linux-kernel - Re: [PATCH linux-next v3] swap_state: update shadow

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Message-ID: <202301170927309483808@zte.com.cn>
Date:   Tue, 17 Jan 2023 09:27:30 +0800 (CST)
From:   <yang.yang29@....com.cn>
To:     <willy@...radead.org>
Cc:     <akpm@...ux-foundation.org>, <hannes@...xchg.org>,
        <bagasdotme@...il.com>, <linux-fsdevel@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, <linux-mm@...ck.org>,
        <iamjoonsoo.kim@....com>, <ran.xiaokai@....com.cn>
Subject: Re: [PATCH linux-next v3] swap_state: update shadow_nodes for anonymous page

> What testing did you do of this?  I have this crash in today's testing:

My test is this: 
1.Configure zram for swap.
2.Run some program malloc and access large memory, make sure they
can cause swap.
3.Watch count_shadow_nodes() and shadow_lru_isolate() to make sure
that shadow_nodes are really shrinking by adding printk().

Really sorry for inadequate test, I will try more tests include drop_caches
by sysctl.