Hi, Please help me to understand the issue with a swap page. this is in 2.4 kernel. An anonymous page of a process is added to the swap cache using add_to_swap_cache() and the page table entry is set to the swap entry. ( try_to_swap_out()). And at sometime later in shrink_cache(), that page is written to the swap disk using swap_writepage(). But in swap_writepage(), the page is first tested to see if it is an exclusive swap page ie the page is owned by only one process and it is removed from the swap cache without writing to the swap disk. Please correct if I have misunderstood over here. Now the page is no more in the swap cache and if the process faults on this page and it tries to get this page from the swap cache which is no more in the cache now. I definitely am losing a link over here. Can you please explain me what correctly happens during swapping out of a page? Thanks, Raghu. -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ FAQ: http://kernelnewbies.org/faq/
