Hi,
I'm developing kernel modules right now, and the build times are starting to get under my skin. As a side effect i'm taking way too many "coffee" breaks during builds.
So i was looking for a way to build only the stuffs i need for my platform. Chapter 7 and 8 of "linux kernel in a nutshell" gave a good detail of how to do that by hand. Its a good read : http://www.kroah.com/lkn/
But Although i understand the stuffs, this is still a lot of tweaks to make that work.
2.6.32 and later kernels added a new target "make localmodconfig". which scans through "lsmod" and change the .config appropriately. So i thought i found my "automation". But this perl script has some problem too.
This thread describes the problems : https://bbs.archlinux.org/viewtopic.php?pid=845113
There was also a proposed solution which apparently worked for others , is to run the script directly instead of using make's target.
Although for me, make localmodconfig does not work at all. its because of the following :
$make clean $make mrproper $cp /boo/config-'uname -r' .config $make localmodconfig
and it haults with
vboxguest config not found!! nf_defrag_ipv6 config not found!! vboxsf config not found!! vboxvideo config not found!!
The thing is my kernel development environment is inside virtualbox. These vbox modules were installed when i chose to install "virtualbox guest addtion".
And the netfilter module might be a Distribution specific module(Lot of netfilter modules are not part of the mainline kernel, so its not a shock to me), which is not included in mainline kernel.
Now the workaround this obviously unloading these module and trying again. But I'm thinking if there is patch for the "streamline_config.pl" which will enable the user to exclude certain modules if s/he wants. Problem is i have "zero" knowledge about perl and i like it that way.
So my problems in "nutshell"
1) Patching streamline_config.pl so i can give a list of module name as argument which it will exclude from processing the config file.
2) I've tried to run the script by myself. But running it directly fails with a error.
[root@kernel-host-rh6 linux-2.6]# sh scripts/kconfig/streamline_config.pl scripts/kconfig/streamline_config.pl: line 45: my: command not found scripts/kconfig/streamline_config.pl: line 47: my: command not found scripts/kconfig/streamline_config.pl: line 48: chomp: command not found scripts/kconfig/streamline_config.pl: line 50: syntax error near unexpected token `(' scripts/kconfig/streamline_config.pl: line 50: `my @searchconfigs = ('
Again my "zero" knowledge about perl does not helping my case.
Additional info:
I have faced the same thing in 2.6.32, 2.6.33, 2.6.35, 3.4, 3.4.rc1 .....(I constantly switch version for various reasons, everywhere the problem is same)
You can access the script from kernel.org gitweb: http://git.kernel.org/?p=linux/kernel/git/stable/linux-stable.git;a=blob;f=s...
Its from 3.4.0. `git log --stat scripts/kconfig/streamline_config.pl` shows some activity recently on this file. But my problem persists.
3) Is there any way i can get the "Centos specific" patches in "plain patch" format? That means i dont wanna do things in src-rpm way. If the patches are available in normal patch format i can keep everything tidy in my kernel git tree.
On Fri, Jul 13, 2012 at 6:29 PM, Aft nix aftnix@gmail.com wrote:
Hi,
I'm developing kernel modules right now, and the build times are starting to get under my skin. As a side effect i'm taking way too many "coffee" breaks during builds.
So i was looking for a way to build only the stuffs i need for my platform. Chapter 7 and 8 of "linux kernel in a nutshell" gave a good detail of how to do that by hand. Its a good read : http://www.kroah.com/lkn/
But Although i understand the stuffs, this is still a lot of tweaks to make that work.
2.6.32 and later kernels added a new target "make localmodconfig". which scans through "lsmod" and change the .config appropriately. So i thought i found my "automation". But this perl script has some problem too.
This thread describes the problems : https://bbs.archlinux.org/viewtopic.php?pid=845113
There was also a proposed solution which apparently worked for others , is to run the script directly instead of using make's target.
