Why does 'su - oracle' command fail with error "su: cannot set user id: Resource temporarily unavailable"?

Solution Verified - Updated -

Issue

  • `su - oracle' fails with following error message.
su: cannot set user id: Resource temporarily unavailable

Environment

  • Red Hat Enterprise Linux 5
  • Red Hat Enterprise Linux 6
  • Oracle RAC10gR2 or 11g
  • /etc/security/limits.conf as follows or similar to:
    
*          soft     nproc          2047
*          hard     nproc          16384
*          soft     nofile         1024
*          hard     nofile         65536
*          soft     stack          10240
*          hard     stack          32768

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