Re: [PATCH v4 2/2] arm64: Expand the stack trace feature to support IRQ stack

[James Morse]

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
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