On Wed, 30 Aug 2017 13:02:22 +0530 Prakash Gupta <gup...@codeaurora.org> wrote:
> The stacktraces always begin as follows:
>
> [<c00117b4>] save_stack_trace_tsk+0x0/0x98
> [<c0011870>] save_stack_trace+0x24/0x28
> ...
>
> This is because the stack trace code includes the stack frames for itself.
> This is incorrect behaviour, and also leads to "skip" doing the wrong thing
> (which is the number of stack frames to avoid recording.)
>
> Perversely, it does the right thing when passed a non-current thread. Fix
> this by ensuring that we have a known constant number of frames above the
> main stack trace function, and always skip these.
>
> This was fixed for arch arm by Commit 3683f44c42e9 ("ARM: stacktrace: avoid
> listing stacktrace functions in stacktrace")
I can take this (with acks, please?)
3683f44c42e9 has a cc:stable but your patch does not. Should it?
