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From: Borislav Petkov <bp@alien8.de>
To: Pingfan Liu <kernelfans@gmail.com>
Cc: Joerg Roedel <jroedel@suse.de>, Baoquan He <bhe@redhat.com>,
	konrad.wilk@oracle.com, Yinghai Lu <yinghai@kernel.org>,
	x86@kernel.org, kexec@lists.infradead.org,
	Jerry Hoemann <jerry.hoemann@hpe.com>,
	LKML <linux-kernel@vger.kernel.org>,
	iommu@lists.linux-foundation.org,
	Mike Rapoport <rppt@linux.vnet.ibm.com>,
	Randy Dunlap <rdunlap@infradead.org>,
	Andrew Morton <akpm@linux-foundation.org>,
	Dave Young <dyoung@redhat.com>,
	vgoyal@redhat.com
Subject: Re: [PATCHv7] x86/kdump: bugfix, make the behavior of crashkernel=X consistent with kaslr
Date: Mon, 25 Feb 2019 10:39:51 +0100	[thread overview]
Message-ID: <20190225093950.GB26145@zn.tnic> (raw)
In-Reply-To: <CAFgQCTtYJOU=rdpzMaxXxRFAHGkOWYXFD+XiHSHMhGdRFmK+9Q@mail.gmail.com>

On Sun, Feb 24, 2019 at 09:25:18PM +0800, Pingfan Liu wrote:
> Maybe I misunderstood you, but does "requested range failed" mean that
> user specify the range? If yes, then it should be the duty of user as
> you said later, not the duty of kernel"

No, it should say that it selected a different range only when the user
didn't specify it. Which would mean that the user didn't care about the
range - she/he only wanted to have *any* crashkernel range reserved.
I.e., crashkernel=X invocation.

> We do not know the memory layout of a system, maybe a system with
> memory less than 4GB. So it is better to try all the range of system
> memory.

Ok. If 4G fails, you set high and then try again.

-- 
Regards/Gruss,
    Boris.

Good mailing practices for 400: avoid top-posting and trim the reply.

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  parent reply	other threads:[~2019-02-25  9:40 UTC|newest]

Thread overview: 45+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-01-21  5:16 [PATCHv7] x86/kdump: bugfix, make the behavior of crashkernel=X consistent with kaslr Pingfan Liu
2019-01-21  6:24 ` Baoquan He
2019-01-25 10:39 ` Borislav Petkov
2019-01-25 13:45   ` Dave Young
2019-01-25 14:08     ` Borislav Petkov
2019-01-28  9:58       ` Dave Young
2019-01-28 10:18         ` Borislav Petkov
2019-06-07 17:30           ` Borislav Petkov
2019-06-10  6:51             ` Dave Young
2019-01-29  5:25       ` Pingfan Liu
2019-01-31  7:42         ` Dave Young
2019-01-31  7:59       ` Dave Young
2019-01-31 10:57         ` Borislav Petkov
2019-01-31 22:27           ` Jerry Hoemann
2019-01-31 23:47             ` Borislav Petkov
2019-02-04 22:30               ` Jerry Hoemann
2019-02-05  8:15                 ` Borislav Petkov
2019-02-06 12:08                   ` Dave Young
2019-02-11 20:48                     ` Dave Young
2019-02-12  5:35                       ` Pingfan Liu
2019-02-15 10:24                       ` Borislav Petkov
2019-02-18  1:48                         ` Dave Young
2019-02-20  7:38                           ` Pingfan Liu
2019-02-20  8:32                           ` Borislav Petkov
2019-02-20  9:41                             ` Dave Young
2019-02-20 12:51                               ` Pingfan Liu
2019-02-21 17:13                               ` Borislav Petkov
2019-02-22  2:11                                 ` Dave Young
2019-02-22  8:42                                   ` Joerg Roedel
2019-02-22 13:00                                     ` Borislav Petkov
2019-02-24 13:25                                       ` Pingfan Liu
2019-02-25  1:53                                         ` Dave Young
2019-02-25  9:39                                         ` Borislav Petkov [this message]
2019-02-25 11:00                                       ` Joerg Roedel
2019-02-25 11:12                                         ` Dave Young
2019-02-25 11:30                                           ` Borislav Petkov
2019-03-01  3:04                                             ` Pingfan Liu
2019-03-01  3:19                                               ` Pingfan Liu
2019-03-22  8:22                                                 ` Dave Young
2019-01-29  5:51   ` Pingfan Liu
2019-01-31 10:50     ` Borislav Petkov
  -- strict thread matches above, loose matches on Subject: below --
2019-01-15  8:07 Pingfan Liu
2019-01-18  3:43 ` Dave Young
2019-01-19  1:25 ` Jerry Hoemann
2019-01-21  5:11   ` Pingfan Liu

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