From: David Hildenbrand <david@redhat.com>
To: Wupeng Ma <mawupeng1@huawei.com>,
corbet@lwn.net, will@kernel.org, ardb@kernel.org,
catalin.marinas@arm.com
Cc: tglx@linutronix.de, mingo@redhat.com, bp@alien8.de,
dave.hansen@linux.intel.com, x86@kernel.org, hpa@zytor.com,
dvhart@infradead.org, andy@infradead.org, rppt@kernel.org,
akpm@linux-foundation.org, paul.walmsley@sifive.com,
palmer@dabbelt.com, aou@eecs.berkeley.edu, paulmck@kernel.org,
keescook@chromium.org, songmuchun@bytedance.com,
rdunlap@infradead.org, damien.lemoal@opensource.wdc.com,
swboyd@chromium.org, wei.liu@kernel.org, robin.murphy@arm.com,
anshuman.khandual@arm.com, thunder.leizhen@huawei.com,
wangkefeng.wang@huawei.com, gpiccoli@igalia.com,
chenhuacai@kernel.org, geert@linux-m68k.org,
chenzhou10@huawei.com, vijayb@linux.microsoft.com,
linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-arm-kernel@lists.infradead.org, linux-efi@vger.kernel.org,
platform-driver-x86@vger.kernel.org, linux-mm@kvack.org,
linux-riscv@lists.infradead.org
Subject: Re: [PATCH v3 4/6] mm: Demote warning message in vmemmap_verify() to debug level
Date: Tue, 7 Jun 2022 14:25:47 +0200 [thread overview]
Message-ID: <b1975f44-2552-a03c-bb6f-1452f1fd99c0@redhat.com> (raw)
In-Reply-To: <20220607093805.1354256-5-mawupeng1@huawei.com>
On 07.06.22 11:38, Wupeng Ma wrote:
> From: Ma Wupeng <mawupeng1@huawei.com>
>
> For a system only have limited mirrored memory or some numa node without
> mirrored memory, the per node vmemmap page_structs prefer to allocate
> memory from mirrored region, which will lead to vmemmap_verify() in
> vmemmap_populate_basepages() report lots of warning message.
>
> This patch demote the "potential offnode page_structs" warning messages
> to debug level to avoid a very long print during bootup.
>
> Signed-off-by: Ma Wupeng <mawupeng1@huawei.com>
> ---
> mm/sparse-vmemmap.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/mm/sparse-vmemmap.c b/mm/sparse-vmemmap.c
> index f4fa61dbbee3..78debdb89eb1 100644
> --- a/mm/sparse-vmemmap.c
> +++ b/mm/sparse-vmemmap.c
> @@ -528,7 +528,7 @@ void __meminit vmemmap_verify(pte_t *pte, int node,
> int actual_node = early_pfn_to_nid(pfn);
>
> if (node_distance(actual_node, node) > LOCAL_DISTANCE)
> - pr_warn("[%lx-%lx] potential offnode page_structs\n",
> + pr_debug("[%lx-%lx] potential offnode page_structs\n",
> start, end - 1);
> }
>
This will possibly hide it in environments where this might indeed
indicate performance issues.
What about a pr_warn_once()?
--
Thanks,
David / dhildenb
WARNING: multiple messages have this Message-ID (diff)
From: David Hildenbrand <david@redhat.com>
To: Wupeng Ma <mawupeng1@huawei.com>,
corbet@lwn.net, will@kernel.org, ardb@kernel.org,
catalin.marinas@arm.com
Cc: tglx@linutronix.de, mingo@redhat.com, bp@alien8.de,
dave.hansen@linux.intel.com, x86@kernel.org, hpa@zytor.com,
dvhart@infradead.org, andy@infradead.org, rppt@kernel.org,
akpm@linux-foundation.org, paul.walmsley@sifive.com,
palmer@dabbelt.com, aou@eecs.berkeley.edu, paulmck@kernel.org,
keescook@chromium.org, songmuchun@bytedance.com,
rdunlap@infradead.org, damien.lemoal@opensource.wdc.com,
swboyd@chromium.org, wei.liu@kernel.org, robin.murphy@arm.com,
anshuman.khandual@arm.com, thunder.leizhen@huawei.com,
wangkefeng.wang@huawei.com, gpiccoli@igalia.com,
chenhuacai@kernel.org, geert@linux-m68k.org,
chenzhou10@huawei.com, vijayb@linux.microsoft.com,
linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-arm-kernel@lists.infradead.org, linux-efi@vger.kernel.org,
platform-driver-x86@vger.kernel.org, linux-mm@kvack.org,
linux-riscv@lists.infradead.org
Subject: Re: [PATCH v3 4/6] mm: Demote warning message in vmemmap_verify() to debug level
Date: Tue, 7 Jun 2022 14:25:47 +0200 [thread overview]
Message-ID: <b1975f44-2552-a03c-bb6f-1452f1fd99c0@redhat.com> (raw)
In-Reply-To: <20220607093805.1354256-5-mawupeng1@huawei.com>
On 07.06.22 11:38, Wupeng Ma wrote:
> From: Ma Wupeng <mawupeng1@huawei.com>
>
> For a system only have limited mirrored memory or some numa node without
> mirrored memory, the per node vmemmap page_structs prefer to allocate
> memory from mirrored region, which will lead to vmemmap_verify() in
> vmemmap_populate_basepages() report lots of warning message.
