From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from simark.ca by simark.ca with LMTP id 6vjuOpDnl2bgwykAWB0awg (envelope-from ) for ; Wed, 17 Jul 2024 11:47:28 -0400 Authentication-Results: simark.ca; dkim=pass (2048-bit key; unprotected) header.d=lists.lttng.org header.i=@lists.lttng.org header.a=rsa-sha256 header.s=default header.b=c+ljurE3; dkim-atps=neutral Received: by simark.ca (Postfix, from userid 112) id E3F701E0C3; Wed, 17 Jul 2024 11:47:28 -0400 (EDT) Received: from lists.lttng.org (lists.lttng.org [167.114.26.123]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (prime256v1) server-digest SHA256) (No client certificate requested) by simark.ca (Postfix) with ESMTPS id 896E91E097 for ; Wed, 17 Jul 2024 11:47:26 -0400 (EDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=lists.lttng.org; s=default; t=1721231245; bh=QwwKUDHbJA/0fmzbLUc0T8FWOMpd8+0/u4amsLjgrWg=; h=References:In-Reply-To:Date:To:Cc:Subject:List-Id: List-Unsubscribe:List-Archive:List-Post:List-Help:List-Subscribe: From:Reply-To:From; b=c+ljurE3pWiNbxAWd0aRUTCkkArknREiM8Pj4vP0PAFWRhY08vkPmZUrzNHkOysa5 NRmvPZWZ3tZwVfHW61/k46qVrlNkc0vS1ql6WX0rRuUyetK93Xw066iFW4kLoCq2ml dYcJxdtLNy589qlhKdkDs4+ap4mIHTjUAmxt1L7MfkwUJzehf7hRKjuKXCedIbMA9F Vz/ej1Njs2RGJ/sWdgMBxYymJtjcGwXy42idFMVjJRwfIZDlsHzkI87ABX3ZMv2dh+ WA7BTHvKrDuqZWbbGyiq9v3b2Xsh6rFSczUpOieHTjjZHSLS3SmUFQ2RZFLvHKwdkt FTQFLame7x9QA== Received: from lists-lttng01.efficios.com (localhost [IPv6:::1]) by lists.lttng.org (Postfix) with ESMTP id 4WPL0s47Q5z12LL; Wed, 17 Jul 2024 11:47:25 -0400 (EDT) Received: from mail-pg1-x532.google.com (mail-pg1-x532.google.com [IPv6:2607:f8b0:4864:20::532]) by lists.lttng.org (Postfix) with ESMTPS id 4WPL0r2MZkz12LG for ; Wed, 17 Jul 2024 11:47:24 -0400 (EDT) Received: by mail-pg1-x532.google.com with SMTP id 41be03b00d2f7-6bce380eb9bso3860104a12.0 for ; Wed, 17 Jul 2024 08:47:24 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1721231243; x=1721836043; h=cc:to:subject:message-id:date:from:in-reply-to:references :mime-version:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=YLtVy7CTmxschaaiyd7xHNqZXEu0DgitUj7UTtgDAbY=; b=HEkXDdEFS9W5qw2k0RZtVMpaCicv4EbaOAMxaQxkRCn+6cJK+xqVjykJn3BBf8Sq9K eIPntOw5ri4z4dU+K6j28uEGDn+4tFwoRyLnGpFgLpoYc4CPjXg0Rjuf5txNUnDNvb2W dB1Jk5ygoS9DDMwqq9g9/ucwlwxCln4UPyFPRVrnt3W7Ye1QTqCL5qbxn03W49Sc8RYb MCOwILkGzU+EQXw/2ra2W3S/SOdrDwtgNKe3//fJkF9Vz+5Cy2SI276P4nPeQh285I92 XXfEECUTkoaMnwb07LGsw71/yL6TvajxjuRysQEg6PYQPdMF+D9kt4B7N67QcpYmypJa I0OQ== X-Gm-Message-State: AOJu0YwHn/q3hvmsL4c8hu90pqf/r9bzdp1U1PulWB/3bwMvLh5Hf+ea /45qcv/7bjWHYkxi5fwl/VqK9vv1TUqthmX9F3bvCCfVWNNxzDNGRh4xaIXRaH0HUgNhXVCRGrA 8spPc0/iyVqUKFoAcyxcPNS7+1QWkyiAa X-Google-Smtp-Source: AGHT+IFBw2SckO6KnlgF82WrCt0bt9lKOtxfMjzjJ6b4SBKtFun3GPoSzCPZSCrsarhiBomDIMTpxUPDamP6GmcQJiM= X-Received: by 2002:a05:6a20:12c5:b0:1c0:ec1c:f4a0 with SMTP id adf61e73a8af0-1c3fdd6b4f2mr2765154637.38.1721231242797; Wed, 17 Jul 2024 08:47:22 -0700 (PDT) MIME-Version: 1.0 References: <6deffa1d-4d46-4445-a510-a3aac271cc80@efficios.com> <211e6d9f-834d-4511-b315-7844a5c04824@efficios.com> <5b7fc307-a52a-4e54-84df-294600454686@efficios.com> In-Reply-To: Date: Wed, 17 Jul 2024 11:47:11 -0400 Message-ID: To: Kienan Stewart Cc: lttng-dev@lists.lttng.org Subject: Re: [lttng-dev] loading modules with modprobe X-BeenThere: lttng-dev@lists.lttng.org X-Mailman-Version: 2.1.39 Precedence: list List-Id: LTTng development list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , From: =?utf-8?q?Fran=C3=A7ois_Belias_via_lttng-dev?= Reply-To: =?UTF-8?Q?Fran=C3=A7ois_Belias?= Content-Type: multipart/mixed; boundary="===============7787348023408380498==" Errors-To: lttng-dev-bounces@lists.lttng.org Sender: "lttng-dev" --===============7787348023408380498== Content-Type: multipart/alternative; boundary="000000000000cdaa67061d73608f" --000000000000cdaa67061d73608f Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable 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, =C3=A0 11 h 46, Fran=C3=A7ois Belias a =C3=A9crit : > 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 Mo= n > 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 |gr= ep > 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 wi= th > 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, =C3=A0 10 h 55, Kienan Stewart > a =C3=A9crit : > >> Hi Fran=C3=A7ois, >> >> On 7/16/24 4:34 PM, Fran=C3=A7ois 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 compile= s >> > 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 believ= e >> > should be available. Could this be due to not using my full kernel tre= e >> > 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 th= e >> > newest version (5.15.0.116.116)/*`, which doesn't match my current >> > kernel version. So, I downloaded it directly from kernel.org >> > using this command: `wget >> > 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 al= l >> > 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 >> > --000000000000cdaa67061d73608f Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable
Hello, Kienan


