# Bug alike: submit - invalid memory reference

**URL:** <https://openmc.discourse.group/t/bug-alike-submit-invalid-memory-reference/224>\
**Category:** User Support\
**Created:** [June 29, 2016, 7:01am UTC](https://openmc.discourse.group/t/bug-alike-submit-invalid-memory-reference/224 "2016-06-29T07:01:09Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![niuoba](https://avatars.discourse-cdn.com/v4/letter/n/f04885/32.png) [@niuoba](https://openmc.discourse.group/u/niuoba)\
**Post date:** [June 29, 2016, 7:01am UTC](https://openmc.discourse.group/t/bug-alike-submit-invalid-memory-reference/224/1 "2016-06-29T07:01:09Z")

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Dear All:

The attachment is input card for OpenMC.  
The version I used is version7.0, and nuclear database is JEFF2.2.

The offercial references performance good.  
But when I run the attachment case it throw out an error:

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

[input\_card.zip](https://openmc.discourse.group/uploads/short-url/7QfyfpObNltJ04iV0Fc1XsILq07.zip) (108 KB)

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**Author:** ![paulromano](https://yyz2.discourse-cdn.com/free1/user_avatar/openmc.discourse.group/paulromano/32/486_2.png) [@paulromano](https://openmc.discourse.group/u/paulromano)\
**Post date:** [June 29, 2016, 9:50am UTC](https://openmc.discourse.group/t/bug-alike-submit-invalid-memory-reference/224/2 "2016-06-29T09:50:34Z")

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Hi NiuOBA,

I suspect that this might be caused by a bug in the treatment of Ni-59. Can you try removing that nuclide and letting me know if you’re able to run successfully?

Thanks,  
Paul