Kernel source path linux. Make sure that the kernel-devel package is installed.

Kernel source path linux 0-rc2 kernel from kernel. 36. But how do I find the path of the resulting kernel? Jun 30, 2013 · I am planning to write some device drivers and I need to get the Linux kernel source. The OpenBMC project maintains a kernel tree for use by the project. Linux is a relatively new operating system that has begun to enjoy a lot of attention from the business, academic and free software worlds. 0-1160. /cuda_7. I’m trying to get it to run Xubuntu 13. el7 - tag, dated 2022-03-23 08:53:18 Oct 22, 2020 · The part I'm working on is kernel-devsrc, which is in the recipe recipes-kernel. Use KHDR_INCLUDES in Makefile to include headers from the kernel source. I've tried . mx6 and I want to modify its Kernel. This document provides a rough overview of their differences, and how they fit together. config -d DEST_PATH, --dest DEST_PATH source insight conditional parsing xml file path When kbuild executes, the current directory is always the root of the kernel tree (the argument to “-C”) and therefore an absolute path is needed. Jul 28, 2012 · I tried to look for the kernel source code under /usr/src/linux-3. To help developers navigate the codebase more easily, this is a lightweight tool that uses GPT-4o to generate summaries of the Linux kernel Linux kernel source tree. Headers for the kernel release as opposed to headers installed by the distro on the system should be the primary focus to be able to find regressions. spec file being used to build the package (see rpmbuild (8) man page for details). If I run 'petalinux-build', I asume that Petalinux has some local copy of the kernel sources. <p></p><p></p> <p></p><p></p> Q1 : where can I Apr 23, 2012 · What is the path to Linux Kernel source: beginner16: Linux - Newbie: 4: 11-24-2003 04:21 AM: LinuxQuestions. Create a tarball of the kernel source. Makefile language¶ The kernel Makefiles are designed to be run with GNU Make. Sep 15, 2021 · As far I understand it tries to compile the driver against the current running kernel version 5. I figured that if I copy Kernel source outside the Yocto project and make my modifications without dealing with patches, I can speed Apr 16, 2012 · How do I add an include path for kernel module makefile? I want to include "test_kernel. These are the base stable releases released by Linus. I have to add a system call in this but i am facing a problem. gz. 2 with debian patches linux- source - Linux kernel source (meta-package) N: Ignoring file '50unattended-upgrades. h" resides in other directory "inc" I tried in the following solution in my Makefile but it does not work: obj-m += test_module. If you really must have the kernel source tree, for whatever reason, it is obtainable. xz (that is, pristine kernel source with problematic parts removed) and applying a set of Debian patches. d/' as it has an invalid filename estension make KERNEL_TREE=<put in the full path above> Debian <root of the kernel source tree> is where the kernel source is. To support Secure Boot, the kernel, kernel-dtb, and initrd binary files must be signed and encrypted with keys to generate encrypted binary files and signature files. An alternative is to use the “make” target “modules_prepare. – It defines a place for installing the device tree blobs. The driver installation is unable to locate the kernel source. 2 version) trying to install Nvidia driver and cuda toolkit via . 04 LTS, the kernel source archive will be at /usr/src/linux-source-3. This tells the same: "I attempted to figure a way to install the nvidia driver, but my understanding is that I need the 96. $(src) provides the absolute path by pointing to the directory where the currently executing kbuild file is located. 16. 0 on HP Proliant DL380P-Gen8 (2x E5-2697 V2s, 256GB DDR3, Tesla P4 GPU). xz), any available kernel patches (linux_X. The 5. You can also use cat /proc/cmdline to find the kernel path, but note that this path is relative to the root image at boot time, so / likely means /boot/ in the running system. But I couldn't find source tree there as well. org if you want to help out. Looks like you don't compile for ARM, or /usr/src/linux-headers-3. And the source code for all three kernels are located at different paths. From some of the online materials, I need to: Have my own layer; In the layer, need a recipe with the same name as recipes-kernel (and further more, recipes-kernel/linux) Nov 21, 2015 · I am running ubuntu 13. For example, if you are running Ubuntu 14. The most likely reason for this is that the kernel source files in '/root/linux-source-3. Maybe you do not need the full kernel source. My Linux kernel version is 3. Nouveau doesn’t do a good job of working with the card, and it makes te screen all jittery. x kernels¶. Also, the kernel must have been built with modules enabled. You might just need the kernel-devel package. 