On 5/15/05, Dinesh Ahuja <mdlinux7@xxxxxxxxxxx> wrote: > Hi , > > Please clarify me on below point : > We say that kernel space is very much limited around > 8KB. Each Process(task) has a Kernel stack(different from user mode stack) which is used when running in Kernel Mode ie during system calls. It is Fixed 8K or even 4k in 2.6. > Does all the running processes share this stack . No, Each task have their Own. > Sharing wait queues will be difficult if the kernel > space is 8KB for all the ready processes because then > the no of wait_queue_t elements which can be added > will be limited. I cant understand what are you talking about. Only the task's kernel stack is 8k not Whole kernel memory. N.B: These are very basic things. So i would recommend you read some books on Operating Systems. Linux Kernel Development by Robert Love. regards Manish Regmi -- --------------------------------------------------------- "Owning a hammer doesn't make one an architect" -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ FAQ: http://kernelnewbies.org/faq/
