Bug 212635

Created attachment 296315 [details]
dmesg (kernel 5.11.12)

Happened during browsing on Firefox, WebGL conformance tests were running in the background (https://www.khronos.org/registry/webgl/sdk/tests/webgl-conformance-tests.html?version=2.0.1). The screen went blank, but I got to desktop back again and the machine stayed usable.

[...]
nouveau 0000:04:00.0: fifo: fault 00 [READ] at 0000000000380000 engine 00 [GR] client 14 [HUB/SCC] reason 02 [PTE] on channel 5 [007fabf000 X[570]]
nouveau 0000:04:00.0: fifo: channel 5: killed
nouveau 0000:04:00.0: fifo: runlist 0: scheduled for recovery
nouveau 0000:04:00.0: fifo: engine 0: scheduled for recovery
nouveau 0000:04:00.0: X[570]: channel 5 killed!
nouveau 0000:04:00.0: fifo: fault 00 [READ] at 0000000000380000 engine 00 [GR] client 14 [HUB/SCC] reason 02 [PTE] on channel 5 [007fabf000 X[570]]
nouveau 0000:04:00.0: fifo: channel 5: killed
nouveau 0000:04:00.0: fifo: runlist 0: scheduled for recovery
nouveau 0000:04:00.0: fifo: engine 0: scheduled for recovery
nouveau 0000:04:00.0: X[570]: channel 5 killed!
nouveau 0000:04:00.0: fifo: fault 00 [READ] at 0000000000380000 engine 00 [GR] client 14 [HUB/SCC] reason 02 [PTE] on channel 5 [007fabf000 X[570]]
nouveau 0000:04:00.0: fifo: channel 5: killed
nouveau 0000:04:00.0: fifo: runlist 0: scheduled for recovery
nouveau 0000:04:00.0: fifo: engine 0: scheduled for recovery
nouveau 0000:04:00.0: X[570]: channel 5 killed!
nouveau 0000:04:00.0: fifo: fault 00 [READ] at 0000000000380000 engine 00 [GR] client 14 [HUB/SCC] reason 02 [PTE] on channel 5 [007fabf000 X[570]]
nouveau 0000:04:00.0: fifo: channel 5: killed
nouveau 0000:04:00.0: fifo: runlist 0: scheduled for recovery
nouveau 0000:04:00.0: fifo: engine 0: scheduled for recovery
nouveau 0000:04:00.0: X[570]: channel 5 killed!


 # inxi -b
System:    Kernel: 5.11.12-gentoo-Excavator x86_64 bits: 64 Desktop: MATE 1.24.0 
           Distro: Gentoo Base System release 2.7 
Machine:   Type: Desktop Mobo: ASRock model: A320M-HDV R3.0 serial: M80-BA024200938 UEFI: American Megatrends v: P3.10 
           date: 06/26/2019 
CPU:       Info: Quad Core AMD A10-9700E RADEON R7 10 COMPUTE CORES 4C+6G [MCP] speed: 3300 MHz min/max: 800/3000 MHz 
Graphics:  Device-1: NVIDIA GK208B [GeForce GT 710] driver: nouveau v: kernel 
           Display: x11 server: X.Org 1.20.10 driver: modesetting resolution: 1920x1080~60Hz 
           OpenGL: renderer: NV106 v: 4.3 Mesa 20.3.5 
Network:   Device-1: Realtek RTL8111/8168/8411 PCI Express Gigabit Ethernet driver: r8169 

 # lspci
00:00.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 15h (Models 60h-6fh) Processor Root Complex
00:00.2 IOMMU: Advanced Micro Devices, Inc. [AMD] Family 15h (Models 60h-6fh) I/O Memory Management Unit
00:02.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 15h (Models 60h-6fh) Host Bridge
00:02.4 PCI bridge: Advanced Micro Devices, Inc. [AMD] Family 15h (Models 60h-6fh) Processor Root Port
00:02.5 PCI bridge: Advanced Micro Devices, Inc. [AMD] Family 15h (Models 60h-6fh) Processor Root Port
00:03.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 15h (Models 60h-6fh) Host Bridge
00:03.1 PCI bridge: Advanced Micro Devices, Inc. [AMD] Family 15h (Models 60h-6fh) Processor Root Port
00:08.0 Encryption controller: Advanced Micro Devices, Inc. [AMD] Carrizo Platform Security Processor
00:09.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Carrizo Audio Dummy Host Bridge
00:09.2 Audio device: Advanced Micro Devices, Inc. [AMD] Family 15h (Models 60h-6fh) Audio Controller
00:10.0 USB controller: Advanced Micro Devices, Inc. [AMD] FCH USB XHCI Controller (rev 20)
00:11.0 SATA controller: Advanced Micro Devices, Inc. [AMD] FCH SATA Controller [AHCI mode] (rev 49)
00:12.0 USB controller: Advanced Micro Devices, Inc. [AMD] FCH USB EHCI Controller (rev 49)
00:14.0 SMBus: Advanced Micro Devices, Inc. [AMD] FCH SMBus Controller (rev 4a)
00:14.3 ISA bridge: Advanced Micro Devices, Inc. [AMD] FCH LPC Bridge (rev 11)
00:18.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 15h (Models 60h-6fh) Processor Function 0
00:18.1 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 15h (Models 60h-6fh) Processor Function 1
00:18.2 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 15h (Models 60h-6fh) Processor Function 2
00:18.3 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 15h (Models 60h-6fh) Processor Function 3
00:18.4 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 15h (Models 60h-6fh) Processor Function 4
00:18.5 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 15h (Models 60h-6fh) Processor Function 5
01:00.0 USB controller: Advanced Micro Devices, Inc. [AMD] Device 43bc (rev 02)
01:00.1 SATA controller: Advanced Micro Devices, Inc. [AMD] Device 43b8 (rev 02)
01:00.2 PCI bridge: Advanced Micro Devices, Inc. [AMD] Device 43b3 (rev 02)
02:04.0 PCI bridge: Advanced Micro Devices, Inc. [AMD] 300 Series Chipset PCIe Port (rev 02)
02:06.0 PCI bridge: Advanced Micro Devices, Inc. [AMD] 300 Series Chipset PCIe Port (rev 02)
02:07.0 PCI bridge: Advanced Micro Devices, Inc. [AMD] 300 Series Chipset PCIe Port (rev 02)
04:00.0 VGA compatible controller: NVIDIA Corporation GK208B [GeForce GT 710] (rev a1)
04:00.1 Audio device: NVIDIA Corporation GK208 HDMI/DP Audio Controller (rev a1)
05:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 15)
06:00.0 Non-Volatile memory controller: Sandisk Corp WD Black 2019/PC SN750 NVMe SSD
07:00.0 USB controller: ASMedia Technology Inc. ASM2142 USB 3.1 Host Controller