[Asterisk-Users] Zaptel/PRI problem

willy at yponeinc.com willy at yponeinc.com
Sat Apr 10 17:57:08 MST 2004


List People ... I am getting really frustrated with this
digium t1 interface.
And I spoke (wrote) too soon!
Major crash this afternoon.  No sound at all.
Did a (remote) system reboot, and no change in status.  The
CLI indicates a call getting answered and an announcement
being played, but only a faint hiss is heard, and a faint
'click' when asterisk hangs up.
This will require me to actually drive to the place where
the [*] is located and do a full powerdown reboot. 
Disheartening!!!
For the purpose of record, here's the notices/warnings seen
when the T1 interface died (so to speak)
Apr 10 13:31:11 WARNING[-1284645968]: PRI: Short write:
-1/15 (Unknown error 500)
Apr 10 13:31:11 WARNING[-1284645968]: Detected alarm on
channel 2: Red Alarm
Apr 10 13:31:11 WARNING[-1274156112]: PRI: Short write:
-1/15 (Unknown error 500)
Apr 10 13:31:11 WARNING[-1274156112]: Detected alarm on
channel 3: Red Alarm
Apr 10 13:31:11 WARNING[-1295135824]: PRI: Short write:
-1/15 (Unknown error 500)
Apr 10 13:31:11 WARNING[-1295135824]: Detected alarm on
channel 4: Red Alarm
Apr 10 13:31:11 WARNING[-1295135824]: PRI: Short write:
-1/15 (Unknown error 500)
Apr 10 13:31:11 WARNING[-1221706832]: Detected alarm on
channel 6: Red Alarm
Apr 10 13:31:11 WARNING[-1221706832]: Detected alarm on
channel 7: Red Alarm
etc. etc.
The alarms then cleared, and another event occured sometime
later:
Apr 10 16:14:42 WARNING[-1211216976]: PRI: Read on 35
failed: Unknown error 500
Apr 10 16:14:42 NOTICE[-1211216976]: PRI got event: 8 on
span 1
And since then: Bingo! No more voice (sound)
Apr 10 16:14:42 WARNING[-1211216976]: PRI: Read on 35
failed: Unknown error 500
Apr 10 16:14:42 NOTICE[-1211216976]: PRI got event: 8 on
span 1



----- Original Message Follows -----
> 
> Tan,
> My warnings & notices have stopped completely.
> I was getting them once every few hours though, instead of
> once every few minutes.
> However, in the process of trying to resolve issues, we
> also rolled back the codebase to 3/5/2004.  This *maybe* a
> red herring, but I see several other people on the list
> experiencing problems which went away after a 3/5/2004
> roll-back.  Now, ours did not (initially) go away.  But
> the rollback + interrupts seems to at-least stop the
> spurious PRI errors.
> WW
> ----- Original Message Follows -----
> > Here is what we get:
> > 
> > Apr 10 18:10:34 WARNING[-1179604048]: chan_zap.c:6026
> > zt_pri_error: PRI: Read on 24 failed: Unknown error 500
> > Apr 10 18:10:34 NOTICE[-1179604048]: chan_zap.c:6740
> > pri_dchannel:  PRI got event: 8 on span 1
> > 
> > We were getting around 5 messages per second. I turned
> > off the usb interface in the bios and now the messages
> > have greatly reduced in number e.g. a few messages each
> > minute. 
> > We only see the errors on the console. What frequency of
> > messages were you getting? Sound dropping in voice calls
> > may be related to something else.
> > 
> > Tan
> > 
> > 
> > 
> > 
> > -----Original Message-----
> > From: asterisk-users-admin at lists.digium.com
> > [mailto:asterisk-users-admin at lists.digium.com] On Behalf
> > Of willy at yponeinc.com
> > Sent: 10 April 2004 17:51
> > To: asterisk-users at lists.digium.com
> > Subject: RE: [Asterisk-Users] Zaptel/PRI problem
> > 
> > 
> > Tan,
> > Scary ...
> > What we used to see was quite few (and sporadic) notices
> > and warnings in the /var/log/messages file reporting PRI
> > trouble.  Especially event 6 and event 8 if I recall. 
> > These notices and warnings have disappeared since we
> > resolved the interrupt issue.  Because the
> > implementation is an office PBX, and the office had
> > light call volume Friday afternoon and closed for the
> > weekend, I do NOT know if users might still experience
> > sound dropping on voice calls.   My question to you:
> > when you state 'similar problems', you mean dropping
> > voice (sound), or having spurious PRI events, or both.
