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    SubjectRe: [RFC PATCH 1/6] trace/stack: Move code to save the stack trace into a separate function
    On Wed, 02 Jun 2021 16:05:18 +0530
    "Naveen N. Rao" <naveen.n.rao@linux.vnet.ibm.com> wrote:

    > It seems to be working fine otherwise. The one limitation though is down
    > to how ftrace works on powerpc -- the mcount call is before a function
    > sets up its own stackframe. Due to this, we won't ever be able to
    > account for the stackframe from a leaf function -- but, that's a fairly
    > minor limitation.

    And this is true for x86 as well because it no longer uses mcount, but
    uses fentry instead (called before stack setup), but I figured there's
    not much we could do about it.

    -- Steve

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