<html> <head> <base href="https://bugs.freedesktop.org/" /> </head> <body> <div> <a class="bz_bug_link bz_status_NEW " title="NEW - [drm:radeon_ib_ring_tests] *ERROR* radeon: failed testing IB on GFX ring (-35)." href="https://bugs.freedesktop.org/show_bug.cgi?id=95017#c10">Comment # 10</a> on <a class="bz_bug_link bz_status_NEW " title="NEW - [drm:radeon_ib_ring_tests] *ERROR* radeon: failed testing IB on GFX ring (-35)." href="https://bugs.freedesktop.org/show_bug.cgi?id=95017">bug 95017</a> from <a class="email" href="mailto:rsalvaterra@gmail.com" title="Rui Salvaterra <rsalvaterra@gmail.com>"> Rui Salvaterra</a> <pre>(In reply to Michel Dänzer from <a href="show_bug.cgi?id=95017#c4">comment #4</a>) > (In reply to Mathieu Malaterre from <a href="show_bug.cgi?id=95017#c3">comment #3</a>) > > If AGP is simply not supported on PowerPC, it would be nice to have a > > clearer message (or at least a warning). > > It is supported, it's just unstable on many PowerMacs. > > A patch disabling AGP by default on PowerMacs or even PPC in general > probably wouldn't be rejected. :) Hi, Michel I don't understand. I know about the coherency issues on some UniNorth bridges (DMA writes through the GART going directly to RAM, IIRC), but how did OS X cope with them? Did it also disable AGP transfers? If not, what can be done to fix this bug for real, instead of working around it? (I have a very vague memory that these hangs didn't happen before KMS, but I may be completely wrong.) Also, on a somewhat related note, there are still issues with the Radeon (R600, not SI) DRM on big endian, as for <a class="bz_bug_link bz_status_NEW " title="NEW - [drm:.r600_ring_test [radeon]] *ERROR* radeon: ring 0 test failed (scratch(0x8504)=0xCAFEDEAD)" href="show_bug.cgi?id=95015">https://bugs.freedesktop.org/show_bug.cgi?id=95015</a>. Thanks, Rui</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the assignee for the bug.</li> </ul> </body> </html>