Created attachment 86336 [details]
gdb trace on segfault

I bougth a brand new laptop with AMD APU A4-5000 (KABINI) which have two amd
gpu (8330 integrated + 8550M dedicated).

I just tried to recompile everithing to make Xorg work with radeonsi.

At then end I have:
1)kernel 3.12-rc1 (with latest Alex Deucher 6 patches, the first is
https://patchwork.kernel.org/patch/2922981/ dealing with clocks on SI);
2) libdrm git;
3) mesa git;
4) xf86-video-ati git;
5) glamor git;
6) Xserver git;

I cannot start Xorg (the screen goes black), but I can ssh into it a trace the
segfault with gdb.