From: Catalin Marinas <catalin.marinas@arm.com>
To: Baoquan He <bhe@redhat.com>
Cc: linux-kernel@vger.kernel.org, horms@kernel.org,
thunder.leizhen@huawei.com, John.p.donnelly@oracle.com,
will@kernel.org, kexec@lists.infradead.org,
linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH v5] arm64: kdump: simplify the reservation behaviour of crashkernel=,high
Date: Thu, 13 Apr 2023 15:30:33 +0100 [thread overview]
Message-ID: <ZDgSCfLMtL9heS8J@arm.com> (raw)
In-Reply-To: <ZDezLrWSg7qd5K08@MiWiFi-R3L-srv>
On Thu, Apr 13, 2023 at 03:45:50PM +0800, Baoquan He wrote:
> I am OK with this version, or the version with min(SZ_4G,
> arm64_dma_phys_limit), or v4. Please help point out if I got your idea
> correctly. Thanks a lot.
I think we should stick to this patch. The disabling of the ZONE_DMA(32)
is fairly specialised and you are right that we should not introduce an
artificial 4GB crashkernel boundary on such systems. The slight
confusion may be that ,high triggers a search above 4GB where there's
not such boundary but this would match the documentation anyway.
--
Catalin
next prev parent reply other threads:[~2023-04-13 14:30 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-04-07 2:24 [PATCH v5] arm64: kdump: simplify the reservation behaviour of crashkernel=,high Baoquan He
2023-04-07 2:32 ` Baoquan He
2023-04-12 11:51 ` Catalin Marinas
2023-04-13 7:45 ` Baoquan He
2023-04-13 14:30 ` Catalin Marinas [this message]
2023-04-14 2:27 ` Leizhen (ThunderTown)
2023-04-14 9:49 ` Baoquan He
2023-04-14 14:34 ` Will Deacon
2023-04-15 0:43 ` Baoquan He
2023-05-16 3:00 ` Baoquan He
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