MATLAB crash- access violation

[Faezeh]

Hi Mariano,

Thanks for this complete toolbox, it will be really useful for me.. I've just installed it and tried QRS detection, using this:

ECGw=ECGwrapper('recording_name','recordings\example_recording.mat','ECGtaskHandle','QRS_detection')

which was successful in configuring the ECGwrapper object, but when now I run it (ECGw.Run), it works upto: ecgpuwave and then Matlab gives an error (access violation)...

Description of the process:

 + Recording: recordings\example_recording.mat

 + Task name: QRS_detection                    

Processing QRS detector wavedet

Processing QRS detector pantom

..................

..................

.................

.................

.................

.................

.................

.................

.................

.................

Processing QRS detector aristotle

###############################################

# Could not execute "aristotle" QRS detector. #

###############################################

Processing QRS detector gqrs

Processing QRS detector sqrs

Processing QRS detector wqrs

Processing QRS detector ecgpuwave

####################################################################

# ecgpuwave failed in recording example_recording_1_10000 lead PPG #

####################################################################

looking at the log file (below), the problem seems to be with the readannot.mex...

------------------------------------------------------------------------

          Access violation detected at Thu Aug 06 17:42:22 2015

------------------------------------------------------------------------

Configuration:

  Crash Decoding     : Disabled

  Default Encoding   : windows-1252

  Graphics card 1    : NVIDIA ( 0x10de ) NVIDIA GeForce 310M Version 8.16.11.8921

  MATLAB Architecture: win32

  MATLAB Root        : C:\Program Files\MATLAB\R2014b

  MATLAB Version     : 8.4.0.150421 (R2014b)

  Operating System   : Microsoft Windows 7 Ultimate 

  Processor ID       : x86 Family 6 Model 37 Stepping 5, GenuineIntel

  Software OpenGL    : 0

  Virtual Machine    : Java 1.7.0_11-b21 with Oracle Corporation Java HotSpot(TM) Client VM mixed mode

  Window System      : Version 6.1 (Build 7601: Service Pack 1)

Fault Count: 1

Abnormal termination:

Access violation

Register State (from fault):

  EAX = 00000000  EBX = 00000001

  ECX = 76e83dcf  EDX = 775470b4

  ESP = 00c28488  EBP = 00c28550

  ESI = 00000000  EDI = 00000000

 

  EIP = 07ff1a37  EFL = 00210202

 

   CS = 0000001b   DS = 00000023   SS = 00000023

   ES = 00000023   FS = 0000003b   GS = 00000000

Stack Trace (from fault):

[  0] 0x07ff1a37 C:\Users\faezeh\Documents\MATLAB\ecg-kit-0.1.0\common\readannot.mexw32+00006711 mexFunction+00001751

[  1] 0x7c791a3f C:\Program Files\MATLAB\R2014b\bin\win32\libmex.dll+00072255 mexRunMexFile+00000127

[  2] 0x7c790b94 C:\Program Files\MATLAB\R2014b\bin\win32\libmex.dll+00068500 inSwapMexfileReader+00000692

[  3] 0x7c79032d C:\Program Files\MATLAB\R2014b\bin\win32\libmex.dll+00066349 mexUnlock+00005245

[  4] 0x0359d813 C:\Program Files\MATLAB\R2014b\bin\win32\m_dispatcher.dll+00055315 Mfh_file::dispatch_fh+00000595

[  5] ....

.

.

.

This error was detected while a MEX-file was running. If the MEX-file

is not an official MathWorks function, please examine its source code

for errors. Please consult the External Interfaces Guide for information

on debugging MEX-files.

If this problem is reproducible, please submit a Service Request via:

    http://www.mathworks.com/support/contact_us/

A technical support engineer might contact you with further information.

Thank you for your help.** This crash report has been saved to disk as C:\Users\faezeh\AppData\Local\Temp\matlab_crash_dump.2828-1 **

Would you please kindly help me resolve this issue?

Regards,

Fazi

[Mariano Llamedo Soria]

Dear fazeh, ecgpuwave is neither the better nor the most stable qrs detector. I suggest you two things:

1- updating the toolbox , do a git pull or download version 0.1.1. Try if problem remains

2 omit ecgpuwave with the detectors property in the ecgtask object. See examples and docs about it. Just assign to this property a cell array {'gqrs' 'wqrs' …} with the detectors you want to use.

Hope this help, thanks for trying the kit
M

selecting all the detectors except ecgpuwave, and check

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[Faezeh]

Thanks Mariano.

Problem solved :) version 0.1.2 works perfectly!

Regards,

Faezeh