Hi Mathieu, On Tue, Aug 22, 2023 at 11:20 AM Mathieu Fluhr <mathieu.fl...@gmail.com> wrote: > > Hello, > > 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...).
No worries, thanks for reporting an issue in some way. (For the login issue, see login.ubuntu.com > Support > Other > "When I try to log in, I get an "OOPS" message. What should I do?") If this helps, please know that in the future, you can reach out to our kernel team specifically, kernel-t...@lists.ubuntu.com [2]. > > 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. > > 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. > > I applied it locally and rebuilt a new kernel, and I can confirm this fixes > the issue. > 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 ? > > Kind Regards, > Mathieu > > [1] > https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/lib/maple_tree.c?h=v6.1.45&id=254ee530286aeb6d6de93d05b2247153df590af1 Looking at the patch [1] ... """ maple_tree: make maple state reusable after mas_empty_area() commit 0257d9908d38c0b1669af4bb1bc4dbca1f273fe6 upstream. """ ... and the lunar/6.2-based kernel package git repo, it should be available in lunar-proposed. Could you please test it? $ git remote get-url origin git://git.launchpad.net/~ubuntu-kernel/ubuntu/+source/linux/+git/lunar $ git log --oneline origin/master-next -- lib/maple_tree.c | head -n1 a08052779ad6 maple_tree: make maple state reusable after mas_empty_area() $ git show a08052779ad6 | grep 'commit .* upstream' commit 0257d9908d38c0b1669af4bb1bc4dbca1f273fe6 upstream. $ git describe --contains a08052779ad6 Ubuntu-6.2.0-30.30~288 $ rmadison -a source linux | grep lunar linux | 6.2.0-20.20 | lunar | source linux | 6.2.0-27.28 | lunar-security | source linux | 6.2.0-27.28 | lunar-updates | source linux | 6.2.0-32.32 | lunar-proposed | source $ sudo add-apt-repository -yp proposed ubuntu@lunar:~$ apt policy linux-image-6.2.0-32-generic ... 100 http://archive.ubuntu.com/ubuntu lunar-proposed/main amd64 Packages 100 http://security.ubuntu.com/ubuntu lunar-proposed/main amd64 Packages $ sudo apt install linux-image-6.2.0-32-generic $ ... reboot cheers, [2] https://lists.ubuntu.com/mailman/listinfo/kernel-team > -- > Ubuntu-devel-discuss mailing list > Ubuntu-devel-discuss@lists.ubuntu.com > Modify settings or unsubscribe at: > https://lists.ubuntu.com/mailman/listinfo/ubuntu-devel-discuss -- Mauricio Faria de Oliveira -- Ubuntu-devel-discuss mailing list Ubuntu-devel-discuss@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-devel-discuss
