[PATCH] (0/4) stack updates for x86

Dave Hansen (haveblue@us.ibm.com)
Mon, 09 Dec 2002 14:09:01 -0800

The kernel currently uses an 8k stack, per task. Here is the
infrastructure needed to allow us to halve that. The original work
was by Ben LaHaise. I broke it out into several patches and updated
it for the current kernels.

A-thread_info_cleanup-2.5.50+bk-5.patch
Gets asm-i386/thread_info.h ready for the irqstack and
overflow detection patches

B-interrupt_stacks-2.5.50+bk-5.patch
Have special stacks for use in interrupts.

C-stack_usage_check-2.5.50+bk-5.patch
Check for stack overflows on entry to each funtion. Use gcc's
-p profiling feature to do it.

D-4k-stack-2.5.50+bk-5.patch
make a config option to turn on 4k stacks. (there appears to
be a problem with this right now).

-- 
Dave Hansen
haveblue@us.ibm.com


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