On 08.09.2019 15:29, Vitaly Wool wrote: > z3fold_page_reclaim()'s retry mechanism is broken: on a second > iteration it will have zhdr from the first one so that zhdr > is no longer in line with struct page. That leads to crashes when > the system is stressed. > > Fix that by moving zhdr assignment up. > > While at it, protect against using already freed handles by using > own local slots structure in z3fold_page_reclaim(). > > Reported-by: Markus Linnala <markus.linnala@xxxxxxxxx> > Reported-by: Chris Murphy <bugzilla@xxxxxxxxxxxxxxxxx> > Reported-by: Agustin Dall'Alba <agustin@xxxxxxxxxxxxxxx> > Signed-off-by: Vitaly Wool <vitalywool@xxxxxxxxx> > --- Shouldn't this be CC'ed to stable@ ? Maciej
