linux-kernel - Re: [PATCH 1/2] tools lib traceevent: Print event name when show warning if possible

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Date:	Fri, 21 Mar 2014 11:22:49 -0400
From:	Steven Rostedt <rostedt@...dmis.org>
To:	Namhyung Kim <namhyung@...nel.org>
Cc:	Arnaldo Carvalho de Melo <acme@...stprotocols.net>,
	Frederic Weisbecker <fweisbec@...il.com>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Ingo Molnar <mingo@...nel.org>,
	Namhyung Kim <namhyung.kim@....com>,
	LKML <linux-kernel@...r.kernel.org>,
	Jiri Olsa <jolsa@...hat.com>,
	Ramkumar Ramachandra <artagnon@...il.com>
Subject: Re: [PATCH 1/2] tools lib traceevent: Print event name when show
 warning if possible

On Wed, 19 Mar 2014 10:22:53 +0900
Namhyung Kim <namhyung@...nel.org> wrote:

> It's sometimes useful to know where the parse failure was occurred.
> Add do_warning_event() macro to see the failing event.
> 
> It now shows the messages like below:
> 
>   $ perf test 5
>    5: parse events tests                                     :  Warning: [kvmmmu:kvm_mmu_get_page] bad op token {
>     Warning: [kvmmmu:kvm_mmu_sync_page] bad op token {
>     Warning: [kvmmmu:kvm_mmu_unsync_page] bad op token {
>     Warning: [kvmmmu:kvm_mmu_prepare_zap_page] bad op token {
>     Warning: [kvmmmu:fast_page_fault] function is_writable_pte not defined
>     Warning: [xen:xen_mmu_ptep_modify_prot_commit] function sizeof not defined
>     Warning: [xen:xen_mmu_ptep_modify_prot_start] function sizeof not defined
>     Warning: [xen:xen_mmu_set_pgd] function sizeof not defined
>     Warning: [xen:xen_mmu_set_pud] function sizeof not defined
>     Warning: [xen:xen_mmu_set_pmd] function sizeof not defined

Nice feature.

Acked-by: Steven Rostedt <rostedt@...dmis.org>

-- Steve

>     ...
> 
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