Public bug reported: I encountered with crashes on top.
Reproduced Version: 2:4.0.4-4ubuntu3.2 (noble; Ubuntu 24.04 LTS) Affected Versions: All currently supported versions (I guess) It requires: * A libproc2-0 depending program like `top` (as I encountered) and `ps` (as reported upstream). * Printing certain columns like RUSER is enabled. Still, (as I explain later) this is a race condition issue and for reproduction, some randomness is involved (the upstream GitLab issue page provides patching method for reliable crash reproduction). 1. The system should be under high process creation/deletion pressure (where many processed are created and destroyed in a short period of time). 2. On top, reproducibility raises if higher number of processes are printed (i.e. the terminal is large and/or zoomed out) and the delay value (default: 3 seconds) is lower. On upstream, it is found to be a race condition issue on libproc2-0 (cause is discovered by me) and fixed by Jim Warner (the main commit is https://gitlab.com/procps- ng/procps/-/commit/a5708118a4f3184cb5a3e2faa219807e73f007d3). As suggested by Mike Gulick, there may be a possibility synchronizing with Debian (for backporting the fix). cf. https://gitlab.com/procps-ng/procps/-/issues/380 ** Affects: procps (Ubuntu) Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2120904 Title: top crashes on high process creation/deletion pressure To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/procps/+bug/2120904/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
