Troubleshooting paging space
The most common problem regarding paging space is caused by running out of allocated space.
The total amount of paging space is often determined by trial and error. One commonly used guideline is to double the RAM size and use that figure as a paging space target. If paging space runs low, processes can be lost, and if paging space runs out, the system can panic. The following signal and error information can help you monitor and resolve or prevent paging space problems.
Processes that dynamically allocate memory can ensure that sufficient paging space exists by monitoring the paging-space levels with the psdanger subroutine or by using special allocation routines. You can use the disclaim subroutine to prevent processes from ending when the paging-space kill level is reached. To do this, define a signal handler for the SIGDANGER signal and release memory and paging-space resources allocated in their data and stack areas and in shared memory segments.
INIT: Paging space is low!
You are close to running out of paging space. You may want to save your documents because this program (and possibly the operating system) could terminate without future warning when the paging space fills up.