DSP resetting after alarms - Calls Dropped

[andyhibbert]

Every hour or so I get the following error message on my voice gateway

%DSPRM-3-DSPALARM: Received alarm indication from dsp (0/1). Resetting the DSP.
%DSPRM-3-DSPALARMINFO: 002A 0000 0080 0000 0008 0008 5761 7463 6844 6F67 2054 696D 656F 7574 2C20 5043 3D30 3030 6539 3663 3400 4E5F 0000 0000 0000
%DSPRM-3-DSPALARMINFO: WatchDog Timeout, PC=000e96c4

DSP trace buffer dump for DSP 0/1
DSP version: 26.3.8
Trace buffer size: 1392 bytes
===== Begining of DSP tracebuffer dump=====
DSPTB0:00058DD0 00057945 00057944 00057ADB 00057AC6 0014542D 00145428

etc

etc

Is this likely to be a caused by a faulty DSP module or could it be a IOS configuration error or a problem with the PSTN connection?

The hardware is a Cisco 2921 router running C2900 Software (C2900-UNIVERSALK9-M), Version 15.0(1)M4.

The PSTN interface card is VWIC2-2MFT-T1/E1.

There is a PVDM3 DSP DIMM with 32 Channels on Slot 0 SubSlot 4

There is a PVDM3 DSP DIMM with 32 Channels on Slot 0 SubSlot 5

Thanks

Andy

[dijohn]

This is due to

http://tools.cisco.com/Support/BugToolKit/search/getBugDetails.do?method=fetchBugDetails&bugId=CSCtj71414

Symptom: dsp crash 

Conditions: when max tali lehgth of ecan is configure smaller than 80 ms.

Workaround: use default value as 128ms.


/divin

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[dijohn · Accepted solution]

Workaround: use default value as 128ms.
 
=> Change ALL the voice-ports and have echo-cancel coverage configured
to 128 (default value)
 
http://tools.cisco.com/Support/BugToolKit/search/getBugDetails.do?method=fetchBugDetails&b
ugId=CSCtj71414

voice-port 0/2/0:15
   echo-cancel coverage 128

[Kapil Atrish]

Solved my problem too. Thanks for your post.

[Miguel Angel Escobar Rincon]

I performed this procedure but I'm still getting the same log, even after clearing the logging.