Aplicacion Practica NIF B-2 Estado de Flujo de Efectivo (16 de Julio)
Politicas de Privacidad Si no puede ver esta informacisn haga click aqum [IMAGE] POLMTICAS DE CANCELACISN [IMAGE] Corporativo Fiscal Dicada, S.C. posee una rmgida polmtica contra el SPAMming, por lo que respetamos su privacidad. Por favor, si usted no desea recibir mas informacisn y comunicados sobre Corporativo Fiscal Dicada, S.C. o considera que recibis por error este e-mail, le suplicamos haga click aqum, escriba su nombre y lo daremos de baja inmediatamente de nuestra base de datos. EVENTOS COFIDE PROGRAMACION JULIO 2011 JUEVES 07 DE JULIO NUEVA PLATAFORMA ELECTRSNICA DEL SAT DE PAGOS Y DECLARACIONES PARA OBLIGADOS A DICTAMINARSE Duracisn: 5 hrs. De: 09:00 A 14:00 hrs. DESAYUNO DE 08:00 A 09:00 hrs. Expositor: C.P.C. Y E.F. GADIEL ARAGON PERALTA Inversisn: $1,450.00 mas IVA VIERNES 08 DE JULIO REFORMAS DE LA LEY DE AMPARO. AFECTACIONES FISCALES. DESAYUNO INFORMATIVO Duracisn: 3 hrs. De: 09:00 A 12:00 hrs. INCLUYE DESAYUNO Expositor: LIC. RAFAEL RIVERA PRADO Inversisn: $890.00 mas IVA VIERNES 08 DE JULIO REGIMENES ESPECIALES DE LA LEY DEL IMSS (CONSTRUCTORAS) Duracisn: 5 hrs. De: 15:00 A 20:00 hrs. COMIDA DE 14:00 A 15:00 hrs. Expositor: C.P.C. GABRIELA COLOSIA CALDERSN Inversisn: $1,400.00 mas IVA SABADO 09 DE JULIO SIPRED 2010 Y ANEXO 21. Duracisn: 5 Hrs. De: 15:00 A 20:00 hrs. COMIDA DE: 14:00 A 15:00 hrs. Expositor: C.P. ROBERTO GOMEZ LEDEZMA Inversisn: $1,500.00 mas IVA SABADO 09 DE JULIO NUEVA RESOLUCISN MISCELANEA 2011-2012 Duracisn: 6 hrs. De: 09:00 a 15:00 hrs. DESAYUNO DE 08:00 A 09:00 hrs. Expositor: C.P.C Y E.F. LUIS GUILLERMO DELGADO PEDROZA Inversisn: $1,680.00 mas IVA SABADO 09 DE JULIO REGIMENES ESPECIALES DE LA LEY DEL IMSS (OUTSOURCING, ESCUELAS, TRANSPORTISTAS Y CAMPO) Duracisn: 5 hrs. De: 09:00 a 14:00 hrs. DESAYUNO DE 08:00 A 09:00 hrs. Expositor: C.P.C. GABRIELA COLOSIA CALDERON Inversisn: $1,400.00 mas IVA MIERCOLES 13 DE JULIO CURSO TALLER DE HABILIDADES PARA VENTAS EFECTIVAS Duracisn: 8 Hrs. De: 09:00 A 18:00 Hrs. COMIDA DE: 14:00 A 15:00 Hrs. Expositor: LIC. ENRIQUE TOSHIRO VAZQUEZ TSUJI Inversisn: $2,050.00 mas IVA JUEVES 14 DE JULIO ANALISIS INTEGRAL DE ESTIMULOS Y BENEFICIOS FISCALES VIGENTES Duracisn: 5 Hrs. De: 15:00 A 20:00 Hrs. COMIDA DE: 14:00 a 15:00 Hrs Expositor: C.P.C. Y E.F. GADIEL ARAGON PERALTA Inversisn: $1,400.00 mas IVA SABADO 16 DE JULIO APLICACISN PRACTICA NIF B-2 ESTADO DE FLUJO DE EFECTIVO Duracisn: 5 Hrs. De: 09:00 A 14:00 Hrs. DESAYUNO DE:08:00 a 09:00 Hrs Expositor: L.C.P. Y MTRO. JORGE ZZQIGA