> > Cheers,
> > WW
> > 
> > ----- Original Message Follows -----
> > > Hi,
> > > 
> > > Glad that your problem was solved, but we are still
> > > exerpiencing a  similar problem but our interrupts
> > > show: 
> > >   0:     162034          XT-PIC  timer
> > >   1:        234          XT-PIC  keyboard
> > >   2:          0          XT-PIC  cascade
> > >   5:        782          XT-PIC  eth1
> > >   7:       7448          XT-PIC  eth0
> > >   8:          1          XT-PIC  rtc
> > >  10:          0          XT-PIC  usb-ohci
> > >  11:      19330          XT-PIC  ide0, ide1
> > >  12:        468          XT-PIC  PS/2 Mouse
> > >  14:          0          XT-PIC  ide2
> > >  15:     967550          XT-PIC  t1xxp
> > > NMI:          1
> > > ERR:          0
> > > 
> > > Any ideas?
> > > Tan
> > > 
> > > 
> > > -----Original Message-----
> > > From: asterisk-users-admin at lists.digium.com
> > > [mailto:asterisk-users-admin at lists.digium.com] On
> > > Behalf Of willy at yponeinc.com
> > > Sent: 10 April 2004 17:23
> > > To: asterisk-users at lists.digium.com
> > > Subject: Re: [Asterisk-Users] Zaptel/PRI problem
> > > 
> > > 
> > > To the list ...
> > > The problem appears to be fixed.  Short answer:
> > > interrupts. When looking at cat /proc/interrupts it
> > > was seen that the wct1xxp card was sharing interrupts
> > > with a.o. the eth0 main ethernet driver. The solution
> > > we simple: move the T1 card to another PCI slot. Upon
> > > checking cat /proc/interrupts again, the card now had
> > > its very own  interrupt.  So far I have NOT seen any
> > > PRI notices or warnings.  User  experience has been
> > limited due to a light workload on Friday, and, of
> > 
> > > course, this being Easter weekend. Since this is such
> > > a recurring  problem (from witnessing list postings),
> > > perhaps digium should have a notice or something about
> > > this when they ship the cards out.  Especially a
> > > relative newbie (first T1 on an asterisk box) like me
> > > is likely to even look at this interrupts situation. 
> > > Especially when there are other issues (zaptel.conf
> > > and zapata.conf) to get a functional system.  
> > > Maybe this deserves a wiki input.  In any case,
> > > Happy Easter
> > > WW
> > >  
> > > ----- Original Message Follows -----
> > > > Dimitri,
> > > > I just got off the phone with digium. Here's what I
> > > > (from my notes) the event codes mean
> > > > Event 4: Alarm detected
> > > > Event 5: Alarm cleared
> > > > Event 6: Abort HDLC Frams
> > > > Event 8: Bad HCS
> > > > The 6 & 8 which occur sporadically are possibly
> > > > causing the observed symptoms.
> > > > Now ... what causes 6 & 8 is the question.
> > > > Interrupt conflicts was one suggested possibility.
> > > > Another possibility is 'stuff' from the Telco which
> > > > is not understood / mis-understood by the driver.
> > > > I'll keep the list posted.
> > > > Willy
> > > > 
> > > > ----- Original Message Follows -----
> > > > > Dear Willy
> > > > >     i notice the same problem with my E100P using
> > > > > the latest cvs   zaptel driver i  have try every
> > type of config in /etc/zaptel.conf
> > 
> > > > > to check if i have missed something in timing conf
> > but nothing...
