http://bugzilla.kernel.org/show_bug.cgi?id=13710
ykzhao <yakui.z...@intel.com> changed:
What |Removed |Added
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CC| |yakui.z...@intel.com
--- Comment #1 from ykzhao <yakui.z...@intel.com> 2009-07-06 01:11:24 ---
Hi, Alexey
From the dmesg log it seems that the box can be resumed when there is no
boot option of "acpi_sleep=". But there is no video. Right?
If so, it seems that this is a graphics issue instead of an ACPI issue.
Will you please do the following test to double check it? (Don't add the
boot option of: "test_suspend=", "acpi_sleep="
a. kill the process using the /proc/acpi/event
b. assure that the i915 driver is loaded(If it is compiled as built-in
kernel, please skip this step)
c. dmesg >dmesg_before; echo mem > /sys/power/state; dmesg >dmesg_after;
sync;
d. press the power button and see whether the box can be resumed.
e. reboot the system and see whether there exists the file of dmesg_after.
If it exists, it is a graphics issue. Please file a new bug in
https://bugs.freedesktop.org/
At the same time from the dmesg log it seems that there exist two warning
backtrace.
1. PM: resume devices took 5.784 seconds
[ 11.621574] ------------[ cut here ]------------
[ 11.621579] WARNING: at kernel/power/suspend_test.c:52
suspend_test_finish+0x7c/0x80()
[ 11.621580] Hardware name:
This is caused by that it will take more than five seconds to resume the
device on this box. This is related with the following commit:
>commit a9d7052363a6e06bb623ed1876c56c7ca5b2c6d8
>Author: Rafael J. Wysocki <r...@sisk.pl>
>Date: Wed Jun 10 01:27:12 2009 +0200
PM: Separate suspend to RAM functionality from core
2. Corrupted low memory at ffff880000004200 (4200 phys) = 00420301
[ 60.816163] ------------[ cut here ]------------
[ 60.816169] WARNING: at arch/x86/kernel/check.c:134
It seems that this is related with the hardware issue. After the
CHECK_CORRUPTION is enabled in kernel configuration, it will check the possible
memory corruption.When the memory corruption is detected, it will complain the
above warning message.
Thanks.
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