Re: [PATCH v3 0/1] mm: introduce put_user_page*(), placeholder versions

[William Kucharski]

> On Mar 14, 2019, at 7:30 AM, Jan Kara <jack@xxxxxxx> wrote:
> 
> Well I have some crash reports couple years old and they are not from QA
> departments. So I'm pretty confident there are real users that use this in
> production... and just reboot their machine in case it crashes.

Do you know what the use case in those crashes actually was?

I'm curious to know they were actually cases of say DMA from a video
capture card or if the uses posited to date are simply theoretical.

It's always good to know who might be doing this and why if for no other
reason than as something to keep in mind when designing future interfaces.