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From: Michal Hocko <mhocko@kernel.org>
To: kkabe@vega.pgw.jp
Cc: bhe@redhat.com, bugzilla-daemon@bugzilla.kernel.org,
	akpm@linux-foundation.org, richardw.yang@linux.intel.com,
	david@redhat.com, n-horiguchi@ah.jp.nec.com, linux-mm@kvack.org
Subject: Re: [Bug 206401] kernel panic on Hyper-V after 5 minutes duetomemory hot-add
Date: Mon, 17 Feb 2020 11:33:35 +0100	[thread overview]
Message-ID: <20200217103335.GI31531@dhcp22.suse.cz> (raw)
In-Reply-To: <200214232629.M0108877@vega.pgw.jp>

On Fri 14-02-20 23:26:29, kkabe@vega.pgw.jp wrote:
[...]
> [root@localhost ~]# [  302.391125] hv_balloon: Max. dynamic memory size: 1048576 MB

Is this saying that the system might hotplug up to 1TB of memory on this
32b system?

Btw. the hotplug support on highmem systems is quite likely to be broken
and/or full of corner cases. I seriously doubt this is something anybody
should be running in production without a _lot_ of work.

Is there any real usecase to run HyperV hotplug on 32b system?
-- 
Michal Hocko
SUSE Labs


  parent reply	other threads:[~2020-02-17 10:33 UTC|newest]

Thread overview: 39+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <bug-206401-27@https.bugzilla.kernel.org/>
     [not found] ` <bug-206401-27-zYD8WfDKqD@https.bugzilla.kernel.org/>
2020-02-10  5:32   ` [Bug 206401] kernel panic on Hyper-V after 5 minutes due to memory hot-add Andrew Morton
2020-02-10  5:40     ` Baoquan He
2020-02-10  5:56       ` Andrew Morton
2020-02-10  6:09         ` Baoquan He
2020-02-10  6:15           ` Baoquan He
2020-02-10 23:07             ` Wei Yang
2020-02-12  0:41               ` Andrew Morton
2020-02-12  7:31                 ` Baoquan He
2020-02-12  8:21                   ` David Hildenbrand
2020-02-13  4:22                   ` [Bug 206401] kernel panic on Hyper-V after 5 minutes due tomemory hot-add kabe
2020-02-13  8:19                     ` Baoquan He
2020-02-14 14:26                       ` [Bug 206401] kernel panic on Hyper-V after 5 minutes duetomemory hot-add kkabe
2020-02-14 14:48                         ` Baoquan He
2020-02-14 15:01                           ` Baoquan He
2020-02-17  4:48                         ` Baoquan He
2020-02-17  5:31                           ` [Bug 206401] kernel panic on Hyper-V after 5 minutes duetomemoryhot-add kkabe
2020-02-17  8:00                             ` David Hildenbrand
2020-02-17 10:33                         ` Michal Hocko [this message]
2020-02-17 11:21                           ` [Bug 206401] kernel panic on Hyper-V after 5 minutes due to memory hot-add kkabe
2020-02-17  5:46                   ` kkabe
2020-02-17  7:44                     ` Baoquan He
2020-02-17  9:34                     ` Oscar Salvador
2020-02-17 10:13                       ` Baoquan He
2020-02-17 10:17                         ` Baoquan He
2020-02-17 10:24                         ` David Hildenbrand
2020-02-17 10:33                           ` Baoquan He
2020-02-17 10:38                             ` David Hildenbrand
2020-02-17 11:20                               ` Baoquan He
2020-02-17 12:47                                 ` Michal Hocko
2020-02-18  6:24                                 ` kkabe
2020-02-18  8:47                                   ` Michal Hocko
2020-02-18  9:19                                     ` kkabe
2020-02-18  9:26                                       ` David Hildenbrand
2020-02-18 10:05                                       ` [RFC PATCH] memory_hotplug: disable the functionality for 32b (was: Re: [Bug 206401] kernel panic on Hyper-V after 5 minutes due to) " Michal Hocko
2020-02-18 10:11                                         ` David Hildenbrand
2020-02-19  3:23                                         ` Baoquan He
2020-02-19 21:46                                         ` Andrew Morton
2020-02-19 23:07                                           ` [RFC PATCH] memory_hotplug: disable the functionality for 32b Robin Murphy
2020-02-19  3:39                                   ` [Bug 206401] kernel panic on Hyper-V after 5 minutes due to memory hot-add Baoquan He

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