Messages in this thread | | | Date | Mon, 09 Dec 2002 14:09:01 -0800 | From | Dave Hansen <> | Subject | [PATCH] (0/4) stack updates for x86 |
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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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