I don't think swap is active (newbie note, how do I check?), and this seems too frequent and too small to be swapping memory. I am running in console mode (don't need xwindows for a 'headless' network box) and have 16MB of memory (a 32MB 4k refresh SIMM).
I ran lsof, but I don't think I am any closer to finding the problem (perhaps when I run lsof, the file that keeps getting accessed is temporarily not accessed?). Is there a utility that does real time monitoring of file read/writes?
On a side note, is there any way to mount the 352K "root" partition of the flash SIMM once I have mounted an IDE drive as my root file system? I don't see a /dev/mtdblock entry in /dev, so mount returns the message "mount: special device /dev/mtdblock does not exist" when I try mount /dev/mtdblock -t cramfs /flash
Thanks for the help.