Right. Which kernel are you = actually running at this time? You can check
using: `uname -a`
Linux philippe 6.5.0-41-generic #41~22.04.2-Ubuntu SMP PREE= MPT_DYNAMIC Mon Jun =C2=A03 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 is
possible to check that same info the linux-source package: `dpkg= -l |
grep linux-source`.
ii =C2=A0linux-source= =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2= =A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A05.15.0.116.116 =C2=A0 = =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2= =A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0all =C2=A0 =C2=A0 =C2=A0 =C2= =A0 =C2=A0Linux kernel source with Ubuntu patches
ii =C2=A0linux-source-= 5.15.0=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0= =C2=A0 =C2=A05.15.0-116.126 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2= =A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 = =C2=A0all =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0Linux kernel source for version= 5.15.0 with Ubuntu patches
ii =C2=A0linux-source-6.5.0=C2=A0 =C2=A0 =C2= =A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 6.5.0-44.44~22.= 04.1 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 = =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 all =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0Li= nux kernel source for version 6.5.0 with Ubuntu patches
Could you run either `a= pt-cache policy` or `apt policy` and `apt-mark
showhold` in order to kno= w which sources you have configured.
For this part= ,=C2=A0apt-mark showhold=C2=A0gave me nothing I don't kno= w what is means.

I am looking at the links, but no= thing seems to match my kernel version.=C2=A0

Than= ks for your assistance.