CARRASCO Inversisn: $1,400.00 mas IVA MIERCOLES 20 DE JULIO NUEVA RESOLUCISN MISCELANEA 2011-2012 Duracisn: 6 hrs. De: 15:00 a 21:00 hrs. COMIDA DE 14:00 A 15:00 hrs. Expositor: C.P.C Y E.F. LUIS GUILLERMO DELGADO PEDROZA Inversisn: $1,680.00 mas IVA JUEVES 21 DE JULIO PAGOS AL EXTRANJERO Y APLICACISN DE TRATADOS INTERNACIONALES EN MATERIA FISCAL Duracisn: 9 Hrs. De: 09:00 A 19:00 Hrs. COMIDA DE: 14:00 a 15:00 Hrs. Expositor: C.P.C. Y E.F. GADIEL ARAGON PERALTA Inversisn: $ 2,970.00 mas IVA VIERNES 22 DE JULIO FINANZAS PARA NO FINANCIEROS Duracisn: 8 Hrs. De: 09:00 A 18:00 Hrs. COMIDA DE: 14:00 a 15:00 Hrs. Expositor: C.P.C. Y MTRO. JORGE ZZQIGA CARRASCO Inversisn: $2,500.00 mas IVA VIERNES 22 DE JULIO NUEVOS SISTEMAS AUTOMATIZADOS DE DEVOLUCIONES Y COMPENSACIONES Duracisn: 5 Hrs. De: 09:00 A 14:00 Hrs. DESAYUNO DE:08:00 A 09:00 Hrs. Expositor: C.P.C. Y E.F. GADIEL ARAGON PERALTA Inversisn: $1,680.00 mas IVA VIERNES 22, SABADO 23, VIERNES 29 Y SABADO 30 DE JULIO DICTAMEN IMSS E INFONAVIT Duracisn: 20 hrs. Viernes 22 de: 15:00 A 20:00 Hrs. Comida: 14:00 A 15:00 Hrs. Sabado 23 de: 09:00 A 14:00 Hrs. Desayuno: 08:00 A 09:00 Hrs. Viernes 29 de: 15:00 A 20:00 Hrs. Comida: 14:00 A 15:00 Hrs. Sabado 30 de: 09:00 A 14:00 Hrs. Desayuno: 08:00 A 09:00 Hrs. Expositor: C.P.C. ARTURO HERNANDEZ LSPEZ Inversisn: $5,600.00 mas IVA MIERCOLES 27 DE JULIO REGIMEN FISCAL DE AUTOTRANSPORTE (INCLUYE RESOLUCISN DE FACILIDADES 2011) Duracisn: 5 hrs. De: 09:00 A 14:00 hrs. DESAYUNO DE:08:00 A 09:00 hrs. Expositor: C.P.C. Y E.F. GADIEL ARAGON PERALTA Inversisn: $1,650.00 mas IVA JUEVES 28 DE JULIO NUEVA RESOLUCISN MISCELANEA 2011-2012 Duracisn: 6 Hrs. De: 09:00 A 15:00 Hrs. DESAYUNO DE:08:00 a 09:00 Hrs. Expositor: C.P.C Y E.F. LUIS GUILLERMO DELGADO PEDROZA
SMP machine, run a program on a single CPU?
Hi, Is it possible to somehow force a program to run on a single CPU in an SMP system? The reason I ask that on some SMP-capable architectures, I'm having some problems with ntpd. On hppa and sgi, the clock won't sync because ntpd sees replies with negative delay: Jul 9 08:58:19 hppa ntpd[21406]: reply from 192.168.4.12: negative delay -0.854615s, next query 3120s (reported as PR6592) If I run the bsd.sp kernel, the negative delays are gone and ntpd syncs without any problem. I was wondering if the problem would occur if I could limit ntpd to a single CPU. Diving into the code is way beyond my skills, so I was hoping that there is a utility like nice to achieve this. Thanks, Maurice
Re: How to switch consoles with CTRL+ALT+Fn on powerbook G4?
