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From: Andrew Morton <akpm@linux-foundation.org>
To: Shile Zhang <shile.zhang@linux.alibaba.com>
Cc: Kirill Tkhai <ktkhai@virtuozzo.com>,
	Pavel Tatashin <pasha.tatashin@soleen.com>,
	linux-mm@kvack.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH RESEND] mm: fix tick_sched timer blocked by pgdat_resize_lock
Date: Sun, 9 Feb 2020 21:45:30 -0800	[thread overview]
Message-ID: <20200209214530.e17798f182000b7726a621c5@linux-foundation.org> (raw)
In-Reply-To: <39eb8ac4-bdb2-bdf2-9189-2d088edb43c1@linux.alibaba.com>

On Tue, 4 Feb 2020 15:24:38 +0800 Shile Zhang <shile.zhang@linux.alibaba.com> wrote:

> Hi, Andrew,
> 
> Sorry for ping, could you please also help to check this issue?
> Any comments from you is welcome!
> 

Kirill's suggestion isn't pretty but it appears that it will work OK -
redo deferred_init_memmap() so it releases 1024(?) pages at a time,
releasing and retaking pgdat_resize_lock/unlock each time around?


      reply	other threads:[~2020-02-10  5:45 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-01-10  8:25 [PATCH 0/1] try to fix tick_sched timer stuck issue Shile Zhang
2020-01-10  8:25 ` [PATCH 1/1] mm: fix tick_sched timer blocked by pgdat_resize_lock Shile Zhang
2020-01-10  9:30   ` [PATCH RESEND] " Shile Zhang
2020-01-10 11:42     ` Kirill Tkhai
2020-01-13  0:54       ` Shile Zhang
2020-01-13  8:11         ` Kirill Tkhai
2020-01-14  8:54           ` Shile Zhang
2020-01-15  9:45             ` Kirill Tkhai
2020-02-04  7:24               ` Shile Zhang
2020-02-10  5:45                 ` Andrew Morton [this message]

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