From: Kefeng Wang <wangkefeng.wang@huawei.com>
To: Greg KH <gregkh@linuxfoundation.org>
Cc: Jing Xiangfeng <jingxiangfeng@huawei.com>,
Nicolas Saenz Julienne <nsaenzjulienne@suse.de>,
<catalin.marinas@arm.com>, <will@kernel.org>,
<akpm@linux-foundation.org>, <guohanjun@huawei.com>,
<sudeep.holla@arm.com>, <song.bao.hua@hisilicon.com>,
<ardb@kernel.org>, <anshuman.khandual@arm.com>,
<stable@vger.kernel.org>, <linux-arm-kernel@lists.infradead.org>,
<linux-kernel@vger.kernel.org>, <linux-mm@kvack.org>,
Li Huafei <lihuafei1@huawei.com>
Subject: Re: [PATCH stable v5.10 0/7] arm64: Default to 32-bit wide ZONE_DMA
Date: Wed, 23 Jun 2021 15:25:10 +0800 [thread overview]
Message-ID: <e47df0fd-0ddd-408b-2972-1b6d0a786f00@huawei.com> (raw)
In-Reply-To: <YNLe4CGtOgVvTOMN@kroah.com>
On 2021/6/23 15:12, Greg KH wrote:
> On Wed, Jun 23, 2021 at 02:59:59PM +0800, Kefeng Wang wrote:
>> Hi Greg,
>>
>> There are two more patches about the ZONE_DMA[32] changes,
>
> What ZONE_DMA changes?
See the subject, [PATCH stable v5.10 0/7] arm64: Default to 32-bit wide
ZONE_DMA, We asked the ARM64 ZONE_DMA change backport before, link[1]
>
>> especially the
>> second one, both them need be backported, thanks.
>
> Backported to where?
stable 5.10
>
>> 791ab8b2e3db - arm64: Ignore any DMA offsets in the max_zone_phys()
>> calculation
>> 2687275a5843 - arm64: Force NO_BLOCK_MAPPINGS if crashkernel reservation is
>> required
>
> Have you tried these patches? Where do they need to be applied to?
Yes, we tested it, without them, especially the second one, we will
meet crash when using kexec boot, also there is discussion in [2]
and [3] from Catalin.
>
> confused,
>
Sorry about this, should add more information, thanks.
[1]
https://lore.kernel.org/linux-riscv/20210303073319.2215839-1-jingxiangfeng@huawei.com/
[2]
https://lore.kernel.org/linux-devicetree/e60d643e-4879-3fc3-737d-2c145332a6d7@arm.com/
[3]
https://lore.kernel.org/linux-arm-kernel/20201119175556.18681-1-catalin.marinas@arm.com/
> greg k-h
> .
>
next prev parent reply other threads:[~2021-06-23 7:25 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-03-03 7:33 Jing Xiangfeng
2021-03-03 7:33 ` [PATCH stable v5.10 1/7] arm64: mm: Move reserve_crashkernel() into mem_init() Jing Xiangfeng
2021-03-03 7:33 ` [PATCH stable v5.10 2/7] arm64: mm: Move zone_dma_bits initialization into zone_sizes_init() Jing Xiangfeng
2021-03-03 7:33 ` [PATCH stable v5.10 3/7] of/address: Introduce of_dma_get_max_cpu_address() Jing Xiangfeng
2021-03-03 7:33 ` [PATCH stable v5.10 4/7] of: unittest: Add test for of_dma_get_max_cpu_address() Jing Xiangfeng
2021-03-03 7:33 ` [PATCH stable v5.10 5/7] arm64: mm: Set ZONE_DMA size based on devicetree's dma-ranges Jing Xiangfeng
2021-03-03 7:33 ` [PATCH stable v5.10 6/7] arm64: mm: Set ZONE_DMA size based on early IORT scan Jing Xiangfeng
2021-03-03 7:33 ` [PATCH stable v5.10 7/7] mm: Remove examples from enum zone_type comment Jing Xiangfeng
2021-03-04 13:46 ` [PATCH stable v5.10 0/7] arm64: Default to 32-bit wide ZONE_DMA Greg KH
2021-03-04 14:05 ` Nicolas Saenz Julienne
2021-03-04 14:17 ` Greg KH
2021-03-04 15:09 ` Nicolas Saenz Julienne
2021-03-07 15:24 ` Greg KH
2021-03-08 3:20 ` Jing Xiangfeng
2021-03-08 9:58 ` Greg KH
2021-05-11 12:35 ` Kefeng Wang
2021-05-12 12:06 ` Greg KH
2021-06-23 6:59 ` Kefeng Wang
2021-06-23 7:12 ` Greg KH
2021-06-23 7:25 ` Kefeng Wang [this message]
2021-06-23 7:34 ` Greg KH
2021-06-23 8:01 ` Kefeng Wang
2021-06-25 10:19 ` Greg KH
2021-06-26 1:19 ` Kefeng Wang
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