# Error when run WRF

**URL:** <https://forum.cmascenter.org/t/error-when-run-wrf/878>\
**Category:** WRF-CMAQ\
**Created:** [August 11, 2019, 12:04pm UTC](https://forum.cmascenter.org/t/error-when-run-wrf/878 "2019-08-11T12:04:57Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![rodrigo](https://avatars.discourse-cdn.com/v4/letter/r/4af34b/32.png) [@rodrigo](https://forum.cmascenter.org/u/rodrigo)\
**Post date:** [August 11, 2019, 12:04pm UTC](https://forum.cmascenter.org/t/error-when-run-wrf/878/1 "2019-08-11T12:04:57Z")

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

Backtrace for this error:  
#0 0x7F81011B0777  
#1 0x7F81011B0D7E  
#2 0x7F81008E8CAF  
#3 0x279365D in \_\_module\_sf\_sfclayrev\_MOD\_psim\_stable  
#4 0x2797C7F in \_\_module\_sf\_sfclayrev\_MOD\_sfclayrev1d  
#5 0x279C60D in \_\_module\_sf\_sfclayrev\_MOD\_sfclayrev  
#6 0x1EFEE34 in \_\_module\_surface\_driver\_MOD\_surface\_driver  
#7 0x17BFA3C in _module\_first\_rk\_step\_part1\_MOD\_first\_rk\_step\_part1  
 #8 0x11B48C9 in solve\_em  
 #9 0x108BC0A in solve\_interface_  
#10 0x471F1A in \_\_module\_integrate\_MOD\_integrate  
#11 0x4724FB in \_\_module\_integrate\_MOD\_integrate  
#12 0x4724FB in \_\_module\_integrate\_MOD\_integrate  
#13 0x4724FB in \_\_module\_integrate\_MOD\_integrate  
#14 0x4076E3 in \_\_module\_wrf\_top\_MOD\_wrf\_run

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<div class="post-metadata">

**Author:** ![lizadams](https://avatars.discourse-cdn.com/v4/letter/l/49beb7/32.png) [@lizadams](https://forum.cmascenter.org/u/lizadams)\
**Post date:** [September 5, 2019, 7:58pm UTC](https://forum.cmascenter.org/t/error-when-run-wrf/878/2 "2019-09-05T19:58:50Z")

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If you are using csh or tcsh, try this:

limit stacksize unlimited

If you are using sh or bash, use this command:

ulimit -s unlimited

Then try re-running WRF.

This may not solve your problem but the default stack size is often quite small and may result in segmentation faults due to insufficient stack memory.

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**Author:** ![franky](https://avatars.discourse-cdn.com/v4/letter/f/958977/32.png) [@franky](https://forum.cmascenter.org/u/franky)\
**Post date:** [November 10, 2020, 7:32am UTC](https://forum.cmascenter.org/t/error-when-run-wrf/878/3 "2020-11-10T07:32:57Z")

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Hi, do you fix the problem? I need some help.

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<div class="post-metadata">

**Author:** ![lizadams](https://avatars.discourse-cdn.com/v4/letter/l/49beb7/32.png) [@lizadams](https://forum.cmascenter.org/u/lizadams)\
**Post date:** [November 10, 2020, 5:09pm UTC](https://forum.cmascenter.org/t/error-when-run-wrf/878/4 "2020-11-10T17:09:12Z")

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Please start a new issue, and follow the best practices in the following post. [PLEASE READ before posting](https://forum.cmascenter.org/t/please-read-before-posting/1321)