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-   -   patchMassFlow segfault (http://www.cfd-online.com/Forums/openfoam/80263-patchmassflow-segfault.html)

pit September 21, 2010 04:49

patchMassFlow segfault
 
Hi,

I have a problem with the simpleFunctionObjects in my OF 1.7. I installed step by step descriped by the wiki and add the function in the controlDict.
Code:

functions
(
      massFlow
  {
    type patchMassFlow;
    functionObjectLibs ("libsimpleFunctionObjects.so");
    verbose true;
    patches
    (
      //inlet_1
      //inlet_2
      //inlet_3
      outlet
    );
    //factor 19.7363;
  }
);

But I get only a segfault
Code:

Reading field p_rgh
Starting time loop
#0  Foam::error::printStack(Foam::Ostream&) in ".../OpenFOAM-1.7.0/lib/linux64GccDPOpt/libOpenFOAM.so"
#1  Foam::sigSegv::sigSegvHandler(int) in ".../OpenFOAM-1.7.0/lib/linux64GccDPOpt/libOpenFOAM.so"
#2  __restore_rt at sigaction.c:0
#3  ?? in "/home/user/OpenFOAM/user-1.7.0/lib/linux64GccDPOpt/libsimpleFunctionObjects.so"
Segmentation fault!

I didn't get the errormessages every time and if I uncomment the function the error is gone.
Any ideas regarding source of error?

gschaider September 22, 2010 10:36

Quote:

Originally Posted by pit (Post 275950)
Hi,

I have a problem with the simpleFunctionObjects in my OF 1.7. I installed step by step descriped by the wiki and add the function in the controlDict.
Code:

functions
(
      massFlow
  {
    type patchMassFlow;
    functionObjectLibs ("libsimpleFunctionObjects.so");
    verbose true;
    patches
    (
      //inlet_1
      //inlet_2
      //inlet_3
      outlet
    );
    //factor 19.7363;
  }
);

But I get only a segfault
Code:

Reading field p_rgh
Starting time loop
#0  Foam::error::printStack(Foam::Ostream&) in ".../OpenFOAM-1.7.0/lib/linux64GccDPOpt/libOpenFOAM.so"
#1  Foam::sigSegv::sigSegvHandler(int) in ".../OpenFOAM-1.7.0/lib/linux64GccDPOpt/libOpenFOAM.so"
#2  __restore_rt at sigaction.c:0
#3  ?? in "/home/user/OpenFOAM/user-1.7.0/lib/linux64GccDPOpt/libsimpleFunctionObjects.so"
Segmentation fault!

I didn't get the errormessages every time and if I uncomment the function the error is gone.
Any ideas regarding source of error?

Just to be sure: which solver are you using? The patch outlet is definitly there, is it? Is this happening at the end of the first time-step or at the end?

Bernhard

pit September 22, 2010 12:13

Hi Bernhard, solver was: buoyantSimpleFoam But i tried also a simple tube with simpleFoam with the same result (segfault). The error turn up before the first time-step. It is in order how I quoted. The patch 'outlet' is definetly there.

gschaider September 22, 2010 12:42

Quote:

Originally Posted by pit (Post 276203)
Hi Bernhard, solver was: buoyantSimpleFoam But i tried also a simple tube with simpleFoam with the same result (segfault). The error turn up before the first time-step. It is in order how I quoted. The patch 'outlet' is definetly there.

Strange. Could you please post a report plus a small example-case to the OF-extend-Mantis and I'll have a look

pit September 22, 2010 13:18

Thank you for the help. I will do it tomorrow at work. But I'm not sure what you mean with OF-extend-Mantis? To prevent some mistake. I'm not using the full OF-extend package. I have only download the 'simpleFunctionsObjects' and added them to my local OF-1.7.0 (CentFOAM) Installation.

pit September 23, 2010 04:32

[code]
user@xxx simple_rohr$ simpleFoam
/*---------------------------------------------------------------------------*\
| ========= | |
| \\ / F ield | OpenFOAM: The Open Source CFD Toolbox |
| \\ / O peration | Version: 1.7.0 |
| \\ / A nd | Web: www.OpenFOAM.com |
| \\/ M anipulation | |
\*---------------------------------------------------------------------------*/
Build : 1.7.0-5773603db906
Exec : simpleFoam
Date : Sep 23 2010
Time : 10:04:44
Host : W71C-FRGHC0010
PID : 18166
Case : /workDir/simple_rohr
nProcs : 1
SigFpe : Enabling floating point exception trapping (FOAM_SIGFPE).

// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
Create time

Create mesh for time = 0

Reading field p

Reading field U

Reading/calculating face flux field phi

Selecting incompressible transport model Newtonian
Selecting RAS turbulence model SpalartAllmaras
SpalartAllmarasCoeffs
{
sigmaNut 0.66666;
kappa 0.41;
Cb1 0.1355;
Cb2 0.622;
Cw2 0.3;
Cw3 2;
Cv1 7.1;
Cv2 5;
}


Starting time loop

Speicherzugriffsfehler
[\code]
Speicherzugriffsfehler = segfault

I have report it at OF-extend-Mantis with the simplest case. I hope the informations are enough.

pit September 24, 2010 08:34

update
 
Hi Bernhard,

because of newer knowledge I'm 'sure' that the 'simpleFunctionObjects'-package is NOT the problem. It seems that my installation/wmake work not correctly.

For more informations look:http://www.cfd-online.com/Forums/ope...tml#post276508

gschaider September 24, 2010 14:51

Quote:

Originally Posted by pit (Post 276510)
Hi Bernhard,

because of newer knowledge I'm 'sure' that the 'simpleFunctionObjects'-package is NOT the problem. It seems that my installation/wmake work not correctly.

For more informations look:http://www.cfd-online.com/Forums/ope...tml#post276508

Thanks for the report anyway. I've closed it. From what I saw in your other posting the problem is that you seem to compile in 64 bit but then it tries to link it to the 32-bit object /usr/lib/crt1.o

Should the problem with the simpleFunctionObjects persist once you resolved that installation problem feel free to reopen the bug

Bernhard


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