On Tue, Mar 26, 2019 at 09:03:07AM +0500, Mikhail Gavrilov wrote: > > Ok, thanks. > > > > Trying one last time before putting together a debugging patch to see > > exactly what PFNs are triggering as I still have not reproduced this on a > > local machine. This is another replacement that is based on the assumption > > that it's the free_pfn at the end of the zone that is triggering the > > warning and it happens to be the case the end of a zone is aligned. Sorry > > for the frustration with this and for persisting. > > > > diff --git a/mm/compaction.c b/mm/compaction.c > > index f171a83707ce..b4930bf93c8a 100644 > > --- a/mm/compaction.c > > +++ b/mm/compaction.c > > <SNIP> > > I do not want to hurry, but it looks like this patch has fixed the problem. > I will watch for a day. > But the system has already experienced a night without a hang (kernel panic). > Good news (for now at least). I've written an appropriate changelog and it's ready to send. I'll wait to hear confirmation on whether your machine survives for a day or not. Thanks. -- Mel Gorman SUSE Labs
