[MITgcm-devel] problem with my last checkin

[Patrick Heimbach]

Did you try the "usual" seg fault candidate first:

unlimit

-p.

On Feb 5, 2008, at 9:06 AM, Martin Losch wrote:

> Hi there,
>
> I have just checked in some functionality that is handy for rotated  
> spherical grids (basically a few new scalar variables in PARAMS.h  
> and a new subroutine that recomputes XC/YC/XG/YG in one special  
> case. The new code does not change the verification experiments on  
> my linux_ia32_g77-machine. But now I am rerunning testreport on  
> hugo.csail.mit.edu with the same build_options_file and I get  
> segmentation faults (linux_ia32_g77) for fizhi-cs-aqualev and fizhi- 
> cs-32x32x40. Everything else is OK.
>
> I have tried to find the problem, but the segmentation fault  
> happens somewhere within fizhi, here' s the debugger output
>>
>> Program received signal SIGSEGV, Segmentation fault.
>> 0x0805aca8 in solir_ (m=0xbf897574, n=0x8581468, ndim=0x8581468,  
>> np=0x85810e0, wh=0xbf114b50, taucld=0xbf24cde0, tauclb=0xbf1c8b80,  
>> tauclf=0xbf18cb70, reff=0xbf2c4df0, ict=0xbf897598, icb=0xbf89759c,
>>     fcld=0xbf574f40, cc=0xbf204b90, taual=0xbf210dd0,  
>> csm=0xbefdcad0, rsirbm=0xbf47aec0, rsirdf=0xbf478eb0,  
>> flx=0xbf42ee40, flc=0xbf3f0e30, fdirir=0xbf472e80,  
>> fdifir=0xbf470e70) at fizhi_swrad.f:1732
>> 1732               ssaclt(i,j)=1.0
>> Current language:  auto; currently fortran
>>
> I have no idea what's going on, and I can't even run g77 -fbounds- 
> check, because in fizhi, there are so many assignments where this  
> array bound check chockes, e.g. variable mndy(12,4) is access via  
> DO I=1,48; mnc(I,1)=...; ENDDO, which is technically correct by  
> makes it impossible to debug these files. What am I to do? Remove  
> my changes again?
>
> Martin
>
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---
Patrick Heimbach | heimbach at mit.edu | http://www.mit.edu/~heimbach
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