ERROR

When solving in mechanical, the following or similar SIG$SEGV errors occur intermittently.

***ERROR ***    CP =    64.031 TIME= 09:52:21
An unexpected error ( SIG$SEGV ) has occurred... ANSYS internal data 
has been corrupted. ANSYS is unable to recover and will terminate. 
Previously saved files are unaffected.  Please send the data leading
to this operation to your technical support provider, as this will allow ANSYS, Inc to improve the program.

Current ANSYS Traceback: cdsfpr cdload loadhiswrite solvcl ANSYS

Software & Version

Mechanical 2021R2

*This example was taken from this version but is not necessarily limited to this version.

Description/Cause

SIG$SEGV errors are related to software/hardware interaction issues. It could be failing hardware, corrupt OS, corrupt Ansys install and/or corrupt model.  In this documented case, since model runs were successful periodically on problematic computer and fully on others, we turned to the likely cause of a corrupt Windows or Ansys install, failing hardware (RAM, Disk, etc). In this case, it was failing memory. 

Solution

1. Rule out a corrupt model
   1. See if it can run on another computer and same version of Ansys successfully. 
2. Rule out hardware failure
   1. HOW TO - Run Dell Hardware Diagnostics 
   2. How to Test Your Computer's RAM for Problems (howtogeek.com)
   3. How to Check Your Hard Drive’s Health With CrystalDiskInfo (silicophilic.com)
3. Rule out a Corrupt OS
   1. Check & Repair Windows Installation Health
4. Rule out corrupt Ansys Installation
   1. Comprehensively Reinstall Ansys

Note: An unexpected error ( SIG$SEGV ) has occurred... - ANSYS: ANSYS Software Suite - Eng-Tips