Please consider the following SRU to maverick. The patch to hibernate code
helps to solve failure to hibernate issues seen on some lenovo laptops.
I have already proposed this patch to stable@kernel.org.
SRU JUSTIFICATION
---------------------------
CAUSE
-----------
[ 839.784885] PM: Creating hibernation image:
[ 839.788014] PM: Need to copy 120225 pages
[ 839.788014] PM: Normal pages needed: 118714 + 1024, available pages: 118002
[ 839.788014] PM: Not enough free memory
[ 839.788014] PM: Error -12 creating hibernation image
FIX
----
Upstream patch reduces the image size to it equal 2/5 of the total RAM size.
This combined with shutdown hibernate mode fixes this issue.
TEST
------
This upstream patch was tested on a lenovo x120e by me,
please see comments above for test results and details.
The following changes since commit 98e5bbf03976d01a116c000ec141ec7b5325f759:
UBUNTU: Ubuntu-2.6.35-28.50 (2011-03-13 09:54:14 -0700)
are available in the git repository at:
git://kernel.ubuntu.com/manjo/ubuntu-maverick.git lp737208
Rafael J. Wysocki (2):
PM / Hibernate: Improve comments in hibernate_preallocate_memory()
PM / Hibernate: Make default image size depend on total RAM size
Documentation/power/interface.txt | 2 +-
kernel/power/main.c | 1 +
kernel/power/power.h | 9 ++++++++-
kernel/power/snapshot.c | 13 ++++++++++---
4 files changed, 20 insertions(+), 5 deletions(-)
Please consider the following SRU to maverick. The patch to hibernate code helps to solve failure to hibernate issues seen on some lenovo laptops. I have already proposed this patch to stable@kernel.org. SRU JUSTIFICATION --------------------------- CAUSE ----------- [ 839.784885] PM: Creating hibernation image: [ 839.788014] PM: Need to copy 120225 pages [ 839.788014] PM: Normal pages needed: 118714 + 1024, available pages: 118002 [ 839.788014] PM: Not enough free memory [ 839.788014] PM: Error -12 creating hibernation image FIX ---- Upstream patch reduces the image size to it equal 2/5 of the total RAM size. This combined with shutdown hibernate mode fixes this issue. TEST ------ This upstream patch was tested on a lenovo x120e by me, please see comments above for test results and details. The following changes since commit 98e5bbf03976d01a116c000ec141ec7b5325f759: UBUNTU: Ubuntu-2.6.35-28.50 (2011-03-13 09:54:14 -0700) are available in the git repository at: git://kernel.ubuntu.com/manjo/ubuntu-maverick.git lp737208 Rafael J. Wysocki (2): PM / Hibernate: Improve comments in hibernate_preallocate_memory() PM / Hibernate: Make default image size depend on total RAM size Documentation/power/interface.txt | 2 +- kernel/power/main.c | 1 + kernel/power/power.h | 9 ++++++++- kernel/power/snapshot.c | 13 ++++++++++--- 4 files changed, 20 insertions(+), 5 deletions(-)