I had this exact problem today (same message in `dmesg`) which I found while investigating a hang of anything CUDA-related, appearing out of nowhere after my setup had been working for a while.
I was able to fix it by adding `acpi=ht` (or `acpi=off`) to my GRUB_CMDLINE_LINUX_DEFAULT in /etc/default/grub, running `sudo update- grub`, and rebooting. I've got two nVidia 1080tis in this box, and I'm using the nvidia-396 driver. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to nvidia-graphics-drivers-390 in Ubuntu. https://bugs.launchpad.net/bugs/1767932 Title: nvidia-390 causes kernel hang Status in nvidia-graphics-drivers-390 package in Ubuntu: Confirmed Bug description: Here is the hung task: Apr 30 15:21:50 michael-desktop-ubuntu kernel: INFO: task nvidia-modeset:243 blocked for more than 120 seconds. Apr 30 15:21:50 michael-desktop-ubuntu kernel: Tainted: P IOE 4.15.0-20-generic #21-Ubuntu Apr 30 15:21:50 michael-desktop-ubuntu kernel: "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. Apr 30 15:21:50 michael-desktop-ubuntu kernel: nvidia-modeset D 0 243 2 0x80000000 Apr 30 15:21:50 michael-desktop-ubuntu kernel: Call Trace: Apr 30 15:21:50 michael-desktop-ubuntu kernel: __schedule+0x297/0x8b0 Apr 30 15:21:50 michael-desktop-ubuntu kernel: schedule+0x2c/0x80 Apr 30 15:21:50 michael-desktop-ubuntu kernel: schedule_timeout+0x1cf/0x350 Apr 30 15:21:50 michael-desktop-ubuntu kernel: ? schedule_timeout+0x1cf/0x350 Apr 30 15:21:50 michael-desktop-ubuntu kernel: ? __slab_free+0x14d/0x2c0 Apr 30 15:21:50 michael-desktop-ubuntu kernel: __down+0x91/0xe0 Apr 30 15:21:50 michael-desktop-ubuntu kernel: down+0x41/0x50 Apr 30 15:21:50 michael-desktop-ubuntu kernel: ? down+0x41/0x50 Apr 30 15:21:50 michael-desktop-ubuntu kernel: nvkms_kthread_q_callback+0x65/0xe0 [nvidia_modeset] Apr 30 15:21:50 michael-desktop-ubuntu kernel: _main_loop+0x76/0x140 [nvidia] Apr 30 15:21:50 michael-desktop-ubuntu kernel: kthread+0x121/0x140 Apr 30 15:21:50 michael-desktop-ubuntu kernel: ? _raw_q_schedule+0x80/0x80 [nvidia] Apr 30 15:21:50 michael-desktop-ubuntu kernel: ? kthread_create_worker_on_cpu+0x70/0x70 Apr 30 15:21:50 michael-desktop-ubuntu kernel: ret_from_fork+0x35/0x40 uname: Linux michael-desktop-ubuntu 4.15.0-20-generic #21-Ubuntu SMP Tue Apr 24 06:16:15 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux Drivers: ii libnvidia-cfg1-390:amd64 390.48-0ubuntu3 amd64 NVIDIA binary OpenGL/GLX configuration library ii libnvidia-common-390 390.48-0ubuntu3 all Shared files used by the NVIDIA libraries ii libnvidia-compute-390:amd64 390.48-0ubuntu3 amd64 NVIDIA libcompute package ii libnvidia-compute-390:i386 390.48-0ubuntu3 i386 NVIDIA libcompute package ii libnvidia-decode-390:amd64 390.48-0ubuntu3 amd64 NVIDIA Video Decoding runtime libraries ii libnvidia-decode-390:i386 390.48-0ubuntu3 i386 NVIDIA Video Decoding runtime libraries ii libnvidia-encode-390:amd64 390.48-0ubuntu3 amd64 NVENC Video Encoding runtime library ii libnvidia-encode-390:i386 390.48-0ubuntu3 i386 NVENC Video Encoding runtime library ii libnvidia-fbc1-390:amd64 390.48-0ubuntu3 amd64 NVIDIA OpenGL-based Framebuffer Capture runtime library ii libnvidia-fbc1-390:i386 390.48-0ubuntu3 i386 NVIDIA OpenGL-based Framebuffer Capture runtime library ii libnvidia-gl-390:amd64 390.48-0ubuntu3 amd64 NVIDIA OpenGL/GLX/EGL/GLES GLVND libraries and Vulkan ICD ii libnvidia-gl-390:i386 390.48-0ubuntu3 i386 NVIDIA OpenGL/GLX/EGL/GLES GLVND libraries and Vulkan ICD ii libnvidia-ifr1-390:amd64 390.48-0ubuntu3 amd64 NVIDIA OpenGL-based Inband Frame Readback runtime library ii libnvidia-ifr1-390:i386 390.48-0ubuntu3 i386 NVIDIA OpenGL-based Inband Frame Readback runtime library ii nvidia-compute-utils-390 390.48-0ubuntu3 amd64 NVIDIA compute utilities ii nvidia-dkms-390 390.48-0ubuntu3 amd64 NVIDIA DKMS package ii nvidia-driver-390 390.48-0ubuntu3 amd64 NVIDIA driver metapackage ii nvidia-headless-no-dkms-390 390.48-0ubuntu3 amd64 NVIDIA headless metapackage - no DKMS ii nvidia-kernel-common-390 390.48-0ubuntu3 amd64 Shared files used with the kernel module ii nvidia-kernel-source-390 390.48-0ubuntu3 amd64 NVIDIA kernel source package ii nvidia-prime 0.8.8 all Tools to enable NVIDIA's Prime ii nvidia-settings 390.42-0ubuntu1 amd64 Tool for configuring the NVIDIA graphics driver ii nvidia-utils-390 390.48-0ubuntu3 amd64 NVIDIA driver support binaries ii xserver-xorg-video-nvidia-390 390.48-0ubuntu3 amd64 NVIDIA binary Xorg driver I can't reliably reproduce, but it happens fairly often after reboot (circa 2-5 minutes). To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/nvidia-graphics-drivers-390/+bug/1767932/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