>
> This patch demote the "potential offnode page_structs" warning messages
> to debug level to avoid a very long print during bootup.
>
> Signed-off-by: Ma Wupeng <mawupeng1@huawei.com>
> ---
> mm/sparse-vmemmap.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/mm/sparse-vmemmap.c b/mm/sparse-vmemmap.c
> index f4fa61dbbee3..78debdb89eb1 100644
> --- a/mm/sparse-vmemmap.c
> +++ b/mm/sparse-vmemmap.c
> @@ -528,7 +528,7 @@ void __meminit vmemmap_verify(pte_t *pte, int node,
> int actual_node = early_pfn_to_nid(pfn);
>
> if (node_distance(actual_node, node) > LOCAL_DISTANCE)
> - pr_warn("[%lx-%lx] potential offnode page_structs\n",
> + pr_debug("[%lx-%lx] potential offnode page_structs\n",
> start, end - 1);
> }
>
This will possibly hide it in environments where this might indeed
indicate performance issues.
What about a pr_warn_once()?
--
Thanks,
David / dhildenb
_______________________________________________
linux-riscv mailing list
linux-riscv@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-riscv
WARNING: multiple messages have this Message-ID (diff)
From: David Hildenbrand <david@redhat.com>
To: Wupeng Ma <mawupeng1@huawei.com>,
corbet@lwn.net, will@kernel.org, ardb@kernel.org,
catalin.marinas@arm.com
Cc: tglx@linutronix.de, mingo@redhat.com, bp@alien8.de,
dave.hansen@linux.intel.com, x86@kernel.org, hpa@zytor.com,
dvhart@infradead.org, andy@infradead.org, rppt@kernel.org,
akpm@linux-foundation.org, paul.walmsley@sifive.com,
palmer@dabbelt.com, aou@eecs.berkeley.edu, paulmck@kernel.org,
keescook@chromium.org, songmuchun@bytedance.com,
rdunlap@infradead.org, damien.lemoal@opensource.wdc.com,
swboyd@chromium.org, wei.liu@kernel.org, robin.murphy@arm.com,
anshuman.khandual@arm.com, thunder.leizhen@huawei.com,
wangkefeng.wang@huawei.com, gpiccoli@igalia.com,
chenhuacai@kernel.org, geert@linux-m68k.org,
chenzhou10@huawei.com, vijayb@linux.microsoft.com,
linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-arm-kernel@lists.infradead.org, linux-efi@vger.kernel.org,
platform-driver-x86@vger.kernel.org, linux-mm@kvack.org,
linux-riscv@lists.infradead.org
Subject: Re: [PATCH v3 4/6] mm: Demote warning message in vmemmap_verify() to debug level
Date: Tue, 7 Jun 2022 14:25:47 +0200 [thread overview]
Message-ID: <b1975f44-2552-a03c-bb6f-1452f1fd99c0@redhat.com> (raw)
In-Reply-To: <20220607093805.1354256-5-mawupeng1@huawei.com>
On 07.06.22 11:38, Wupeng Ma wrote:
> From: Ma Wupeng <mawupeng1@huawei.com>
>
> For a system only have limited mirrored memory or some numa node without
> mirrored memory, the per node vmemmap page_structs prefer to allocate
> memory from mirrored region, which will lead to vmemmap_verify() in
> vmemmap_populate_basepages() report lots of warning message.
>
> This patch demote the "potential offnode page_structs" warning messages
> to debug level to avoid a very long print during bootup.