On 7/9/11 2:33 AM, Kenneth R Westerback wrote: On Sat, Jul 09, 2011 at 01:56:33AM +0300, Pekka Niiranen wrote: Hi, I managed to install OpenBSD 4.9 on Powerbook G4 17 and remap some keys (/etc/kbdtype contains sv) in X with the following xmodmap settings: keycode 49 = less greater leass greater bar brokenbar keycode 94 = section degree section degree notsing notsign keycode 35 = asciitilde asciicircum keycode 64 = Mode_switch keycode 16 = 7 slash bar keycode 13 = 4 EuroSign keycode 11 = 2 quotedbl at How can I set all those keymappings above for the console too? How about this one. I would need the pipe symbol and at minimum. Am I forced start X in order to get these? How can I switch between consoles; none of the CTRL+ALT+Fn work in X nor in console mode (before startx). I have not found the proper wsconsctl -commands. -pekka- I don't believe macppc supports virtual consoles. Ken Fine. Thank you.
Re: How to switch consoles with CTRL+ALT+Fn on powerbook G4?
On 2011-07-09, Pekka Niiranen pekka.niira...@pp5.inet.fi wrote: On 7/9/11 2:33 AM, Kenneth R Westerback wrote: On Sat, Jul 09, 2011 at 01:56:33AM +0300, Pekka Niiranen wrote: Hi, I managed to install OpenBSD 4.9 on Powerbook G4 17 and remap some keys (/etc/kbdtype contains sv) in X with the following xmodmap settings: keycode 49 = less greater leass greater bar brokenbar keycode 94 = section degree section degree notsing notsign keycode 35 = asciitilde asciicircum keycode 64 = Mode_switch keycode 16 = 7 slash bar keycode 13 = 4 EuroSign keycode 11 = 2 quotedbl at How can I set all those keymappings above for the console too? How about this one. I would need the pipe symbol and at minimum. Am I forced start X in order to get these? see wsconsctl(8).
Re: SMP machine, run a program on a single CPU?
On 07/09/11 03:57, Maurice Janssen wrote: Hi, Is it possible to somehow force a program to run on a single CPU in an SMP system? The reason I ask that on some SMP-capable architectures, I'm having some problems with ntpd. On hppa and sgi, the clock won't sync because ntpd sees replies with negative delay: Jul 9 08:58:19 hppa ntpd[21406]: reply from 192.168.4.12: negative delay -0.854615s, next query 3120s (reported as PR6592) If I run the bsd.sp kernel, the negative delays are gone and ntpd syncs without any problem. I was wondering if the problem would occur if I could limit ntpd to a single CPU. Diving into the code is way beyond my skills, so I was hoping that there is a utility like nice to achieve this. Thanks, Maurice Things aren't that simple. Time is an illusion. Lunch time, doubly so (obligatory Hitchhiker's quote) Time on computers is complicated, doubly so on a multiprocessor system. ntpd isn't your problem, it's time on the SMP system. Fiddling with processor affinity (trying to attach particular tasks to particular CPUs) wouldn't help if you could (and you can't). Is time really drifting (consistently increasing error in one direction) on these systems? Or is it just jittering around proper time? If it is really drifting, you should probably put in a problem report on this. Nick.
Re: How does OpenBSD compare to Ubuntu Server?
On Thu, Jul 7, 2011 at 1:45 PM, Alexander Schrijver alexander.schrij...@gmail.com wrote: For starters, there is 100% consensus among developers that we'll never use newfangled overengineered stuff like System V init. You mean Upstart! or wait You mean systemd! Or the oddness that is daemontools!!
virtual crossover link with vether(4) patch integration?
Hi! Is there any news about this patch integration? http://marc.info/?l=openbsd-techm=129622196824469w=2 And i'm sorry to bother you... thx Csszep
KDE sftp: URLs in OpenBSD 4.9
Anybody can confirm that KDE sftp: URLs still work correctly under OpenBSD 4.9 (amd64)? Since I upgraded from 4.8 to 4.9 all the sftp://; URLs of KDE no longer work for me. I always get the error Error encountered while talking to ssh. I'd like to know if it's a common problem of 4.9 or is only in my installation... Thanks.
Re: KDE sftp: URLs in OpenBSD 4.9
Hi, Same error here... Alvaro On Sat July 9 2011 10:39:13 Federico Giannici wrote: Anybody can confirm that KDE sftp: URLs still work correctly under OpenBSD 4.9 (amd64)? Since I upgraded from 4.8 to 4.9 all the sftp://; URLs of KDE no longer work for me. I always get the error Error encountered while talking to ssh. I'd like to know if it's a common problem of 4.9 or is only in my installation... Thanks.
