From: Mitsuo Hayasaka Date: Tue, 29 Nov 2011 06:08:36 +0000 (+0900) Subject: x86: Panic on detection of stack overflow X-Git-Tag: v3.3-rc1~94^2~10 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=55af77969fbd7a841838220ea2287432e0da8ae5;p=pandora-kernel.git x86: Panic on detection of stack overflow Currently, messages are just output on the detection of stack overflow, which is not sufficient for systems that need a high reliability. This is because in general the overflow may corrupt data, and the additional corruption may occur due to reading them unless systems stop. This patch adds the sysctl parameter kernel.panic_on_stackoverflow and causes a panic when detecting the overflows of kernel, IRQ and exception stacks except user stack according to the parameter. It is disabled by default. Signed-off-by: Mitsuo Hayasaka Cc: yrl.pp-manager.tt@hitachi.com Cc: Randy Dunlap Cc: "H. Peter Anvin" Link: http://lkml.kernel.org/r/20111129060836.11076.12323.stgit@ltc219.sdl.hitachi.co.jp Signed-off-by: Ingo Molnar --- Reading git-diff-tree failed