linux-kernel - Auto reboot when CPU at full load with X86_ACPI

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Date:	Mon, 5 Nov 2012 11:40:28 +0800
From:	Drunkard Zhang <gongfan193@...il.com>
To:	linux-kernel <linux-kernel@...r.kernel.org>
Subject: Auto reboot when CPU at full load with X86_ACPI_CPUFREQ

I'm using Intel Xeon X5570 x2 with Asus Z8PE-D18, and experiencing
auto reboot when CPU full loaded for minutes, like building kernel
with "make -j17". After a lot of bisecting of config file, I found the
option leads to the reboot: X86_ACPI_CPUFREQ, both configed
X86_ACPI_CPUFREQ as a module or built in will lead to reboot.

Config file finally bisected appended, config-3.7.0-rc3+-bad is the
one leads to reboot, config-3.7.0-rc3+-ok works OK. Hardware info also
appended.

I think it is a bug, anything I can do? When the bug triggered, the
screen blanked immediately, any advice for me to debug? Happy to match
to code :-)

Tested kernel version: 3.1.x, 3.3.x, 3.5.x, 3.6.x, 3.7*, they are all affected.

Download attachment "config-3.7.0-rc3+-bad" of type "application/octet-stream" (72177 bytes)

Download attachment "config-3.7.0-rc3+-ok" of type "application/octet-stream" (72147 bytes)

Download attachment "hardware-Asus_Z8PE-D18-Xeon5570" of type "application/octet-stream" (134386 bytes)