lkml.org 
[lkml]   [2015]   [Oct]   [15]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH v4 2/2] arm64: Expand the stack trace feature to support IRQ stack
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


\
 
 \ /
  Last update: 2015-10-15 18:21    [W:0.897 / U:0.048 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site