1. Please describe the problem: WARNING: CPU: 1 PID: 951485 at drivers/gpu/drm/ttm/ttm_bo.c:512 ttm_bo_put+0x34d/0x370 [ttm] 2. What is the Version-Release number of the kernel: 5.11.0 3. Did it work previously in Fedora? If so, what kernel version did the issue *first* appear? Old kernels are available for download at https://koji.fedoraproject.org/koji/packageinfo?packageID=8 : 4. Can you reproduce this issue? If so, please provide the steps to reproduce the issue below: no 5. Does this problem occur with the latest Rawhide kernel? To install the Rawhide kernel, run ``sudo dnf install fedora-repos-rawhide`` followed by ``sudo dnf update --enablerepo=rawhide kernel``: yes 6. Are you running any modules that not shipped with directly Fedora's kernel?: no 7. Please attach the kernel logs. You can get the complete kernel log for a boot with ``journalctl --no-hostname -k > dmesg.txt``. If the issue occurred on a previous boot, use the journalctl ``-b`` flag. https://beaker.engineering.redhat.com/recipes/9632901#task122567703 https://beaker-archive.host.prod.eng.bos.redhat.com/beaker-logs/2021/02/51369/5136957/9632901/console.log