Hello, I notice the same problem as reported by Aurélien. It happens daily at the time the unattended upgrades are scheduled. Sometimes it lasts only a minute, sometimes longer. But when it occurs at a moment that an unresponsive system is not acceptable, this causes problems. It consumes 90% memory (32 Gb RAM - swapfile is twice that size)! Until now I didn't notice an out of memory for that process, but it seems that it keeps growing until it fills the whole memory available.
Ubuntu 22.04.3 -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to unattended-upgrades in Ubuntu. https://bugs.launchpad.net/bugs/2029120 Title: /usr/bin/unattended-upgrade leaking and saturating RAM in 30 seconds Status in unattended-upgrades package in Ubuntu: New Bug description: Hello, We are facing a huge memory leak with unattended-upgrade binary. It appears that in around 20s, 2.9Go (80%) of RAM is consumed by the process making the system unresponsive (even a basic 'ps' command remains stuck). The swap was voluntarily disabled, but anyway I do not expect such a process to consume up to 3Go of RAM in nominal operation. Note: the logs were captured on a system configured in French. I manually translated some words below, which could explain it is not exactly what you would have on an english based system. Ubuntu release: Description: Ubuntu 22.04 LTS Release: 22.04 Package version: unattended-upgrades: Installed : 2.8ubuntu1 Candidate : 2.8ubuntu1 Version table : *** 2.8ubuntu1 500 500 http://fr.archive.ubuntu.com/ubuntu jammy/main amd64 Packages 500 http://fr.archive.ubuntu.com/ubuntu jammy/main i386 Packages 100 /var/lib/dpkg/status In attachment you will find 2 files: - periodic monitoring of available memory (with free -m) - periodic monitoring of highest memory consumer processes (with ps + sort on memory column) - screenshot of syslog (from a distinct run) showing that unattended-upgr went out of memory and was killed by OOM. You can also see that the run occured as part of the apt-daily service. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/unattended-upgrades/+bug/2029120/+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
