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I was assuming it didn't survive the reboot. It doesn't. In this kind of setup the best way to deal with devcoredump is to create a udev rule that copies the data file to a persistent place. > > (This machine doesn't allow any remote logins - very much on purpose - > so when the GPU hangs, it's toast). Any journal saving the kernel buf log of previous boots? Preferably with some drm.debug flags enabled 0xf likely Also: Any bisect possible in this setup? I imagine it might be painful though... What was the last drm-fixes pull you got in this 7.1.0-rc3-00073-ga6920214ba75 ? I believe the quickest path might be to simply drop the xe fixes you might have recently gotten there while we don't identify the culprit. Thanks, Rodrigo. > > Linus