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Before submitting your bug report:

• Check if a new version of Mesa is available which might have fixed the problem.
• If you can, check if the latest development version (git master) works better.
• Check if your bug has already been reported here.
• For any logs, backtraces, etc - use code blocks
• As examples of good bug reports you may review one of these - #2598 (closed), #2615 (closed), #2608 (closed)

Otherwise, please fill the requested information below. And please remove anything that doesn't apply to keep things readable :)

System information

Please post inxi -GSC -xx output OR fill information below manually

System:
  Host: mission Kernel: 5.6.19-300.fc32.x86_64 x86_64 bits: 64 compiler: gcc 
  v: 10.1.1 Desktop: N/A dm: xinit Distro: Fedora release 32 (Thirty Two) 
CPU:
  Topology: Dual Core model: Intel Core i7-7600U bits: 64 type: MT MCP 
  arch: Amber Lake rev: 9 L2 cache: 4096 KiB 
  flags: avx avx2 lm nx pae sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx 
  bogomips: 23199 
  Speed: 700 MHz min/max: 400/3900 MHz Core speeds (MHz): 1: 730 2: 747 
  3: 774 4: 747 
Graphics:
  Device-1: Intel HD Graphics 620 vendor: Dell driver: i915 v: kernel 
  bus ID: 00:02.0 chip ID: 8086:5916 
  Device-2: Sunplus Innovation Integrated_Webcam_HD type: USB 
  driver: uvcvideo bus ID: 1-5:3 chip ID: 1bcf:2b96 
  Display: server: Fedora Project X.org 1.20.8 driver: modesetting 
  resolution: 1: 1920x1080~60Hz 2: 1920x1080~60Hz s-dpi: 96 
  OpenGL: renderer: Mesa Intel HD Graphics 620 (KBL GT2) v: 4.6 Mesa 20.1.1 
  direct render: Yes 

Describe the issue

Xorg is taking SIGABRT in what appears to be iris_dri.so

Please describe what you are doing, what you expect and what you're seeing instead. How frequent is the issue? Is it a one time occurrence? Does it appear multiple times but randomly? Can you easily reproduce it?

This is definitely happening once or twice per day. I am running Fedora 32 (fully updated as of yesterday), vtwm(!), Chrome 83.0.4103.11. I amusing a Dell Latitude Laptop with a DisplayLink "docking" station with displaylink version 1.7.0-1. The problem only seems to manifest when I am plugged into the docking station and using Chrome. I cannot reproduce it because it always happens so quickly, but always as a the result of a mouse-click action (ie: I'm never simply typing away in an xterm and suddenly poof it all disappears). But not that I think about it, I do think one recent crash happened when I tried to pull down a vtwm menu from the desktop, so perhaps Chrome is only a vector and not part of the problem. I wish I could offer you more. I should say that I have had the laptop for many months (perhaps more than year even) and nothing went wrong until I added the DisplayLink docking station with the displaylink drivers.

Regression

The problem started nearly right after loading the displaylink drivers so that I could use laptop with a nice, large monitor.

Log files as attachment

• Output of dmesg Too long. Attached.l

• Backtrace

[ 67696.210] (EE) Backtrace:
[ 67696.213] (EE) 0: /usr/libexec/Xorg (OsLookupColor+0x139) [0x55aa96f5cc29]
[ 67696.216] (EE) 1: /usr/lib64/libpthread.so.0 (funlockfile+0x60) [0x7fbe94870aef]
[ 67696.222] (EE) 2: /usr/lib64/libc.so.6 (gsignal+0x145) [0x7fbe946cea25]
[ 67696.226] (EE) 3: /usr/lib64/libc.so.6 (abort+0x127) [0x7fbe946b7895]
[ 67696.230] (EE) unw_get_proc_name failed: no unwind info found [-10]
[ 67696.231] (EE) 4: /usr/lib64/dri/iris_dri.so (?+0x0) [0x7fbe927998bd]
[ 67696.234] (EE) 5: /usr/lib64/dri/iris_dri.so (nouveau_drm_screen_create+0x1e65c3) [0x7fbe9335e7e3]
[ 67696.235] (EE) 6: /usr/lib64/dri/iris_dri.so (__driDriverGetExtensions_virtio_gpu+0x2145a) [0x7fbe927e615a]
[ 67696.237] (EE) 7: /usr/lib64/dri/iris_dri.so (__driDriverGetExtensions_virtio_gpu+0x214d4) [0x7fbe927e6284]
[ 67696.238] (EE) unw_get_proc_name failed: no unwind info found [-10]
[ 67696.238] (EE) 8: /usr/lib64/xorg/modules/drivers/modesetting_drv.so (?+0x0) [0x7fbe94214e00]
[ 67696.240] (EE) unw_get_proc_name failed: no unwind info found [-10]
[ 67696.240] (EE) 9: /usr/lib64/xorg/modules/drivers/modesetting_drv.so (?+0x0) [0x7fbe94217910]
[ 67696.240] (EE) 10: /usr/libexec/Xorg (BlockHandler+0xa5) [0x55aa96dfc4c5]
[ 67696.241] (EE) 11: /usr/libexec/Xorg (WaitForSomething+0x122) [0x55aa96f561c2]
[ 67696.241] (EE) 12: /usr/libexec/Xorg (SendErrorToClient+0x117) [0x55aa96df7807]
[ 67696.242] (EE) 13: /usr/libexec/Xorg (InitFonts+0x3b4) [0x55aa96dfbb04]
[ 67696.244] (EE) 14: /usr/lib64/libc.so.6 (__libc_start_main+0xf2) [0x7fbe946b9042]
[ 67696.244] (EE) 15: /usr/libexec/Xorg (_start+0x2e) [0x55aa96de4e3e]
[ 67696.244] (EE) 
[ 67696.244] (EE) 
Fatal server error:
[ 67696.244] (EE) Caught signal 6 (Aborted). Server aborting
[ 67696.245] (EE) 
[ 67696.245] (EE)