From: Sergey Senozhatsky <senozhatsky@chromium.org>
To: Vlastimil Babka <vbabka@suse.cz>,
Thadeu Lima de Souza Cascardo <cascardo@igalia.com>
Cc: linux-kernel@vger.kernel.org, linux-mm@kvack.org,
Andrew Morton <akpm@linux-foundation.org>,
Suren Baghdasaryan <surenb@google.com>,
Michal Hocko <mhocko@suse.com>,
Brendan Jackman <jackmanb@google.com>,
Johannes Weiner <hannes@cmpxchg.org>, Zi Yan <ziy@nvidia.com>,
kernel-dev@igalia.com, Minchan Kim <minchan@kernel.org>,
Sergey Senozhatsky <senozhatsky@chromium.org>,
Yosry Ahmed <yosry.ahmed@linux.dev>,
Nhat Pham <nphamcs@gmail.com>,
Chengming Zhou <chengming.zhou@linux.dev>
Subject: Re: [PATCH] mm: show_mem: show number of zspages in show_free_areas
Date: Tue, 2 Sep 2025 11:10:05 +0900 [thread overview]
Message-ID: <ypp4byiagmgmdaaq3wskjxwxvub7pxhhqlvwsrhsyqlapqp5v2@rbfidxth3z6z> (raw)
In-Reply-To: <f25b1ad3-c2d9-4267-bf7d-f48c78beebc7@suse.cz>
On (25/09/01 20:54), Vlastimil Babka wrote:
> On 9/1/25 20:37, Thadeu Lima de Souza Cascardo wrote:
> > When OOM is triggered, it will show where the pages might be for each zone.
> > When using zram, it might look like lots of pages are missing. After this
> > patch, zspages are shown as below.
>
> AFAIK zswap can also use zsmalloc so this would be reported for zswap with
> the same effect too, right?
Correct.
> > [ 48.792859] Node 0 DMA free:2812kB boost:0kB min:60kB low:72kB high:84kB reserved_highatomic:0KB free_highatomic:0KB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB zspages:11160kB present:15992kB managed:15360kB mlocked:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
> > [ 48.792962] lowmem_reserve[]: 0 956 956 956 956
> > [ 48.792988] Node 0 DMA32 free:3512kB boost:0kB min:3912kB low:4888kB high:5864kB reserved_highatomic:0KB free_highatomic:0KB active_anon:0kB inactive_anon:28kB active_file:8kB inactive_file:16kB unevictable:0kB writepending:0kB zspages:916780kB present:1032064kB managed:978944kB mlocked:0kB bounce:0kB free_pcp:500kB local_pcp:248kB free_cma:0kB
> > [ 48.793118] lowmem_reserve[]: 0 0 0 0 0
> >
> > Signed-off-by: Thadeu Lima de Souza Cascardo <cascardo@igalia.com>
>
> Acked-by: Vlastimil Babka <vbabka@suse.cz>
Reviewed-by: Sergey Senozhatsky <senozhatsky@chromium.org>
next prev parent reply other threads:[~2025-09-02 2:10 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-09-01 18:37 Thadeu Lima de Souza Cascardo
2025-09-01 18:54 ` Vlastimil Babka
2025-09-02 2:10 ` Sergey Senozhatsky [this message]
2025-09-02 1:49 ` SeongJae Park
2025-09-02 3:13 ` SeongJae Park
2025-09-02 4:56 ` Lorenzo Stoakes
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