...
radeon: Failed to allocate virtual address for buffer:
radeon:    size      : 67108864 bytes
radeon:    alignment : 4096 bytes
radeon:    domains   : 4
radeon:    va        : 0x00000000fca38000
radeon: Failed to allocate virtual address for buffer:
radeon:    size      : 67108864 bytes
radeon:    alignment : 4096 bytes
radeon:    domains   : 4
radeon:    va        : 0x00000000fca38000
radeon: The kernel rejected CS, see dmesg for more information.