| Summary: | Unrecoverable GPU hang with 5.4.0 kernel | ||||||
|---|---|---|---|---|---|---|---|
| Product: | DRI | Reporter: | Laurent Bonnaud <L.Bonnaud> | ||||
| Component: | DRM/Intel | Assignee: | Intel GFX Bugs mailing list <intel-gfx-bugs> | ||||
| Status: | RESOLVED MOVED | QA Contact: | Intel GFX Bugs mailing list <intel-gfx-bugs> | ||||
| Severity: | major | ||||||
| Priority: | not set | CC: | intel-gfx-bugs | ||||
| Version: | unspecified | ||||||
| Hardware: | x86-64 (AMD64) | ||||||
| OS: | Linux (All) | ||||||
| Whiteboard: | |||||||
| i915 platform: | i915 features: | ||||||
| Attachments: |
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Here is full system info:
# inxi -Fm
System: Host: xeelee Kernel: 5.4.0-050400-generic x86_64 bits: 64 Console: tty 31
Distro: Ubuntu 19.10 (Eoan Ermine)
Machine: Type: Desktop Mobo: Intel model: NUC7i5BNB v: J31144-303 serial: GEBN715009CU UEFI: Intel
v: BNKBL357.86A.0080.2019.0725.1139 date: 07/25/2019
Memory: RAM: total: 15.59 GiB used: 5.07 GiB (32.6%)
Array-1: capacity: 32 GiB slots: 2 EC: None
Device-1: ChannelA-DIMM0 size: No Module Installed
Device-2: ChannelB-DIMM0 size: 16 GiB speed: 2133 MT/s
CPU: Topology: Dual Core model: Intel Core i5-7260U bits: 64 type: MCP L2 cache: 4096 KiB
Speed: 642 MHz min/max: 400/3400 MHz Core speeds (MHz): 1: 682 2: 696
Graphics: Device-1: Intel Iris Plus Graphics 640 driver: i915 v: kernel
Display: server: X.org 1.20.5 driver: i915 tty: 113x59
Message: Advanced graphics data unavailable in console for root.
Audio: Device-1: Intel Sunrise Point-LP HD Audio driver: snd_hda_intel
Sound Server: ALSA v: k5.4.0-050400-generic
Network: Device-1: Intel Ethernet I219-V driver: e1000e
IF: eno1 state: up speed: 1000 Mbps duplex: full mac: f4:4d:30:6d:87:6e
Partition: ID-1: / size: 465.26 GiB used: 294.53 GiB (63.3%) fs: btrfs dev: /dev/nvme0n1p2
Sensors: System Temperatures: cpu: 43.5 C mobo: N/A
Fan Speeds (RPM): N/A
Info: Processes: 314 Uptime: 2d 17h 39m Init: systemd runlevel: 5 Shell: bash inxi: 3.0.36
Note that I cannot get more info about this GPU hang: # cat /sys/class/drm/card0/error cat: /sys/class/drm/card0/error: Cannot allocate memory Created attachment 146048 [details]
Full dmesg
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Hi, I was using my system, doing nothing special, and the GPU hung. There are many reports about GPU hangs but this one seems different: - it occurred with kernel 5.4.0 instead of 5.3.x kernels (my Intel GPU also had many problems with 5.3.x kernels) - the GPU never recovered (which BTW caused some data loss). I had to ssh into the system to get debug info. Here is some system info (full details below): Kernel: Linux xeelee 5.4.0-050400-generic #201911242031 SMP Mon Nov 25 01:35:10 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux Distribution: Ubuntu 19.10 Machine: Intel NUC7i5BNB Display connector: HDMI 2.0 [233850.738984] i915 0000:00:02.0: Resetting rcs0 for hang on rcs0 [233850.739750] [drm:gen8_reset_engines [i915]] *ERROR* rcs0 reset request timed out: {request: 00000001, RESET_CTL: 00000001} [233850.739824] i915 0000:00:02.0: Resetting chip for hang on rcs0 [233850.741595] [drm:gen8_reset_engines [i915]] *ERROR* rcs0 reset request timed out: {request: 00000001, RESET_CTL: 00000001} [233850.742349] [drm:gen8_reset_engines [i915]] *ERROR* rcs0 reset request timed out: {request: 00000001, RESET_CTL: 00000001} [234291.141681] INFO: task kworker/0:0:5853 blocked for more than 120 seconds. [234291.141690] Not tainted 5.4.0-050400-generic #201911242031 [234291.141693] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [234291.141697] kworker/0:0 D 0 5853 2 0x80004000 [234291.141823] Workqueue: events i915_hotplug_work_func [i915] [234291.141826] Call Trace: [234291.141839] __schedule+0x2e3/0x740 [234291.141846] schedule+0x42/0xb0 [234291.141852] schedule_preempt_disabled+0xe/0x10 [234291.141857] __ww_mutex_lock.isra.0+0x261/0x7f0 [234291.141864] __ww_mutex_lock_slowpath+0x16/0x20 [234291.141869] ww_mutex_lock+0x38/0x90 [234291.141916] drm_modeset_lock+0x35/0xb0 [drm] [234291.142025] intel_dp_retrain_link+0x94/0x1c0 [i915] [234291.142122] intel_ddi_hotplug+0x7a/0x350 [i915] [234291.142130] ? __switch_to_asm+0x40/0x70 [234291.142135] ? __switch_to_asm+0x34/0x70 [234291.142140] ? __switch_to_asm+0x40/0x70 [234291.142146] ? __switch_to_asm+0x40/0x70 [234291.142238] i915_hotplug_work_func+0x18b/0x280 [i915] [234291.142249] process_one_work+0x1ec/0x3a0 [234291.142256] worker_thread+0x4d/0x400 [234291.142262] kthread+0x104/0x140 [234291.142268] ? process_one_work+0x3a0/0x3a0 [234291.142274] ? kthread_park+0x90/0x90 [234291.142281] ret_from_fork+0x35/0x40