Hello, Kienan
*Right. Which kernel are you actually running at this time? You can checkusing: `uname -a`* Linux philippe 6.5.0-41-generic #41~22.04.2-Ubuntu SMP PREEMPT_DYNAMIC Mon Jun 3 11:32:55 UTC 2 x86_64 x86_64 x86_64 GNU/Linux *Since you've got a few different images and headers installed, it ispossible to check that same info the linux-source package: `dpkg -l |grep linux-source`.* ii linux-source 5.15.0.116.116 all Linux kernel source with Ubuntu patches ii linux-source-5.15.0 5.15.0-116.126 all Linux kernel source for version 5.15.0 with Ubuntu patches ii linux-source-6.5.0 6.5.0-44.44~22.04.1 all Linux kernel source for version 6.5.0 with Ubuntu patches *Could you run either `apt-cache policy` or `apt policy` and `apt-markshowhold` in order to know which sources you have configured.* For this part, *apt-mark showhold* gave me nothing I don't know what is means. I am looking at the links, but nothing seems to match my kernel version. Thanks for your assistance. Le mer. 17 juill. 2024, à 11 h 46, François Belias <beliasos...@gmail.com> a écrit : > Hello, Kienan > > > > *Right. Which kernel are you actually running at this time? You can > checkusing: `uname -a`* > Linux philippe 6.5.0-41-generic #41~22.04.2-Ubuntu SMP PREEMPT_DYNAMIC Mon > Jun 3 11:32:55 UTC 2 x86_64 x86_64 x86_64 GNU/Linux > > > > *Since you've got a few different images and headers installed, it > ispossible to check that same info the linux-source package: `dpkg -l |grep > linux-source`.* > ii linux-source 5.15.0.116.116 > all Linux kernel source with Ubuntu > patches > ii linux-source-5.15.0 5.15.0-116.126 > all Linux kernel source for version 5.15.0 > with Ubuntu patches > ii linux-source-6.5.0 6.5.0-44.44~22.04.1 > all Linux kernel source for version 6.5.0 with > Ubuntu patches > > *Could you run either `apt-cache policy` or `apt policy` and > `apt-markshowhold` in order to know which sources you have configured.* > For this part, *apt-mark showhold* gave me nothing I don't know what is > means. > > I am looking at the links, but nothing seems to match my kernel version. > > Thanks for your assistance. > > Le mer. 17 juill. 2024, à 10 h 55, Kienan Stewart <kstew...@efficios.com> > a écrit : > >> Hi François, >> >> On 7/16/24 4:34 PM, François Belias wrote: >> > Hello Kienan, >> > >> > When I proceed with the following steps: >> > >> > ``` >> > # Warning: this removes all untracked content from the lttng-modules >> > directory >> > cd /path/to/lttng-modules-source >> > git clean -dxf >> > >> > make >> > sudo make modules_install >> > sudo depmod -a >> > ``` >> > >> > I encounter a warning in >> > `/home/philippe/lttng-modules/src/probes/Kbuild:79` stating "File >> > ./arch/x86/kvm/lapic.h not found. Probe 'kvm' x86-specific is disabled. >> > Use full kernel source tree to enable it." Although everything compiles >> > fine and I'm able to load modules, when I execute `sudo lttng list -k`, >> > I don't see the tracepoints `kvm_entry` and `kvm_exit`, which I believe >> > should be available. Could this be due to not using my full kernel tree >> > during compilation? >> >> >> Exactly. Those probes depend on having the full kernel source as they >> require private headers which aren't shipped as part of the >> `linux-headers` package. >> >> > >> > Here are the answers to your questions: >> > >> > - *Where did `/usr/src/linux-source-6.5.0` come from?