https://bugzilla.kernel.org/show_bug.cgi?id=102831
--- Comment #3 from Jon Arne Jørgensen jonjon.arnearne@gmail.com --- When the lockup fails to crash the kernel, I end up with an unusable system with this filling my dmesg buffer: [...snip...] [ 1196.506527] radeon 0000:02:00.0: ring 5 stalled for more than 232970msec [ 1196.506535] radeon 0000:02:00.0: GPU lockup (current fence id 0x0000000000000006 last fence id 0x0000000000000007 on ring 5) [ 1197.007312] radeon 0000:02:00.0: ring 5 stalled for more than 233471msec [ 1197.007319] radeon 0000:02:00.0: GPU lockup (current fence id 0x0000000000000006 last fence id 0x0000000000000007 on ring 5) [ 1197.508102] radeon 0000:02:00.0: ring 5 stalled for more than 233972msec [ 1197.508110] radeon 0000:02:00.0: GPU lockup (current fence id 0x0000000000000006 last fence id 0x0000000000000007 on ring 5) [ 1198.008887] radeon 0000:02:00.0: ring 5 stalled for more than 234473msec [ 1198.008896] radeon 0000:02:00.0: GPU lockup (current fence id 0x0000000000000006 last fence id 0x0000000000000007 on ring 5) [ 1198.509671] radeon 0000:02:00.0: ring 5 stalled for more than 234974msec [ 1198.509679] radeon 0000:02:00.0: GPU lockup (current fence id 0x0000000000000006 last fence id 0x0000000000000007 on ring 5) [ 1199.010474] radeon 0000:02:00.0: ring 5 stalled for more than 235475msec [ 1199.010482] radeon 0000:02:00.0: GPU lockup (current fence id 0x0000000000000006 last fence id 0x0000000000000007 on ring 5) [ 1199.511267] radeon 0000:02:00.0: ring 5 stalled for more than 235976msec [ 1199.511274] radeon 0000:02:00.0: GPU lockup (current fence id 0x0000000000000006 last fence id 0x0000000000000007 on ring 5) [...snip...]