>
> Signed-off-by: Ma Wupeng <mawupeng1@huawei.com>
> ---
> mm/sparse-vmemmap.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/mm/sparse-vmemmap.c b/mm/sparse-vmemmap.c
> index f4fa61dbbee3..78debdb89eb1 100644
> --- a/mm/sparse-vmemmap.c
> +++ b/mm/sparse-vmemmap.c
> @@ -528,7 +528,7 @@ void __meminit vmemmap_verify(pte_t *pte, int node,
> int actual_node = early_pfn_to_nid(pfn);
>
> if (node_distance(actual_node, node) > LOCAL_DISTANCE)
> - pr_warn("[%lx-%lx] potential offnode page_structs\n",
> + pr_debug("[%lx-%lx] potential offnode page_structs\n",
> start, end - 1);
> }
>
This will possibly hide it in environments where this might indeed
indicate performance issues.
What about a pr_warn_once()?
--
Thanks,
David / dhildenb
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next prev parent reply other threads:[~2022-06-07 12:26 UTC|newest]
Thread overview: 102+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-06-07 9:37 [PATCH v3 0/6] introduce mirrored memory support for arm64 Wupeng Ma
2022-06-07 9:37 ` Wupeng Ma
2022-06-07 9:37 ` Wupeng Ma
2022-06-07 9:38 ` [PATCH v3 1/6] efi: Make efi_find_mirror() public Wupeng Ma
2022-06-07 9:38 ` Wupeng Ma
2022-06-07 9:38 ` Wupeng Ma
2022-06-10 9:22 ` Kefeng Wang
2022-06-10 9:22 ` Kefeng Wang
2022-06-10 9:22 ` Kefeng Wang
2022-06-07 9:38 ` [PATCH v3 2/6] arm64/mirror: arm64 enabling - find mirrored memory ranges Wupeng Ma
2022-06-07 9:38 ` Wupeng Ma
2022-06-07 9:38 ` Wupeng Ma
2022-06-10 9:27 ` Kefeng Wang
2022-06-10 9:27 ` Kefeng Wang
2022-06-10 9:27 ` Kefeng Wang
2022-06-10 9:34 ` Ard Biesheuvel
2022-06-10 9:34 ` Ard Biesheuvel
2022-06-10 9:34 ` Ard Biesheuvel
2022-06-10 10:24 ` Kefeng Wang
2022-06-10 10:24 ` Kefeng Wang
2022-06-10 10:24 ` Kefeng Wang
2022-06-10 11:17 ` Ard Biesheuvel
2022-06-10 11:17 ` Ard Biesheuvel
2022-06-10 11:17 ` Ard Biesheuvel
2022-06-07 9:38 ` [PATCH v3 3/6] mm: Ratelimited mirrored memory related warning messages Wupeng Ma
2022-06-07 9:38 ` Wupeng Ma
2022-06-07 9:38 ` Wupeng Ma
2022-06-07 12:24 ` David Hildenbrand
2022-06-07 12:24 ` David Hildenbrand
2022-06-07 12:24 ` David Hildenbrand
2022-06-08 9:44 ` Mike Rapoport
2022-06-08 9:44 ` Mike Rapoport
2022-06-08 9:44 ` Mike Rapoport
2022-06-08 10:02 ` Anshuman Khandual
2022-06-08 10:02 ` Anshuman Khandual
2022-06-08 10:02 ` Anshuman Khandual
2022-06-10 9:29 ` Kefeng Wang
2022-06-10 9:29 ` Kefeng Wang
2022-06-10 9:29 ` Kefeng Wang
2022-06-07 9:38 ` [PATCH v3 4/6] mm: Demote warning message in vmemmap_verify() to debug level Wupeng Ma
2022-06-07 9:38 ` Wupeng Ma
2022-06-07 9:38 ` Wupeng Ma
2022-06-07 12:25 ` David Hildenbrand [this message]
2022-06-07 12:25 ` David Hildenbrand
2022-06-07 12:25 ` David Hildenbrand
2022-06-08 1:26 ` mawupeng
2022-06-08 1:26 ` mawupeng
2022-06-08 1:26 ` mawupeng
2022-06-08 10:00 ` Anshuman Khandual
2022-06-08 10:00 ` Anshuman Khandual
2022-06-08 10:00 ` Anshuman Khandual
2022-06-09 8:13 ` mawupeng
2022-06-09 8:13 ` mawupeng
2022-06-09 8:13 ` mawupeng
2022-06-10 9:35 ` Kefeng Wang
2022-06-10 9:35 ` Kefeng Wang
