Hi I'm currently trying to reduce the dump time, and then I try to dump only pages that are currently use by the system. In page structure I found a flag, I was thinking a good one for this purpose: atomic_t count; /* Usage count, see below. */ But after taking only pages where count != 0, something was broken, I was not able to look at proc structure, and several things..... If a do a "full" dump I'm still able to look at what I need, so this page.count is not accurate for this purpose. So does't exist a good way to know if a page is in use or not ? thanks. -- Vidal Bruno, (770-4271) SSD-HA Team, HP-UX & LINUX Support bruno_vidal@admin.france.hp.com