[SOLVED]How to patch the kernel? And other questions

Like the same user who started this thread I'm suffering from hibernation resuming troubles using kernel 2.6.38. In that thread was posted a soluttion that involves patching the kernel.
The patch to apply is this:
http://git.kernel.org/?p=linux/kernel/g … e3e9fc8684
Waiting for the bug to be corrected and a new version supplied is not an option, because this laptop is my main computer and I heavly rely on hibernation.
Here's my trouble now. I don't know if it is possible to patch without recompiling the whole kernel, or it has to be compiled with that patch applied. I have seen the archlinux's wiki guide about compiling the kernel, but found nothing about applying patches (maybe I didn't searched with enought depth).
In case there is needed a full compilation, should I use the vanilla kernel, the Arch Linux one or any of the AUR ones (I said AUR because they're the first that came to my mind)? Should i expect a performance gain with this (apart from fixing the hibernation bug)?
Maybe i'm just doing a bunch of dumb questions, and the only thing I need is to search deeply on the wiki. In that case, please tell me. If not, I rather get some answers around kernel patching and / or compiling questions.
Edit: In addittion, it is possible that all this questions are just newbie ones, I don't know, but as I am willing to learn from this I will appreciate any info or documentation about it.
Thank you.
Last edited by ethail (2011-04-12 06:30:48)

From the source tree (/usr/src/linux-whatever) execute
patch -p1 < /path/to/fix.patch
then recompile kernel from the source tree.
Basically that consists of executing the following commands from the source tree:
make menuconfig
make
make modules_install
cp -v System.map /boot/System.map-CUSTOM
cp -v arch/x86/boot/bzImage /boot/vmlinuz-CUSTOM
mkinitcpio -k 2.6.38-CUSTOM -g /boot/kernel-CUSTOM.img
and you need to add menu entry in /boot/grub/menu.lst
-k 2.6.38-CUSTOM should corespond to /lib/modules/2.6.38-CUSTOM (replace 2.6.38-CUSTOM with the name of your module directory, name depends on the kernel version and suffix that you gave in menuconfig). Regarding kernel configuration in menuconfig - I can't help you, you could use arch stock kernel config (zcat /proc/config.gz > /usr/src/linux-whatever/.config)
I do these kind of things this way - maybe someone else have a more elegant solution.

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[SOLVED]How to patch a kernel using PKGBUILD

Hello guys,
Sorry if my question looks stupid but I'm trying to compile my first kernel following this wiki page and I wonder how to apply a patchset...
The patchset to apply is the ck one and I've downloaded the patch file from http://ck.kolivas.org/patches/3.0/3.3/3 … .3-ck1.bz2 and placed the patch itself at the root of my PKGBUILD folder.
At my first attempt to run makepkg, I could see several 'found xxx.patch' (the other patches which were already in the abs tree) but not my ck patch.
After taking a look in my PKGBUILD file I modified the source instruction as follow to include my pach:
source=("http://www.kernel.org/pub/linux/kernel/v3.x/linux-3.3.tar.xz"
"http://www.kernel.org/pub/linux/kernel/ … pkgver}.xz"
# the main kernel config files
'config' 'config.x86_64'
# standard config files for mkinitcpio ramdisk
"${pkgname}.preset"
'fix-acerhdf-1810T-bios.patch'
'change-default-console-loglevel.patch'
'i915-fix-ghost-tv-output.patch'
'ext4-options.patch'
'patch-3.3-ck1')
Now when I run makepkg, it founds my patch but right after I get a md5 cheksum error:
-> Found config
-> Found config.x86_64
-> Found linux-custom.preset
-> Found fix-acerhdf-1810T-bios.patch
-> Found change-default-console-loglevel.patch
-> Found i915-fix-ghost-tv-output.patch
-> Found ext4-options.patch
-> Found patch-3.3-ck1
==> ERROR: Integrity checks (md5) differ in size from the source array.
[sclarckone@archLaptop linux]$
I could disable the checksum in makepkg.conf but maybe I'm doing it wrong so I'd like to know the clean way to do it ;-)
Thanks for your help.
Last edited by sclarckone (2012-04-18 19:42:01)

makepkg -g >> PKGBUILD will do this automatically for ya. FYI, there is a linux-ck package in the AUR you can use as a model if you wish.

[SOLVED]How to load the kernel?

Hi all
First I should say that I found the same as my question in the internet bot there were no answer can solve my problem too.
I just installed my Arch on my new laptop and I can say I am new.
after all installations and reboot I have grub menu but when I want to boot I face with below error
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How can I get rid of this error?
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[SOLVED] How do I patch the kernel?

EDIT (again): Doesn't seem like the patch is needed anymore. 3.3.1 kernel from the repos seems identical to my custom kernel (also 3.3.1).
EDIT: The patches are for an older kernel but I was able to apply them manually.
Hello. I'm trying to patch the kernel using the patch found on this page: http://lists.freedesktop.org/archives/i … 09584.html
Now, I don't know much about patching but the patch in that post looks more like the program output of several diff commands. How do I format this to create a valid .patch file?
Last edited by Splooshie123 (2012-04-10 04:52:40)

