From: Vlastimil Babka <vbabka@suse.cz>
To: "Christoph Lameter (Ampere)" <cl@gentwo.org>,
Hyeonggon Yoo <42.hyeyoo@gmail.com>
Cc: "yuan.gao" <yuan.gao@ucloud.cn>,
penberg@kernel.org, rientjes@google.com, iamjoonsoo.kim@lge.com,
akpm@linux-foundation.org, roman.gushchin@linux.dev,
linux-mm@kvack.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH v2] mm/slub: Avoid list corruption when removing a slab from the full list
Date: Tue, 8 Oct 2024 11:17:51 +0200 [thread overview]
Message-ID: <49469e9f-ca42-4250-b949-66247f623c3d@suse.cz> (raw)
In-Reply-To: <006695cb-368c-9afc-80b5-29338e85ab99@gentwo.org>
On 10/7/24 18:40, Christoph Lameter (Ampere) wrote:
>
> list_del() in remove_partial() sets poison values for next/prev so there
> should no list
> corruption but a failure showing the poison values.
Yeah that's what is reported, but there's still a mention of list corruption:
[ 4277.385669] list_del corruption, ffffea00044b3e50->next is LIST_POISON1 (dead000000000100)
> static inline void list_del(struct list_head *entry)
> {
> __list_del_entry(entry);
> entry->next = LIST_POISON1;
> entry->prev = LIST_POISON2;
> }
>
next prev parent reply other threads:[~2024-10-08 9:17 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-10-07 9:18 yuan.gao
2024-10-07 14:29 ` Vlastimil Babka
2024-10-07 15:03 ` Hyeonggon Yoo
2024-10-07 16:00 ` Christoph Lameter (Ampere)
2024-10-07 16:40 ` Christoph Lameter (Ampere)
2024-10-08 9:17 ` Vlastimil Babka [this message]
2024-10-08 13:28 ` yuan.gao
2024-10-08 10:25 ` Vlastimil Babka
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