Le mer. 17 juill. 2024, =C3=A0 11 h 46, Fran= =C3=A7ois Belias <beliasossim@g= mail.com> a =C3=A9crit=C2=A0:
Hello, Kienan


=
Right. Which kernel are you actually running at this time? Yo= u can check
using: `uname -a`
Linux philippe 6.5.0-41-= generic #41~22.04.2-Ubuntu SMP PREEMPT_DYNAMIC Mon Jun =C2=A03 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 is
possible= to check that same info the linux-source package: `dpkg -l |
grep linux= -source`.
ii =C2=A0linux-source=C2=A0 =C2=A0 =C2=A0 =C2= =A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 = =C2=A0 =C2=A0 =C2=A0 =C2=A05.15.0.116.116 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2= =A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 = =C2=A0 =C2=A0 =C2=A0all =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0Linux kernel sour= ce with Ubuntu patches
ii =C2=A0linux-source-5.15.0=C2=A0 =C2=A0 =C2=A0 = =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A05.15.0-116.12= 6 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2= =A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0all =C2=A0 =C2=A0 =C2= =A0 =C2=A0 =C2=A0Linux kernel source for version 5.15.0 with Ubuntu patches=
ii =C2=A0linux-source-6.5.0=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 = =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 6.5.0-44.44~22.04.1 =C2=A0 =C2=A0 =C2=A0= =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2= =A0 =C2=A0 all =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0Linux kernel source for ve= rsion 6.5.0 with Ubuntu patches
Could you run either `apt-= cache policy` or `apt policy` and `apt-mark
showhold` in order to know w= hich sources you have configured.
For this part, ap= t-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.=C2=A0

Thanks for your assistan= ce.

Le mer. 17 juill. 2024, =C3=A0 10 h 55, Kienan Stewart <kstewart@efficios.com> a =C3=A9crit=C2=A0:
Hi Fran=C3=A7ois,