> > 
> > > > > Digium help... :-) thanks in advance Dimitri
> > > > > 
> > > > > On Thursday 08 April 2004 23:07,
> > > > > > willy at yponeinc.com wrote: Chris,
> > > > > > Thank you for posting this.  Since it concerns
> > > > > > my 'production'   system, let me comment.  After
> > > > > > 'downshifting' to a previous   release (for no
> > good reason other than desperation and teh fact
> > 
> > > > > > that an earlier list entry had commented that it
> > > > > > cleared up the problems) I am sad to report that
> > > > > > the system failed again. Miscellaneous
> > > > > > throughout the day: Apr  8 13:41:27
> > > > > > WARNING[-1210639440]: PRI: Read on 32 failed:
> > > > > > Unknown error 500 Apr  8 13:41:27
> > > > > > NOTICE[-1210639440]: PRI got event: 8 on span 1
> > > > > > Apr  8 13:41:27 WARNING[-1210639440]: PRI: Read
> > > > > > on 32 failed: Unknown error 500 Apr  8 13:41:27
> > > > > > NOTICE[-1210639440]: PRI got event: 6 on span 1
> > > > > > Apr  8 13:42:07 WARNING[-1210639440]: PRI: Read
> > > > > > on 32 failed: Unknown error 500
> > > > > > Apr  8 13:42:07 NOTICE[-1210639440]: PRI got
> > > > > > event: 8 on span 1
> > > > > > Apr  8 16:44:01 WARNING[-1210631248]: PRI: Read
> > > > > > on 34 failed: Unknown error 500
> > > > > > Apr  8 16:44:01 NOTICE[-1210631248]: PRI got
> > > > > > event: 6 on span 1
> > > > > > Apr  8 16:44:01 WARNING[-1210631248]: PRI: Read
> > > > > > on 34 failed: Unknown error 500
> > > > > > Apr  8 16:44:01 NOTICE[-1210631248]: PRI got
> > > > > > event: 6 on span 1
> > > > > >
> > > > > > Then this -- possibly not related ?
> > > > > >
> > > > > > Apr  8 16:51:45 WARNING[-1137157200]: Maximum
> > > > > > retries exceeded on  call
> > > > > > a642d825c89f2f78 at 192.168.5.188 for  seqno 102
> > > (Request) Apr  8 16:51:45 WARNING[-1137157200]:
> > > > > > Maximum retries exceeded on call
> > > > > > a642d825c89f2f78 at 192.168.5.188 for seqno 103
> > > > > > (Request) Apr  8 16:51:45 WARNING[-1137157200]:
> > > > > > Maximum retries exceeded on call
> > > > > > a642d825c89f2f78 at 192.168.5.188  for seqno 104
> > > > > > (Request) Apr  8 16:51:46 WARNING[-1137157200]:
> > > > > > Maximum retries exceeded on call
> > > > > > a642d825c89f2f78 at 192.168.5.188  for seqno 105
> > > > > (Request) >
> > > > > > And finally, I'll show you a RESTART log
> > > > > >
> > > > > > Apr  8 17:41:32 WARNING[-1085030272]: Ignoring
> > > > > > port for now Apr  8 17:41:33
> > > > > > WARNING[-1085030272]: XXX I don't work  right
> > > > > > with non-full duplex sound cards XXX Apr  8
> > > > > > 17:41:33  WARNING[-1189983312]: Read error on
> > > > > > sound device: Resource  temporarily unavailable
> > > > > > Apr  8 17:41:33 ERROR[-1085030272]:  Unable to
> > > > > > load config iax1.conf Apr  8 17:41:38
> > > > > > NOTICE[-1221452880]: Alarm cleared on channel 1
> > > > > > Apr  8 17:41:38 NOTICE[-1221452880]: Alarm
> > > > > > cleared on channel 2 Apr  8 17:41:38
> > > > > > NOTICE[-1221452880]: Alarm cleared on channel 3
> > > > > > Apr  8 17:41:38 NOTICE[-1221452880]: Alarm
> > > > > > cleared on channel 4 Apr  8 17:41:38
> > > > > > NOTICE[-1221452880]: Alarm cleared on channel 5
> > > > > > Apr  8 17:41:38 NOTICE[-1221452880]: Alarm
> > > > > > cleared on channel 6
> > > > > > Apr  8 17:41:38 NOTICE[-1221452880]: Alarm
> > > > > > cleared on channel 7
> > > > > > Apr  8 17:41:38 NOTICE[-1221452880]: Alarm
> > > > > > cleared on channel 8
> > > > > > Apr  8 17:41:38 NOTICE[-1221452880]: Alarm
> > > > > > cleared on channel 9
> > > > > > Apr  8 17:41:38 NOTICE[-1221452880]: Alarm
> > > > > > cleared on channel 10
> > > > > > Apr  8 17:41:38 NOTICE[-1221452880]: Alarm
> > > > > > cleared on channel 11
> > > > > > Apr  8 17:41:38 WARNING[-1210963024]: PRI: Read
> > > > > > on 32 failed: Unknown error 500
> > > > > > Apr  8 17:41:38 NOTICE[-1210963024]: PRI got
> > > > > > event: 5 on span 1