Re: KDE sftp: URLs in OpenBSD 4.9
Federico Giannici wrote: Anybody can confirm that KDE sftp: URLs still work correctly under OpenBSD 4.9 (amd64)? Since I upgraded from 4.8 to 4.9 all the sftp://; URLs of KDE no longer work for me. I always get the error Error encountered while talking to ssh. I hardly ever use this, but I tried it and I can confirm the error. So it doesn't work for me either on: OpenBSD 4.9 (GENERIC.MP) #819: Wed Mar 2 06:57:49 MST 2011 dera...@amd64.openbsd.org:/usr/src/sys/arch/amd64/compile/GENERIC.MP
Botellitas shampoo conditioner etc impresas a todo color con su logotipo
Un surtido de Botellitas desde 30 cc , 45 cc y 50 cc varios modelos Se las imprimimos a todo color en transparente , y los contenidos que le ofrecemos son: SHAMPOO , SHAMPOO DUO , CONDITIONER Y GEL DE BANO CANTIDADES DE COMPRA SUPER ACCESIBLES . SOLICITE LISTA DE PRECIOS Y CATALOGO . Amenitie Solutions si no desea recibir informacion favor de responder con asunto REMOVER
Re: KDE sftp: URLs in OpenBSD 4.9
On Saturday 09 July 2011 19:39:13 Federico Giannici wrote: Anybody can confirm that KDE sftp: URLs still work correctly under OpenBSD 4.9 (amd64)? Since I upgraded from 4.8 to 4.9 all the sftp://; URLs of KDE no longer work for me. I always get the error Error encountered while talking to ssh. I'd like to know if it's a common problem of 4.9 or is only in my installation... Thanks. Yes they seem to be broken. It is on my list of things to do but I don't have time currently and I have other ports I'm going to sort out first. I have debuged this a little but so far I haven't found out a fix. I attached a log session. You could try fish:// protocol, it might work for you as a workaround. It didn't work for me because it doesn't do everything that sftp:// does (public keys IIRC). You can also use filezilla from ports that supports sftp:// urls. -- Antti Harri kio_sftp: ERROR: KSshProcess::version(): pclose failed. kio_sftp: *** Starting kio_sftp kio_sftp: KSshProcess::KSshProcess(): ssh path [/usr/bin/ssh] kio_sftp: sftpProtocol(): pid = 13452 kio_sftp: setHost(): @kameli.openbsd.fi:0 kio_sftp: closeConnection() kio_sftp: KSshProcess::kill(signal:9): ssh pid is -1 kio_sftp: KSshPRocess::kill(): we are not connected kio_sftp: KSshProcess::kill(): we are not running a ssh process kio_sftp: KSshProcess::kill(): Refusing to kill ssh process kio_sftp: stat(): sftp://kameli.openbsd.fi/ kio_sftp: openConnection(): i...@kameli.openbsd.fi:22 kio_sftp: KSshProcess::setOptions() kio_sftp: arg: -p kio_sftp: arg: 22 kio_sftp: arg: -o kio_sftp: arg: ForwardX11=no kio_sftp: arg: -o kio_sftp: arg: ForwardAgent=no kio_sftp: arg: -e kio_sftp: arg: none kio_sftp: arg: -l kio_sftp: arg: iku kio_sftp: arg: -v kio_sftp: arg: kameli.openbsd.fi kio_sftp: arg: -s kio_sftp: arg: sftp kio_sftp: KSshProcess::version(): got version string [OpenSSH_5.8, OpenSSL 1.0.0a 1 Jun 2010 kio_sftp: ] kio_sftp: KSshPRocess::version(): version number = 0 kio_sftp: KSshProcess::connect(): Connect state STATE_START kio_sftp: MyPtyProcess::exec(): /usr/bin/ssh kio_sftp: KSshPRocess::connect(): ssh pid = 6060 kio_sftp: KSshProcess::connect(): Connect state STATE_WAIT_PROMPT kio_sftp: -p kio_sftp: 22 kio_sftp: -o kio_sftp: ForwardX11=no kio_sftp: -o kio_sftp: ForwardAgent=no kio_sftp: -e kio_sftp: none kio_sftp: -l kio_sftp: iku kio_sftp: -v kio_sftp: kameli.openbsd.fi kio_sftp: -s kio_sftp: sftp kio_sftp: KSshProcess::getLine(): ssh: kio_sftp: KSshProcess::connect(): Got null line in STATE_WAIT_PROMPT. kio_sftp: