According to comment #106 it looks like the bug is still happening also in 5.3.0-52-generic, so maybe we have just reduced the probability to hit the bug.
Let's try a different approach. Assuming that the bug wasn't happening in -45 and it started to happen in -46, the bug is likely to be introduced by: 411b24761d28 "drm/i915: Schedue request retirement in execlists_user_end()" that was supposed to fix a power consumption issue. The alternative approach that I would like to try is to revert all the commits that I backported and revert also 411b24761d28. This would re- introduce the power consumption issue, but if we are not hitting the GPU HANG anymore, it would tell us the exact commit that introduced the bug and we can figure out an alternative way of fixing the power consumption problem. So, I've upload a new test kernel (5.3.0-52.46+lp1861395v1) with the changes mentioned above: https://kernel.ubuntu.com/~arighi/LP-1861395/5.3.0-52.46+lp1861395v1/ It would be great if someone could give it a try and report if they are still experiencing the GPU HANG bug also with this new test kernel. Thanks! -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1872001 Title: 5.3.0-46-generic - i915 - frequent GPU hangs / resets rcs0 Status in linux package in Ubuntu: Confirmed Status in linux source package in Eoan: Confirmed Bug description: Hi, Since update to HWE kernel 5.3.0-46-generic I am experiencing frequent (every couple of minutes) GPU hangs and reset manifesting as 2-3 seconds freezes of the GUI (other than the mouse pointer). No particular triggers identified although have Chrome / Chromium running with Hardware Acceleration enabled does appear to increase the frequency. I have seen incidences of these hangs in jounralctl output using previous kernels in the 5.3.0-xx series but they were very infrequent (one or twice in a week of daily usage) System Info steve@steve-Inspiron-5580:~$ inxi -SCGxxxz System: Host: steve-Inspiron-5580 Kernel: 5.3.0-46-generic x86_64 bits: 64 compiler: gcc v: 7.5.0 Desktop: Cinnamon 4.4.8 wm: muffin 4.4.2 dm: LightDM 1.26.0 Distro: Linux Mint 19.3 Tricia base: Ubuntu 18.04 bionic CPU: Topology: Quad Core model: Intel Core i5-8265U bits: 64 type: MT MCP arch: Kaby Lake rev: B L2 cache: 6144 KiB flags: avx avx2 lm nx pae sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx bogomips: 28800 Speed: 1173 MHz min/max: 400/3900 MHz Core speeds (MHz): 1: 800 2: 800 3: 800 4: 800 5: 800 6: 800 7: 800 8: 800 Graphics: Device-1: Intel vendor: Dell driver: i915 v: kernel bus ID: 00:02.0 chip ID: 8086:3ea0 Display: x11 server: X.Org 1.20.5 driver: modesetting unloaded: fbdev,vesa resolution: 1920x1080~60Hz OpenGL: renderer: Mesa DRI Intel UHD Graphics (Whiskey Lake 3x8 GT2) v: 4.5 Mesa 19.2.8 compat-v: 3.0 direct render: Yes steve@steve-Inspiron-5580:~$ journalctl -b | grep i915 Apr 10 06:15:17 steve-Inspiron-5580 kernel: i915 0000:00:02.0: vgaarb: deactivate vga console Apr 10 06:15:17 steve-Inspiron-5580 kernel: i915 0000:00:02.0: vgaarb: changed VGA decodes: olddecodes=io+mem,decodes=io+mem:owns=io+mem Apr 10 06:15:17 steve-Inspiron-5580 kernel: [drm] Finished loading DMC firmware i915/kbl_dmc_ver1_04.bin (v1.4) Apr 10 06:15:17 steve-Inspiron-5580 kernel: [drm] Initialized i915 1.6.0 20190619 for 0000:00:02.0 on minor 0 Apr 10 06:15:17 steve-Inspiron-5580 kernel: fbcon: i915drmfb (fb0) is primary device Apr 10 06:15:17 steve-Inspiron-5580 kernel: i915 0000:00:02.0: fb0: i915drmfb frame buffer device Apr 10 06:15:17 steve-Inspiron-5580 kernel: snd_hda_intel 0000:00:1f.3: bound 0000:00:02.0 (ops i915_audio_component_bind_ops [i915]) Apr 10 06:16:28 steve-Inspiron-5580 kernel: i915 0000:00:02.0: GPU HANG: ecode 9:0:0x00000000, hang on rcs0 Apr 10 06:16:28 steve-Inspiron-5580 kernel: i915 0000:00:02.0: Resetting rcs0 for hang on rcs0 Apr 10 06:31:46 steve-Inspiron-5580 kernel: i915 0000:00:02.0: Resetting rcs0 for hang on rcs0 Apr 10 06:37:48 steve-Inspiron-5580 kernel: i915 0000:00:02.0: Resetting rcs0 for hang on rcs0 Apr 10 06:40:46 steve-Inspiron-5580 kernel: i915 0000:00:02.0: Resetting rcs0 for hang on rcs0 I note another user has reported similar issues on the same kernel at https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1861395/comments/52 --- ProblemType: Bug ApportVersion: 2.20.9-0ubuntu7.14 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: steve 3920 F.... pulseaudio /dev/snd/pcmC0D0p: steve 3920 F...m pulseaudio CurrentDesktop: X-Cinnamon DistroRelease: Linux Mint 19.3 HibernationDevice: RESUME=none InstallationDate: Installed on 2019-12-27 (104 days ago) InstallationMedia: Linux Mint 19.3 "Tricia" - Release amd64 20191213 MachineType: Dell Inc. Inspiron 5580 Package: linux (not installed) ProcFB: 0 i915drmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.3.0-46-generic root=UUID=b0eaa5bb-0276-42d4-938f-ee6ce1627906 ro usb_storage.quirks=0bc2:2320: quiet splash vt.handoff=1 ProcVersionSignature: Ubuntu 5.3.0-46.38~18.04.1-generic 5.3.18 RelatedPackageVersions: linux-restricted-modules-5.3.0-46-generic N/A linux-backports-modules-5.3.0-46-generic N/A linux-firmware 1.173.17 Tags: tricia Uname: Linux 5.3.0-46-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm cdrom dip input lpadmin plugdev sambashare sudo vboxusers _MarkForUpload: True dmi.bios.date: 07/02/2019 dmi.bios.vendor: Dell Inc. dmi.bios.version: 2.4.0 dmi.board.name: 0K0DFT dmi.board.vendor: Dell Inc. dmi.board.version: A00 dmi.chassis.type: 10 dmi.chassis.vendor: Dell Inc. dmi.modalias: dmi:bvnDellInc.:bvr2.4.0:bd07/02/2019:svnDellInc.:pnInspiron5580:pvr:rvnDellInc.:rn0K0DFT:rvrA00:cvnDellInc.:ct10:cvr: dmi.product.family: Inspiron dmi.product.name: Inspiron 5580 dmi.product.sku: 089D dmi.sys.vendor: Dell Inc. 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