Slackware :: Compiling Kernel - Config Debug Section Mismatch

May 11, 2011

Anyone able to compile kernel on Slackware 13.37 successfully using the config from testing/ I was able to get .4 and .5 to compile successfully, but with .6 I get the following after running "make modules".

WARNING: modpost: Found 11 section mismatch(es).
To see full details build your kernel with:
Running "make CONFIG_DEBUG_SECTION_MISMATCH=y 2>&1 > outfile" gives me a bunch of WARNINGS as follows:

WARNING: vmlinux.o(.text+0xe656a): Section mismatch in reference from the function build_all_zonelists() to the function .meminit.text:setup_zone_pageset.clone.56()
The function build_all_zonelists() references
the function __meminit setup_zone_pageset.clone.56().
This is often because build_all_zonelists lacks a __meminit
annotation or the annotation of setup_zone_pageset.clone.56 is wrong.....

WARNING: drivers/watchdog/nv_tco.o(.devinit.text+0x14): Section mismatch in reference from the function nv_tco_init() to the function .init.text:nv_tco_getdevice()
The function __devinit nv_tco_init() references
a function __init nv_tco_getdevice().
If nv_tco_getdevice is only used by nv_tco_init then
annotate nv_tco_getdevice with a matching annotation.

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Ubuntu :: Make-kpkg Strange Vanilla Kernel Build Errors: Found 60 Section Mismatch(es) ?

Apr 30, 2011

I've getting strange build errors when using make-kpkg with the latest (2.6.39-rc5) vanilla kernel.I'm using the procedure outlined here:

make oldconfig CONCURRENCY_LEVEL=`getconf _NPROCESSORS_ONLN` fakeroot make-kpkg --initrd --append-to-version=-custom kernel_image kernel_headers

I'm getting the following build errors:

Building modules, stage 2.
MODPOST 3053 modules
WARNING: modpost: Found 60 section mismatch(es).To see full details build your kernel with:'make CONFIG_DEBUG_SECTION_MISMATCH=y'
CC arch/x86/crypto/aesni-intel.mod.o[code]....

There is even much more error output but it looks like it is basically the same issue.

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General :: WARNING: Modpost: Found X Section Mismatch(es)?

Jan 17, 2011

I am trying to compile and install a new kernel. I have downloaded the 2.6.37 version from and I have extracted it in usr/src/linux-2.6.37/ folder.I have tried to compile it and install it according to the instruction given in the following web site and which I found very useful:ttp://, I am encountering some problems during the make install modules process as I get some warnings (i.e. The title of this post).I thought to ignore the warnings and continue by copying the modules in /lib/modules/linux-2.6.37 but this is not possible since at that directory there is no folder created with the new kernel I am trying to install and thus I get a msg saying: FATAL: could not load /lib/modules/2.6.37/modules.dep.

The warning message: WARNING: modpost: found X section mismatch(es) suggests to run a make CONFIG_DEBUG_SECTION_MISMATCH=y.At the moment I am running a make again and saving the output to a file so that I can see later on what are the mismatches that I get. In any case we are talking about more than 50 mismatches so I am wondering if these mismatches are not that serious and the problem I cannot install and copy the modules is something else

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Programming :: Extract Dwarf Information Debug A Section?

May 10, 2011

I would like to extract debug information but I have some problems. For example, I have a executable a.out...


nm -f sysv a.out | grep ".global_var" >vars.txt

With this command I extract all my variables. All of them are in .global_var section, and it give me follow information:


CAN_station_n |08073258| D | OBJECT|00000001| |.global_var
CONTROLend |080732a7| D | OBJECT|00000001| |.global_var


Well, I have only address of my vars, but I would like to know type var or struct of the variables. With dwarf dump I have all of information, but it is a mess...


<1><117bc>: Abbrev Number: 32 (DW_TAG_variable)
<117bd> DW_AT_name : (indirect string, offset: 0x153d): draw_limits
<117c1> DW_AT_decl_file : 128
<117c2> DW_AT_decl_line : 207


Is there any parser or way to put in order this information?? create a file with the follow information:

name of var - address - type - size - struct or not

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Slackware :: Compiling Kernel For 13.0 Patches?

