex...) - many aliases on them - many vlans - many carped interfaces - ng_fec - ... What I ask is: can I, set up networking in a way that is equivalent to creating the configuration in /etc/rc.conf and then using "/etc/rc.d/netif restart" ? I know how to set up the example configuration above, what I don't know is if I can do that cleanly, that is, cleaning the state of all interfaces, truncating vlans, etc., and then creating them again with ifconfig, ngctl, etc. Thanks in advance. ___ freebsd-net@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-net To unsubscribe, send any mail to "freebsd-net-unsubscr...@freebsd.org"
Re: Configure networking outside rc.conf
Giulio Ferro wrote: > I was wondering if there was a way to cleanly configure networking > without using rc.conf but only ifconfig and other utilities > > This is what I mean: let's suppose that I have a complex network > configuration to launch on my machine, for example: > - many physical nics (with different speed, mtu, duplex...) > - many aliases on them > - many vlans > - many carped interfaces > - ng_fec > - ... > > What I ask is: can I, set up networking in a way that is equivalent to > creating the configuration in /etc/rc.conf and then using > "/etc/rc.d/netif restart" ? > > I know how to set up the example configuration above, what I > don't know is if I can do that cleanly, that is, cleaning the state of > all interfaces, truncating vlans, etc., and then creating them again > with ifconfig, ngctl, etc. Assuming the NICs are displayed by ifconfig -a or inserted into cloned_interfaces in /etc/rc.conf, you can create the following scripts: /etc/start_if.vlan100 /etc/stop_if.vlan100 Where start_if.vlan100 is sourced by the netif start and stop_if.vlan100 is sourced by the netif stop. For example: | ccowart dev-aux etc $ cat /etc/start_if.vlan81 | ifconfig vlan81 vlan 81 vlandev em0 | ifconfig vlan81 inet 10.81.1.1/16 I don't know that two files per interface is any cleaner than a really long /etc/rc.conf (I usually prefer the latter, but I generally am not dealing with more than 20-40 lines at most). -- Chris Cowart Network Technical Lead Network & Infrastructure Services, RSSP-IT UC Berkeley pgpphEhA06Ws4.pgp Description: PGP signature
Re: kern/134251: skype-2.0.0.72 broke with recent kernel changes in 7.2: all skype-out calls disconnect after 1 minute
Synopsis: skype-2.0.0.72 broke with recent kernel changes in 7.2: all skype-out calls disconnect after 1 minute Responsible-Changed-From-To: freebsd-bugs->freebsd-net Responsible-Changed-By: remko Responsible-Changed-When: Wed May 6 05:04:06 UTC 2009 Responsible-Changed-Why: Seems like something networking http://www.freebsd.org/cgi/query-pr.cgi?pr=134251 ___ freebsd-net@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-net To unsubscribe, send any mail to "freebsd-net-unsubscr...@freebsd.org"
Re: kern/134251: skype-2.0.0.72 broke with recent kernel changes in 7.2: all skype-out calls disconnect after 1 minute
The following reply was made to PR kern/134251; it has been noted by GNATS. From: Chagin Dmitry To: Yuri Cc: freebsd-gnats-sub...@freebsd.org Subject: Re: kern/134251: skype-2.0.0.72 broke with recent kernel changes in 7.2: all skype-out calls disconnect after 1 minute Date: Wed, 6 May 2009 09:00:32 +0400 --W/nzBZO5zC0uMSeA Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Wed, May 06, 2009 at 12:49:19AM +, Yuri wrote: >=20 > >Number: 134251 > >Category: kern > >Synopsis: skype-2.0.0.72 broke with recent kernel changes in 7.2: = all skype-out calls disconnect after 1 minute > >Confidential: no > >Severity: serious > >Priority: high > >Responsible:freebsd-bugs > >State: open > >Quarter: =20 > >Keywords: =20 > >Date-Required: > >Class: sw-bug > >Submitter-Id: current-users > >Arrival-Date: Wed May 06 00:50:02 UTC 2009 > >Closed-Date: > >Last-Modified: > >Originator: Yuri > >Release:7.2-PRERELEASE > >Organization: > n/a > >Environment: > >Description: > Looks like outgoing skype calls are broken by some kernel change between = Feb 25, 2009 and Arp 25, 2009. >=20 > Symptom is that time counter of the call counts seconds with much lower t= han 1Hz frequency and all outgoing calls disconnect after 1 minute. >=20 > On Feb 25 it was 7.1-STABLE. On Apr 25 it's 7.2-PRERELEASE. >=20 > This is a very serious usability issue and should be fixed before 7.2 is = made STABLE. >=20 > It may cause other adverse effects in other Linux apps. >=20 Try kern.hz=3D100 (in /boot/loader.conf) and report any resalts. --=20 Have fun! chd --W/nzBZO5zC0uMSeA Content-Type: application/pgp-signature Content-Disposition: inline -BEGIN PGP SIGNATURE- Version: GnuPG v2.0.10 (FreeBSD) iEYEARECAAYFAkoBGW8ACgkQ0t2Tb3OO/O22UQCfUXT/NePexqXzR2nGKFdV1D6x 5f0AoK+S8qNNjrIDHAyUpp9ehyqdpY57 =iJ/Z -END PGP SIGNATURE- --W/nzBZO5zC0uMSeA-- ___ freebsd-net@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-net To unsubscribe, send any mail to "freebsd-net-unsubscr...@freebsd.org"
