On Red Hat Linux Enterprise AS 3.0 with Update 5, the Policy Server may fail to initialize the Java Virtual Machine when running on a multi-processor machine. As a result, the following SiteMinder functionality does not work:
This problem is caused by an incompatibility between the Sun JDK on Linux and Red Hat's ExecShield, a kernel-based security feature. A work-around is to disable the ExecShield in the Linux SMP kernel only.
To decide if you want to disable the ExecShield, see Red Hat's "New Security Enhancements in Red Hat Enterprise Linux v.3, update 3" at http://www.redhat.com/f/pdf/rhel/WHP0006US_Execshield.pdf.
To disable ExecShield in the Linux SMP kernel only
title Red Hat Enterprise Linux AS (2.4.21-32.ELsmp)
root (hd0,0)
kernel /vmlinuz-2.4.21-32.ELsmp ro root=LABEL=/noexec=off
initrd /initrd-2.4.21-32.ELsmp.img
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