From: David Hildenbrand <david@redhat.com>
To: Wei Yang <richard.weiyang@gmail.com>,
rppt@kernel.org, akpm@linux-foundation.org
Cc: linux-mm@kvack.org
Subject: Re: [PATCH v2] mm/mm_init.c: print mem_init info after defer_init is done
Date: Tue, 11 Jun 2024 17:12:13 +0200 [thread overview]
Message-ID: <6329e2bc-a903-43a2-a676-3e83ec2b1071@redhat.com> (raw)
In-Reply-To: <20240611145223.16872-1-richard.weiyang@gmail.com>
On 11.06.24 16:52, Wei Yang wrote:
> Current call flow looks like this:
>
> start_kernel
> mm_core_init
> mem_init
> mem_init_print_info
> rest_init
> kernel_init
> kernel_init_freeable
> page_alloc_init_late
> deferred_init_memmap
>
> If CONFIG_DEFERRED_STRUCT_PAGE_INIT, the time mem_init_print_info()
> calls, pages are not totally initialized and freed to buddy.
>
> This has one issue
>
> * nr_free_pages() just contains partial free pages in the system,
> which is not we expect.
>
> Let's print the mem info after defer_init is done.
>
> Also this would help changing totalram_pages accounting, since we plan
> to move the accounting into __free_pages_core().
>
> Signed-off-by: Wei Yang <richard.weiyang@gmail.com>
> CC: David Hildenbrand <david@redhat.com>
Acked-by: David Hildenbrand <david@redhat.com>
Hoping this won't reveal other surprises.
--
Cheers,
David / dhildenb
next prev parent reply other threads:[~2024-06-11 15:12 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-06-11 14:52 Wei Yang
2024-06-11 15:12 ` David Hildenbrand [this message]
2024-06-11 23:58 ` Wei Yang
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