To get back to my original question, making a patch out of what was in that mailing list post:
Does this look ok?
drivers/gpu/drm/i915/i915_drv.c | 4 ++++
drivers/gpu/drm/i915/i915_drv.h | 1 +
drivers/gpu/drm/i915/intel_display.c | 34 +++++++++++++++++++++-------------
3 files changed, 26 insertions(+), 13 deletions(-)
diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c
index 004880aa3a948669b8b4e23d9ad73d132cff81d0..1d88f059a27321ecb681e2b7927bb69029fcb49a 100644
--- a/drivers/gpu/drm/i915/i915_drv.c
+++ b/drivers/gpu/drm/i915/i915_drv.c
@@ -49,6 +49,10 @@ module_param_named(powersave, i915_powersave, int, 0600);
unsigned int i915_lvds_fixed = 1;
module_param_named(lvds_fixed, i915_lvds_fixed, int, 0600);
+unsigned int i915_lvds_channels = 0;
+module_param_named(lvds_channels, i915_lvds_channels, int, 0600);
+MODULE_PARM_DESC(lvds_channels, "LVDS channels in use: 0=(default) probe hardware 1=single 2=dual");
+
unsigned int i915_lvds_downclock = 0;
module_param_named(lvds_downclock, i915_lvds_downclock, int, 0400);
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index 3fa8681459aa596e12e885568e5b48f0c9a60719..a6aab43e5f39f2d5b92a69a284bf8f72a254ea7c 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -886,6 +886,7 @@ extern int i915_max_ioctl;
extern unsigned int i915_fbpercrtc;
extern unsigned int i915_powersave;
extern unsigned int i915_lvds_fixed;
+extern unsigned int i915_lvds_channels;
extern unsigned int i915_lvds_downclock;
extern unsigned int i915_lvds_24bit;
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 09f57f29c30c371c213944be473090a780a287db..4dc91400edd8935be45a229cf91292339bca0ce8 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -642,6 +642,20 @@ static const intel_limit_t intel_limits_ironlake_display_port = {
.find_pll = intel_find_pll_ironlake_dp,
+static int intel_is_dual_channel_mode(struct drm_crtc *crtc)
+{
+ struct drm_device *dev = crtc->dev;
+ struct drm_i915_private *dev_priv = dev->dev_private;
+ if (i915_lvds_channels) {
+ /* User has specified desired channel mode */
+ return (i915_lvds_channels == 2);
+ }
+
+ /* User has not specified mode so let's see
+ what the hardware is doing. */
+ return ((I915_READ(LVDS) & LVDS_CLKB_POWER_MASK) == LVDS_CLKB_POWER_UP);
+}
+
static const intel_limit_t *intel_ironlake_limit(struct drm_crtc *crtc)
struct drm_device *dev = crtc->dev;
@@ -653,8 +667,7 @@ static const intel_limit_t *intel_ironlake_limit(struct drm_crtc *crtc)
if (dev_priv->lvds_use_ssc && dev_priv->lvds_ssc_freq == 100)
refclk = 100;
- if ((I915_READ(PCH_LVDS) & LVDS_CLKB_POWER_MASK) ==
- LVDS_CLKB_POWER_UP) {
+ if (intel_is_dual_channel_mode(crtc)) {
/* LVDS dual channel */
if (refclk == 100)
limit = &intel_limits_ironlake_dual_lvds_100m;
@@ -677,18 +690,16 @@ static const intel_limit_t *intel_ironlake_limit(struct drm_crtc *crtc)
static const intel_limit_t *intel_g4x_limit(struct drm_crtc *crtc)
- struct drm_device *dev = crtc->dev;
- struct drm_i915_private *dev_priv = dev->dev_private;
const intel_limit_t *limit;
if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) {
- if ((I915_READ(LVDS) & LVDS_CLKB_POWER_MASK) ==
- LVDS_CLKB_POWER_UP)
+ if (intel_is_dual_channel_mode(crtc)) {
/* LVDS with dual channel */
limit = &intel_limits_g4x_dual_channel_lvds;
- else
- /* LVDS with dual channel */
+ } else {
+ /* LVDS with single channel */
limit = &intel_limits_g4x_single_channel_lvds;
+ }
} else if (intel_pipe_has_type(crtc, INTEL_OUTPUT_HDMI) ||
intel_pipe_has_type(crtc, INTEL_OUTPUT_ANALOG)) {
limit = &intel_limits_g4x_hdmi;
@@ -821,8 +832,7 @@ intel_find_best_PLL(const intel_limit_t *limit, struct drm_crtc *crtc,
* reliably set up different single/dual channel state, if we
* even can.
- if ((I915_READ(LVDS) & LVDS_CLKB_POWER_MASK) ==
- LVDS_CLKB_POWER_UP)
+ if (intel_is_dual_channel_mode(crtc))
clock.p2 = limit->p2.p2_fast;
else
clock.p2 = limit->p2.p2_slow;
@@ -871,7 +881,6 @@ intel_g4x_find_best_PLL(const intel_limit_t *limit, struct drm_crtc *crtc,
int target, int refclk, intel_clock_t *best_clock)
struct drm_device *dev = crtc->dev;
- struct drm_i915_private *dev_priv = dev->dev_private;
intel_clock_t clock;
int max_n;
bool found;
@@ -886,8 +895,7 @@ intel_g4x_find_best_PLL(const intel_limit_t *limit, struct drm_crtc *crtc,
lvds_reg = PCH_LVDS;
else
lvds_reg = LVDS;
- if ((I915_READ(lvds_reg) & LVDS_CLKB_POWER_MASK) ==
- LVDS_CLKB_POWER_UP)
+ if (intel_is_dual_channel_mode(crtc))
clock.p2 = limit->p2.p2_fast;
else
clock.p2 = limit->p2.p2_slow;

How could i get the kernel and user cpu usage for each process

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Visakh
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How to get the lock and block occured for the full day

Hi,
How to monitor the lock and blocks occurred for the full day? i need to get it by end of the day. is there any script for this?

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How to monitor the lock and blocks occurred for the full day? i need to get it by end of the day. is there any script for this?
Why would you like to collect information about locks and let me tell you, you cannot collect information about ALL locks which were taken and even thinking about it is pointless.
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[SOLVED]How to patch the kernel? And other questions

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