<div dir="ltr">Hi Mauricio<div><br></div><div>I have just played for a few hours with the linux-image-6.2.0-32-generic package for jammy, and I think it works well:</div><div>I was able to compile several different AOSP versions that were all problematic with the 6.2.0-26 provided with 22.04.3, si I would say the -32 clearly fixes my issue :)</div><div><br></div><div>So, I guess I should just wait for -32 to come into the jammy-updates...</div><div>Thanks for the prompt answer and support!<br></div><div><br></div><div>Kind Regards,</div><div>Mathieu</div><div><br></div><div>PS: One thing that might be worth noticing so, is that when I installed the <span style="color:rgb(80,0,80)">linux-image-6.2.0-32-generic, the headers and modules-extra packages were not automatically installed, and I needed to instal them manually for my nvidia driver module to get re-compiled.</span></div><div><br></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Tue, Aug 22, 2023 at 9:35 PM Mauricio Faria de Oliveira <<a href="mailto:mfo@canonical.com">mfo@canonical.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">On Tue, Aug 22, 2023 at 4:30 PM Mauricio Faria de Oliveira<br> <<a href="mailto:mfo@canonical.com" target="_blank">mfo@canonical.com</a>> wrote:<br> ><br> > Hi Mathieu,<br> ><br> > On Tue, Aug 22, 2023 at 11:20 AM Mathieu Fluhr <<a href="mailto:mathieu.fluhr@gmail.com" target="_blank">mathieu.fluhr@gmail.com</a>> wrote:<br> > ><br> > > Hello,<br> > ><br> > > First of all, I apologize if this is not the right place to report a bug, but for some obscure reason, I cannot login to launchpad with my Ubuntu One account (I always end up on the "Ooops" page...).<br> ><br> > No worries, thanks for reporting an issue in some way.<br> > (For the login issue, see <a href="http://login.ubuntu.com" rel="noreferrer" target="_blank">login.ubuntu.com</a> > Support > Other > "When I<br> > try to log in, I get an "OOPS" message. What should I do?")<br> ><br> > If this helps, please know that in the future, you can reach out to<br> > our kernel team specifically, <a href="mailto:kernel-team@lists.ubuntu.com" target="_blank">kernel-team@lists.ubuntu.com</a> [2].<br> ><br> > ><br> > > I am compiling (daily) the Android OS (AOSP) which makes a heavy use of hardware resources and several parts of it relies on the mmap() system call. Updating to 22.04.3 last Thursday started to trigger several (non-consistent) build errors, all related to mmap(), claiming that it can't allocate memory.... which is not consistent with the fact that my workstation still had 50GB+ free RAM at that time.<br> > ><br> > > Digging a bit into the issue, I found out that it was a known issue, and that the fix has been merged in the 6.1 LTS kernel [1] but unfortunately not in 6.2, since the patch appeared after the last 6.2.16 release.<br> > ><br> > > I applied it locally and rebuilt a new kernel, and I can confirm this fixes the issue.<br> > > Could it be possible to think about applying it to the official 6.2 ubuntu package so that I don't have to always "downgrade" to the old 5.19 coming from 22.04.2 ?<br> > ><br> > > Kind Regards,<br> > > Mathieu<br> > ><br> > > [1] <a href="https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/lib/maple_tree.c?h=v6.1.45&id=254ee530286aeb6d6de93d05b2247153df590af1" rel="noreferrer" target="_blank">https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/lib/maple_tree.c?h=v6.1.45&id=254ee530286aeb6d6de93d05b2247153df590af1</a><br> ><br> > Looking at the patch [1] ...<br> > """<br> > maple_tree: make maple state reusable after mas_empty_area()<br> > commit 0257d9908d38c0b1669af4bb1bc4dbca1f273fe6 upstream.<br> > """<br> > ... and the lunar/6.2-based kernel package git repo, it should be<br> > available in lunar-proposed.<br> <br> Sorry, you're on jammy (22.04.x) with the 6.2 HWE kernel from lunar,<br> not on lunar.<br> It's also available in jammy-proposed; see below.<br> <br> ><br> > Could you please test it?<br> ><br> > $ git remote get-url origin<br> > git://<a href="http://git.launchpad.net/~ubuntu-kernel/ubuntu/+source/linux/+git/lunar" rel="noreferrer" target="_blank">git.launchpad.net/~ubuntu-kernel/ubuntu/+source/linux/+git/lunar</a><br> ><br> > $ git log --oneline origin/master-next -- lib/maple_tree.c | head -n1<br> > a08052779ad6 maple_tree: make maple state reusable after mas_empty_area()<br> ><br> > $ git show a08052779ad6 | grep 'commit .* upstream'<br> > commit 0257d9908d38c0b1669af4bb1bc4dbca1f273fe6 upstream.<br> ><br> > $ git describe --contains a08052779ad6<br> > Ubuntu-6.2.0-30.30~288<br> ><br> > $ rmadison -a source linux | grep lunar<br> > linux | 6.2.0-20.20 | lunar | source<br> > linux | 6.2.0-27.28 | lunar-security | source<br> > linux | 6.2.0-27.28 | lunar-updates | source<br> > linux | 6.2.0-32.32 | lunar-proposed | source<br> ><br> > $ sudo add-apt-repository -yp proposed<br> ><br> > ubuntu@lunar:~$ apt policy linux-image-6.2.0-32-generic<br> > ...<br> > 100 <a href="http://archive.ubuntu.com/ubuntu" rel="noreferrer" target="_blank">http://archive.ubuntu.com/ubuntu</a> lunar-proposed/main amd64 Packages<br> > 100 <a href="http://security.ubuntu.com/ubuntu" rel="noreferrer" target="_blank">http://security.ubuntu.com/ubuntu</a> lunar-proposed/main amd64 Packages<br> ><br> > $ sudo apt install linux-image-6.2.0-32-generic<br> > $ ... reboot<br> ><br> <br> $ rmadison -a source linux-hwe-6.2<br> linux-hwe-6.2 | 6.2.0-26.26~22.04.1 | jammy-security | source<br> linux-hwe-6.2 | 6.2.0-26.26~22.04.1 | jammy-updates | source<br> linux-hwe-6.2 | 6.2.0-32.32~22.04.1 | jammy-proposed | source<br> <br> $ rmadison -a amd64 linux-image-6.2.0-32-generic<br> linux-image-6.2.0-32-generic | 6.2.0-32.32~22.04.1 | jammy-proposed | amd64<br> linux-image-6.2.0-32-generic | 6.2.0-32.32 | lunar-proposed | amd64<br> <br> So, the steps above should work on jammy too.<br> <br> > cheers,<br> ><br> > [2] <a href="https://lists.ubuntu.com/mailman/listinfo/kernel-team" rel="noreferrer" target="_blank">https://lists.ubuntu.com/mailman/listinfo/kernel-team</a><br> ><br> > > --<br> > > Ubuntu-devel-discuss mailing list<br> > > <a href="mailto:Ubuntu-devel-discuss@lists.ubuntu.com" target="_blank">Ubuntu-devel-discuss@lists.ubuntu.com</a><br> > > Modify settings or unsubscribe at: <a href="https://lists.ubuntu.com/mailman/listinfo/ubuntu-devel-discuss" rel="noreferrer" target="_blank">https://lists.ubuntu.com/mailman/listinfo/ubuntu-devel-discuss</a><br> ><br> ><br> > --<br> > Mauricio Faria de Oliveira<br> <br> <br> <br> -- <br> Mauricio Faria de Oliveira<br> </blockquote></div>