0-5336-pkg1. 04 LTS system (which included a new Kernel build, and the regeneration of Initramfs), my NVIDIA Drivers resulted to be “broken”. I wanted to look for drivers concerning usb for fun, but I can't seem to find the excact location of the kernel source code. These kernel header files are used by the system’s C library (such as glibc or uClibc) to define available system calls, as well as constants and structures to be used with these system calls. after that i did petalinux-config and attached external kernel path in linux component selection ; ---> External linux-kernel local source settings --->(provide First use the headers inside the kernel source and/or git repo, and then the system headers. 13) is 495. 34~14. Any ideas? Apr 30, 2017 · "Linux kernel source not configured - missing version. My problem now is that I cannot seem to find where these files are. bash /path/to/nvidia-440. GitHub Gist: instantly share code, notes, and snippets. When to use the queue-depth policy: Dec 16, 2024 · Signing and Encrypting the Kernel, the kernel-dtb, and the initrd Binary Files . The highest numbered release is the most recent. 0 Infrastructure Data Path Function ¶ Intel idpf Linux driver. X. ) Feb 25, 2023 · The key was being able to install Linux headers with the following command: sudo apt-get install linux-headers-`uname -r` As it wasn't able to install the headers for the kernel, it produced the following log: Mar 13, 2014 · I am trying to compile a module against any source tree on the file system but I am having trouble with the Makefile. If an issue is identified with the released source code on a supported Introduction "kbuild" is the build system used by the Linux kernel. I’m on . As there are software packages that rely on the sources being in /usr/src/linux, maintain this directory as a symbolic link to your current kernel source. h file or the whole source directory, maybe I mis-configure something. json file in the . diff. 4. x kernel version 3. Last edited by burninate (2012-08-25 09:48:56) Apr 14, 2004 · Exited X and ran: sh NVIDIA-Linux-x86-1. If I disable nouveau the screen is perfectly fine, but I can only get resolutions up to 800x600. 0-862. Like INSTALL_MOD_PATH, it isn’t defined in the Makefile, but can be passed by the user if desired. 1, Nvidia 440. tar. h file is in /usr/include/linux/ but this Nvidia program can't find it then it asks me to run it with the --kernel-source-path argument and I do give it that path and it doesn't work It says it can't find it because it won't take the right path Running it just by Nov 12, 2021 · The current driver (which should support up through Kernel 5. 0-34-generic but for some reason it can't find the kernel. ” This will make sure the kernel contains the information required. 4 pointing to it. Jun 29, 2008 · Unfortunately the installer is having problems of its own. When kbuild executes, the current directory is always the root of the kernel tree (the argument to “-C”) and therefore an absolute path is needed. Queue-Depth¶ The queue-depth policy manages I/O requests based on the current queue depth of each path, selecting the path with the least number of in-flight I/Os. 2. It should generate a c_cpp_properties. Kernel uses poll for waiting on FDs and it is used to emulate select. dsc) will also be Jun 5, 2017 · 查看内核的发行版：uname -r（--kernel-release）$ uname -r4. Re-upload of GPL release - katadelos/linux-3. The kernel source code installed by the linux-source package is installed in the form of a compressed archive in the /usr/src directory. Following through the steps as laid out for vgpu-proxmox, vgpu_unlock-rs, etc. 0. In this tutorial you will learn: Privileged access to your Linux system as root or via the sudo command. 6. dentry->d_inode; } Apr 15, 2014 · But currently, image 3. I have tried to point to the kernel source path (I may be pointing to the wrong path; I'm a new Linux user) with the following command: $ . h" To solve this issue, create the version. So now, if I wanted to find the source of currently running kernel image, how do I do that? I know uname -r will give the current kernel image. The former is just a limited sub-set of the latter. The tree's general development policy is that code must be upstream first. When browsing I thought it might be in other directories like /boot. X+XXX. xz The first one is a folder containing the correct source code for your installed kernel. I did explicitly mention the kernel path as well using --kernel-source-path but still the installer fails. o test_module: $(MAKE) -C "$(LINUX_DIR)" -Iinc $(MAKE_OPTS) modules May 4, 2019 · I have downloaded from a hardware vendor just a tarball of their Linux source tree (no Git repository metadata), is there a way to find out the version number of the kernel? Is the version number usually stored in a file somewhere in the source tree? I'd like to be able to do this without compiling and running the kernel. 02. These patches typically implement essential fixes for serious bugs and security holes. 16-200. Nov 13, 2013 · By default, the kernel source tree should be in usr/src/ directory. x. 2' have not been configured. /configure on the source root and Code: Select all If you know the correct kernel source files are installed, you may specify the kernel source path with the '--kernel-source-path' command line option. Oct 8, 2018 · Step 1: Check current kernel version # uname -r 3. 26. orig. Kernel modules may already be part of the Linux source tree (in-tree) or may come from an external source, such as directly from a vendor (out-of-tree). Jul 7, 2015 · Probable location is ~/rpmbuild/ {SOURCES,SPECS} with SOURCES containing the package sources and distribution patches while the SPECS subdirectory containing the . 0-23-generic-pae and I downloaded the image from this. This can be either a relative or an absolute path, but if KBUILD_ABS_SRCTREE=1 is set, it is always an absolute path. If in doubt, start a discussion on the mailing Sep 20, 2011 · When building a Kernel Driver out of tree, i run make like this in the drivers directory, where KERNELDIR either is the path to the kernel source, or to the headers. Aug 16, 2018 · I know my kernel. org > Forums > Linux Forums > Linux - Distributions Mar 5, 2018 · have the ‘kernel-source’ or ‘kernel-devel’ RPM installed. Sep 17, 2021 · Hi, as you can see, it is not my information but the guide’s. The actual source code is missing there. . Start there. 32 to 3. But, if I just add -I/usr/src/linux-headers-4. 59). Jun 7, 2016 · Linux Source directory and description : arch/ - The arch sub-directory contains all of the architecture specific kernel code. The Linux Kernel. (If, however, you are certain that the full source tree is required, please follow the instructions in Section 2. run --kernel-source-path /usr/src/kernels/$(uname -r) Or just omit the --kernel-source-path option altogether. 19. py [-h] [-s SRC_PATH] -d DEST_PATH optional arguments: -h, --help show this help message and exit -s SRC_PATH, --src SRC_PATH linux kernel config file path, default: . 7-10 or so forth, depending on the kernel your red hat is using. Homogeneous Path Performance: Utilizes all paths efficiently when performance characteristics (e. 126. 18-3 and there is a symbolic link named linux-2. h file by going to the Linux source tree and entering: Kernel Testing Guide¶ There are a number of different tools for testing the Linux kernel, so knowing when to use each of them can be a challenge. For example to obtain the source for the currently running kernel you can use the command below: The source from which the Debian binary kernels are built is obtained by taking the source from linux_version. /configure on the source root and Code: Select all May 20, 2019 · After the last update to my Ubuntu 18. config etc) and these are still in the LINUX_SOURCE_DIR. dsc linux_XXX. c and a copy in fs/compat. bz2 . x86_64 Step 2: Check installed kernel version # yum info kernel Loaded plugins: fastestmirror, langpacks Loading mirror speeds fr…. When I later use the command: sudo sh NVIDIA-Linux-x86_64-430. Nov 24, 2003 · I do have the same kernel version source code installed in the directory /usr/src/linux-2. Architecture independent initialization code to start the kernel. This manual describes how to set up your build host to support kernel development, introduces the kernel development process, provides background information on the Yocto Linux kernel Metadata, describes common tasks you can perform using the kernel tools, shows you how to use the usage: lkc2sicx. Usually my solution to this was to completely reinstall the Drivers, and everything went ok after that This time, when trying to Oct 8, 2018 · Step 1: Check current kernel version # uname -r 3. run --no-kernel-module That driver is 3-4 years old which could be why the dkms build fails due to an expired cert. The kernel-open flavor is only supported on Turing GPUs and newer. May 11, 2018 · If you compile kernel for ARM architecture, directory arch/arm/include is included automatically. If regressions or other serious flaws are found, then a -stable fix patch will be released (see below) on top of this base. Jun 11, 2020 · So, make sure that the kernel-devel RPM matching the exact kernel version you're running is installed, then try this one: NVIDIA-Linux-x86_64-418. 2. Here is the README file url, When kbuild executes, the current directory is always the root of the kernel tree (the argument to “-C”) and therefore an absolute path is needed. Without this, navigating the Linux source would be impossible, as described on this seminal wiki page on using Eclipse to study the Linux Your kernel-source is bundeled with you redhat 9 CDs. 32. Any ideas? Linux kernel source tree for Amazon Kindle devices. If you plan to experiment with different kernels, unpack them in different subdirectories and create a symbolic link to the current kernel source. 