I also faced this issue on 20.04 My ibus-related packages:
gir1.2-ibus-1.0:amd64 1.5.22-2ubuntu2.1 ibus 1.5.22-2ubuntu2.1 ibus-data 1.5.22-2ubuntu2.1 ibus-gtk:amd64 1.5.22-2ubuntu2.1 ibus-gtk3:amd64 1.5.22-2ubuntu2.1 ibus-table 1.9.25-1 libibus-1.0-5:amd64 1.5.22-2ubuntu2.1 libibus-1.0-dev:amd64 1.5.22-2ubuntu2.1 libusageenvironment1 2014.01.13-1 libusageenvironment3:amd64 2020.01.19-1build1 libusermetricsinput1:amd64 1.1.1+15.10.20150915-0ubuntu1 libusermetricsoutput1:amd64 1.1.1+15.10.20150915-0ubuntu1 libusrsctp1:amd64 0.9.3.0+20190901-1 libustr-1.0-1:amd64 1.0.4-6 python3-ibus-1.0 1.5.22-2ubuntu2.1 qtdeclarative5-usermetrics0.1 1.1.1+15.10.20150915-0ubuntu1 Core dumps of both processes: https://mega.nz/file/B4ABGIxY#0dWUVbGpuKK- FKuuIvwxZv_-wog8tII6Enj_QdmKnEw ** Attachment added: "2021_07_29_10-57-19.png" https://bugs.launchpad.net/ubuntu/+source/ibus/+bug/1271839/+attachment/5514623/+files/2021_07_29_10-57-19.png -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1271839 Title: ibus-ui-gtk3 big memory leak To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ibus/+bug/1271839/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs