From: mark.rutland@arm.com (Mark Rutland)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v33 00/14] add kdump support
Date: Fri, 17 Mar 2017 15:04:12 +0000 [thread overview]
Message-ID: <20170317150411.GH5940@leverpostej> (raw)
In-Reply-To: <1489759373.17202.44.camel@infradead.org>
On Fri, Mar 17, 2017 at 02:02:53PM +0000, David Woodhouse wrote:
> On Fri, 2017-03-17 at 11:43 +0000, David Woodhouse wrote:
> >
> > Is this one going to be be my fault too?
>
> Looks like it isn't my fault. In ipi_cpu_crash_stop() we don't modify
> the online mask. Which is reasonable enough if we want to preserve its
> original contents from before the crash, but it does make that
> WARN_ON() in machine_kexec() a false positive.
>
> Btw, why is this a normal IPI and not something... less maskable?
> On x86 we use NMI for that...
Architecturally, arm64 does not have an NMI.
There's been some work to try to get pseudo-NMIs using GICv3 priorities,
but that's about the closest we can get today.
Thanks,
Mark.
next prev parent reply other threads:[~2017-03-17 15:04 UTC|newest]
Thread overview: 42+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-03-15 9:56 [PATCH v33 00/14] add kdump support AKASHI Takahiro
2017-03-15 9:59 ` [PATCH v33 01/14] memblock: add memblock_clear_nomap() AKASHI Takahiro
2017-03-15 9:59 ` [PATCH v33 02/14] memblock: add memblock_cap_memory_range() AKASHI Takahiro
2017-03-15 9:59 ` [PATCH v33 03/14] arm64: limit memory regions based on DT property, usable-memory-range AKASHI Takahiro
2017-03-15 9:59 ` [PATCH v33 04/14] arm64: kdump: reserve memory for crash dump kernel AKASHI Takahiro
2017-03-17 10:46 ` David Woodhouse
2017-03-17 11:31 ` AKASHI Takahiro
2017-03-17 11:32 ` David Woodhouse
2017-03-15 9:59 ` [PATCH v33 05/14] arm64: mm: allow for unmapping part of kernel mapping AKASHI Takahiro
2017-03-21 10:35 ` James Morse
2017-03-23 11:43 ` AKASHI Takahiro
2017-03-24 10:57 ` Ard Biesheuvel
2017-03-27 13:49 ` AKASHI Takahiro
2017-03-21 11:16 ` Ard Biesheuvel
2017-03-23 10:56 ` AKASHI Takahiro
2017-03-15 9:59 ` [PATCH v33 06/14] arm64: kdump: protect crash dump kernel memory AKASHI Takahiro
2017-03-15 9:59 ` [PATCH v33 07/14] arm64: hibernate: preserve kdump image around hibernation AKASHI Takahiro
2017-03-21 18:25 ` James Morse
2017-03-23 11:29 ` AKASHI Takahiro
2017-03-15 9:59 ` [PATCH v33 08/14] arm64: kdump: implement machine_crash_shutdown() AKASHI Takahiro
2017-03-15 9:59 ` [PATCH v33 09/14] arm64: kdump: add VMCOREINFO's for user-space tools AKASHI Takahiro
2017-03-15 9:59 ` [PATCH v33 10/14] arm64: kdump: provide /proc/vmcore file AKASHI Takahiro
2017-03-15 9:59 ` [PATCH v33 11/14] arm64: kdump: enable kdump in defconfig AKASHI Takahiro
2017-03-15 9:59 ` [PATCH v33 12/14] Documentation: kdump: describe arm64 port AKASHI Takahiro
2017-03-15 10:00 ` [PATCH v33 13/14] Documentation: dt: chosen properties for arm64 kdump AKASHI Takahiro
2017-03-15 10:01 ` [PATCH v33 14/14] efi/libstub/arm*: Set default address and size cells values for an empty dtb AKASHI Takahiro
2017-03-15 11:41 ` [PATCH v33 00/14] add kdump support David Woodhouse
2017-03-16 0:23 ` AKASHI Takahiro
2017-03-16 10:29 ` David Woodhouse
2017-03-17 11:43 ` David Woodhouse
2017-03-17 14:02 ` David Woodhouse
2017-03-17 15:04 ` Mark Rutland [this message]
2017-03-17 15:33 ` Mark Rutland
2017-03-17 15:47 ` David Woodhouse
2017-03-17 16:24 ` Mark Rutland
2017-03-17 16:59 ` Marc Zyngier
2017-03-17 17:10 ` Marc Zyngier
2017-03-17 20:03 ` David Woodhouse
2017-03-21 7:34 ` AKASHI Takahiro
2017-03-21 9:42 ` David Woodhouse
2017-03-20 12:42 ` Pratyush Anand
2017-03-22 16:55 ` Goel, Sameer
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