Why do I receive a segmentation violation when starting MATLAB configured to use Login Named User?

I have an installation of MATLAB configured to use Login Named User (LNU). When starting MATLAB it crashes with a segmentation violation with information similar to the following:

 Abnormal termination:

 Segmentation violation

 Register State (from fault):

   RAX = 0000000000000000  RBX = 00000000100e5088

   RCX = 00002b676c75aaa0  RDX = 00000000100e5978

   RSP = 00000000490ce820  RBP = 00000000490ce930

   RSI = 0000000000000001  RDI = 00000000100e5978

    R8 = 0000000000000000   R9 = 0000000000000000

   R10 = 0000000000000000  R11 = 00002b676c75aab6

   R12 = 00000000100e5088  R13 = 00000000100e5978

   R14 = 00000000490cea60  R15 = 00000000490cea60

   RIP = 00002b67652cc1eb  EFL = 0000000000010206

    CS = 0033   FS = 0000   GS = 0000

 Stack Trace (from fault):

 [  0] 0x00002b6764bc01de   /apps/matlab/R2012b_trial/bin/glnxa64/libmwfl.so+00516574 _ZN2fl4diag15stacktrace_base7captureERKNS0_14thread_contextEm+000158

 [  1] 0x00002b6764bc14b2   /apps/matlab/R2012b_trial/bin/glnxa64/libmwfl.so+00521394

 [  2] 0x00002b6764bc2ffe   /apps/matlab/R2012b_trial/bin/glnxa64/libmwfl.so+00528382 _ZN2fl4diag13terminate_logEPKcRKNS0_14thread_contextE+000174

 [  3] 0x00002b676598b093  /apps/matlab/R2012b_trial/bin/glnxa64/libmwmcr.so+00557203 _ZN2fl4diag13terminate_logEPKcPK8ucontext+000067

 [  4] 0x00002b6765987b9d  /apps/matlab/R2012b_trial/bin/glnxa64/libmwmcr.so+00543645

 ...

Answer 1

[MathWorks Support Team]

The reason for this error is that the current user doesn't have permission to access the XML file needed to use the Login Named User (LNU) feature. This XML file is named "license_info.xml" and is located in one of the following locations:

1) The $MATLAB/licenses folder, where $MATLAB is the MATLAB installation directory.

2) The user application data folder (Windows) or home folder (Linux/Mac)

Windows: %appdata%/Mathworks/MATLAB/R20xx_licenses

Mac/Linux/Solaris: ~/.matlab/R20xx_licenses

Granting read access to the XML file to the affected user will resolve this issue.