linux-kernel - Re: [PATCH] event: fix TP_printk() argument in sched

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Message-ID: <4EB29E9C.1010004@gmail.com>
Date:	Thu, 03 Nov 2011 08:01:00 -0600
From:	David Ahern <dsahern@...il.com>
To:	avagin@...il.com
CC:	Steven Rostedt <rostedt@...dmis.org>,
	Andrew Vagin <avagin@...nvz.org>, linux-kernel@...r.kernel.org,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Ingo Molnar <mingo@...hat.com>,
	Frederic Weisbecker <fweisbec@...il.com>, devel@...nvz.org,
	Arnaldo Carvalho de Melo <acme@...radead.org>
Subject: Re: [PATCH] event: fix TP_printk() argument in sched_switch

On 11/03/2011 06:57 AM, Andrew Vagin wrote:
> 
>> NACK!
>>
>> This is a perf userspace bug, not a kernel one. Please fix the userspace
>> tool instead.
>>
>> Note, the new version of libparsevent handles this case without issue.
>> Perf just needs to be updated.
> I don't understand. I've got
> git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/trace-cmd.git
> and it reports the same error. Where am I wrong?

Have you installed the plugins?

David

> 
> # ./trace-cmd report 2> log
> 
> <idle>-0     [001] 1516333.292126: sched_switch:         [FAILED TO
> PARSE] prev_comm=kworker/0:0 prev_pid=0 prev_prio=120 prev_state=0x0
> next_comm=trace-cmd next_pid=2900 next_prio=120
> 
> # cat log
> trace-cmd: No such file or directory
>   Error: expected type 5 but read 4
>   Error: expected type 4 but read 0
>   failed to read event print fmt for sched_switch
> trace-cmd: Received SIGINT
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