2 - Linux kernel source for version 4. I tried --kernel-source-path=/usr/src/linux-source-3. 0 That will put the kernel source tree in /usr/src/linux-source-3. 5. Anyone can help please. The WSL2-Linux-Kernel repo contains the kernel source code and configuration files for the WSL2 kernel. x86_64 Step 2: Check installed kernel version # yum info kernel Loaded plugins: fastestmirror, langpacks Loading mirror speeds fr… May 14, 2009 · 1. Dec 16, 2022 · The Cloud Content team comprises subject matter experts hyper focused on services offered by the leading cloud vendors (AWS, GCP, and Azure), as well as cloud-related technologies such as Linux and DevOps. 0 However the actual source tree need to be de-compressed Jan 8, 2002 · The /usr/src/linux directory is usually just a symlink to the actual directory which should be something like /usr/src/linux-2. 43 one. debian. Where you see green squiggles under a header file #include, click on it. h. Therefore I tried to install the Oct 31, 2020 · 在处理 Linux 系统时遇到 "无法找到当前运行内核的内核源代码树" 错误可能会很令人沮丧。然而，通过遵循本文提供的解决方法，您应该能够解决此问题并继续进行与内核相关的任务。 Jun 2, 2016 · Brand-new installation of PVE 8. 2 this should be kernel 4. As an ordinary user, not root, create a build Chapter 1 Introduction. Mar 20, 2013 · Select is implemented in /fs/select. 7 configuration file. io_uring: ipc: kernel: lib: Supporting functions: LICENSES: mm: Memory management: net: Networking: rust: samples: Driver samples: scripts: Supporting scripts, especially for the build system. From what I was able to scrounge together from mailing lists, manual pages, and the Linux source code, I came up with this small function: struct inode* get_inode_from_pathname(const char *pathname) { struct path path; kern_path(pathname, LOOKUP_FOLLOW, &path); return path. Contribute to torvalds/linux development by creating an account on GitHub. conf. xz linux_XXX. If you need to compile a kernel driver module, the chances are you do not really need the full kernel source tree. make -C $(KERNELDIR) M=$(PWD) modules Sep 2, 2024 · I currently run Angstrom Linux 2. The Linux kernel is a large and complex codebase, with over 30 million lines of code. 62. Feb 5, 2021 · specify the kernel source path with the '--kernel-source-path' command line option. I intend to upgrade the Linux kernel from 2. $(srctree) $(srctree) refers to the root of the kernel source tree. Everything seems to work fine and I can successfully boot into the system. run file from nvidia doesn't work for newer kernels, and I gave up on that approach after a while. $(objtree) $(objtree) refers to the root of the kernel object tree. Jun 22, 2020 · $ sudo apt-get update $ sudo apt-get source linux-image-$(uname -r) After this, you will have the following files in the current directory: linux-XXX/ linux_XXX. 0-12. 0-78-generic内核源码所在的位置：/usr/src$ cd /usr/src_--kernel-source-path Linux 内核源码（kernel source）路径 五道口纳什 于 2017-06-05 12:38:34 发布 The module parameter ‘’path’’ can be passed to the firmware_class module to activate the first optional custom fw_path_para. 9-1-ARCH but there's only a binary file (an image?) vmlinuz in there. xz) and source control file (linux_XXXX. 2 sources to compare with this package and see what changes were introduced? It should work that way. When building the kernel, this is the same as $(srcroot). g. This didn't work either and I'm currently looking at: "Error: unable to find the kernel source tree for the currently running kernel. You may find current kernel directory with ls -l /lib/modules/$(uname -r)/build. (So trying to use it results in various other missing-file errors. Mar 8, 2022 · The following is a chronological list of distribution kernel tags managed in this repository: CentOS 7. Do you have any other idea? Nov 26, 2015 · $ apt-cache search linux-source linux-source-4. Understanding the codebase can be challenging, especially for newcomers. Aug 8, 2015 · This is a branch off of this question: Installing new driver on Linux, missing the &#39;Build&#39; directory Since the PC has no internet I can not use apt-get to rebuild the kernel and get the l --kernel-module-build-directory=<kernel|kernel-open> Tells the driver installation to use legacy or open flavor of kernel source when building the NVIDIA kernel module. run, compile a kernel interface layer for the currently running kernel (use the --kernel-source-path and --kernel-output-path options to specify a target kernel other than the currently running one), and create a new installer package with the kernel interface layer added. 10. 10 on linux kernel version 3. This will load the Add/Remove programs dialog. x86_64. Sep 2, 2024 · I currently run Angstrom Linux 2. STAGING_KERNEL_DIR is the variable that you want, as that what a normal module recipe uses to find the kernel makefile. vscode directory within your project. 