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authorMitsuo Hayasaka <mitsuo.hayasaka.hu@hitachi.com>2011-11-29 15:08:29 +0900
committerIngo Molnar <mingo@elte.hu>2011-12-05 11:37:45 +0100
commit37fe6a42b3433b79a159ceb06a94cd1ef00e279d (patch)
tree4852070d6782545e41b0fbd7f80e1d1414917c6b /drivers/of
parent69682b625a043b567873e6cda397969b502f0054 (diff)
x86: Check stack overflow in detail
Currently, only kernel stack is checked for the overflow, which is not sufficient for systems that need a high reliability. To enhance it, it is required to check the IRQ and exception stacks, as well. This patch checks all the stack types and will cause messages of stacks in detail when free stack space drops below a certain limit except user stack. Signed-off-by: Mitsuo Hayasaka <mitsuo.hayasaka.hu@hitachi.com> Cc: yrl.pp-manager.tt@hitachi.com Cc: Randy Dunlap <rdunlap@xenotime.net> Link: http://lkml.kernel.org/r/20111129060829.11076.51733.stgit@ltc219.sdl.hitachi.co.jp Signed-off-by: Ingo Molnar <mingo@elte.hu> Cc: "H. Peter Anvin" <hpa@zytor.com>
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