This is not really a bug as normal user will never encounter this, just some nuisance I discovered when I tried to investigate bug 60552 a little bit. When RADEON_NO_TCL=1 is used (which is useful in diagnosing compiler bugs), the whole machine sometimes hardlocks. App from bug 60552 is a good way to reproduce this. This debug option should be either fixed, or if it no longer considered useful, then it should be removed. BTW this was working not a year ago, so I can probably run a bisect if needed.
Yeah, of course this is with the gallium driver :-(
85efb2fff0d4de56c31e414fd05a37d212211d might be the culprit, but AFAIK there is no r500 hardware without TCL (the commit only affects r500). I'm not interested in fixing this, because nobody probably uses the env var (except you and me). If somebody with a no-TCL chipset experienced hardlocks, that would be a different story.
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