Anyone else fighting Blackwell GSP timeout in production passthrough? How are you handling recovery without a host reboot?

In three linesUser reports GSP (Graphics System Processor) timeouts on RTX Pro 5000 Blackwell in VFIO passthrough on Linux KVM/QEMU. GPU enters unrecoverable bad state after initialization timeout. Secondary Bus Reset, D3cold, and driver reload fail; only full host reboot works. Seeking recovery solutions without reboot.

Summary generated by Claude — human-verified