cannot restore segment prot after reloc的问题

lixuewei97

Topic:
Some Linux distributions with SELinux enabled may prevent IDL from running under the default security context. This TechTip is a workaround for CR#41937

Discussion:
Newer Linux distributions have enabled new kernel security extensions from the SELinux project at the NSA. These extensions allow finer-grained control over system security. However, SELinux also changes some default system behaviors, such as shared library loading, that can be problematic to third party programs.
If you receive the error message "cannot restore segment prot after reloc: Permission denied" when launching IDL, then your SELinux configuration is preventing IDL from launching.

To rectify this issue, you can either:
1.
Change the default security context for IDL by issuing the command:
chcon -t texrel_shlib_t /usr/local/rsi/idl_6.1/bin/bin.linux.x86/*.so
2.
Disabling SELinux altogether by setting the line
SELINUX=disabled
in your /etc/sysconfig/selinux file.
For more information about SELinux, please consult your Linux distribution vendor.

转自：
http://www.ittvis.com/services/techtip.asp?ttid=3092
自己碰到的情况：
执行程序时提示错误：error while loading shared libraries: /usr/lib/oracle/10.2.0.1/client/lib/libnnz10.so: cannot restore segment prot after reloc: Permission denied
用第1种办法解决：chcon -t texrel_shlib_t /usr/lib/oracle/10.2.0.1/client/lib/*.so

texrel_shlib_t是一个老参数名，现在已经被textrel_shlib_t代替(之差一个t)，但是依然保持texrel_shlib_t的兼容性
我也碰到这个问题，已经解决，我试了一下，
chcon -t texrel_shlib_t
或
chcon -t textrel_shlib_t
都可以，最好还是后者吧，比较新

本文来自ChinaUnix博客，如果查看原文请点：http://blog.chinaunix.net/u1/57862/showart_1799619.html