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From: Mark Rutland <mark.rutland@arm.com>
To: AKASHI Takahiro <takahiro.akashi@linaro.org>,
	catalin.marinas@arm.com, will.deacon@arm.com,
	james.morse@arm.com, geoff@infradead.org,
	bauerman@linux.vnet.ibm.com, dyoung@redhat.com,
	kexec@lists.infradead.org, linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH v31 09/12] arm64: kdump: provide /proc/vmcore file
Date: Thu, 2 Feb 2017 12:08:50 +0000	[thread overview]
Message-ID: <20170202120850.GL31394@leverpostej> (raw)
In-Reply-To: <20170202120320.GK31394@leverpostej>

On Thu, Feb 02, 2017 at 12:03:20PM +0000, Mark Rutland wrote:
> On Thu, Feb 02, 2017 at 03:24:09PM +0900, AKASHI Takahiro wrote:
> > On Wed, Feb 01, 2017 at 07:21:22PM +0000, Mark Rutland wrote:
> > > On Wed, Feb 01, 2017 at 09:46:28PM +0900, AKASHI Takahiro wrote:

> > > > +/*
> > > > + * reserve_elfcorehdr() - reserves memory for elf core header
> > > > + *
> > > > + * This function reserves elf core header given in "elfcorehdr=" kernel
> > > > + * command line parameter. This region contains all the information about
> > > > + * primary kernel's core image and is used by a dump capture kernel to
> > > > + * access the system memory on primary kernel.
> > > > + */

> Can you also fix the comment above reserve_elfcorehdr()? It refers to a
> non-existent kernel command line option.

... or rather, one that's handled by core code, not
reserve_elfcorehdr().

So more specifically, it would be nicer to have something like:

	/*
	 * reserve_elfcorehdr() - reserves memory for elf core header
	 *
	 * This function reserves the memory occupied by an elf core header
	 * described in the device tree. This region contains all the
	 * information about primary kernel's core image and is used by a dump
	 * capture kernel to access the system memory on primary kernel.
	 */

Thanks,
Mark.

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WARNING: multiple messages have this Message-ID (diff)
From: mark.rutland@arm.com (Mark Rutland)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v31 09/12] arm64: kdump: provide /proc/vmcore file
Date: Thu, 2 Feb 2017 12:08:50 +0000	[thread overview]
Message-ID: <20170202120850.GL31394@leverpostej> (raw)
In-Reply-To: <20170202120320.GK31394@leverpostej>

On Thu, Feb 02, 2017 at 12:03:20PM +0000, Mark Rutland wrote:
> On Thu, Feb 02, 2017 at 03:24:09PM +0900, AKASHI Takahiro wrote:
> > On Wed, Feb 01, 2017 at 07:21:22PM +0000, Mark Rutland wrote:
> > > On Wed, Feb 01, 2017 at 09:46:28PM +0900, AKASHI Takahiro wrote:

> > > > +/*
> > > > + * reserve_elfcorehdr() - reserves memory for elf core header
> > > > + *
> > > > + * This function reserves elf core header given in "elfcorehdr=" kernel
> > > > + * command line parameter. This region contains all the information about
> > > > + * primary kernel's core image and is used by a dump capture kernel to
> > > > + * access the system memory on primary kernel.
> > > > + */

> Can you also fix the comment above reserve_elfcorehdr()? It refers to a
> non-existent kernel command line option.

... or rather, one that's handled by core code, not
reserve_elfcorehdr().

So more specifically, it would be nicer to have something like:

	/*
	 * reserve_elfcorehdr() - reserves memory for elf core header
	 *
	 * This function reserves the memory occupied by an elf core header
	 * described in the device tree. This region contains all the
	 * information about primary kernel's core image and is used by a dump
	 * capture kernel to access the system memory on primary kernel.
	 */

Thanks,
Mark.

  reply	other threads:[~2017-02-02 12:08 UTC|newest]

