On Wed, Aug 17, 2005 at 12:32:11 +0000, Vincenzo Mallozzi wrote: > I've read somewhere that memory allocated in kernel space by means of > kmalloc/vmalloc instructions cannot be swapped out. Right, it can't. > Now, I've a problem with memory usage as, when I execute my kernel module, the > amount of memory I need is greater than the system memory (384 MB RAM). You have obviously done something wrong. Can't you just keep the data in *userland*? It would make things a *lot* easier. > I've also expanded swap memory to include all of the data structures my module > creates (up to 3.7 GB). And did you also teach the module to swap the data? > Is there a way to monitor the memory usage and, when memory is almost full, > force the flushing of unused parts of it in the swap partition? There is the function that does the actual swapping for user memory, both file backed and anonymous. I think it's called page_launder, or at least that that symbol should point you to the right part of the code. > I know this decrease system's performance but I don't worry about this. Again, why do the data need to be in kernel. I am not saying there is no reason for it, but could you explain what you are doing a bit? There may be another solution. ------------------------------------------------------------------------------- Jan 'Bulb' Hudec <bulb@xxxxxx>
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