Although for me, make localmodconfig does not work at all. its because of the following :
$make clean $make mrproper $cp /boo/config-'uname -r' .config $make localmodconfigand it haults with
vboxguest config not found!! nf_defrag_ipv6 config not found!! vboxsf config not found!! vboxvideo config not found!!The thing is my kernel development environment is inside virtualbox. These vbox modules were installed when i chose to install "virtualbox guest addtion".
And the netfilter module might be a Distribution specific module(Lot of netfilter modules are not part of the mainline kernel, so its not a shock to me), which is not included in mainline kernel.
Now the workaround this obviously unloading these module and trying again. But I'm thinking if there is patch for the "streamline_config.pl" which will enable the user to exclude certain modules if s/he wants. Problem is i have "zero" knowledge about perl and i like it that way.
So my problems in "nutshell"
- Patching streamline_config.pl so i can give a list of module name
as argument which it will exclude from processing the config file.
- I've tried to run the script by myself. But running it directly
fails with a error.
[root@kernel-host-rh6 linux-2.6]# sh scripts/kconfig/streamline_config.pl scripts/kconfig/streamline_config.pl: line 45: my: command not found scripts/kconfig/streamline_config.pl: line 47: my: command not found scripts/kconfig/streamline_config.pl: line 48: chomp: command not found scripts/kconfig/streamline_config.pl: line 50: syntax error nearunexpected token `(' scripts/kconfig/streamline_config.pl: line 50: `my @searchconfigs = ('
Again my "zero" knowledge about perl does not helping my case.
Additional info:
I have faced the same thing in 2.6.32, 2.6.33, 2.6.35, 3.4, 3.4.rc1 .....(I constantly switch version for various reasons, everywhere the problem is same)
You can access the script from kernel.org gitweb: http://git.kernel.org/?p=linux/kernel/git/stable/linux-stable.git;a=blob;f=s...
Its from 3.4.0. `git log --stat scripts/kconfig/streamline_config.pl` shows some activity recently on this file. But my problem persists.
- Is there any way i can get the "Centos specific" patches in "plain
patch" format? That means i dont wanna do things in src-rpm way. If the patches are available in normal patch format i can keep everything tidy in my kernel git tree. -- -aft
You can ignore the "perl script" not running thing. I was trying trying run a perl script with "sh" in front of it. How horribly dumb i've been today :) cheers.
On Fri, Jul 13, 2012 at 5:29 AM, Aft nix aftnix@gmail.com wrote:
Hi,
I'm developing kernel modules right now, and the build times are starting to get under my skin. As a side effect i'm taking way too many "coffee" breaks during builds.
(snip)
- Is there any way i can get the "Centos specific" patches in "plain
patch" format? That means i dont wanna do things in src-rpm way. If the patches are available in normal patch format i can keep everything tidy in my kernel git tree.
The CentOS way of "Build Your Own Kernel Modules" is described in this CentOS wiki article:
http://wiki.centos.org/HowTos/BuildingKernelModules
I suggest you try method 1 first to see if you can build your module. Once confirmed, you may want to proceed to method 3 to build a kABI-compatible module.
You can ask further questions about kmods either here, or better yet, on the ELRepo's mailing list. ELRepo ( http://elrepo.org ) builds a number of kernel modules for RHEL/CentOS/SL.
Akemi
On Fri, Jul 13, 2012 at 7:34 PM, Akemi Yagi amyagi@gmail.com wrote:
On Fri, Jul 13, 2012 at 5:29 AM, Aft nix aftnix@gmail.com wrote:
Hi,
I'm developing kernel modules right now, and the build times are starting to get under my skin. As a side effect i'm taking way too many "coffee" breaks during builds.
(snip)
- Is there any way i can get the "Centos specific" patches in "plain
patch" format? That means i dont wanna do things in src-rpm way. If the patches are available in normal patch format i can keep everything tidy in my kernel git tree.
