When you run a program that uses Gurobi on some SELinux systems, you may run into the following error message:

error while loading shared libraries:
cannot restore segment prot after reloc: Permission denied

The simplest workaround is to set alloc_execmod on your system (as root):

> setsebool -P allow_execmod on
The on setting is the default on most SELinux systems, but it may be off in some cases. Note that this is a system-wide setting, so you should consult your system administrator before making this change.

A more local workaround is to modify the security context for the Gurobi shared library:

> chcon -t textrel_shlib_t

You can also use the semanage command to set SELinux policy for this library.

Please consult the SELinux documentation for more information on these commands.

Try Gurobi for Free

Choose the evaluation license that fits you best, and start working with our Expert Team for technical guidance and support.

Evaluation License
Get a free, full-featured license of the Gurobi Optimizer to experience the performance, support, benchmarking and tuning services we provide as part of our product offering.
Academic License
Gurobi supports the teaching and use of optimization within academic institutions. We offer free, full-featured copies of Gurobi for use in class, and for research.
Cloud Trial

Request free trial hours, so you can see how quickly and easily a model can be solved on the cloud.