Mar 12, 2010

I'm tryin to run this script to make me a aufs/squashfs/lzma patched kernel and I keep getting this

root@slackware:/usr/src# ./build.kernel
* Unpacking archives


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Slackware :: Looking For Kernel Compiling Guide?

Feb 6, 2011

I haven't used slackware for many years. There used to be a sticky thread with a great kernel compiling guide for slackware. It feels somewhat unnatural to me to use slackware without a shiny new kernel. Does that guide still exist? I'm working from memory right now.

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Slackware :: Compiling Kernel Sources To Add Few Options

Apr 18, 2010

I want to compile a kernel to add a few options that are not enabled in the huge-smp- that comes with slackware. specifically, i want to add TASK_DELAY_ACCT and TASK_IO_ACCOUNTING so that I can use iotop. I just want to add those 2 options to the new kernel, everything else I'd like to keep the way it is as the system has been running just fine. Will running 'make menuconfig' in /usr/src/linux default to the options that are used in the stock kernel?

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Slackware :: FGLRX Driver And Compiling Kernel In 13.1

May 26, 2010

I am currently having an issue installing the FGLRX driver in slackware 13.1. I use a customer kernel due to buggy acpi on my toshiba laptop. The steps i took to compile my kernel are as followed. hu

make mrproper in /usr/src/linux directory
patch /usr/src/linux directory
copy kernel config from /boot directory
make menguconfig and load config
the make all
make modules install
i have also tried make install as well
then i mopy the kernel file and config file into /boot directory
edit lilo
reboot ... everything works fine acpi works properly like before.. now the problem comes.. I try to install the fglrx drivers and i get the error message
kernel includes at /lib/modules/ do not match current kernel.
they are versioned as ""
instead of "".
you might need to adjust your symlinks:
- /usr/include
- /usr/src/linux
ERROR: I don't have make module
Am I doing something wrong setting up my kernel. Issue on my gentoo box I have.

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Slackware :: Compiling Kernel - Ext4 Is Read As Ext3?

Jan 25, 2010

I compiled a kernel using a previous kernel config after I switched to the ext4 file system. Previously it was using ext3 and the kernel compiled and ran fine. I added support for ext4 to the config but when I went to boot I had a kernel panic. The error was "kernel can't mount vfs on (8,5)". Root is on sda5, I don't know what the 8 is. I started over, using mrproper and made a new config, but got the same error. I created an initrd with the ext4 file system but then the kernel said it couldn't mount root on ext3 because of unique options. (something along those lines) I booted back into the default kernel and saw that it had a similar error right after the bios check, but it loaded fine. I'm wondering why the kernel is saying that the ext4 file system is ext3.

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Slackware :: Slap DVD Laptop Kernel Config

Sep 8, 2009

This is my first effort in making something more appropriate for laptop users (exclusively). This is a kernel config for I started with the Slackware Generic-SMP 32bit kernel config (this is a 32bit kernel config). All credit for (in my opinion) the best starting place for any kernel config goes to Patrick Vokerding. (Please tell me if I am or am not doing this properly in terms of respecting the work of others, GPL, GNU, etc.)

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Fedora Installation :: %pre Section In Kickstart Config?

May 2, 2011

Which directly is accessible during the %pre section? I try to use wget to retrieve a file from FTP to /root but after the machine is build, I don't see that file in /root directory.

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Slackware :: Compiled A 2.6.35 Kernel With A Couple Of Different .config Files And Never Had It Boot Properly?

Oct 14, 2010

The new kernel fails to boot on my Lenovo laptop. I had previously compiled a 2.6.35 kernel with a couple of different .config files and never had it boot properly. The failure occurs very quickly and I am including the final screenshot in case that helps.

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CentOS 5 :: Yum Repolist Config Error 'File Contains No Section Headers'

Mar 7, 2010

i try to run yum update and now i get this error Config Error: File contains no section headers.


