Confirming here we found today dead NGINX hanging on certbot renewals: Feb 09 15:04:50 focal kernel: Code: 48 89 43 10 48 83 c4 18 5b 5d 41 5c 41 5d 41 5e 41 5f c3 0f 1f 40 00 0f b6 7f 30 48 c1 e8 03 48 29 f8 48 89 c3 74 89 48 8b 02 <4c> 8b 68 10 4d 85 ed 0f 84 28 01 00 00 0f b6 40 30 49 c1 ed 03 49 Feb 09 15:04:50 focal kernel: nginx[937]: segfault at 10 ip 00007fa35cb73593 sp 00007ffcec0a17d0 error 4 in libperl.so.5.30.0[7fa35cb0b000+166000]
Killing off complete and restart helps on the port hogging as @wpcd said. This feels to drastic so if there's a patch ready let's backport please. root@focal:~# apt remove libnginx-mod-http-perl Reading package lists... Done Building dependency tree Reading state information... Done The following packages were automatically installed and are no longer required: libluajit-5.1-2 libluajit-5.1-common libnginx-mod-http-cache-purge libnginx-mod-http-fancyindex libnginx-mod-http-headers-more-filter libnginx-mod-http-lua libnginx-mod-http-ndk libnginx-mod-http-uploadprogress libnginx-mod-nchan Use 'apt autoremove' to remove them. The following packages will be REMOVED: libnginx-mod-http-perl @teward Can we confirm already this one brings remedy or caveats known? https://github.com/Perl/perl5/issues/17154 ** Bug watch added: github.com/Perl/perl5/issues #17154 https://github.com/Perl/perl5/issues/17154 -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to perl in Ubuntu. https://bugs.launchpad.net/bugs/1897561 Title: libperl.so.5.30.0 causes nginx to segfault Status in perl package in Ubuntu: Incomplete Bug description: [Steps to reproduce] 1) launch a focal container $ lxc launch images:ubuntu/focal focal-1897561 2) enter the container $ lxc shell focal-1897561 3) install libnginx-mod-http-perl # apt-get install -y nginx-core libnginx-mod-http-perl 4) check nginx journal # journalctl -fu nginx & 5) reload nginx 2-3 times # systemctl reload nginx Eventually you will see this from the journal: Oct 13 17:13:34 focal-1897561 systemd[1]: Reloaded A high performance web server and a reverse proxy server. Oct 13 17:13:35 focal-1897561 systemd[1]: nginx.service: Main process exited, code=dumped, status=11/SEGV Oct 13 17:13:35 focal-1897561 systemd[1]: nginx.service: Killing process 588 (nginx) with signal SIGKILL. Oct 13 17:13:35 focal-1897561 systemd[1]: nginx.service: Killing process 589 (nginx) with signal SIGKILL. Oct 13 17:13:35 focal-1897561 systemd[1]: nginx.service: Killing process 588 (nginx) with signal SIGKILL. Oct 13 17:13:35 focal-1897561 systemd[1]: nginx.service: Killing process 589 (nginx) with signal SIGKILL. Oct 13 17:13:35 focal-1897561 systemd[1]: nginx.service: Failed with result 'core-dump'. [Workaround] If libnginx-mod-http-perl is not needed, purging it and restarting nginx sidesteps the problem. [Original bug description] Ubuntu 20.04 LTS Looks that Perl 5.30 has bug that causes nginx to die, usually occurs after "service nginx reload" This looks like nginx, but it really is perl issue: https://github.com/Perl/perl5/issues/17154 Fix done in 5.32 (Perl5 commit ffffbf0) and people are asking backport to 5.30 to get fix also to nginx. Error: Sep 28 07:39:43 host kernel: [1340832.811014] nginx[3253005]: segfault at 10 ip 00007fbf3220d593 sp 00007ffd6bba6260 error 4 in libperl.so.5.30.0[7fbf321a5000+166000] Symptom: Nginx terminates --- ProblemType: Bug ApportVersion: 2.20.11-0ubuntu27.9 Architecture: amd64 CasperMD5CheckResult: skip DistroRelease: Ubuntu 20.04 Package: perl 5.30.0-9build1 PackageArchitecture: amd64 ProcEnviron: TERM=xterm PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=en_US.UTF-8 SHELL=/bin/bash ProcVersionSignature: Ubuntu 5.4.0-42.46-generic 5.4.44 Tags: focal uec-images Uname: Linux 5.4.0-42-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: N/A _MarkForUpload: True To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/perl/+bug/1897561/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
