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Adding Virtual Swap Space

If your system is experiencing processes being denied stack growth or new processes due to a stated lack of swap space, and you believe that there is adequate physical space, add the following entry to your /etc/fstab file:

/usr/swap swap swap pri=4,vlength=204800 0 0

Then give the command:

mkfile -v 0b /usr/swap

The file (/usr/swap) will be zero-length, so you have added only virtual swap space, and no real swap area. Your kernel should then allow more processes to execute. However, when an attempt is made to access more than the system limit, IRIX swaps the largest running program out of memory.


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