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Slackware :: Vbox Guest Additions - Proprietary Version - Fail With - Currents New Kernel Config

Mar 11, 2010

Experienced that building the vbox guest additions (on the binary/non-free vbox) on a slackware --current guest (with windows *and* linux as a host) fails now with the new kernel's just released in --current?

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Debian :: Compiling Kernel - 2.6.26 Version Of Kernel Doesn't Longer Exist In Website

Sep 16, 2010

i'm using this guide videos - howto: debian linux kernel compilation, part 1 and the author says i need kernel 2.6.26 this version of kernel doesnt longer exist in website and the only 2.6.26 i found is a patch here. should i use the patch? or download another version of kernel?

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OpenSUSE :: Kernel-source Mismatch In

Feb 20, 2010

probably an obvious error so I apologise in advance - trying to install vmware player, and it needs the kernel-source to build drivers. I've gone out and downloaded kernel-source for my running kernel.

However it's complaining that the kernel-source ( does not match the running kernel (

Presumably there's something I need to do in order to get the aligned to

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CentOS 5 :: VirtualBox Error - Kernel Source Mismatch

Mar 1, 2011

uname -r prints 2.6.18-164.el5
Yum install kernel-headers/kernel-devel gives me 2.6.18-194
When trying to run virtualbox I get an error:
Kernel Driver not installed: (rc=-1908)
Please reinstall the kernel module by running "/etc/init.d/vboxdrv setup" as root...

/etc/init.d/vboxdrv setup
Stopping VirtualBox kernel modules [OK]
Uninstalling old VirtualBox DKMS kernel modules [OK]
Trying to register the VirtualBox kernel modules using DKMS
Error! Your kernel headers for kernel 2.6.18-164.el5 cannot be found at /lib/modules/2.6.18-164.el5/build or /lib/modules/2.6.18-164.el5/source. [FAILED]
(Failed, trying without DKMS)
Recompiling VirtualBox kernel modules [FAILED]
(Look at /var/log/vbox-install.log to find out what went wrong)

I'm assuming the setup program is using the output from uname -r to determine the kernel, the problem is the kernel sources I've got from yum do not jibe with the uname value.

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Slackware :: Config PREEMPT_VOLUNTARY Bool "Voluntary Kernel Preemption (Desktop)"?

Apr 6, 2011

I found in one thread a note about some kernel config parameters which should be used by servers.

bool "Voluntary Kernel Preemption (Desktop)"


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Slackware :: How To Save Needed Modules Config To Create .config?

Apr 9, 2011

I am running a server with a GRSecurity patched Kernel I've tried to optimize the kernel as much as I can and know it (removing options, not needed drivers and so on) and compiled the modules into the kernel (no loadable modules anymore). I've started with Slackware 13.0 and the default config for Still I am not sure what to remove/optimize further now.

My question: Is there a way to boot with a kernel with loadable modules, check which modules are really needed for this hardware, (do something like lsmod) and save the running configuration modules for a next kernel compile to be the default .config instead of writing them down by hand and search for the appropriate names in .config or during menuconfig? (Note: zcat /proc/config.gz > .config is NOT the way I want, as it gives me just the current kernel config)

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Programming :: Want To Debug Kernel.bin

Jan 31, 2010

I want debug kernel.bin
this file is boot in floppy

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Fedora :: Debug - Kernel-uname ?

Aug 29, 2009

I got this message after a update some weeks ago and am now on a permissive opening.

Fedora 11

gnome 2.26.3

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Ubuntu Installation :: Sdl-config Error When Compiling DOSbox 0.70?

May 8, 2011

Trying to compile DOSbox version 0.70. Apparently this is the only version that can run Privateer flawlessly.Problem is, when I extract the source and try to './configure', I get an error that SDL 1.2 is not installed.

anthony@anthony-1010:~/Games/DOS/dosbox-0.70$ ./configure
checking build system type... i686-pc-linux-gnu


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Fedora :: Debug New Kernel Not Booting - Freeze

Apr 13, 2011

I just installed via Software Update and rebooted. When selecting new kernel to boot from, the boot sequence doesn't finish. I am not sure how t o troubleshoot; I am prompted for the PassWord for encrypted /home, but after that, it freezes.

