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Problems after changing solar spectrum in CAM5

Hi everyone,    I've changed the solar sppectrum by editing sfac in rad_solar_var.F90 in /cesm1_2_1/models/atm/cam/src/physics/rrtmg ***********************************************subroutine get_variability( sfac )......    sfac(:) = (/4.14842_r8, 3.61966_r8,  3.15228_r8,  2.79337_r8,   2.39297_r8,   2.02877_r8,   1.86274_r8, &                  1.32597_r8, 0.644325_r8, 0.268282_r8, 0.0988650_r8, 0.0338941_r8, 0.0235388_r8, 1.0_r8/)  scon_ratio  = 1.05       sfac(:nradbins) = sfac(:nradbins)*scon_ratio       endsubroutine get_variability  **********************************************************************   The simulation crashed after about 4 months.     The cesm.log didn't give much information except saying:     forrtl: severe (174): SIGSEGV, segmentation fault occurred   However in atm.log I found Tmax , Tmin and Average Height went wrong before the simulation crashed:  
**********************************************************  T  max =    15345494.4789197       min =   -1403468733.83830 W (mb/day) max =    535.560156949999       min =   -911.703121635376 Average Height (geopotential units) =   -27551.266578361 
**********************************************************
 Do you know what might be the problem? Any comments and suggestions will be appreciated.   
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