The CentOS way of "Build Your Own Kernel Modules" is described in this CentOS wiki article:
http://wiki.centos.org/HowTos/BuildingKernelModules
I suggest you try method 1 first to see if you can build your module. Once confirmed, you may want to proceed to method 3 to build a kABI-compatible module.
You can ask further questions about kmods either here, or better yet, on the ELRepo's mailing list. ELRepo ( http://elrepo.org ) builds a number of kernel modules for RHEL/CentOS/SL.
Akemi
So bottom line is, i can't get the patches other than src-rpms?
I better learn this thing, i guess. cheers. _______________________________________________
CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Aft nix wrote:
On Fri, Jul 13, 2012 at 7:34 PM, Akemi Yagi amyagi@gmail.com wrote:
On Fri, Jul 13, 2012 at 5:29 AM, Aft nix aftnix@gmail.com wrote:
Hi,
I'm developing kernel modules right now, and the build times are starting to get under my skin. As a side effect i'm taking way too many "coffee" breaks during builds.
(snip)
- Is there any way i can get the "Centos specific" patches in "plain
patch" format? That means i dont wanna do things in src-rpm way. If the patches are available in normal patch format i can keep everything tidy in my kernel git tree.
The CentOS way of "Build Your Own Kernel Modules" is described in this CentOS wiki article:
http://wiki.centos.org/HowTos/BuildingKernelModules
I suggest you try method 1 first to see if you can build your module. Once confirmed, you may want to proceed to method 3 to build a kABI-compatible module.
You can ask further questions about kmods either here, or better yet, on the ELRepo's mailing list. ELRepo ( http://elrepo.org ) builds a number of kernel modules for RHEL/CentOS/SL.
So bottom line is, i can't get the patches other than src-rpms?
That's why I mentioned yum update <package>. Yum will get the dependencies as well.
I better learn this thing, i guess.
You're on CentOS and not using yum to update the system? You very much need to learn it.
mark
On Fri, Jul 13, 2012 at 9:01 PM, m.roth@5-cent.us wrote:
Aft nix wrote:
On Fri, Jul 13, 2012 at 7:34 PM, Akemi Yagi amyagi@gmail.com wrote:
On Fri, Jul 13, 2012 at 5:29 AM, Aft nix aftnix@gmail.com wrote:
Hi,
I'm developing kernel modules right now, and the build times are starting to get under my skin. As a side effect i'm taking way too many "coffee" breaks during builds.
(snip)
- Is there any way i can get the "Centos specific" patches in "plain
patch" format? That means i dont wanna do things in src-rpm way. If the patches are available in normal patch format i can keep everything tidy in my kernel git tree.
The CentOS way of "Build Your Own Kernel Modules" is described in this CentOS wiki article:
http://wiki.centos.org/HowTos/BuildingKernelModules
I suggest you try method 1 first to see if you can build your module. Once confirmed, you may want to proceed to method 3 to build a kABI-compatible module.
You can ask further questions about kmods either here, or better yet, on the ELRepo's mailing list. ELRepo ( http://elrepo.org ) builds a number of kernel modules for RHEL/CentOS/SL.
So bottom line is, i can't get the patches other than src-rpms?
That's why I mentioned yum update <package>. Yum will get the dependencies as well.
I better learn this thing, i guess.
You're on CentOS and not using yum to update the system? You very much need to learn it.
I know how yum works. i'm a long time centos user. I'm talking about the "centos specific patches" for the kernel. if i roll these patches over vanilla kernel, it will become the kernel source where kernel rpms are built. Now centos distributes its kernel sources through src-rpms(srpms). Which is "already patched" kernel source. What i want is just the patches. so i that i can roll it over vanilla kernel and get identical source as those distributed through srpms.
I hope i'm clear now.
cheers.
mark
CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
On 13-07-12 19:48, Aft nix wrote:
I know how yum works. i'm a long time centos user. I'm talking about the "centos specific patches" for the kernel.