On 7/16/24 4:34 PM, Fran=C3=A7ois Belias wrote:
> Hello Kienan,
>
> When I proceed with the following steps:
>
> ```
> # Warning: this removes all untracked content from the lttng-modules <= br> > 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 co= mpiles
> 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 be= lieve
> should be available. Could this be due to not using my full kernel tre= e
> 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?*
>=C2=A0 =C2=A0 I initially attempted `sudo apt-get update && sud= o apt-get install
> linux-source`, but it gave me this answer */linux-source is already th= e
> 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/k= ernel/v6.x/linux-6.5.tar.xz`
> <https://cdn.kernel.org/pub/lin= ux/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?*
>=C2=A0 =C2=A0 Running `lsb_release -a` gives me:
>=C2=A0 =C2=A0 ```
>=C2=A0 =C2=A0 No LSB modules are available.
>=C2=A0 =C2=A0 Distributor ID: Ubuntu
>=C2=A0 =C2=A0 Description: =C2=A0 =C2=A0Ubuntu 22.04.4 LTS
>=C2=A0 =C2=A0 Release: =C2=A0 =C2=A0 =C2=A0 =C2=A022.04
>=C2=A0 =C2=A0 Codename: =C2=A0 =C2=A0 =C2=A0 jammy
>=C2=A0 =C2=A0 ```
>
> - *Assuming your distribution has kernel packages, which do you have <= br> > installed, and do you have the corresponding kernel headers package > installed?*
>
>=C2=A0 =C2=A0 Running `dpkg -l | grep linux-image` shows these installe= d packages:
>=C2=A0 =C2=A0 ```
>=C2=A0 =C2=A0 ii =C2=A0linux-image-5.15.0-116-generic =C2=A0 =C2=A0 =C2= =A0 =C2=A0 =C2=A0 5.15.0-116.126=C2=A0 =C2=A0 =C2=A0
>=C2=A0 =C2=A0amd64 =C2=A0 Signed kernel image generic
>=C2=A0 =C2=A0 ii =C2=A0linux-image-6.5.0-28-generic =C2=A0 =C2=A0 =C2= =A0 =C2=A0 =C2=A0 =C2=A0 6.5.0-28.29~22.04.1
>=C2=A0 =C2=A0amd64 =C2=A0 Signed kernel image generic
>=C2=A0 =C2=A0 ii =C2=A0linux-image-6.5.0-41-generic =C2=A0 =C2=A0 =C2= =A0 =C2=A0 =C2=A0 =C2=A0 6.5.0-41.41~22.04.2
>=C2=A0 =C2=A0amd64 =C2=A0 Signed kernel image generic
>=C2=A0 =C2=A0 ii =C2=A0linux-image-6.5.0-44-generic =C2=A0 =C2=A0 =C2= =A0 =C2=A0 =C2=A0 =C2=A0 6.5.0-44.44~22.04.1
>=C2=A0 =C2=A0amd64 =C2=A0 Signed kernel image generic
>=C2=A0 =C2=A0 ii =C2=A0linux-image-generic =C2=A0 =C2=A0 =C2=A0 =C2=A0 = =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A05.15.0.116.116=C2=A0 =C2=A0= =C2=A0
>=C2=A0 =C2=A0amd64 =C2=A0 Generic Linux kernel image
>=C2=A0 =C2=A0 ii =C2=A0linux-image-generic-hwe-22.04 =C2=A0 =C2=A0 =C2= =A0 =C2=A0 =C2=A0 =C2=A06.5.0.44.44~22.04.1
>=C2=A0 =C2=A0amd64 =C2=A0 Generic Linux kernel image
>=C2=A0 =C2=A0 ```
>
>=C2=A0 =C2=A0 And `dpkg -l | grep linux-headers` shows these installed = header packages:
>=C2=A0 =C2=A0 ```
>=C2=A0 =C2=A0 ii =C2=A0linux-headers-5.15.0-116 =C2=A0 =C2=A0 =C2=A0 = =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 5.15.0-116.126 =C2=A0 =C2=A0 =C2=A0all <= br> >=C2=A0 =C2=A0 =C2=A0 Header files related to Linux kernel version 5.15.= 0
>=C2=A0 =C2=A0 ii =C2=A0linux-headers-5.15.0-116-generic =C2=A0 =C2=A0 = =C2=A0 =C2=A0 5.15.0-116.126=C2=A0 =C2=A0 =C2=A0
>=C2=A0 =C2=A0amd64 =C2=A0 Linux kernel headers for version 5.15.0 on 64= bit x86 SMP
>=C2=A0 =C2=A0 ii =C2=A0linux-headers-6.5.0-28-generic =C2=A0 =C2=A0 =C2= =A0 =C2=A0 =C2=A0 6.5.0-28.29~22.04.1
>=C2=A0 =C2=A0amd64 =C2=A0 Linux kernel headers for version 6.5.0 on 64 = bit x86 SMP
>=C2=A0 =C2=A0 ii =C2=A0linux-headers-6.5.0-41-generic =C2=A0 =C2=A0 =C2= =A0 =C2=A0 =C2=A0 6.5.0-41.41~22.04.2
>=C2=A0 =C2=A0amd64 =C2=A0 Linux kernel headers for version 6.5.0 on 64 = bit x86 SMP
>=C2=A0 =C2=A0 ii =C2=A0linux-headers-6.5.0-44-generic =C2=A0 =C2=A0 =C2= =A0 =C2=A0 =C2=A0 6.5.0-44.44~22.04.1
>=C2=A0 =C2=A0amd64 =C2=A0 Linux kernel headers for version 6.5.0 on 64 = bit x86 SMP
>=C2=A0 =C2=A0 ii =C2=A0linux-headers-generic =C2=A0 =C2=A0 =C2=A0 =C2= =A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A05.15.0.116.116=C2=A0 =C2=A0 = =C2=A0
>=C2=A0 =C2=A0amd64 =C2=A0 Generic Linux kernel headers
>=C2=A0 =C2=A0 ii =C2=A0linux-headers-generic-hwe-22.04 =C2=A0 =C2=A0 = =C2=A0 =C2=A0 =C2=A06.5.0.44.44~22.04.1
>=C2=A0 =C2=A0amd64 =C2=A0 Generic Linux kernel headers
>=C2=A0 =C2=A0 ```
>

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. Se= e
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.launch= pad.net/~ubuntu-kernel/ubuntu/+source/linux/+git/jammy/refs/tags

thanks,
kienan
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