Friday, September 23, 2016

Crash in wdmaud.drv module ( Win 7 64 bit Service Pack 1) [Solved]

Crash in wdmaud.drv module ( Win 7 64 bit Service Pack 1)

I support IP softphone which uses winmmAPI.
Very intermittemtly our application reports crash in wdmaud.drv module.
Problem signature:
  Problem Event Name:        
  Application Name:
  Application Version:   
  Application Timestamp:     
  Fault Module Name:           
  Fault Module Version:        
  Fault Module Timestamp: 
  Exception Code:    
  Exception Offset:  
  OS Version:             
  Locale ID:   1033
  Additional Information 1:  
  Additional Information 2:  
  Additional Information 3:  
  Additional Information 4:  
Collected dumps show that in most cases the crash occurs in
    wdmaud.drv!CWorker::_DoRecurringJobs()  + 0x5e bytes  
(or _DoRecurringJobs()  + 0x63 bytes)
    wdmaud.drv!CWorker::_ThreadProc()  + 0x265 bytes    
    wdmaud.drv!CWorker::_StaticThreadProc()  + 0x2e bytes           

Since the issue occurs very intermittently it is unclear which actions from our application side can cause the crash.
Sometimes it happens when the phone starts to work with audio, sometimes when finishes.
The issue occurs on Win 7 64 bit Service Pack 1.
I surfed the internet thoroughly but didn’t find any clue so would appreciate any ideas.

Anwsers to the Problem Crash in wdmaud.drv module ( Win 7 64 bit Service Pack 1)

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