linux-kernel - Re: [PATCH 0/6] tracing: trace event error

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Date:   Wed, 16 Jan 2019 09:42:35 -0600
From:   Tom Zanussi <tom.zanussi@...ux.intel.com>
To:     Steven Rostedt <rostedt@...dmis.org>
Cc:     tglx@...utronix.de, mhiramat@...nel.org, namhyung@...nel.org,
        vedang.patel@...el.com, bigeasy@...utronix.de,
        joel.opensrc@...il.com, joelaf@...gle.com,
        mathieu.desnoyers@...icios.com, baohong.liu@...el.com,
        rajvi.jingar@...el.com, julia@...com, fengguang.wu@...el.com,
        linux-kernel@...r.kernel.org, linux-rt-users@...r.kernel.org
Subject: Re: [PATCH 0/6] tracing: trace event error_log and inter-event
 bugfixes

Hi Steve,

On Tue, 2019-01-15 at 22:31 -0500, Steven Rostedt wrote:
> Hi Tom,
> 
> This thread sorta died and appears to be forgotten. Is there follow
> up
> patches on this?
> 

No, there wasn't a followup v2 for this - the last suggestion was that
we'd discuss this face-to-face at Plumbers, but I didn't get to go to
Plumbers...

Anyway, there were some good suggestions in the thread - let me spin up
a v2 that incorporates them, and we can go from there.

Tom

> Thanks!
> 
> -- Steve
> 
> 
> On Thu, 12 Apr 2018 10:13:15 -0500
> Tom Zanussi <tom.zanussi@...ux.intel.com> wrote:
> 
> > Hi Steve,
> > 
> > Here are a few patches that should be applied on top of the
> > 'Inter-event (e.g. latency) support v9' patchset.
> > 
> > The first fixes another problem I noticed when printing flags.
> > 
> > The rest implement the tracing/events/error_log suggested by
> > Masami,
> > and update the inter-event code to use it (and remove the old hist
> > file error mechanism).
> > 
> > Thanks,
> > 
> > Tom
> > 
> > The following changes since commit
> > 404bb11b24fb9a592023c077b878d30ad6da4322:
> > 
> >   tracing: Enforce passing in filter=NULL to create_filter() (2018-
> > 04-11 11:18:42 -0400)
> > 
> > are available in the git repository at:
> > 
> >   https://github.com/tzanussi/linux-trace-inter-event.git
> > tzanussi/inter-event-update2
> >   
> > https://github.com/tzanussi/linux-trace-inter-event/tree/tzanussi/inter-event-update2
> > 
> > Tom Zanussi (6):
> >   tracing: Restore proper field flag printing when displaying
> > triggers
> >   tracing: Add trace event error log
> >   tracing: Save the last hist command's associated event name
> >   tracing: Use trace event error_log with hist triggers
> >   tracing: Add field parsing trace event errors for hist triggers
> >   selftests: ftrace: Fix extended error support testcase
> > 
> >  kernel/trace/trace.h                               |   3 +
> >  kernel/trace/trace_events.c                        | 172
> > +++++++++++++++++++
> >  kernel/trace/trace_events_hist.c                   | 188
> > +++++++++++----------
> >  .../inter-event/trigger-extended-error-support.tc  |   2 +-
> >  4 files changed, 274 insertions(+), 91 deletions(-)
> > 
> 
>