> > > > > > Apr  8 17:49:10 WARNING[-1221452880]: Detected
> > > > > > alarm on channel 1: Red Alarm
> > > > > > Apr  8 17:49:10 WARNING[-1221452880]: Detected
> > > > > > alarm on channel 2: Red Alarm
> > > > > > Apr  8 17:49:10 WARNING[-1221452880]: Detected
> > > > > > alarm on channel 3: Red Alarm
> > > > > > Apr  8 17:49:10 WARNING[-1221452880]: Detected
> > > > > > alarm on channel 4: Red Alarm
> > > > > > Apr  8 17:49:10 WARNING[-1221452880]: Detected
> > > > > > alarm on channel 5: Red Alarm
> > > > > > Apr  8 17:49:10 WARNING[-1221452880]: Detected
> > > > > > alarm on channel 6: Red Alarm
> > > > > > Apr  8 17:49:10 WARNING[-1221452880]: Detected
> > > > > > alarm on channel 7: Red Alarm
> > > > > > Apr  8 17:49:10 WARNING[-1221452880]: Detected
> > > > > > alarm on channel 8: Red Alarm
> > > > > > Apr  8 17:49:10 WARNING[-1221452880]: Detected
> > > > > > alarm on channel 9: Red Alarm
> > > > > > Apr  8 17:49:10 WARNING[-1221452880]: Detected
> > > > > > alarm on channel 10: Red Alarm
> > > > > > Apr  8 17:49:10 WARNING[-1221452880]: Detected
> > > > > > alarm on channel 11: Red Alarm
> > > > > > Apr  8 17:49:10 WARNING[-1210963024]: PRI: Read
> > > > > > on 32 failed: Unknown error 500
> > > > > > Apr  8 17:49:10 NOTICE[-1210963024]: PRI got
> > > > > > event: 4 on span 1
> > > > > > Apr  8 17:49:18 NOTICE[-1221452880]: Alarm
> > > > > > cleared on channel 1
> > > > > > Apr  8 17:49:18 NOTICE[-1221452880]: Alarm
> > > > > > cleared on channel 2
> > > > > > Apr  8 17:49:18 NOTICE[-1221452880]: Alarm
> > > > > > cleared on channel 3
> > > > > > Apr  8 17:49:18 NOTICE[-1221452880]: Alarm
> > > > > > cleared on channel 4
> > > > > > Apr  8 17:49:18 NOTICE[-1221452880]: Alarm
> > > > > > cleared on channel 5
> > > > > > Apr  8 17:49:18 NOTICE[-1221452880]: Alarm
> > > > > > cleared on channel 6
> > > > > > Apr  8 17:49:18 NOTICE[-1221452880]: Alarm
> > > > > > cleared on channel 7
> > > > > > Apr  8 17:49:18 NOTICE[-1221452880]: Alarm
> > > > > > cleared on channel 8
> > > > > > Apr  8 17:49:18 NOTICE[-1221452880]: Alarm
> > > > > > cleared on channel 9
> > > > > > Apr  8 17:49:18 NOTICE[-1221452880]: Alarm
> > > > > > cleared on channel 10
> > > > > > Apr  8 17:49:18 NOTICE[-1221452880]: Alarm
> > > > > > cleared on channel 11
> > > > > > Apr  8 17:49:18 WARNING[-1210963024]: PRI: Read
> > > > > > on 32 failed: Unknown error 500
> > > > > > Apr  8 17:49:18 NOTICE[-1210963024]: PRI got
> > > > > > event: 5 on span 1
> > > > > >
> > > > > > Can someone PLEASE interpret these messages?
> > > > > > BTW: Calls & messages to digium support have
> > > > > gone unanswered >
> > > > > > :(
> > > > > >
> > > > > > TIA
> > > > > > Willy
> > > > > >
> > > > > >
> > > > > > ----- Original Message Follows -----
> > > > > >
> > > > > > > Just a note to the list, this problem still
> > > > > > > seems to exist as  late as  2004-04-07.
> > > > > > >
> > > > > > > Symptoms as we have seen it are this.  System
> > runs along just
> > 
> > > > > > > fine, no  errors.  At some random
> > > interval, not based upon time,
> > > 
> > > > > > > and not apparently based upon call load, sound
> > > > > > > drops out on all  calls made over the Zap (T1 
> > > > > > > PRI interface  in our case T100P card).  Any
> > new calls made or received from
> > 
> > > > > > > this time forward have no sound.  The problem
> > > > > > > is temporarily  fixed by a
> > > > > > shutdown and restart of the asterisk code. >
> > > > > > > This will be a major issue for anyone who is
> > > > > > > installing or  upgrading a  system using a T1
> > > > > > > card (our experience is with  the single port
> > > > > > > digium card,  but  previous postings 
> > > > > > concerning this issue indicate the problem 
> > > > > > > exists  with the 4 port as well). > A
> > > temporary work around has been to fall back to the CVS
> > > version 
> > > > > > > 2004-03-05  10:28 for zaptel and  asterisk.
