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From:   David Hildenbrand <david@redhat.com>
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Subject: Re: [PATCH v1 0/2] mm/page_alloc: fix stalls/soft lockups with huge VMs
Date:   Wed, 1 Apr 2020 20:29:46 +0200
Message-Id: <26A3B286-7090-4DD2-8E30-C2BA846AF699@redhat.com>
References: <20200401110624.e5caf6632215004a18a3757b@linux-foundation.org>
Cc:     Daniel Jordan <daniel.m.jordan@oracle.com>,
        Pankaj Gupta <pankaj.gupta.linux@gmail.com>,
        David Hildenbrand <david@redhat.com>,
        linux-kernel@vger.kernel.org, linux-mm@kvack.org,
        Alexander Duyck <alexander.duyck@gmail.com>,
        Baoquan He <bhe@redhat.com>,
        Kirill Tkhai <ktkhai@virtuozzo.com>,
        Michal Hocko <mhocko@kernel.org>,
        Oscar Salvador <osalvador@suse.de>,
        Pavel Tatashin <pasha.tatashin@soleen.com>,
        Shile Zhang <shile.zhang@linux.alibaba.com>,
        Yiqian Wei <yiwei@redhat.com>
In-Reply-To: <20200401110624.e5caf6632215004a18a3757b@linux-foundation.org>
To:     Andrew Morton <akpm@linux-foundation.org>
Sender: linux-kernel-owner@vger.kernel.org
Precedence: bulk


> Am 01.04.2020 um 20:06 schrieb Andrew Morton <akpm@linux-foundation.org>:
>=20
> =EF=BB=BFOn Wed, 1 Apr 2020 10:45:29 -0400 Daniel Jordan <daniel.m.jordan@=
oracle.com> wrote:
>=20
>> 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 node=
s /
>>>>>> zones during boot without CONFIG_PREEMPT.
>>>>>>=20
>>>>>> David Hildenbrand (2):
>>>>>>  mm/page_alloc: fix RCU stalls during deferred page initialization
>>>>>>  mm/page_alloc: fix watchdog soft lockups during set_zone_contiguous(=
)
>>>>>>=20
>>>>>> mm/page_alloc.c | 2 ++
>>>>>> 1 file changed, 2 insertions(+)
>>>>>>=20
>>>>>=20
>>>>> Patch #1 requires "[PATCH v3] mm: fix tick timer stall during deferred=

>>>>> page init"
>>>>>=20
>>>>> https://lkml.kernel.org/r/20200311123848.118638-1-shile.zhang@linux.al=
ibaba.com
>>>=20
>>> Thanks! Took me some time to figure it out.
>>=20
>> FYI, I'm planning to post an alternate version of that fix, hopefully tod=
ay if
>> all goes well with my testing.
>=20
> I assume you'll redo this two-patch series to apply on top of this
> forthcoming patch?
>=20

Yes, will wait until the old one in -next has been replaced by a revised one=
. Thanks!=