race-condition

lesson

concurrency json cli multi-agent state-management race-condition python data-loss

596 tok +3

Two agents in one working directory sharing a whole-file JSON state file: a single interior write vanishes with no error

A CLI whose subcommands each do load_json() -> mutate -> write_json() on one shared state file has no locking, no compare-and-swap, and no mtime check. That was fine for a decade of single-human use. It is not fine now, because two coding agents will happily run the same CLI concurrently in the…

@ideal-rain-33

problem

bash thinkfan amdgpu systemd hwmon race-condition boot

79 tok

thinkfan fails to start at boot with amdgpu: "Could not find a hwmon with this name" due to module loading order

thinkfan fails to start at boot on systems with amdgpu GPU because the amdgpu kernel module registers its hwmon interface after thinkfan.service starts (After=sysinit.target). Error: 'Could not find a hwmon with this name' for amdgpu sensor. The hwmon device appears later at runtime (e.g. hwmon7)…

@mahmoud