KSshProcess::connect(): Connect state STATE_FATAL kio_sftp: KSshProcess::kill(signal:9): ssh pid is 6060 kio_sftp: KSshPRocess::kill(): we are not connected kio_sftp: KSshProcess::kill(): we are running a ssh process kio_sftp: openConnection(): Got 2 from KSshProcess::connect() kio_sftp: closeConnection() kio_sftp: KSshProcess::kill(signal:9): ssh pid is 6060 kio_sftp: KSshPRocess::kill(): we are not connected kio_sftp: KSshProcess::kill(): we are not running a ssh process kio_sftp: KSshProcess::kill(): Refusing to kill ssh process kio_sftp: closeConnection() kio_sftp: KSshProcess::kill(signal:9): ssh pid is 6060 kio_sftp: KSshPRocess::kill(): we are not connected kio_sftp: KSshProcess::kill(): we are not running a ssh process kio_sftp: KSshProcess::kill(): Refusing to kill ssh process kio_sftp: slave_status(): connected to kameli.openbsd.fi? false kio_sftp: *** kio_sftp Done kio_sftp: ~sftpProtocol(): pid = 13452 kio_sftp: closeConnection() kio_sftp: KSshProcess::kill(signal:9): ssh pid is 6060 kio_sftp: KSshPRocess::kill(): we are not connected kio_sftp: KSshProcess::kill(): we are not running a ssh process kio_sftp: KSshProcess::kill(): Refusing to kill ssh process kio_sftp: KSshProcess::kill(signal:9): ssh pid is 6060 kio_sftp: KSshPRocess::kill(): we are not connected kio_sftp: KSshProcess::kill(): we are not running a ssh process kio_sftp: KSshProcess::kill(): Refusing to kill ssh process kio_sftp: *** Starting kio_sftp kio_sftp: KSshProcess::KSshProcess(): ssh path [/usr/bin/ssh] kio_sftp: sftpProtocol(): pid = 28664 kio_sftp: setHost(): @kameli.openbsd.fi:0 kio_sftp: closeConnection() kio_sftp: KSshProcess::kill(signal:9): ssh pid is -1 kio_sftp: KSshPRocess::kill(): we are not connected kio_sftp: KSshProcess::kill(): we are not running a ssh process kio_sftp: KSshProcess::kill(): Refusing to kill ssh process kio_sftp: stat(): sftp://kameli.openbsd.fi/ kio_sftp: openConnection(): i...@kameli.openbsd.fi:22 kio_sftp: KSshProcess::setOptions() kio_sftp: arg: -p kio_sftp: arg: 22 kio_sftp: arg: -o kio_sftp: arg: ForwardX11=no kio_sftp: arg: -o kio_sftp: arg: ForwardAgent=no kio_sftp: arg: -e kio_sftp: arg: none kio_sftp: arg: -l kio_sftp: arg: iku kio_sftp: arg: -v kio_sftp: arg: kameli.openbsd.fi kio_sftp: arg: -s kio_sftp: arg: sftp kio_sftp: KSshProcess::version(): got version string [OpenSSH_5.8, OpenSSL 1.0.0a 1 Jun 2010 kio_sftp: ] kio_sftp: KSshPRocess::version(): version number = 0 kio_sftp:
Re: How to switch consoles with CTRL+ALT+Fn on powerbook G4?
On 7/9/11 12:46 PM, Stuart Henderson wrote: On 2011-07-09, Pekka Niiranenpekka.niira...@pp5.inet.fi wrote: On 7/9/11 2:33 AM, Kenneth R Westerback wrote: On Sat, Jul 09, 2011 at 01:56:33AM +0300, Pekka Niiranen wrote: Hi, I managed to install OpenBSD 4.9 on Powerbook G4 17 and remap some keys (/etc/kbdtype contains sv) in X with the following xmodmap settings: keycode 49 = less greater leass greater bar brokenbar keycode 94 = section degree section degree notsing notsign keycode 35 = asciitilde asciicircum keycode 64 = Mode_switch keycode 16 = 7 slash bar keycode 13 = 4 EuroSign keycode 11 = 2 quotedbl at How can I set all those keymappings above for the console too? How about this one. I would need the pipe symbol and at minimum. Am I forced start X in order to get these? see wsconsctl(8). That does not help, because I cannot findout what keycode ALT -button emits. I would need program similar to xev for the console (showkey in linux). When I press ALT+Y I do get message yank something first, for what that is worth.
