From: Dave Hansen <haveblue@us.ibm.com>
To: benh@kernel.crashing.org
Cc: Arjan van de Ven <arjanv@redhat.com>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: [PATCH] (0/4) stack updates for x86
Date: Mon, 09 Dec 2002 14:09:01 -0800 [thread overview]
Message-ID: <3DF5147D.9060708@us.ibm.com> (raw)
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
reply other threads:[~2002-12-09 22:03 UTC|newest]
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