Afaik they are not CentOS specific patches. They are Red Hat patches (unless CentOS add additional patches).
if i roll these patches over vanilla kernel, it will become the kernel source where kernel rpms are built. Now centos distributes its kernel sources through src-rpms(srpms). Which is "already patched" kernel source. What i want is just the patches. so i that i can roll it over vanilla kernel and get identical source as those distributed through srpms.
Afaik you can't get the individual patches since that is not how Red Hat distributes their kernel src rpm which CentOS rebuilds. So you could ask Red Hat for the individual patches. Good luck with that. They started distributing pre-patched kernel sources to make competitors live (not necessarily CentOS) a bit more difficult. There's a long discussion about this on the Intertubes. Don't have the link anymore so Google is your friend.
If all else fails, you could do a diff between the vanilla kernel and the one distributed by Red Hat.
Regards, Patrick
Hello Aft,
On Fri, 2012-07-13 at 23:48 +0600, Aft nix wrote:
Now centos distributes its kernel sources through src-rpms(srpms). Which is "already patched" kernel source. What i want is just the patches. so i that i can roll it over vanilla kernel and get identical source as those distributed through srpms.
As CentOS is essentially a rebuild of RHEL the SRPMs are mostly the same as upstreams. Which sadly means that since v.6 the kernel source is distributed as a pre patched tarball.
Regards, Leonard.
On 07/13/2012 01:57 PM, Leonard den Ottolander wrote:
Hello Aft,
On Fri, 2012-07-13 at 23:48 +0600, Aft nix wrote:
Now centos distributes its kernel sources through src-rpms(srpms). Which is "already patched" kernel source. What i want is just the patches. so i that i can roll it over vanilla kernel and get identical source as those distributed through srpms.
As CentOS is essentially a rebuild of RHEL the SRPMs are mostly the same as upstreams. Which sadly means that since v.6 the kernel source is distributed as a pre patched tarball.
The latest CentOS-5 kernels are also now shipped this way as well ... one big Red Hat patch against the kernel tarball.
CentOS only makes 2 minor changes to the spec file before we build the kernel (so that the generated signing key for modules says "CentOS" and not Red Hat, Inc). We do not roll in any additional patches into the main kernel. We do roll in patches into the CentOSPlus kernel ... so you can look at the SRPM to see how we roll in our patches there.
Here is an article for you to read concerning the way Red Hat now ships their kernel:
http://www.channelregister.co.uk/2011/03/04/red_hat_twarts_oracle_and_novell...
And here is our response:
http://centosnow.blogspot.com/2011/03/how-new-kernel-srpm-distribution.html
Thanks, Johnny Hughes
Aft nix wrote:
Hi,
I'm developing kernel modules right now, and the build times are starting to get under my skin. As a side effect i'm taking way too many "coffee" breaks during builds.
<snip>
But Although i understand the stuffs, this is still a lot of tweaks to make that work.
2.6.32 and later kernels added a new target "make localmodconfig". which scans through "lsmod" and change the .config appropriately. So i thought i found my "automation". But this perl script has some problem too.
This thread describes the problems : https://bbs.archlinux.org/viewtopic.php?pid=845113
#1: archlinux? Are you working in CentOS or arch linux?
There was also a proposed solution which apparently worked for others , is to run the script directly instead of using make's target.
#2: That's because people don't understand make at all. Go read the O'Reilly book on Make: http://shop.oreilly.com/product/9780596006105.do. Grok it.
Although for me, make localmodconfig does not work at all. its because of the following :
$make clean
#3: you complain about how long it takes to build, yet you're doing a make clean *first*. See #2. Then *DO* *NOT* use make clean unless it's absolutely necessary.
$make mrproper $cp /boo/config-'uname -r' .config
#4: Have you looked at the contents of .config to verify they're what you expect?