Installworld failed with net options are added in kernel config
Hi, With 7.2, I have added the following options in the kernel config file then compiled... MY STUFF # ##options IPDIVERT#divert sockets device pf #PF OpenBSD packet-filter firewall device pflog #logging support interface for PF device pfsync #synchronization interface for PF device carp#Common Address Redundancy Protocol device enc #IPSec interface (needs FAST_IPSEC) options ALTQ options ALTQ_CBQ options ALTQ_RED options ALTQ_RIO options ALTQ_HFSC options ALTQ_CDNR options ALTQ_PRIQ options ALTQ_NOPCC options NETGRAPH#netgraph(4) system options NETGRAPH_ASYNC options NETGRAPH_BPF options NETGRAPH_CISCO options NETGRAPH_ECHO options NETGRAPH_ETHER options NETGRAPH_FRAME_RELAY options NETGRAPH_HOLE options NETGRAPH_IFACE options NETGRAPH_KSOCKET options NETGRAPH_LMI # MPPC compression requires proprietary files (not included) #optionsNETGRAPH_MPPC_COMPRESSION options NETGRAPH_MPPC_ENCRYPTION options NETGRAPH_ONE2MANY options NETGRAPH_PPP options NETGRAPH_PPPOE options NETGRAPH_PPTPGRE options NETGRAPH_RFC1490 options NETGRAPH_SOCKET options NETGRAPH_TEE options NETGRAPH_TTY options NETGRAPH_UI options NETGRAPH_VJC #stuff for squid options MSGMNB=16384 # max # of bytes in a queue options MSGMNI=128 # number of message queue identifiers options MSGSEG=4096 # number of message segments per queue options MSGSSZ=256 # size of a message segment options MSGTQL=16384 # max messages in system options SHMSEG=64 # max shared mem id's per process options SHMMNI=128 # max shared mem id's per system options SHMMAX=8388608 # max shared memory segment size (bytes) options SHMALL=8192 # max amount of shared memory (pages) #stuff for postgresql options SHMMAXPGS=131072 options SEMMNI=64 options SEMMNS=240 options SEMUME=40 options SEMMNU=120 However, when it comes to installworld, it failed with the following errors: cat /usr/src/lib/ncurses/ncurses/../../../contrib/ncurses/man/key_defined.3x > key_defined.3 cat /usr/src/lib/ncurses/ncurses/../../../contrib/ncurses/man/keybound.3x > keybound.3 cat /usr/src/lib/ncurses/ncurses/../../../contrib/ncurses/man/keyok.3x > keyok.3 cat /usr/src/lib/ncurses/ncurses/../../../contrib/ncurses/man/legacy_coding.3x > legacy_coding.3 cat /usr/src/lib/ncurses/ncurses/../../../contrib/ncurses/man/ncurses.3x > ncurses.3 cat /usr/src/lib/ncurses/ncurses/../../../contrib/ncurses/man/resizeterm.3x > resizeterm.3 cat /usr/src/lib/ncurses/ncurses/../../../contrib/ncurses/man/wresize.3x > wresize.3 sh /usr/src/lib/ncurses/ncurses/../../../contrib/ncurses/man/MKterminfo.sh /usr/src/lib/ncurses/ncurses/../../../contrib/ncurses/man/terminfo.head /usr/src/lib/ncurses/ncurses/../../../contrib/ncurses/include/Caps /usr/src/lib/ncurses/ncurses/../../../contrib/ncurses/man/terminfo.tail >terminfo.5 tr: not found /usr/src/lib/ncurses/ncurses/../../../contrib/ncurses/man/MKterminfo.sh: cannot open unsorted61466: No such file or directory *** Error code 2 Stop in /usr/src/lib/ncurses/ncurses. *** Error code 1 Stop in /usr/src/lib/ncurses. *** Error code 1 Stop in /usr/src/lib. *** Error code 1 Stop in /usr/src. *** Error code 1 Stop in /usr/src. *** Error code 1 What is wrong with it? Your suggestion is highly appreciated. Thanks ___ freebsd-net@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-net To unsubscribe, send any mail to "freebsd-net-unsubscr...@freebsd.org"
Re: kern/134251: skype-2.0.0.72 broke with recent kernel changes in 7.2: all skype-out calls disconnect after 1 minute
Synopsis: skype-2.0.0.72 broke with recent kernel changes in 7.2: all skype-out calls disconnect after 1 minute Responsible-Changed-From-To: freebsd-net->dchagin Responsible-Changed-By: dchagin Responsible-Changed-When: Wed May 6 05:51:58 UTC 2009 Responsible-Changed-Why: Grab it, bug in Linux emulation layer. linux_times() should use kern.hz instead of own constant. I will fix this soon. http://www.freebsd.org/cgi/query-pr.cgi?pr=134251 ___ freebsd-net@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-net To unsubscribe, send any mail to "freebsd-net-unsubscr...@freebsd.org"
