Public bug reported: When I change the display resolution, x11vnc crashes. This crash is reproducible only on Skylake CPUs.
The crash has been traced to a double-unlock of the X lock (non-TSX implementation of mutexes in glibc ignores this bug, while the TSX one crashes). The bug is already fixed upstream, please backport this patch to Ubuntu package: https://github.com/LibVNC/x11vnc/commit/011177796d2ce26ad3656d3c07031b81f43db796 ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: x11vnc 0.9.13-1.2build1 ProcVersionSignature: Ubuntu 4.4.0-22.40-generic 4.4.8 Uname: Linux 4.4.0-22-generic x86_64 ApportVersion: 2.20.1-0ubuntu2 Architecture: amd64 Date: Wed May 25 10:52:53 2016 JournalErrors: Error: command ['journalctl', '-b', '--priority=warning', '--lines=1000'] failed with exit code 1: Hint: You are currently not seeing messages from other users and the system. Users in the 'systemd-journal' group can see all messages. Pass -q to turn off this notice. No journal files were opened due to insufficient permissions. ProcEnviron: TERM=xterm SHELL=/bin/bash PATH=(custom, no user) LANG=en_US.UTF-8 XDG_RUNTIME_DIR=<set> SourcePackage: x11vnc UpgradeStatus: Upgraded to xenial on 2016-04-20 (34 days ago) ** Affects: x11vnc (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug patch xenial ** Patch added: "Patch that fixes the bug" https://bugs.launchpad.net/bugs/1585539/+attachment/4669991/+files/20_fix-double-unlock.diff -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1585539 Title: x11vnc crashes on Skylake CPUs when display resolution is changed To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/x11vnc/+bug/1585539/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
