I'm running into the problem using Linux::Smaps on RHEL with an Apache
server on port 80. Namely, that the httpd child doesn't have
permissions to look at the smaps file.

   Linux::Smaps: Cannot open /proc/20074/smaps: Permission denied
 or
   Linux::Smaps: Cannot open /proc/self/smaps: Permission denied

I believe it is this bug:

  https://bugzilla.redhat.com/show_bug.cgi?id=322881

Since the redhat folks don't seem to be in a hurry to fix this, I'm
wondering if anyone has discovered a workaround. (Other than, "don't
use RHEL" - beyond my control. :))

Thanks
Jon