This bug is for crash report bp-596190ec-35f2-49a0-b234-2925d0200320.

Top 10 frames of crashing thread:

0 libc.so.6 libc.so.6@0xf9f8d 
1 libgallium_dri.so libgallium_dri.so@0x8eebf8 
2 libgallium_dri.so libgallium_dri.so@0x32dbd2 
3 libgallium_drv_video.so libgallium_drv_video.so@0x1effff 
4 libva.so.2 libva.so.2@0x1f8c7 
5 libgallium_drv_video.so libgallium_drv_video.so@0x1f1042 
6 libgallium_drv_video.so libgallium_drv_video.so@0x9ba87 
7 libgallium_drv_video.so libgallium_drv_video.so@0x153ba7 
8 libgallium_drv_video.so libgallium_drv_video.so@0xa69da 
9 libgallium_drv_video.so libgallium_drv_video.so@0x9d480 

There is 1 crash in nightly 76 with buildid 20200320095353. In analyzing the backtrace, the regression may have been introduced by patch [1] to fix bug 1619258.

[1] https://hg.mozilla.org/mozilla-central/rev?node=25fd7f65b469

That is a crash in gfx drivers, nothing we can even diagnose.

Note that this isn't a regression, since the functionality is disabled by default. Hopefully the person who had that crash will file an issue with more details, or try again with different drivers.

@calixte check if you have up-to-date libdrm, mesa* and libva* libraries. If yes, install dbg (debug packages for previously mentioned packages to get meaningful output) and report issue to your distribution.

:okias, I didn't have this crash myself, I just filed the bug.