Quoting Chris Wilson (2017-11-29 14:05:33) > History tells us that if we cannot reset the GPU now, we never will. This > then impacts everything that is run subsequently. On failing the reset, > we mark the driver as wedged, trying to prevent further execution on the > GPU, forcing userspace to fallback to using the CPU to update its > framebuffers and let the user know what happened. > > We also want to go one step further and add a taint to the kernel so that > any subsequent faults can be traced back to this failure. This is > important for igt, where if the GPU/driver fails we want to reboot and > restart testing rather than continue on into oblivion. > > TAINT_DIE is colloquially known as "system on fire", which seems > appropriate for unresponsive hardware. > > v2: Also taint if the recovery fails (again history shows us that is > typically fatal). > > References: https://bugs.freedesktop.org/show_bug.cgi?id=103514 > Signed-off-by: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx> > Cc: Mika Kuoppala <mika.kuoppala@xxxxxxxxxxxxxxx> > Cc: Daniel Vetter <daniel.vetter@xxxxxxxx> > Cc: Michał Winiarski <michal.winiarski@xxxxxxxxx> irc Acked-by: Tomi Sarvela <tomi.p.sarvela@xxxxxxxxx> -Chris _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/intel-gfx