5. Example : 1. The very first step says that I have to change my current working director Feb 15, 2019 · In local. Apr 27, 2017 · Using O= as some other answers suggest is not correct, as this specifies the path to find the kernel's output files (. If you are using a distribution kernel, there will be a package for the kernel you are running provided by your distribution. apt-get install linux-source-3. Nov 22, 2017 · I have a Yocto build for i. Modules must use kbuild to stay compatible with changes in the build infrastructure and to pick up When kbuild executes, the current directory is always the root of the kernel tree (the argument to “-C”) and therefore an absolute path is needed. At least for me installing the pve-headers package did not change anything. security: Linux security module framework which allows to extend the default security Sep 14, 2016 · Patches for the Linux kernel are generated relative to the parent directory holding the kernel source dir. the "test_kernel. 14. 7 by running make menuconfig. On Ubuntut/Debain, download kernel source. 18_linux. run --kernel-source-p Configure vscode for linux kernel source code. Mar 13, 2014 · I’ve got an old shuttlePC with a motherboard with a AMD Sempron 3000+ CPU and an integrated nvidia GeForce4 MX graphics card. Jan 14, 2016 · Well, a standard module recipe inherits module, which sets up the environment for a normal out of tree module build. Writing and Running Tests¶ The bulk of kernel tests are written using either the kselftest or KUnit frameworks. I also tried cloning the Linux kernel repository, checked out the matching branch and set the --kernel-source-path to The linux kernel’s exported header files describe the API for user space programs attempting to use kernel services. The custom path can only be up to 256 characters long. 0-36/include it can't find linux/export. Jul 20, 2019 · When I try to install NVIDIA driver on WSL 2, the driver yields an error: cannot find the current kernel tree. 0-30-generic is not your kernel build directory. -m=kernel. If it's not there, find the install CD with the kernel source and install it. Jun 11, 2024 · Signing and Encrypting the Kernel, the kernel-dtb, and the initrd Binary Files . I saw files with same name in arch/architecture, but I can't find amd64 or x86_64. XX. The literal source code which generated a specific binary package may be obtained using the apt-get source <package> command. And I want to install the latest VirtualBox version, 6. how can i solve this, or is there a different way to install the driver? in general why installing a driver for linux is so damn hard compared to windows? thanks in advance Regardless of how you intend to make use of the Yocto Project, chances are you will work with the Linux kernel. This is a strong requirement, not a hard requirement, and exceptions will be made on a case-by-case basis. 44. Run package from terminal…So after issued the . Also, you don't need "--kernel-source-path" or any other flags when installing on the host. I want to change one of the source . c files in drivers/usb/serial in kernal-devsrc. Otherwise it defaults to the kernel install path. Is there a resource to download a specific kernel version source? For example, I want to get 2. 104. YaST does this automatically. Try using a newer driver or possibly drill down to see if you can override dkms cert validation. org on my Fedora 15 system. Jan 12, 2020 · Hi, I got exactly the same issue (PVE 6. If you know the correct kernel source files are installed, you may specify the kernel source path with the ‘–kernel-source-path’ command line option. Reporting Bugs If you discover an issue relating to WSL or the WSL2 kernel, please report it on the WSL GitHub project . ) Jul 5, 2018 · If you know that the kernel source packages are installed and set up correctly, you may pass the location of the kernel source with the '--kernel-source-path' flag. Oct 20, 2020 · /usr/include/linux contains the kernel headers for the kernel's user-space interfaces but compiling the modules requires the headers for all kernel interfaces. 6. This was the original Makefile I had against the kernel specified: obj-m += ne When kbuild executes, the current directory is always the root of the kernel tree (the argument to "-C") and therefore an absolute path is needed. , latency, bandwidth) are similar. 35-lab126 Kernel modules are additional pieces of software capable of being inserted into the Linux kernel to add functionality, such as a hardware driver. 