2022年9月15日(木) 18:01 Zhao Gongyi <zhaogongyi@xxxxxxxxxx>: > > Fault injection uses debugfs in a way that the provided values via > sysfs are interpreted as u64. Providing negative numbers results in > an error: > > # cd sys/kernel/debug/notifier-error-inject/memory > # echo -12 > actions/MEM_GOING_ONLINE/error > -bash: echo: write error: Invalid argument > > Update the docs and examples to use "printf %#x <val>" in these cases. I'd rather fix the notifier-error-inject module than change the user interface. I'll send a patch, so could you check if that solves the problem.