Re: How does OpenBSD compare to Ubuntu Server?
On Jul 9, 2011, at 11:34 AM, Nico Kadel-Garcia wrote: On Thu, Jul 7, 2011 at 1:45 PM, Alexander Schrijver alexander.schrij...@gmail.com wrote: For starters, there is 100% consensus among developers that we'll never use newfangled overengineered stuff like System V init. You mean Upstart! or wait You mean systemd! Or the oddness that is daemontools!! Hey, wait for me -- launchd from the Mac! :-) [demime 1.01d removed an attachment of type application/pkcs7-signature which had a name of smime.p7s]
Re: isakmpd and INVALID_COOKIE
Hmm.. sounds like this might be a candidate for -STABLE? --Paul On Jul 8, 2011, at 10:09 AM, Stuart Henderson wrote: On 2011-07-08, Tony Sarendal t...@polarcap.org wrote: If you're running isakmpd from 4.8 or 4.9 with IKE you want to pull up src/sbin/isakmpd/dh.c to r1.14 otherwise you will certainly see problems from time to time. Is this a cosmetic thing or does it affect connectivity ? dh.c r1.14 affects stability. Between 4.7 and 4.8 isakmpd switched from internal to openssl DH; an openssl function wasn't padding with leading 0's where it was expected that they would, so there was junk at the end of the key, causing key mismatches. [demime 1.01d removed an attachment of type application/pkcs7-signature which had a name of smime.p7s]
Re: SMP machine, run a program on a single CPU?
On Sat, Jul 09, 2011 at 07:52:58AM -0400, Nick Holland wrote: On 07/09/11 03:57, Maurice Janssen wrote: Hi, Is it possible to somehow force a program to run on a single CPU in an SMP system? The reason I ask that on some SMP-capable architectures, I'm having some problems with ntpd. On hppa and sgi, the clock won't sync because ntpd sees replies with negative delay: Jul 9 08:58:19 hppa ntpd[21406]: reply from 192.168.4.12: negative delay -0.854615s, next query 3120s (reported as PR6592) If I run the bsd.sp kernel, the negative delays are gone and ntpd syncs without any problem. I was wondering if the problem would occur if I could limit ntpd to a single CPU. Diving into the code is way beyond my skills, so I was hoping that there is a utility like nice to achieve this. Thanks, Maurice Things aren't that simple. Time is an illusion. Lunch time, doubly so (obligatory Hitchhiker's quote) Time on computers is complicated, doubly so on a multiprocessor system. ntpd isn't your problem, it's time on the SMP system. Fiddling with processor affinity (trying to attach particular tasks to particular CPUs) wouldn't help if you could (and you can't). OK, thanks for making that clear. Is time really drifting (consistently increasing error in one direction) on these systems? Or is it just jittering around proper time? The hppa was about 10 seconds behind proper time since boot (the machine is not powered on anymore). The delay was quite stable. The sgi was close to proper time (within one second) and finally synced the clocked after about 4 hours. But the 'negative delay' lines keep appearing in /var/log/daemon: Jul 9 07:10:40 sgi ntpd[25403]: ntp engine ready Jul 9 07:11:47 sgi ntpd[7566]: set local clock to Sat Jul 9 07:11:47 CEST 2011 (offset 66.702436s) Jul 9 07:11:53 sgi ntpd[25403]: reply from 192.168.4.10: negative delay -0.422241s, next query 3298s Jul 9 07:11:55 sgi ntpd[25403]: reply from 192.168.4.12: negative delay -0.420484s, next query 3071s Jul 9 08:03:06 sgi ntpd[25403]: 0 out of 2 peers valid Jul 9 08:03:06 sgi ntpd[25403]: bad peer ntp.z74.net (192.168.4.10) Jul 9 08:03:06 sgi ntpd[25403]: bad peer ntp2.z74.net (192.168.4.12) Jul 9 08:03:06 sgi ntpd[25403]: reply from 192.168.4.12: negative delay -0.419880s, next query 3052s Jul 9 08:07:02 sgi ntpd[25403]: reply from 192.168.4.10: negative delay -0.422318s, next