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

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Date:   Wed, 1 Apr 2020 12:10:36 -0400
From:   Daniel Jordan <daniel.m.jordan@...cle.com>
To:     David Hildenbrand <david@...hat.com>
Cc:     Daniel Jordan <daniel.m.jordan@...cle.com>,
        Pankaj Gupta <pankaj.gupta.linux@...il.com>,
        linux-kernel@...r.kernel.org, linux-mm@...ck.org,
        Alexander Duyck <alexander.duyck@...il.com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Baoquan He <bhe@...hat.com>,
        Kirill Tkhai <ktkhai@...tuozzo.com>,
        Michal Hocko <mhocko@...nel.org>,
        Oscar Salvador <osalvador@...e.de>,
        Pavel Tatashin <pasha.tatashin@...een.com>,
        Shile Zhang <shile.zhang@...ux.alibaba.com>,
        Yiqian Wei <yiwei@...hat.com>
Subject: Re: [PATCH v1 0/2] mm/page_alloc: fix stalls/soft lockups with huge
 VMs

On Wed, Apr 01, 2020 at 05:54:40PM +0200, David Hildenbrand wrote:
> On 01.04.20 16:45, Daniel Jordan 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@linux.alibaba.com
> >>
> >> 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.
> > 
> 
> Cool, please CC me :)

Sure, in fact you already were! :)