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

From: zhaogongyi
Date: Mon Sep 19 2022 - 05:01:52 EST


Hi!

>
> On 17.09.22 07:39, Akinobu Mita wrote:
> > 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.
> >
>
> That will also make patch #2 unnecessary, correct?

Yes. But there is another commit 005747526d4f3c2ec995891e95cb7625161022f9 that has the same problem.

Thanks!

>
> --
> Thanks,
>
> David / dhildenb