Error: cannot restore segment prot after reloc: Permission denied

Article Details

URL:	http://www.archiware.com/support/index.php?_m=knowledgebase&_a=viewarticle&kbarticleid=58
Article ID:	58
Created On:	18 Jul 2007 03:39 PM

Answer

In case you run a Linux host and get the following error message in the logfile when starting PresSTORE:
Error: modload: /usr/local/aw/bin/libarchdev.so:
     couldn't load file "/usr/local/aw/bin/libarchdev.so":
     /usr/local/aw/bin/libarchdev.so: cannot restore segment prot after reloc:
     Permission denied
Fatal: modload: failed to load module '/usr/local/aw/bin/libarchdev.so'

This problem is most probably caused by the security extension SeLinux. SeLinux is active in newer Linux distributions with 2.6. kernels. SeLinux changes some system default behaviour, including the shared library loading.

This can be checked by disabling SeLinux: just add the line

 SELINUX=disabled

to the file

 /etc/sysconfig/selinux
an restart the host.

In case the shared libary can be loaded this way, but the SeLinux shall be kept active, it is required to adopt the security context for the shared library loading by using the chcon program.