Re: Reproducible, long-standing fanotify+autofs problem

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On Wed, Jan 25, 2017 at 4:42 PM, Marko Rauhamaa
<marko.rauhamaa@xxxxxxxxxxxx> wrote:
> Amir Goldstein <amir73il@xxxxxxxxx>:
>
>> On Wed, Jan 25, 2017 at 4:06 PM, Marko Rauhamaa
>> <marko.rauhamaa@xxxxxxxxxxxx> wrote:
>>> Amir Goldstein <amir73il@xxxxxxxxx>:
>> So I am confused.
>> Your test program sets a watch on permission events on the mount
>> and does not respond to permission events on the mount, so all
>> file system operations on the mount SHOULD be blocked.
>> What am I missing?
>
> The problem is that the fanotify_mark() system call is hanging and as a
> side effect blocks everything.
>
> The side effect is probably completely understandable, but
> fanotify_mark() should never hang, should it?
>
>

I see. I guess it shouldn't block.
Also with this understanding, I am not sure Jan's work is relevant to
your issue.
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