[MITgcm-devel] problem with my last checkin

[Martin Losch]

No, I didn't, stupid me. The seg-fault goes away with "unlimit", but  
still I don't see how my changes lead to a stack overflow.

Also, is the "unlimit" taken care of with the automated tests?

Martin
On 5 Feb 2008, at 15:33, Patrick Heimbach wrote:

> 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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>
> ---
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