[Asterisk-Users] RE:PRI issues with TE410P
Tomica Crnek
Tomica.Crnek at span.hr
Mon Mar 22 13:24:01 MST 2004
Hi everyone,
I have the problem not exactly like this one but here is the whole
story...
I have installed everything about 3-4 months ago and it worked fine for
some time. After a while I noticed that calls drop from time to time,
and after few weeks of troubleshooting I asked Digium support to check
my installation. Michael Wood from Digium logged in and checked
everything, he played a little with source and found that the card is
missing interrupts from time to time. After that, together with Mark
Spencer who looked at my site also, he decided that I have to send
TE410P back because it is bad one, and that I will receive a new one.
They were prompt, I have received the new one in few days time, and
installed it. The problem is again the same and I have just reported it
again to Digium support today. Calls drop from time to time, people are
frustrated and therefore I can not put the card in production. The other
problem is that I might have few customers very interested in Asterisk
and I don't know what to say to them!?!?
I hope someone from Digium is reading this mailing list and I hope that
our posts can help them to solve these problems.
Tomica Crnek
---------------------------------------
tel: +385 1 6690200
dir: +385 1 6690250
gsm: +385 98 227655
SPAN d.o.o., Turinina 3, 10000 Zagreb, Croatia
> -----Original Message-----
> From: asterisk-users-admin at lists.digium.com
> [mailto:asterisk-users-admin at lists.digium.com] On Behalf Of Azher Amin
> Sent: Monday, March 22, 2004 7:46 PM
> To: asterisk-users at lists.digium.com
> Subject: RE: [Asterisk-Users] RE:PRI issues with TE410P
>
> Dear Scott,
>
> Thnx for the details. I will talk with Mark on these issues today.
>
> Regards
> Azher
> -------------------------------
> http://www.consulttech.com.pk
>
>
> -----Original Message-----
> From: asterisk-users-admin at lists.digium.com
> [mailto:asterisk-users-admin at lists.digium.com] On Behalf Of
> Scott Stingel
> Sent: Monday, March 22, 2004 11:29 PM
> To: asterisk-users at lists.digium.com
> Subject: [Asterisk-Users] RE:PRI issues with TE410P
>
> 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 (gvance at digium.com)
>
> Sorry I don't have the magic answer.
>
> 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: asterisk-users-admin at lists.digium.com
> [mailto:asterisk-users-admin at lists.digium.com] On Behalf Of Azher Amin
> Sent: Monday, March 22, 2004 9:03 AM
> To: asterisk-users at lists.digium.com
> 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: asterisk-users-admin at lists.digium.com
> [mailto:asterisk-users-admin at lists.digium.com] On Behalf Of
> Scott Stingel
> Sent: Sunday, March 21, 2004 9:16 PM
> To: asterisk-users at lists.digium.com
> 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: asterisk-users-admin at lists.digium.com
> >[mailto:asterisk-users-admin at lists.digium.com] On Behalf Of
> Azher Amin
> >Sent: Sunday, March 21, 2004 3:41 PM
> >To: asterisk-users at lists.digium.com
> >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
> >
> >
> >
> >
> >_______________________________________________
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> >
>
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