From: Baoquan He <bhe@redhat.com>
To: Borislav Petkov <bp@alien8.de>
Cc: lijiang <lijiang@redhat.com>,
linux-kernel@vger.kernel.org, kexec@lists.infradead.org,
tglx@linutronix.de, mingo@redhat.com, akpm@linux-foundation.org,
dave.hansen@linux.intel.com, luto@kernel.org,
peterz@infradead.org, x86@kernel.org, hpa@zytor.com,
dyoung@redhat.com, Thomas.Lendacky@amd.com
Subject: Re: [PATCH 0/3 v11] add reserved e820 ranges to the kdump kernel e820 table
Date: Wed, 12 Jun 2019 09:55:49 +0800 [thread overview]
Message-ID: <20190612015549.GI26148@MiWiFi-R3L-srv> (raw)
In-Reply-To: <20190610113747.GD5488@zn.tnic>
On 06/10/19 at 01:37pm, Borislav Petkov wrote:
> On Sat, Jun 08, 2019 at 06:26:59PM +0800, Baoquan He wrote:
> > OK, I see. Then it should be the issue we have met and talked about with
> > Tom.
> > https://lkml.kernel.org/r/20190604134952.GC26891@MiWiFi-R3L-srv
> >
> > You can apply Tom's patch as below. I tested it, it can make kexec
> > kernel succeed to boot, but failed for kdump kernel booting. The kdump
> > kernel can boot till the end of kernel initialization, then hang with a
> > call trace. I have pasted the log in the above thread. Haven't got the
> > reason.
> > http://lkml.kernel.org/r/508c2853-dc4f-70a6-6fa8-97c950dc31c6@amd.com
>
> I can confirm the same observation.
With further investigation, the failure after applying Tom's patch is
caused by OOM. When increase crashkernel reservation to 512M, kdump
kernel can boot successfully. I noticed your crashkernel reservation is
256M, that will fail and stuck there very possibly.
So Tom's patch can fix the issue. We need further check why much more
crashkernel memory is needed on those AMD boxes with sme support..
Thanks
Baoquan
next prev parent reply other threads:[~2019-06-12 1:55 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-04-23 1:30 [PATCH 0/3 v11] add reserved e820 ranges to the kdump kernel e820 table Lianbo Jiang
2019-04-23 1:30 ` [PATCH 1/3 v11] x86/e820, resource: add a new I/O resource descriptor 'IORES_DESC_RESERVED' Lianbo Jiang
2019-06-20 9:59 ` [tip:x86/kdump] x86/e820, ioport: Add a new I/O resource descriptor IORES_DESC_RESERVED tip-bot for Lianbo Jiang
2019-04-23 1:30 ` [PATCH 2/3 v11] x86/mm: change the check condition in SEV because a new descriptor is introduced Lianbo Jiang
2019-06-20 10:00 ` [tip:x86/kdump] x86/mm: Rework ioremap resource mapping determination tip-bot for Lianbo Jiang
2019-04-23 1:30 ` [PATCH 3/3 v11] x86/kexec_file: add reserved e820 ranges to kdump kernel e820 table Lianbo Jiang
2019-06-20 10:01 ` [tip:x86/kdump] x86/crash: Add e820 reserved ranges to kdump kernel's " tip-bot for Lianbo Jiang
2019-05-28 7:30 ` [PATCH 0/3 v11] add reserved e820 ranges to the kdump kernel " lijiang
2019-06-07 17:42 ` Borislav Petkov
2019-06-08 3:54 ` Baoquan He
2019-06-08 9:10 ` Borislav Petkov
2019-06-08 10:01 ` Baoquan He
2019-06-08 10:06 ` Borislav Petkov
2019-06-08 10:26 ` Baoquan He
2019-06-10 11:37 ` Borislav Petkov
2019-06-12 1:14 ` lijiang
2019-06-12 1:55 ` Baoquan He [this message]
2019-06-12 5:49 ` Dave Young
2019-06-12 15:10 ` Borislav Petkov
2019-06-12 16:52 ` Lendacky, Thomas
2019-06-12 18:07 ` Borislav Petkov
2019-06-12 19:10 ` Lendacky, Thomas
2019-06-13 15:07 ` Baoquan He
2019-06-13 1:18 ` dyoung
2019-06-09 4:02 ` lijiang
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