Re: [PATCH -next v2 1/5] docs: notifier-error-inject: fix non-working usage of negative values

2022年9月15日(木) 18:01 Zhao Gongyi zhaogongyi@huawei.com:

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.