$make localmodconfig
#5: How is .config used in the makefile?
and it haults with
vboxguest config not found!! nf_defrag_ipv6 config not found!! vboxsf config not found!! vboxvideo config not found!!The thing is my kernel development environment is inside virtualbox. These vbox modules were installed when i chose to install "virtualbox guest addtion".
#6: Did you install the dev modules *in* the virtualbox, as opposed to the host? <snip>
Now the workaround this obviously unloading these module and trying again. But I'm thinking if there is patch for the "streamline_config.pl" which will enable the user to exclude certain modules if s/he wants. Problem is i have "zero" knowledge about perl and i like it that way.
#7: You're building kernel mods, and don't want to know about perl?
So my problems in "nutshell"
- Patching streamline_config.pl so i can give a list of module name
as argument which it will exclude from processing the config file.
#8: Perhaps if you looked at the perl script, or ran it with -? or -h or --help, it might *tell* you?
<snip due to your followup email>
Additional info:
<snip>
- Is there any way i can get the "Centos specific" patches in "plain
patch" format? That means i dont wanna do things in src-rpm way. If the patches are available in normal patch format i can keep everything tidy in my kernel git tree.
#9: yum update [package], perhaps?
#10: And under annoyances, turn on your damn spellchecking. "Stuffs", "hault"....
mark "and maybe your makefile needs a VPATH corrected"
On Fri, Jul 13, 2012 at 7:48 PM, m.roth@5-cent.us wrote: <snip>
#1: archlinux? Are you working in CentOS or arch linux?
I'm using CentOS. But the problem was "make localmodconfig" is not working. I don't see how a question related to "building kernel.org kernel" relates to distribution, just because the problem was discussed in a distribution's forum. Same kind of discussion can be found(about faulty behaviour of "make localmodconfig") in debian/ubuntu forums if use try google.
There was also a proposed solution which apparently worked for others , is to run the script directly instead of using make's target.
#2: That's because people don't understand make at all. Go read the O'Reilly book on Make: http://shop.oreilly.com/product/9780596006105.do. Grok it.
Not understanding how this relates to ignorance of "make". may be you are pointing about the environment variables and stuffs.
Although for me, make localmodconfig does not work at all. its because of the following :
$make clean#3: you complain about how long it takes to build, yet you're doing a make clean *first*. See #2. Then *DO* *NOT* use make clean unless it's absolutely necessary.
I'm trying to tune up my kernel build. so i need to see which way it performs the best. During development i dont "clean". I dont even make the whole tree. i just build the part of the tree i'm developing.
$make mrproper $cp /boo/config-'uname -r' .config#4: Have you looked at the contents of .config to verify they're what you expect?
Yep, i have run make menuconfig to see what's enabled. But you there is thousands of options, its not practical to go through all of them. I just see common options. Like if the driver for my ethernet card is enabled "only". stuffs like that.
$make localmodconfig#5: How is .config used in the makefile?
Its used by default.
and it haults with
vboxguest config not found!! nf_defrag_ipv6 config not found!! vboxsf config not found!! vboxvideo config not found!!The thing is my kernel development environment is inside virtualbox. These vbox modules were installed when i chose to install "virtualbox guest addtion".
#6: Did you install the dev modules *in* the virtualbox, as opposed to the host?
Yes.
<snip> > Now the workaround this obviously unloading these module and trying > again. But I'm thinking if there is patch for the > "streamline_config.pl" which will enable the user to exclude certain > modules if s/he wants. Problem is i have "zero" knowledge about perl > and i like it that way.
#7: You're building kernel mods, and don't want to know about perl?
I managed to make it through without "perl" till now.
So my problems in "nutshell"
- Patching streamline_config.pl so i can give a list of module name
as argument which it will exclude from processing the config file.
#8: Perhaps if you looked at the perl script, or ran it with -? or -h or --help, it might *tell* you?
Honestly i've never checked it. i've just checked. nothing comes up with --help, -h -?. All are unknown options.