* >> > I initially attempted `sudo apt-get update && sudo apt-get install >> > linux-source`, but it gave me this answer */linux-source is already the >> > newest version (5.15.0.116.116)/*`, which doesn't match my current >> > kernel version. So, I downloaded it directly from kernel.org >> > <http://kernel.org> using this command: `wget >> > https://cdn.kernel.org/pub/linux/kernel/v6.x/linux-6.5.tar.xz` >> <https://cdn.kernel.org/pub/linux/kernel/v6.x/linux-6.5.tar.xz> >> > <https://cdn.kernel.org/pub/linux/kernel/v6.x/linux-6.5.tar.xz` >> <https://cdn.kernel.org/pub/linux/kernel/v6.x/linux-6.5.tar.xz>>. >> > >> >> Right. Which kernel are you actually running at this time? You can check >> using: `uname -a` >> >> In any case, Linux upstream 6.5 is not the same as Ubuntus's 6.5. >> >> > - *Which Linux distribution and version are you using?* >> > Running `lsb_release -a` gives me: >> > ``` >> > No LSB modules are available. >> > Distributor ID: Ubuntu >> > Description: Ubuntu 22.04.4 LTS >> > Release: 22.04 >> > Codename: jammy >> > ``` >> > >> > - *Assuming your distribution has kernel packages, which do you have >> > installed, and do you have the corresponding kernel headers package >> > installed?* >> > >> > Running `dpkg -l | grep linux-image` shows these installed packages: >> > ``` >> > ii linux-image-5.15.0-116-generic 5.15.0-116.126 >> > amd64 Signed kernel image generic >> > ii linux-image-6.5.0-28-generic 6.5.0-28.29~22.04.1 >> > amd64 Signed kernel image generic >> > ii linux-image-6.5.0-41-generic 6.5.0-41.41~22.04.2 >> > amd64 Signed kernel image generic >> > ii linux-image-6.5.0-44-generic 6.5.0-44.44~22.04.1 >> > amd64 Signed kernel image generic >> > ii linux-image-generic 5.15.0.116.116 >> > amd64 Generic Linux kernel image >> > ii linux-image-generic-hwe-22.04 6.5.0.44.44~22.04.1 >> > amd64 Generic Linux kernel image >> > ``` >> > >> > And `dpkg -l | grep linux-headers` shows these installed header >> packages: >> > ``` >> > ii linux-headers-5.15.0-116 5.15.0-116.126 all >> > Header files related to Linux kernel version 5.15.0 >> > ii linux-headers-5.15.0-116-generic 5.15.0-116.126 >> > amd64 Linux kernel headers for version 5.15.0 on 64 bit x86 SMP >> > ii linux-headers-6.5.0-28-generic 6.5.0-28.29~22.04.1 >> > amd64 Linux kernel headers for version 6.5.0 on 64 bit x86 SMP >> > ii linux-headers-6.5.0-41-generic 6.5.0-41.41~22.04.2 >> > amd64 Linux kernel headers for version 6.5.0 on 64 bit x86 SMP >> > ii linux-headers-6.5.0-44-generic 6.5.0-44.44~22.04.1 >> > amd64 Linux kernel headers for version 6.5.0 on 64 bit x86 SMP >> > ii linux-headers-generic 5.15.0.116.116 >> > amd64 Generic Linux kernel headers >> > ii linux-headers-generic-hwe-22.04 6.5.0.44.44~22.04.1 >> > amd64 Generic Linux kernel headers >> > ``` >> > >> >> Since you've got a few different images and headers installed, it is >> possible to check that same info the linux-source package: `dpkg -l | >> grep linux-source`. >> >> Maybe one thing tripping this process up is that you don't have an apt >> source that provides linux-source that matches the kernel you are using. >> Could you run either `apt-cache policy` or `apt policy` and `apt-mark >> showhold` in order to know which sources you have configured. >> >> There are also alternative sources for the full source tree: >> >> - You could download the specific package from packages.ubuntu.com. See >> https://packages.ubuntu.com and use `apt install >> ./downloaded_package.deb` >> >> - You could clone the kernel source for Ubuntu and checkout the >> appropriate tag. See >> >> https://git.launchpad.net/~ubuntu-kernel/ubuntu/+source/linux/+git/jammy/refs/tags >> >> thanks, >> kienan >> >
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