Messages in this thread | | | Subject | Re: swap and 2.4.20 | Date | Sun, 05 Oct 2003 16:07:33 -0400 | From | Hacksaw <> |
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So it's accurate to say that you can turn of swapping (by having no swap space), but you can't turn off paging.
One upshot of this is that the disk your root is on must be always available.
I have a real interest in this, because I have a consulting client who uses Linux on an embedded product. They were testing the product in a rough situation, and the CF card that they used to boot the system from came out of the slot. However, the machine kept running.
I would assume that since its programs were loaded, and it was unlikely to be starting new ones, it was just happily working, and would have until some random event would have caused it to try and do some paging. I assume that paging out wouldn't hurt anything, because that would just be flipping a bit in a table somewhere.
Does this mean that you could replace a library out from under a running but largely paged out app, and have it suddenly switch to the new library? -- The audience is mother to the music. http://www.hacksaw.org -- http://www.privatecircus.com -- KB1FVD
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