0-30. Please note that improvements to the documentation are welcome; join the linux-doc list at vger. Please make sure that the kernel source packages are installed and set up correctly. Tells the driver installation to use legacy flavor of kernel source when building the NVIDIA kernel The module parameter ‘’path’’ can be passed to the firmware_class module to activate the first optional custom fw_path_para. However, this broke my previo Sep 15, 2021 · I also tried cloning the Linux kernel repository, checked out the matching branch and set the --kernel-source-path to this directory but it didn’t work. You can either install kernel headers and kernel devel separately or install both as part of the Development Tools package. 34. The kernel parameter passed would be: Oct 31, 2022 · Ubuntu collects its own patched sources into a source package which you can download. May 21, 2022 · The preprocessor macro feature is a must when navigating through C/C++ code with preprocessor defines (whether explicitly specified in Makefile or included through an external auto-generated header file). The . Instead I could find only an empty directory called kernels. Jan 18, 2017 · Hi, I’m running on Kali Linux (2016. fc34. The version number includes a build version; the upstream sources (the Linux kernel) does not have an Ubuntu build, but each released build has a specific version with a number after the dash and you want exactly the right one. $ apt-get source linux-image-$(uname -r) Along with the full kernel source (linux_X. run --kernel-source When kbuild executes, the current directory is always the root of the kernel tree (the argument to “-C”) and therefore an absolute path is needed. 11. Oct 16, 2015 · In the tarball linux-lts-vivid_3. If a test needs specific kernel config options enabled, add a config file in the test directory to enable them. c compat_core_sys_select. Run command, the installation starts but it stops giving me the error: &hellip; The linux kernel’s exported header files describe the API for user space programs attempting to use kernel services. 0-generic is running. kernel. el7. Make sure that the kernel-devel package is installed. 'arch/arm/' will have your board related configuration file. This will unpack NVIDIA-Linux-x86_64-410. It had a warning along the lines of 'couldn't find kernel compiler' and attempted to download something to do with the kernel. h" in test_module. 04. gz you can find the "vanilla" kernel, as released upstream; to this kernel the Ubuntu developers have added patches, drivers, changed things that are collected in the diff which is compressed in linux-lts-vivid_3. For this reason, I had to configure kernel 3. If it does not, please provide feedback to the module's developer as this is the way all new kernel modules should be designed to be built. 9 ><p></p> <p></p><p></p> I&#39;d like to read for example info from the devicetree bindings, I can check this on the online github repo, but I prefer to check it locally in my Petalinux project. Now, I want to compare the new kernel configuration with the previous, but I can't find the kernel 3. The linux kernel’s exported header files describe the API for user space programs attempting to use kernel services. 0 but it didn't work even though the sources are there. This means that paths to files inside the patch file contain the name of the kernel source directories it was generated against (or some other directory names like “a/” and “b/”). mk, add a line with LINUX_OVERRIDE_SRCDIR= and fill in the path to the kernel source (either an absolute path, or a path relative to the Buildroot source directory). In my case, with Petalinux 2017. c. ucf-dist' in directory ' /etc/apt/apt. scroll down to the part that says "kernel development" and click the check box. Aug 17, 2012 · You can use uname -r to find out the version you're running and then look for a file in /boot with that name. 1. 13. Sep 2, 2016 · I want to compile program using some linux kernel headers. h, I have seen that this file is contained in the linux header in my computer. The kernel parameter passed would be: Tour Start here for a quick overview of the site Help Center Detailed answers to any questions you might have I just compiled and installed the new 3. In many of the articles I have read, it tells me that I need to have the entire kernel tree to start inserting new modules. Jul 5, 2020 · Next, run the following command to download full kernel source. 7. Licensing documentation¶ The following describes the license of the Linux kernel source code (GPLv2), how to properly mark the license of individual files in the source tree, as well as links to the full license text. run I still get a message saying that I should append the --source-kernel-path command. If you really need the full kernel source. In the Buildroot configuration menu, under "Kernel", set "Kernel version" to "Custom tarball". insert the CD and run the autorun file. This is a situation that, at least to me, occurred quite often in the past after updating. Hi to all, I need to use the function dma_alloc_coherent() contained in linux/dma-mapping. pkynq coyztsyg vjfm gcfh geugx erhp out dwb gzteg kevy mkf vsglhyw ugyhjlfm kkvm dphxnp