Hello!

I've changed GPU from a geforce to radeon HD7770 few days ago and since then I get always computation errors on GPU WUs. Stderr output from task says:

(...)
[Sep 18 15:44:40 UTC] 1 cruncher has been started.
[Sep 18 15:44:40 UTC] Core compilation failed. Exiting.
[Sep 18 15:44:40 UTC] Core compilation failed. Exiting.
[Sep 18 15:44:41 UTC] *Break* Shutting down...
[Sep 18 15:44:41 UTC] Core compilation failed. Exiting.
(...)

(full output: http://moowrap.net/result.php?resultid=15338589)

The cruncher is restarted 10 times and every time it fails.

What may be the cause of those errors? I run other boinc projects which use GPU (Collatz, Milky Way) and they compute correctly.
My video driver is catalyst 12.6. I use 64bit linux.

Or maybe it is an upstream problem with dnetc?

EDIT:
it is an upstream problem with radeons 7xxx: http://bugs.distributed.net/show_bug.cgi?id=4471

Or maybe it is an upstream problem with dnetc?
..
it is an upstream problem with radeons 7xxx

Yep, Radeon 7xxx need the upcoming OpenCL D.net client to work since AMD decided to drop support for native Stream client. :( Upstream has a pre-release beta OpenCL client out so they are making nice progress on that front, though.

-w