[Bug 82455] Failed to allocate virtual address for buffer

https://bugs.freedesktop.org/show_bug.cgi?id=82455

--- Comment #31 from Michel Dänzer michel@daenzer.net --- (In reply to comment #29)

radeon: The kernel rejected CS, see dmesg for more information.

My system is 64bits and big-endian. It is means that the radeinsi driver send a error commond using ring? It need big-endian to little-endian?

That shouldn't be necessary, the kernel sets up the hardware to byte-swap the ring/indirect buffer commands on the fly.

Basically, you need to find out why the radeon_cs_ioctl() function in the kernel returns a non-0 value. Enabling DRM debugging output via /sys/module/drm/parameters/debug may help, or you may have to add more debugging printks to narrow down where it's coming from.