I'm seeing this too. Every time it has locked up I've been scrolling in chrome.
[28680.993697] CPU: 2 PID: 4930 Comm: chrome Tainted: G OE 4.10.0-20-generic #22-Ubuntu [28680.993718] Hardware name: Dell Inc. Latitude E7450, BIOS A07 09/01/2015 As an experiment I've disabled hardware acceleration in chrome since all the traces show the drm module (Direct Rendering Module which is in charge of hardware acceleration). No lockups yet, but it is early days! I don't use compiz - I just use plain XFCE so no OpenGL needed for my desktop hopefully. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1677673 Title: System soft-freezes, BUG: unable to handle kernel NULL pointer dereference at 0000000000000018 in journalctl at gen8_ppgtt_alloc_page_directories.isra.38+0x115/0x250 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1677673/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
