https://bugzilla.kernel.org/show_bug.cgi?id=207383
--- Comment #44 from Duncan (1i5t5.duncan@cox.net) --- (In reply to Christopher Snowhill from comment #43)
What about this patch?
https://cgit.freedesktop.org/~agd5f/linux/commit/?h=drm-fixes-5. 8&id=6eb3cf2e06d22b2b08e6b0ab48cb9c05a8e1a107
I see that in mainline as of 5.8-rc4 which I just triggered this bug on, so no, that doesn't fix it.
As for the bisect, now that I'm down to just a few commits, I woke up a couple hours ago with the idea to just try patch-reverting them on top of 5.7 or current 5.8-rc, thus eliminating the apparently unrelated kernel-panics I''ve twice triggered at the current bisect step. I delayed that to try this patch, to no avail, but that's what I'm going to try now (which is after all pre-5.6-rc1 so other bugs are to be expected). For all I know some of the reverts won't apply to current due to either being already reverted or more code changes since, but we'll see how it goes.