X server crashes after updating from 7.1 to 8.2

[Silas <silas_nblists%nocafe.net@localhost>]

Randomly, my X server crashes with apparent no reason.  Most of the 
times, it happens when firefox tries to play a multimedia file, but it 
also happens randomly like when selecting a text on a PDF file (using 
evince3) or resizing a windows (I'm using i3 window manager).

On NetBSD 7.1, I got strange patterns drawed on the screen.  It
looked as if it was a buffer overrun error that crashes the X server 
only on 8.2.

Anyway, I don't know if anyone have had this issue before.  Some 
information about my system follows below.  The full Xorg.0.log is in 
https://pastebin.com/dJEAyHJH

$ uname -a
NetBSD hope 8.2 NetBSD 8.2 (GENERIC) #0: Tue Mar 31 05:08:40 UTC 2020  mkrepro%mkrepro.NetBSD.org@localhost:/usr/src/sys/arch/amd64/compile/GENERIC amd64

$ dmesg | grep drm
i915drmkms0 at pci0 dev 2 function 0: vendor 8086 product 0042 (rev. 0x12)
drm: Memory usable by graphics device = 512M
drm: Supports vblank timestamp caching Rev 2 (21.10.2013).
drm: Driver supports precise vblank timestamp query.
i915drmkms0: interrupting at ioapic0 pin 16 (i915)
intelfb0 at i915drmkms0
i915drmkms0: info: registered panic notifier

/var/log/Xorg.0.log error section:
[   614.976] (EE) Segmentation fault at address 0x7aee7ee3500c
[   614.976] (EE) 
Fatal server error:
[   614.976] (EE) Caught signal 11 (Segmentation fault). Server aborting
[   614.976] (EE) 
[   614.976] (EE) 
Please consult the The X.Org Foundation support 
	 at http://wiki.X.Org
 for help. 
[   614.976] (EE) Please also check the log file at "/var/log/Xorg.0.log" for additional information.
[   614.976] (EE) 
[   614.982] (II) AIGLX: Suspending AIGLX clients for VT switch
[   615.328] (EE) Server terminated with error (1). Closing log file.