Hello, Please answer on the list, and not to me directly. Anurag Verma wrote:
Since kernel space is 1GB so why only 896 MB . where the 128MB is going for?
I think it's some space for the bounce buffers. Maybe other things, but I don't know what exactly.
Another thing is, can i allocate only 896MB from kmalloc at the max.
No, you can't. First of all, because on the 896MB, a couple of megabytes is used to store the kernel and its data structures. And then, because kmalloc() only allows you to allocate 128 Kb at once.
Again, I *strongly* advise you to read Mel Gorman's book, where such questions are answered in detail.
Sincerly, Thomas -- Thomas Petazzoni thomas.petazzoni@xxxxxxxx -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ FAQ: http://kernelnewbies.org/faq/