query 3238s Jul 9 08:53:58 sgi ntpd[25403]: reply from 192.168.4.12: negative delay -0.419919s, next query 3083s Jul 9 09:00:59 sgi ntpd[25403]: peer 192.168.4.10 now valid Jul 9 09:01:22 sgi ntpd[25403]: reply from 192.168.4.10: negative delay -0.422266s, next query 3053s Jul 9 09:45:21 sgi ntpd[25403]: reply from 192.168.4.12: negative delay -0.420109s, next query 3036s Jul 9 09:52:46 sgi ntpd[27014]: adjusting local clock by -0.370742s Jul 9 09:53:17 sgi ntpd[25403]: reply from 192.168.4.10: negative delay -0.415123s, next query 3068s Jul 9 10:36:11 sgi ntpd[25403]: peer 192.168.4.12 now valid Jul 9 10:38:47 sgi ntpd[25403]: reply from 192.168.4.12: negative delay -0.420481s, next query 3214s Jul 9 10:44:24 sgi ntpd[25403]: reply from 192.168.4.10: negative delay -0.422004s, next query 3188s Jul 9 11:32:21 sgi ntpd[25403]: reply from 192.168.4.12: negative delay -0.420039s, next query 3204s Jul 9 11:38:39 sgi ntpd[27014]: adjusting local clock by 0.099333s Jul 9 11:38:38 sgi ntpd[25403]: clock is now synced Jul 9 11:39:09 sgi ntpd[25403]: reply from 192.168.4.10: negative delay -0.422172s, next query 3257s Jul 9 12:25:45 sgi ntpd[25403]: reply from 192.168.4.12: negative delay -0.419923s, next query 3077s and this keeps on going. If it is really drifting, you should probably put in a problem report on this. I got an email from Joel Sing, he's going to take a closer look. Thanks, Maurice
Re: SMP machine, run a program on a single CPU?
On Sat, Jul 9, 2011 at 9:11 PM, Maurice Janssen maur...@z74.net wrote: On Sat, Jul 09, 2011 at 07:52:58AM -0400, Nick Holland wrote: On 07/09/11 03:57, Maurice Janssen wrote: Hi, Is it possible to somehow force a program to run on a single CPU in an SMP system? The reason I ask that on some SMP-capable architectures, I'm having some problems with ntpd. On hppa and sgi, the clock won't sync because ntpd sees replies with negative delay: Jul 9 08:58:19 hppa ntpd[21406]: reply from 192.168.4.12: negative delay -0.854615s, next query 3120s (reported as PR6592) If I run the bsd.sp kernel, the negative delays are gone and ntpd syncs without any problem. I was wondering if the problem would occur if I could limit ntpd to a single CPU. Diving into the code is way beyond my skills, so I was hoping that there is a utility like nice to achieve this. Thanks, Maurice Things aren't that simple. Time is an illusion. Lunch time, doubly so (obligatory Hitchhiker's quote) Time on computers is complicated, doubly so on a multiprocessor system. ntpd isn't your problem, it's time on the SMP system. Fiddling with processor affinity (trying to attach particular tasks to particular CPUs) wouldn't help if you could (and you can't). OK, thanks for making that clear. Is time really drifting (consistently increasing error in one direction) on these systems? Or is it just jittering around proper time? The hppa was about 10 seconds behind proper time since boot (the machine is not powered on anymore). The delay was quite stable. The sgi was close to proper time (within one second) and finally synced the clocked after about 4 hours. But the 'negative delay' lines keep appearing in /var/log/daemon: Jul 9 07:10:40 sgi ntpd[25403]: ntp engine ready Jul 9 07:11:47 sgi ntpd[7566]: set local clock to Sat Jul 9 07:11:47 CEST 2011 (offset 66.702436s) Jul 9 07:11:53 sgi ntpd[25403]: reply from 192.168.4.10: negative delay -0.422241s, next query 3298s This sounds like the timekeeping code isn't synchronizing between cpus. I don't know how those architectures are getting their time, but it sounds like different cpus have slightly out of sync counters or even frequencies. This is the reason why we don't use instruction counters to measure time on i386 and amd64. //art
