From: John Donnelly <john.p.donnelly@oracle.com>
To: Arnd Bergmann <arnd@arndb.de>
Cc: John Donnelly <john.p.donnelly@oracle.com>,
"open list:DOCUMENTATION" <linux-doc@vger.kernel.org>,
Chen Zhou <chenzhou10@huawei.com>,
Catalin Marinas <catalin.marinas@arm.com>,
Bhupesh Sharma <bhsharma@redhat.com>,
Dave Young <dyoung@redhat.com>,
kexec mailing list <kexec@lists.infradead.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
Simon Horman <horms@verge.net.au>,
James Morse <james.morse@arm.com>,
Thomas Gleixner <tglx@linutronix.de>,
Prabhakar Kushwaha <pkushwaha@marvell.com>,
Will Deacon <will@kernel.org>, Ingo Molnar <mingo@redhat.com>,
Linux ARM <linux-arm-kernel@lists.infradead.org>
Subject: Re: [PATCH v7 0/4] support reserving crashkernel above 4G on arm64 kdump
Date: Tue, 19 May 2020 15:21:58 -0500 [thread overview]
Message-ID: <3D37F6BE-ECFC-4EC0-A7C4-341F85FC056E@oracle.com> (raw)
In-Reply-To: <CAK8P3a2VrAqefPYF2JqRjwdhgTDtORUgWgVuYxRYWqKxE3+5pA@mail.gmail.com>
> On May 19, 2020, at 5:21 AM, Arnd Bergmann <arnd@arndb.de> wrote:
>
> On Thu, Mar 26, 2020 at 4:10 AM Chen Zhou <chenzhou10@huawei.com> wrote:
>>
>> Hi all,
>>
>> Friendly ping...
>
> I was asked about this patch series, and see that you last posted it in
> December. I think you should rebase it to linux-5.7-rc6 and post the
> entire series again to make progress, as it's unlikely that any maintainer
> would pick up the patches from last year.
>
> For the contents, everything seems reasonable to me, but I noticed that
> you are adding a property to the /chosen node without adding the
> corresponding documentation to
> Documentation/devicetree/bindings/chosen.txt
>
> Please add that, and Cc the devicetree maintainers on the updated
> patch.
>
> Arnd
>
>> On 2019/12/23 23:23, Chen Zhou wrote:
>>> This patch series enable reserving crashkernel above 4G in arm64.
>>>
>>> There are following issues in arm64 kdump:
>>> 1. We use crashkernel=X to reserve crashkernel below 4G, which will fail
>>> when there is no enough low memory.
>>> 2. Currently, crashkernel=Y@X can be used to reserve crashkernel above 4G,
>>> in this case, if swiotlb or DMA buffers are required, crash dump kernel
>>> will boot failure because there is no low memory available for allocation.
>>>
>>> The previous changes and discussions can be retrieved from:
>>>
>>> Changes since [v6]
>>> - Fix build errors reported by kbuild test robot.
> ...
Hi
We found
https://lkml.org/lkml/2020/4/30/1583
Has cured our Out-Of-Memory kdump failures.
From Henry Willard
Subject [PATCH] mm: Limit boost_watermark on small zones.
I am currently not on linux-kernel@vger.kernel.org. dlist for all to see this message so you may want to rebase and see if this cures your OoM issue and share the results.
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next prev parent reply other threads:[~2020-05-19 20:22 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-12-23 15:23 [PATCH v7 0/4] support reserving crashkernel above 4G on arm64 kdump Chen Zhou
2019-12-23 15:23 ` [PATCH v7 1/4] x86: kdump: move reserve_crashkernel_low() into crash_core.c Chen Zhou
2019-12-27 5:54 ` Dave Young
2019-12-27 11:04 ` Chen Zhou
2019-12-28 9:32 ` Dave Young
2019-12-31 1:39 ` Chen Zhou
2020-04-03 7:13 ` Chen Zhou
2020-01-16 15:17 ` James Morse
2020-01-16 15:47 ` John Donnelly
2020-02-24 15:25 ` John Donnelly
2020-03-02 1:29 ` Chen Zhou
2020-01-17 3:58 ` Dave Young
2020-04-03 7:29 ` Chen Zhou
2019-12-23 15:23 ` [PATCH v7 2/4] arm64: kdump: reserve crashkenel above 4G for crash dump kernel Chen Zhou
2020-03-05 10:13 ` Prabhakar Kushwaha
2020-03-07 11:06 ` Chen Zhou
2020-03-07 18:43 ` John Donnelly
2020-03-09 4:59 ` Prabhakar Kushwaha
2020-03-09 4:48 ` Prabhakar Kushwaha
2020-03-09 15:51 ` Prabhakar Kushwaha
2020-03-10 1:30 ` chenzhou
2020-03-10 17:08 ` Prabhakar Kushwaha
2020-03-11 1:44 ` chenzhou
2019-12-23 15:23 ` [PATCH v7 3/4] arm64: kdump: add memory for devices by DT property, low-memory-range Chen Zhou
2019-12-23 15:23 ` [PATCH v7 4/4] kdump: update Documentation about crashkernel on arm64 Chen Zhou
2020-03-26 3:09 ` [PATCH v7 0/4] support reserving crashkernel above 4G on arm64 kdump Chen Zhou
2020-05-19 10:21 ` Arnd Bergmann
2020-05-19 20:21 ` John Donnelly [this message]
2020-05-20 8:32 ` Bhupesh Sharma
2020-05-20 3:30 ` chenzhou
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