Hi Azher- I experience many of the same problems, especially the frame retransmissions, which cause channel hangups from time to time. These channel hangups clear themselves after a few minutes normally but do interfere with calls.
I'm not the expert on Linux internals, so I'm not sure what can be done to improve things. If you have a SCSI disk instead of an ide, you could try it instead, in case the IDE interrupts are blocking the servicing of the TE410P. Of course you can also take steps to minimize the ETH0 interrupts during operation as well. Finally, I believe there are deficiencies in the zaptel driver in that it does not handle overrun and underrun errors correctly. I'm not certain of this, but it appeared that way to a programmer that I had look at the driver. Mark Spencer at Digium has expressed interest in looking at this problem, but has not thus far. You might report the problems to Digium customer service, and tell them that the PRI problems are preventing you from buying additional TE410p boards, etc. Maybe if enough of us report the problems we'll get some attention. Be sure to copy sales (Greg Vance) on everything ([EMAIL PROTECTED]) Sorry I don't have the magic answer. Regards Scott Scott M. Stingel Emerging Voice Technology Inc. Palo Alto, California and London, England Email: [EMAIL PROTECTED] URL: www.evtmedia.com -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Azher Amin Sent: Monday, March 22, 2004 9:03 AM To: [EMAIL PROTECTED] Subject: RE: [Asterisk-Users] PRI issues with TE410P Dear Scott, I am using kernel 2.4.25. RedHat Linux 9.0. libpri-0.5.2, zaptel-0.9.0, and asterisk from CVS of 20th March. About the IRQ misses, may be I am wrong, but from below, CPU0 has lot load from t4xxp, ide0 and eth0. Is it possible that we can keep the ide0 and eth0 to cpu1 ? and just let the cpu0 handle t4xxp ? Any suggestion ?? CPU0 CPU1 0: 2295 8857853 IO-APIC-edge timer 1: 2 0 IO-APIC-edge keyboard 2: 0 0 XT-PIC cascade 14: 98854 0 IO-APIC-edge ide0 15: 5 5 IO-APIC-edge ide1 22: 91359 0 IO-APIC-level eth0 28: 88531746 50053 IO-APIC-level t4xxp NMI: 0 0 LOC: 8860069 8860067 ERR: 0 MIS: 0 Also on load, I am getting lot frame retransmissions. I have attached the messages file, plz take a look at that as well for some suggestions. I don't care about Frame retransmissions as far as my PRI's stays stable and the users don't get dropped :( Regards Azher ------------------------------- http://www.consulttech.com.pk -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Scott Stingel Sent: Sunday, March 21, 2004 9:16 PM To: [EMAIL PROTECTED] Subject: RE: [Asterisk-Users] PRI issues with TE410P Hello Azher- I have a similar setup in hardware, ie: TE410P running on dual-xeon system, however I'm running IVR only. I start getting the I-frame errors above about 80 simultaneous calls. I do not get IRQ misses at all. Also I do not get the startup error messages. The errors I get the most under load are the frame retransmission messages in /var/log/asterisk/messages. Do you get those as well? Since you are getting IRQ misses, you may have some basic problem, ie: something keeping the zaptel driver from getting around to servicing the TE410 interrupts. I think that they have to be serviced without fail every 1 msec, or errors start occurring. Which kernel are you running? What does your Perl script do? Did you try disabling mysql logging to lower the disk load? Maybe the disk driver is interfering with the zaptel driver interrupts. Regards Scott Scott M. Stingel Emerging Voice Technology Inc. Palo Alto, California and London, England Email: scott "at " evtmedia.com URL: www.evtmedia.com >-----Original Message----- >From: [EMAIL PROTECTED] >[mailto:[EMAIL PROTECTED] On Behalf Of Azher Amin >Sent: Sunday, March 21, 2004 3:41 PM >To: [EMAIL PROTECTED] >Subject: [Asterisk-Users] PRI issues with TE410P > >Hi, > >I am having some problems mentioned below, the box is in >production live >environment with traffic around 30 - 100 calls. > >I am running T/E410P in a Dual P4 xeon with HT disabled. I am using >zaptel 0.9.0 and asterisk stable 1 release. There is no gui, >just mysql, >perl (small script) and asterisk. > >System runs very smoothly if the calls are around 40-50 and >comes one by >one , however sometimes at immediate load of around 30 more calls ... I >get the following processes in the ps -ax, and asterisk starts droping >the calls, irq misses rise and console shows lot of pri errors (which >donot occur in a smooth load of around 50 calls). > >Can someone explain why this happens .. however these get cleared once >the channels are handled. > >20992 pts/3 S 0:01 zttool >21412 ? S 0:00 asterisk >21413 ? R 0:00 asterisk >21418 ? S 0:00 asterisk >21419 ? S 0:00 asterisk >21420 ? S 0:00 asterisk >21421 ? S 0:00 asterisk >21422 ? S 0:00 asterisk >21423 ? S 0:00 asterisk >21424 ? S 0:00 asterisk >21425 ? S 0:00 asterisk >21426 ? S 0:00 asterisk >21427 ? S 0:00 asterisk >21429 ? S 0:00 asterisk >21430 ? S 0:00 asterisk >21431 ? S 0:00 asterisk >21432 ? S 0:00 asterisk >21433 ? S 0:00 asterisk >21434 ? S 0:00 asterisk >21435 ? S 0:00 asterisk >21436 ? S 0:00 asterisk >21437 ? S 0:00 asterisk >21438 ? S 0:00 asterisk >21439 ? S 0:00 asterisk >21440 ? S 0:00 asterisk >21441 ? S 0:00 asterisk >21442 ? S 0:00 asterisk >21443 ? S 0:00 asterisk >21444 ? S 0:00 asterisk >21445 ? S 0:00 asterisk >21446 ? S 0:00 asterisk >21447 ? S 0:00 asterisk >21448 ? S 0:00 asterisk >21449 ? S 0:00 asterisk >21451 ? S 0:00 asterisk >21452 ? S 0:00 asterisk >21453 ? S 0:00 asterisk >21454 ? S 0:00 asterisk >21455 ? S 0:00 asterisk >21456 ? S 0:00 asterisk >21457 ? S 0:00 asterisk >21458 ? S 0:00 asterisk >21459 pts/2 R 0:00 ps -ax >21460 ? S 0:00 asterisk > > > >Further I am also getting > >Mar 22 01:33:09 WARNING[114696]: chan_zap.c:5970 zt_pri_error: PRI: !! >Got I-frame while link state 2 >Mar 22 01:33:09 WARNING[114696]: chan_zap.c:5970 zt_pri_error: PRI: !! >Got I-frame while link state 2 >Mar 22 01:33:09 WARNING[114696]: chan_zap.c:5970 zt_pri_error: PRI: !! >Got I-frame while link state 2 >Mar 22 01:33:09 WARNING[114696]: chan_zap.c:5970 zt_pri_error: PRI: !! >Got I-frame while link state 2 >Mar 22 01:33:09 WARNING[114696]: chan_zap.c:5970 zt_pri_error: PRI: !! >Got I-frame while link state 2 >Mar 22 01:33:09 WARNING[114696]: chan_zap.c:5970 zt_pri_error: PRI: !! >Got S-frame while link down >Mar 22 01:33:09 WARNING[114696]: chan_zap.c:5970 zt_pri_error: PRI: !! >Got S-frame while link down > == D-Channel on span 1 up > >and certain IRQ misses like around 270 after an operation of 2-3 hours. > >Further when I load the T/E410p card I get this error ... > >Mar 22 00:33:48 VoiceOne kernel: TE410P: Launching card: 0 >Mar 22 00:33:48 VoiceOne kernel: TE410P: Setting up global serial >parameters >Mar 22 00:33:48 VoiceOne kernel: TE410P: Timing from source 0 >Mar 22 00:33:48 VoiceOne kernel: Found a Wildcard: Wildcard >TE410P-Xilinx >Mar 22 00:33:48 VoiceOne kernel: Registered tone zone 0 >(United States / >North America) >Mar 22 00:33:48 VoiceOne kernel: TE410P: Span 1 configured for >CCS/HDB3/CRC4 >Mar 22 00:33:48 VoiceOne kernel: SPAN 1: Primary Sync Source >Mar 22 00:33:48 VoiceOne kernel: Uhhuh. NMI received for unknown reason >20. >Mar 22 00:33:48 VoiceOne kernel: Dazed and confused, but trying to >continue >Mar 22 00:33:48 VoiceOne kernel: Do you have a strange power >saving mode >enabled? >Mar 22 00:33:48 VoiceOne kernel: TE410P: Span 2 configured for >CCS/HDB3/CRC4 >Mar 22 00:33:48 VoiceOne kernel: TE410P: Span 3 configured for >CCS/HDB3/CRC4 >Mar 22 00:33:48 VoiceOne kernel: TE410P: Span 4 configured for >CCS/HDB3/CRC4 > >I have another card and above also come with that. > >I look forward for resolution on these issues with some suggestions to >improve the stability. Coz otherwise system is not stable to be sold to >client. > >Regards >Azher Amin >------------------------------- >http://www.consulttech.com.pk > > > > >_______________________________________________ >Asterisk-Users mailing list >[EMAIL PROTECTED] >http://lists.digium.com/mailman/listinfo/asterisk-users >To UNSUBSCRIBE or update options visit: > http://lists.digium.com/mailman/listinfo/asterisk-users > > _______________________________________________ Asterisk-Users mailing list [EMAIL PROTECTED] http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users _______________________________________________ Asterisk-Users mailing list [EMAIL PROTECTED] http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