<snip due to your followup email> > > Additional info: <snip> > 3) Is there any way i can get the "Centos specific" patches in "plain > patch" format? That means i dont wanna do things in src-rpm way. > If the patches are available in normal patch format i can keep > everything tidy in my kernel git tree.
#9: yum update [package], perhaps?
trying not involve *rpm*. I like my git tree :) .
#10: And under annoyances, turn on your damn spellchecking. "Stuffs", "hault"....
English is not my native language. When i type quickly sometimes, correcting all the spelling mistake seems like a burden. Sorry for the annoyance in caused.
mark "and maybe your makefile needs a VPATH corrected"
Thanks for your insight.
cheers.
CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
On 07/13/2012 07:29 AM, Aft nix wrote:
Hi,
I'm developing kernel modules right now, and the build times are starting to get under my skin. As a side effect i'm taking way too many "coffee" breaks during builds.
So i was looking for a way to build only the stuffs i need for my platform. Chapter 7 and 8 of "linux kernel in a nutshell" gave a good detail of how to do that by hand. Its a good read : http://www.kroah.com/lkn/
But Although i understand the stuffs, this is still a lot of tweaks to make that work.
2.6.32 and later kernels added a new target "make localmodconfig". which scans through "lsmod" and change the .config appropriately. So i thought i found my "automation". But this perl script has some problem too.
This thread describes the problems : https://bbs.archlinux.org/viewtopic.php?pid=845113
There was also a proposed solution which apparently worked for others , is to run the script directly instead of using make's target.
Although for me, make localmodconfig does not work at all. its because of the following :
$make clean $make mrproper $cp /boo/config-'uname -r' .config $make localmodconfigand it haults with
vboxguest config not found!! nf_defrag_ipv6 config not found!! vboxsf config not found!! vboxvideo config not found!!The thing is my kernel development environment is inside virtualbox. These vbox modules were installed when i chose to install "virtualbox guest addtion".
And the netfilter module might be a Distribution specific module(Lot of netfilter modules are not part of the mainline kernel, so its not a shock to me), which is not included in mainline kernel.
Now the workaround this obviously unloading these module and trying again. But I'm thinking if there is patch for the "streamline_config.pl" which will enable the user to exclude certain modules if s/he wants. Problem is i have "zero" knowledge about perl and i like it that way.
So my problems in "nutshell"
- Patching streamline_config.pl so i can give a list of module name
as argument which it will exclude from processing the config file.
- I've tried to run the script by myself. But running it directly
fails with a error.
[root@kernel-host-rh6 linux-2.6]# sh scripts/kconfig/streamline_config.pl scripts/kconfig/streamline_config.pl: line 45: my: command not found scripts/kconfig/streamline_config.pl: line 47: my: command not found scripts/kconfig/streamline_config.pl: line 48: chomp: command not found scripts/kconfig/streamline_config.pl: line 50: syntax error nearunexpected token `(' scripts/kconfig/streamline_config.pl: line 50: `my @searchconfigs = ('
Again my "zero" knowledge about perl does not helping my case.
Additional info:
I have faced the same thing in 2.6.32, 2.6.33, 2.6.35, 3.4, 3.4.rc1 .....(I constantly switch version for various reasons, everywhere the problem is same)
You can access the script from kernel.org gitweb: http://git.kernel.org/?p=linux/kernel/git/stable/linux-stable.git;a=blob;f=s...
Its from 3.4.0. `git log --stat scripts/kconfig/streamline_config.pl` shows some activity recently on this file. But my problem persists.
- Is there any way i can get the "Centos specific" patches in "plain
patch" format? That means i dont wanna do things in src-rpm way. If the patches are available in normal patch format i can keep everything tidy in my kernel git tree.
What are you doing to the kernel that we are not doing in the CentOSPlus kernel?
-
Aft nix -
Akemi Yagi -
Johnny Hughes -
Leonard den Ottolander -
m.roth＠5-cent.us -
Patrick Lists