Not able to execute commands and get the error "Cannot allocate memory"

Solution Unverified - Updated -

Issue

The system has enough memory, but when trying to execute commands, get the error "Cannot allocate memory"

-bash-4.1# free -g
             total       used       free     shared    buffers     cached
Mem:            94         43         51          0          0          0
-/+ buffers/cache:         42         51
Swap:           19          0         19

-bash-4.1# uname -a
-bash: fork: Cannot allocate memory

Environment

  • Red Hat Enterprise Linux 6

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