On 2018-07-12 02:43 AM, Felix Kuehling wrote: > Kent just caught a similar backtrace in one of our KFD pre-submission > tests (see below) Yeah, looks the same. > Neither KFD nor AMDGPU are implied in the backtrace. Is this a > regression in the kernel itself? amd-kfd-staging is currently based on > 4.18-rc1. FWIW, I saw this with 4.17 based kernels already, and I didn't have CONFIG_DEBUG_RWSEMS enabled with older kernels, so I'm not sure it's a (recent) regression. -- Earthling Michel Dänzer | http://www.amd.com Libre software enthusiast | Mesa and X developer