Messages in this thread | | | Date | Thu, 15 Oct 2015 17:01:14 +0100 | From | James Morse <> | Subject | Re: [PATCH v4 2/2] arm64: Expand the stack trace feature to support IRQ stack |
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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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