Re: [PATCH v1 0/2] mm/page_alloc: fix stalls/soft lockups with huge VMs

From: Andrew Morton
Date: Wed Apr 01 2020 - 14:06:27 EST


On Wed, 1 Apr 2020 10:45:29 -0400 Daniel Jordan <daniel.m.jordan@xxxxxxxxxx> wrote:

> On Wed, Apr 01, 2020 at 04:31:51PM +0200, Pankaj Gupta wrote:
> > > On 01.04.20 12:41, David Hildenbrand wrote:
> > > > Two fixes for misleading stall messages / soft lockups with huge nodes /
> > > > zones during boot without CONFIG_PREEMPT.
> > > >
> > > > David Hildenbrand (2):
> > > > mm/page_alloc: fix RCU stalls during deferred page initialization
> > > > mm/page_alloc: fix watchdog soft lockups during set_zone_contiguous()
> > > >
> > > > mm/page_alloc.c | 2 ++
> > > > 1 file changed, 2 insertions(+)
> > > >
> > >
> > > Patch #1 requires "[PATCH v3] mm: fix tick timer stall during deferred
> > > page init"
> > >
> > > https://lkml.kernel.org/r/20200311123848.118638-1-shile.zhang@xxxxxxxxxxxxxxxxx
> >
> > Thanks! Took me some time to figure it out.
>
> FYI, I'm planning to post an alternate version of that fix, hopefully today if
> all goes well with my testing.

I assume you'll redo this two-patch series to apply on top of this
forthcoming patch?