2022-06-10 9:35 ` Kefeng Wang
2022-06-07 9:38 ` [PATCH v3 5/6] mm: Add mirror flag back on initrd memory Wupeng Ma
2022-06-07 9:38 ` Wupeng Ma
2022-06-07 9:38 ` Wupeng Ma
2022-06-07 12:21 ` David Hildenbrand
2022-06-07 12:21 ` David Hildenbrand
2022-06-07 12:21 ` David Hildenbrand
2022-06-07 14:49 ` Ard Biesheuvel
2022-06-07 14:49 ` Ard Biesheuvel
2022-06-07 14:49 ` Ard Biesheuvel
2022-06-08 7:27 ` mawupeng
2022-06-08 7:27 ` mawupeng
2022-06-08 7:27 ` mawupeng
2022-06-08 10:02 ` Mike Rapoport
2022-06-08 10:02 ` Mike Rapoport
2022-06-08 10:02 ` Mike Rapoport
2022-06-08 10:08 ` David Hildenbrand
2022-06-08 10:08 ` David Hildenbrand
2022-06-08 10:08 ` David Hildenbrand
2022-06-08 10:12 ` Ard Biesheuvel
2022-06-08 10:12 ` Ard Biesheuvel
2022-06-08 10:12 ` Ard Biesheuvel
2022-06-09 8:15 ` mawupeng
2022-06-09 8:15 ` mawupeng
2022-06-09 8:15 ` mawupeng
2022-06-10 11:06 ` Ard Biesheuvel
2022-06-10 11:06 ` Ard Biesheuvel
2022-06-10 11:06 ` Ard Biesheuvel
2022-06-07 9:38 ` [PATCH v3 6/6] efi: Disable mirror feature if kernelcore is not specified Wupeng Ma
2022-06-07 9:38 ` Wupeng Ma
2022-06-07 9:38 ` Wupeng Ma
2022-06-10 11:20 ` Ard Biesheuvel
2022-06-10 11:20 ` Ard Biesheuvel
2022-06-10 11:20 ` Ard Biesheuvel
2022-06-10 12:15 ` Kefeng Wang
2022-06-10 12:15 ` Kefeng Wang
2022-06-10 12:15 ` Kefeng Wang
2022-06-10 11:23 ` [PATCH v3 0/6] introduce mirrored memory support for arm64 Ard Biesheuvel
2022-06-10 11:23 ` Ard Biesheuvel
2022-06-10 11:23 ` Ard Biesheuvel
2022-06-10 11:24 ` Ard Biesheuvel
2022-06-10 11:24 ` Ard Biesheuvel
2022-06-10 11:24 ` Ard Biesheuvel
2022-06-11 9:56 ` Mike Rapoport
2022-06-11 9:56 ` Mike Rapoport
2022-06-11 9:56 ` Mike Rapoport
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=b1975f44-2552-a03c-bb6f-1452f1fd99c0@redhat.com \
--to=david@redhat.com \
--cc=akpm@linux-foundation.org \
--cc=andy@infradead.org \
--cc=anshuman.khandual@arm.com \
--cc=aou@eecs.berkeley.edu \
--cc=ardb@kernel.org \
--cc=bp@alien8.de \
--cc=catalin.marinas@arm.com \
--cc=chenhuacai@kernel.org \
--cc=chenzhou10@huawei.com \
--cc=corbet@lwn.net \
--cc=damien.lemoal@opensource.wdc.com \
--cc=dave.hansen@linux.intel.com \
--cc=dvhart@infradead.org \
--cc=geert@linux-m68k.org \
--cc=gpiccoli@igalia.com \
--cc=hpa@zytor.com \
--cc=keescook@chromium.org \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-doc@vger.kernel.org \
--cc=linux-efi@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mm@kvack.org \
--cc=linux-riscv@lists.infradead.org \
--cc=mawupeng1@huawei.com \
--cc=mingo@redhat.com \
--cc=palmer@dabbelt.com \
--cc=paul.walmsley@sifive.com \
--cc=paulmck@kernel.org \
--cc=platform-driver-x86@vger.kernel.org \
--cc=rdunlap@infradead.org \
--cc=robin.murphy@arm.com \
--cc=rppt@kernel.org \
--cc=songmuchun@bytedance.com \
--cc=swboyd@chromium.org \
--cc=tglx@linutronix.de \
--cc=thunder.leizhen@huawei.com \
--cc=vijayb@linux.microsoft.com \
--cc=wangkefeng.wang@huawei.com \
--cc=wei.liu@kernel.org \
--cc=will@kernel.org \
--cc=x86@kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.