** Description changed: + [Impact] + + * There is an error leak in the Xfwm4 compositor, causing the system to + run slowly after some uptime. + + [Test Plan] + + * Enable the Xfwm4 compositor if it is not already. Settings Manager > + Window Manager Tweaks > Compositor > Toggle on "Enable Display + Compositing". + + * Use the desktop for some time. Reportedly, zooming in and out + repeatedly can speed up the process. To zoom, hold Alt, and scroll up + and down. + + * The system should start performing poorly after some time, with xfwm4 + consuming much of the CPU resources. + + * Once fixed, the system should be much more performant after + performing these tasks. + + [Where problems could occur] + + * Regression potential should be relatively low, as the release between + 4.14.1 and 4.14.5 are bug releases. + + * With window managers, some changes could lead to different behavior + and other broken displays. Non-AMD graphics users should also test for + regressions. + + [Other Info] + + * Please see the Xfwm4 release notes for changes between 4.14.1 and 4.14.5: https://gitlab.xfce.org/xfce/xfwm4/-/blob/xfce-4.14/NEWS#L7-44 + + [Original Report] + After some uptime, xfwm4 is VERY slow at something, to the point that it's consuming 100% of CPU on a Xeon system and making the system entirely unusable. I don't know who is leaking what, but somebody is clearly leaking something. I don't have debug symbols, so this is the best I can get: Thread 1 (Thread 0x7f7b9d98af00 (LWP 27599)): #0 0x00007f7b9f1e8b7f in ?? () from /usr/lib/x86_64-linux-gnu/libgdk-3.so.0 #1 0x00007f7b9f1e8be2 in gdk_x11_display_error_trap_push () from /usr/lib/x86_64-linux-gnu/libgdk-3.so.0 #2 0x0000555c9582c771 in ?? () #3 0x00007f7b9ee75248 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 #4 0x00007f7b9ee7471e in g_main_context_dispatch () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 #5 0x00007f7b9ee74ad0 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 #6 0x00007f7b9ee74dc3 in g_main_loop_run () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 #7 0x00007f7b9f4d2c2d in gtk_main () from /usr/lib/x86_64-linux-gnu/libgtk-3.so.0 #8 0x0000555c958222ce in ?? () #9 0x00007f7b9e7861e3 in __libc_start_main (main=0x555c95821b50, argc=6, argv=0x7fffbeb91c18, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fffbeb91c08) at ../csu/libc-start.c:308 #10 0x0000555c9582249e in ?? () - or Thread 1 (Thread 0x7f7b9d98af00 (LWP 27599)): #0 0x00007f7b9f1e8b83 in ?? () from /usr/lib/x86_64-linux-gnu/libgdk-3.so.0 #1 0x00007f7b9f1e8be2 in gdk_x11_display_error_trap_push () from /usr/lib/x86_64-linux-gnu/libgdk-3.so.0 #2 0x0000555c9582e33a in ?? () #3 0x0000555c95834f1b in ?? () #4 0x0000555c958337d0 in ?? () #5 0x00007f7b9f1f0f4f in ?? () from /usr/lib/x86_64-linux-gnu/libgdk-3.so.0 #6 0x00007f7b9f1f133a in ?? () from /usr/lib/x86_64-linux-gnu/libgdk-3.so.0 #7 0x00007f7b9f1b9094 in gdk_display_get_event () from /usr/lib/x86_64-linux-gnu/libgdk-3.so.0 #8 0x00007f7b9f1f0fe6 in ?? () from /usr/lib/x86_64-linux-gnu/libgdk-3.so.0 #9 0x00007f7b9ee7484d in g_main_context_dispatch () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 #10 0x00007f7b9ee74ad0 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 #11 0x00007f7b9ee74dc3 in g_main_loop_run () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 #12 0x00007f7b9f4d2c2d in gtk_main () from /usr/lib/x86_64-linux-gnu/libgtk-3.so.0 #13 0x0000555c958222ce in ?? () #14 0x00007f7b9e7861e3 in __libc_start_main (main=0x555c95821b50, argc=6, argv=0x7fffbeb91c18, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fffbeb91c08) at ../csu/libc-start.c:308 #15 0x0000555c9582249e in ?? () ProblemType: Bug DistroRelease: Ubuntu 19.10 Package: xfwm4 4.14.0-1 ProcVersionSignature: Ubuntu 5.3.0-26.28-generic 5.3.13 Uname: Linux 5.3.0-26-generic x86_64 NonfreeKernelModules: nvidia_modeset nvidia ApportVersion: 2.20.11-0ubuntu8.4 Architecture: amd64 CurrentDesktop: XFCE Date: Mon Feb 24 23:18:34 2020 InstallationDate: Installed on 2019-01-21 (399 days ago) InstallationMedia: Xubuntu 18.10 "Cosmic Cuttlefish" - Release amd64 (20181017.2) SourcePackage: xfwm4 UpgradeStatus: Upgraded to eoan on 2019-11-10 (106 days ago)
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1864613 Title: xfwm4 very, very slow - leaking something? To manage notifications about this bug go to: https://bugs.launchpad.net/xfwm4/+bug/1864613/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
