Re: mlockall(MCL_CURRENT) blocking infinitely

[Jan Kara]

On Wed 06-11-19 12:26:24, Robert Stupp wrote:
> Maybe a native and wrong idea, but would it work to call
> __get_user_pages_locked() instead of __get_user_pages() in
> populate_vma_page_range() ?

See my reply to Johannes. It would work but it would be somewhat fragile.

								Honza

> On Wed, 2019-11-06 at 11:25 +0100, Robert Stupp wrote:
> > Here's one more dmesg output with more information captured in
> > __get_user_pages() as well. It basically confirms that
> > handle_mm_fault() returns VM_FAULT_RETRY.
> >
> > I'm not sure where and what to change ("fix with a FOLL_TRIED
> > somewhere") to make it work. My (uneducated) impression is, that only
> > __get_user_pages() needs to be changed - but I might be wrong.
> >
> 
-- 
Jan Kara <jack@xxxxxxxx>
SUSE Labs, CR