Richard> The kernel stack, at least for ix86, is only one, set
Richard> upon startup at 8192 bytes above a label called
Richard> init_task_unit. The kernel must have a separate stack
Richard> and, contrary to what I've been reading on this list, it
Richard> can't have more kernel stacks than CPUs and, I don't see
Richard> a separate stack allocated for different CPUs.
This is total nonsense. Please don't confuse matters by spreading
misinformation like this. Every task has a separate (8K) kernel
stack. Look at the implementation of do_fork() and in particular
alloc_task_struct().
If there were only one kernel stack, what do you think would happen if
a process went to sleep in kernel code?
- Roland
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This archive was generated by hypermail 2b29 : Wed May 07 2003 - 22:00:32 EST