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Slackware :: Where Can I Find KDE 4.4.x Debug Symbols?

Jun 26, 2010

Where can I find KDE 4.4.x debug symbols?

My dolphin-fish likes to be out of segment (segmentation fault).

KDE crash handler complains about missing debug(ger) symbols.

Are they added to Slackware? I made full-install.

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OpenSUSE Install :: Immutable Section Of HDD + Differencing Section?

Jul 8, 2010

You maybe know that VirtualBox has an "immutable" feature for HDD images. I.e. setup the system, if the stuff is in place, you can set the image to IMMUTABLE to prevent any changes to the image. Differences are written to a separated image. So on the next boot you'll see that all the (unintended) changes are gone and the "old" system is up & running again. I run an old SuSE 10.3 on a write-protected SD-IDE-Adapter. Changing and playing with RPMs is a mess due to around 50 changes I had to do to make that work. Is there any option to mount an SD-card as RO and having all the changes written to e.g. /dev/sda3? To make it clear: I thought about something like a RAID-X system, but could not find any description on how to setup a raidtab.

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OpenSUSE Install :: 11.2 Loads Debug Kernel Not Default / Change It?

Dec 23, 2009

Recently, I upgraded 11.1 to 11.2. Everything seemed to go fine. However, for some reason the system boots with the debug kernel - According to Yast every kernel under the sun seems to be loaded on the system. Grub, however, gives two choices - one for the regular and one for the failsafe system. They both boot to the debug kernel.

How do I get this thing to load into the regular, as opposed to the debug, kernel?

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Hardware :: Trying To Debug Memory Error Lockup - Kernel Panic

Jan 31, 2010

I am having a problem with lockups on a new FC12 box (dual core 3 ghz, 4 gb memory, HDPVR, nvidia 8400gs). This happens reliably when replaying MythTV videos, but also randomly at other times using other apps. Usually but not always this is accompanied by a kernel panic (caps lock + scroll lock lights flash on keyboard).

I did a core dump with kdump and it reports:
Thread 1 (<main task>):

Cannot access memory at address 0xffff880028025b70I am in the process of running memtest86+ right now, and it's been through several passes without errors. I know it needs to run more, but given the reliability of this problem with MythTV video playback I am wondering if the problem could be in the video card memory. Any linux (or bootable) tester for video memory? All I am able to find are some things for windoze such as this. Also is there any way to track that address from the core dump back to a physical location?

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Fedora :: FC13 Error With RPM Check Debug Fails Update Of Kernel

Jul 10, 2010

Googled this and found the same problem mentioned in the yum site:
[root@plouton ~]# yum update kernel
Loaded plugins: refresh-packagekit
Setting up Update Process
Resolving Dependencies
--> Running transaction check
---> Package kernel.x86_64 0: set to be installed
--> Finished Dependency Resolution
--> Running transaction check
---> Package kernel.x86_64 0: set to be erased
--> Finished Dependency Resolution
Dependencies Resolved

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OpenSUSE :: Different Kernel Variations - Remove Other Stuff Except Debug - Default And Desktop

Oct 8, 2010

Now I've got debug, default, desktop, ec2, trace, vanilla, xen installed im my system. I usually only boot with desktop, and I was wondering if it is OK to remove other stuff except debug, default, and desktop.

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General :: Extracting Kernel Config From Kernel Image -- Extract-ikconfig

Jan 22, 2010

I'm trying to run extract-ikconfig because I've mistakenly deleted an old kernel config that I'd like to recover. However, when running the script from the latest ( tree I run into this error:


ERROR: Unable to extract kernel configuration information.

This kernel image may not have the config info.

Coincidentally, this happens with all of my kernel images. Is it a fixable problem? I should really set CONFIG_IKCONFIG_PROC next time..

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