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Cisco Bug: CSCuw38516 - DSP channel stuck if receiving open_voice_channel for a non-closed chan

Last Modified

Nov 12, 2018

Products (1)

  • Cisco IOS

Known Affected Releases

41.2(0)DSP

Description (partial)

Symptom:
DSP channel is stuck and can't be used an more. T1/E1 calls fail due to this.

Conditions:
Under some race condition, host could send two open_voice_channel messages and causes this issue.

Related Community Discussions

%DSMP-3-DSP_TIMEOUT: DSP timeout on DSP 2/1:1: event 0x6, DSMP timed out, while waiting for statistics from the DSP. DSMP State = S_DSMP_COLLECTING_STATS
Hi Team, We have cisco ISR4321/K9 with "bootflash:isr4300-universalk9.03.16.01a.S.155-3.S1a-ext.SPA.bin We hear no audio during calls and following DSP time out error appears. To provide quick fix we reload the router. We had replaced the DSP module about 2 months ago assuming this issue was caused by DSP (hardware). Jul 13 07:55:25.944: %DSMP-3-DSP_TIMEOUT: DSP timeout on DSP 2/1:1: event 0x6, DSMP timed out, while waiting for statistics from the DSP. DSMP State = S_DSMP_COLLECTING_STATS Jul 13 ...
Latest activity: Jul 17, 2017
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Bug Details Include

  • Full Description (including symptoms, conditions and workarounds)
  • Status
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  • Related Community Discussions
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