Random Segmentation faults

[qalshidi]

Hi,

I am running RAM-SCB for several days (simulation time) and it sometimes randomly crashes with a segfault. I have found that rerunning the simulation several times until it can finally end is my best solution for right now. I unfortunately cannot make a minimal reproducible example. This was compiled using GSL v2.7. Below is the segfault message and PARAM.in file:

stderr:

Program received signal SIGSEGV: Segmentation fault - invalid memory reference.

Backtrace for this error:
#0  0x2b713ce7862f in ???
#1  0x2b713ba49cd8 in gsl_spline_init
	at ../../interpolation/spline.c:72
#2  0x5e87db in ???
#3  0x4991c8 in ???
#4  0x4ed8d3 in ???
#5  0x4b950b in ???
#6  0x4918f7 in ???
#7  0x404cb4 in ???
#8  0x404ab6 in ???
#9  0x2b713d0a7554 in ???
#10  0x404ae6 in ???
#11  0xffffffffffffffff in ???

PARAM.in:

PARAM File for Test Week 05 Simulation
Derived from PARAM.in.default

#DESCRIPTION
Test_Week05: 2005-05-12

#EVENT
test_week05_final

************** REQUIRED BLOCK *****************
#STARTTIME
2005					iYear
5						iMonth
12						iDay
00						iHour
00						iMinute
0						iSecond
0.0						FracSecond

#STOPTIME
2005					iYear
5						iMonth
18						iDay
23						iHour
59						iMinute
59						iSecond
0.0						FracSecond

***********************************************

*************** TIMING BLOCK ******************
#MAXTIMESTEP
20.0			MaxHalfStep

#MINTIMESTEP
0.01			MinHalfStep

#VARIABLEDT
T			DoVarDt

#COMPONENT_TIMESTEPS
300.0			SCBTimeStep
300.0			BCTimeStep
300.0			EFTimeStep

***********************************************

*************** COMPONENT BLOCK ***************
#OUTERBOUNDARY
LANL			NameBoundPlasma
T89D			NameBoundMag
MAXW			NameDistribution

#EFIELD
WESC			NameEfield
F				UseEfInd

***********************************************

***************** RAM BLOCK *******************


***********************************************

***************** SCB BLOCK *******************
#SCBFLAGS
F			Isotropic
F			ReduceAnisotropy
T			BetaExtrapolation
F			AzimuthalOffset
F			EmptyLossCone
T			AdaptiveMesh


#SCBSMOOTHING
1			PressureSmoothing
3			SavitzyGolayIterations

***********************************************

***************** INPUT BLOCK *****************
#OMNIFILE
omni.txt		NameOmniFile

#OMNIFILESOURCE
T			UseSWMFFormat

#INDICES_FILE
RamIndices.txt		NameIndicesFile

***********************************************

***************** OUTPUT BLOCK ****************
#SAVERESTART
3600.0			DtSaveRestart
T			DoSaveFinalRestart

#TIMEDRESTART
F			TimedRestartFiles

#LOGFILE
600.0			DtLogFileWrite

#SAVEFLUX
600.0			DoSaveFlux

#OUTPUT_FREQUENCY
-1			DtPressureFileWrite
-1			DthIFileWrite
-1			DtEFieldFileWrite
-1			DtMAGxyzFileWrite

#DUMP3DFLUX
F			DoDump3DFlux

***********************************************

Thank you for your time.