Thread overview: 92+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-02-01 12:42 [PATCH v31 00/12] add kdump support AKASHI Takahiro
2017-02-01 12:42 ` AKASHI Takahiro
2017-02-01 12:45 ` [PATCH v31 01/12] memblock: add memblock_cap_memory_range() AKASHI Takahiro
2017-02-01 12:45   ` AKASHI Takahiro
2017-02-01 12:45   ` AKASHI Takahiro
2017-02-01 12:46 ` [PATCH v31 02/12] arm64: limit memory regions based on DT property, usable-memory-range AKASHI Takahiro
2017-02-01 12:46   ` AKASHI Takahiro
2017-02-01 15:07   ` Mark Rutland
2017-02-01 15:07     ` Mark Rutland
2017-02-02  4:21     ` AKASHI Takahiro
2017-02-02  4:21       ` AKASHI Takahiro
2017-02-01 12:46 ` [PATCH v31 03/12] arm64: kdump: reserve memory for crash dump kernel AKASHI Takahiro
2017-02-01 12:46   ` AKASHI Takahiro
2017-02-01 15:26   ` Mark Rutland
2017-02-01 15:26     ` Mark Rutland
2017-02-02  4:52     ` AKASHI Takahiro
2017-02-02  4:52       ` AKASHI Takahiro
2017-02-02 11:26       ` Mark Rutland
2017-02-02 11:26         ` Mark Rutland
2017-02-02 13:44         ` AKASHI Takahiro
2017-02-02 13:44           ` AKASHI Takahiro
2017-02-01 12:46 ` [PATCH v31 04/12] arm64: mm: allow for unmapping part of kernel mapping AKASHI Takahiro
2017-02-01 12:46   ` AKASHI Takahiro
2017-02-01 16:03   ` Mark Rutland
2017-02-01 16:03     ` Mark Rutland
2017-02-02 10:21     ` AKASHI Takahiro
2017-02-02 10:21       ` AKASHI Takahiro
2017-02-02 11:44       ` Mark Rutland
2017-02-02 11:44         ` Mark Rutland
2017-02-02 14:01         ` AKASHI Takahiro
2017-02-02 14:01           ` AKASHI Takahiro
2017-02-02 14:35           ` Mark Rutland
2017-02-02 14:35             ` Mark Rutland
2017-02-02 14:55             ` AKASHI Takahiro
2017-02-02 14:55               ` AKASHI Takahiro
2017-02-03  6:13               ` AKASHI Takahiro
2017-02-03  6:13                 ` AKASHI Takahiro
2017-02-03 14:22                 ` Mark Rutland
2017-02-03 14:22                   ` Mark Rutland
2017-02-01 12:46 ` [PATCH v31 05/12] arm64: kdump: protect crash dump kernel memory AKASHI Takahiro
2017-02-01 12:46   ` AKASHI Takahiro
2017-02-01 18:00   ` Mark Rutland
2017-02-01 18:00     ` Mark Rutland
2017-02-01 18:25     ` Mark Rutland
2017-02-01 18:25       ` Mark Rutland
2017-02-02 10:39       ` AKASHI Takahiro
2017-02-02 10:39         ` AKASHI Takahiro
2017-02-02 11:54         ` Mark Rutland
2017-02-02 11:54           ` Mark Rutland
2017-02-03  1:45           ` AKASHI Takahiro
2017-02-03  1:45             ` AKASHI Takahiro
2017-02-03 11:51             ` Mark Rutland
2017-02-03 11:51               ` Mark Rutland
2017-02-02 10:45       ` James Morse
2017-02-02 10:45         ` James Morse
2017-02-02 11:19         ` AKASHI Takahiro
2017-02-02 11:19           ` AKASHI Takahiro
2017-02-02 11:48         ` Mark Rutland
2017-02-02 11:48           ` Mark Rutland
2017-02-02 10:31     ` AKASHI Takahiro
2017-02-02 10:31       ` AKASHI Takahiro
2017-02-02 11:16       ` Mark Rutland
2017-02-02 11:16         ` Mark Rutland
2017-02-02 14:36         ` AKASHI Takahiro
2017-02-02 14:36           ` AKASHI Takahiro
2017-02-02 15:36           ` Mark Rutland
2017-02-02 15:36             ` Mark Rutland
2017-02-01 12:46 ` [PATCH v31 06/12] arm64: hibernate: preserve kdump image around hibernation AKASHI Takahiro
2017-02-01 12:46   ` AKASHI Takahiro
2017-02-01 12:46 ` [PATCH v31 07/12] arm64: kdump: implement machine_crash_shutdown() AKASHI Takahiro
2017-02-01 12:46   ` AKASHI Takahiro
2017-02-01 12:46 ` [PATCH v31 08/12] arm64: kdump: add VMCOREINFO's for user-space tools AKASHI Takahiro
2017-02-01 12:46   ` AKASHI Takahiro
2017-02-01 12:46 ` [PATCH v31 09/12] arm64: kdump: provide /proc/vmcore file AKASHI Takahiro
2017-02-01 12:46   ` AKASHI Takahiro
2017-02-01 19:21   ` Mark Rutland
2017-02-01 19:21     ` Mark Rutland
2017-02-02  6:24     ` AKASHI Takahiro
2017-02-02  6:24       ` AKASHI Takahiro
2017-02-02 12:03       ` Mark Rutland
2017-02-02 12:03         ` Mark Rutland
2017-02-02 12:08         ` Mark Rutland [this message]
2017-02-02 12:08           ` Mark Rutland
2017-02-02 14:39           ` AKASHI Takahiro
2017-02-02 14:39             ` AKASHI Takahiro
2017-02-01 12:46 ` [PATCH v31 10/12] arm64: kdump: enable kdump in defconfig AKASHI Takahiro
2017-02-01 12:46   ` AKASHI Takahiro
2017-02-01 12:46 ` [PATCH v31 11/12] Documentation: kdump: describe arm64 port AKASHI Takahiro
2017-02-01 12:46   ` AKASHI Takahiro
2017-02-01 12:48 ` [PATCH v31 12/12] Documentation: dt: chosen properties for arm64 kdump AKASHI Takahiro
2017-02-01 12:48   ` AKASHI Takahiro
2017-02-01 12:48   ` AKASHI Takahiro

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