Hi, If you remember, i started with some linux MM documentation. Well, i was kinda busy and could not continue. now iam free and am continuing the work. As a start i have converted the existing docs into latex and made them available at http://mmdoc.sourceforge.net For the documentation i need some clarification and if possible please say weather iam correct when i say these things. 1. The memory in linux is maintained as pages of 4k. 2. The linux memory is split into various zones (link from riks "zone based allocator" doc). 3. The buddy allocator is the main memory allocator that serves memory pages. The buddy system keeps in mind about the various zones. This means that the buddy allocator is a zoned buddy allocator. 4. The slab allocator is used to allocate memory inside the kernel. kmalloc, kfree. Memory got by this allocator is physicaly contigoues. 5. The vmalloc alloctor (ok no such thing as a vmalloc allocator but it helps to understand) allocates non-contiguoues kernel memory. 6. user-space memory is allocated usong the sys_brk() which in-turn uses the slab allocator. iam a bit confused about the user space memory and sys_brk. can some one please make me clear? If what i say is correct i can write more in detail about them and add to my documentation. Otherwise it means i have to do more code reading :) Cheers, Mohan S __________________________________________________ Do You Yahoo!? Yahoo! Finance - Get real-time stock quotes http://finance.yahoo.com -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ FAQ: http://kernelnewbies.org/faq/
