From: james.morse@arm.com (James Morse)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v4 2/2] arm64: Expand the stack trace feature to support IRQ stack
Date: Thu, 15 Oct 2015 17:01:14 +0100 [thread overview]
Message-ID: <561FCDCA.1080804@arm.com> (raw)
In-Reply-To: <179A25A2-C346-46C0-93D1-BABD4B6CB401@gmail.com>
On 15/10/15 15:24, Jungseok Lee wrote:
> On Oct 9, 2015, at 11:24 PM, James Morse wrote:
>> I think unwind_frame() needs to walk the irq stack too. [2] is an example
>> of perf tracing back to userspace, (and there are patches on the list to
>> do/fix this), so we need to walk back to the start of the first stack for
>> the perf accounting to be correct.
>
> I plan to do re-spin this series without [PATCH 2/2] since 1) Akashi's
> approach looks better than mine and 2) you have the perf patches for [2].
They aren't my patches - the ones I saw on the list were for arm:
https://lkml.org/lkml/2015/10/1/769 - its evidently something perf
supports, so we shouldn't make it worse...
Thanks!
James
next prev parent reply other threads:[~2015-10-15 16:01 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-10-07 15:28 [PATCH v4 0/2] arm64: Introduce IRQ stack Jungseok Lee
2015-10-07 15:28 ` [PATCH v4 1/2] " Jungseok Lee
2015-10-08 10:25 ` Pratyush Anand
2015-10-08 14:32 ` Jungseok Lee
2015-10-08 16:51 ` Pratyush Anand
2015-10-07 15:28 ` [PATCH v4 2/2] arm64: Expand the stack trace feature to support " Jungseok Lee
2015-10-09 14:24 ` James Morse
2015-10-12 14:53 ` Jungseok Lee
2015-10-12 16:34 ` James Morse
2015-10-12 22:13 ` Jungseok Lee
2015-10-13 11:00 ` James Morse
2015-10-13 15:00 ` Jungseok Lee
2015-10-14 12:12 ` Jungseok Lee
2015-10-15 15:59 ` James Morse
2015-10-16 13:01 ` Jungseok Lee
2015-10-16 16:06 ` Catalin Marinas
2015-10-17 13:38 ` Jungseok Lee
2015-10-19 16:18 ` Catalin Marinas
2015-10-20 13:08 ` Jungseok Lee
2015-10-21 15:14 ` Jungseok Lee
2015-10-14 7:13 ` AKASHI Takahiro
2015-10-14 12:24 ` Jungseok Lee
2015-10-14 12:55 ` Jungseok Lee
2015-10-15 4:19 ` AKASHI Takahiro
2015-10-15 13:39 ` Jungseok Lee
2015-10-19 6:47 ` AKASHI Takahiro
2015-10-20 13:19 ` Jungseok Lee
2015-10-15 14:24 ` Jungseok Lee
2015-10-15 16:01 ` James Morse [this message]
2015-10-16 13:02 ` Jungseok Lee
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