> > > > > > > We've just  upgraded  (downgraded) from the 
> > current versions to the march
> > 
> > > > > > > 5th  versions and will be
> > > > > > watching to see if  the problem goes away. >
> > > > > > > Here are some of the error messages we are
> > > > > > seeing: >
> > > > > > > Apr  5 07:57:01 WARNING[-1200284752]: PRI:
> > > > > > > Read on 31 failed: Unknown error 500 Apr  5
> > > > > > > 07:57:01 NOTICE[-1200284752]: PRI got event: 8
> > > > > > on span 1 >
> > > > > > > Apr  6 07:10:28 WARNING[-1200215120]: PRI:
> > > > > > > Read on 29 failed: Unknown error 500 Apr  6
> > > > > > > 07:10:28 NOTICE[-1200215120]: PRI got event: 5
> > > > > > on span 1 >
> > > > > > > Apr  6 14:22:23 WARNING[-1200260176]: PRI:
> > > > > > > Read on 29 failed: Unknown error 500 Apr  6
> > > > > > > 14:22:23 NOTICE[-1200260176]: PRI got event: 6
> > > > > > on span 1 >
> > > > > > > Apr  6 14:53:17 WARNING[-1200165968]: PRI:
> > > > > > > Read on 30 failed: Unknown error 500 Apr  6
> > > > > > > 14:53:17 NOTICE[-1200165968]: PRI got event: 5
> > > > > > on span 1 >
> > > > > > > Apr  7 15:00:26 WARNING[-1210471504]: PRI:
> > > > > > > Read on 64 failed: Unknown error 500 Apr  7
> > > > > > > 15:00:26 NOTICE[-1210471504]: PRI got event: 5
> > > > > > on span 1 >
> > > > > > > Apr  7 20:33:52 WARNING[-1210508368]: PRI:
> > > > > > > Read on 55 failed: Unknown error 500 Apr  7
> > > > > > > 20:33:52 NOTICE[-1210508368]: PRI got event: 8
> > > > > > on span 1 >
> > > > > > > Apr  8 09:42:15 WARNING[-1210725456]: PRI:
> > > > > > > Read on 32 failed: Unknown error 500 Apr  8
> > > > > > > 09:42:15 NOTICE[-1210725456]: PRI got event: 5
> > > > > > on span 1 >
> > > > > > > -Chris
> > > > > > >
> > > > > > > On 03:14 AM 3/30/2004, Tais M. Hansen wrote:
> > > > > > > >-----BEGIN PGP  SIGNED MESSAGE-----
> > > > > > >  >Hash: SHA1
> > > > > > >  >
> > > > > > >  >Hi.
> > > > > > >  >
> > > > > > >  >I'm getting the following error at random
> > > > > > intervals on >
> > > > > > > my TE410P with  Asterisk
> > > > > > >
> > > > > > >  >CVS-03/30/04-11:49:01-CEST.
> > > > > > >  >
> > > > > > >  >I have two spans active, one connected to my
> > > > > > Telco , the >
> > > > > > > other to a Siemens
> > > > > > >
> > > > > > >  >PABX. Both spans display this behavior at
> > > > > > random >
> > > > > > > intervals.
> > > > > > >
> > > > > > >  >All calls are dropped when this happens.
> > > > > > Spans are not >
> > > > > > > necessarily in use  when
> > > > > > >
> > > > > > >  >this happens.
> > > > > > >  >
> > > > > > >  >
> > > > > > >  >Mar 30 12:01:41 WARNING[81926]:
> > > > > > chan_zap.c:6017 >
> > > > > > > zt_pri_error: PRI: Read  on 72
> > > > > > >
> > > > > > >  >failed: Unknown error 500
> > > > > > >  >Mar 30 12:01:41 NOTICE[81926]:
> > > > > > chan_zap.c:6733 >
> > > > > > > pri_dchannel: PRI got  event: 4
> > > > > > >
> > > > > > > <snip>
> > > > > > >
> > > > > > >
> > > > > > >
> _______________________________________________
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> > Willy Wouters
> > ypOne Publishing
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> Willy Wouters
> ypOne Publishing
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Willy Wouters
ypOne Publishing




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