linux-kernel - Re: [PATCH] perf tools: ensure comm properly terminated If threads in a multi-threaded process have names shorter than the main thread the comm for the named threads is not properly terminated.

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Message-ID: <20120224193958.GE27882@infradead.org>
Date:	Fri, 24 Feb 2012 17:39:58 -0200
From:	Arnaldo Carvalho de Melo <acme@...stprotocols.net>
To:	David Ahern <dsahern@...il.com>
Cc:	linux-kernel@...r.kernel.org, mingo@...e.hu, peterz@...radead.org,
	fweisbec@...il.com, paulus@...ba.org, tglx@...utronix.de
Subject: Re: [PATCH] perf tools: ensure comm properly terminated If threads
 in a multi-threaded process have names shorter than the main thread the comm
 for the named threads is not properly terminated.

Em Fri, Feb 24, 2012 at 12:31:38PM -0700, David Ahern escreveu:
> e.g., for the process 'namedthreads' where each thread is named noploop%d
> where %d is the thread number:
> 
> Before:
>     perf script -f comm,tid,ip,sym,dso
>     noploop:4ads 21616  400a49 noploop (/tmp/namedthreads)
> The 'ads' in the thread comm bleeds over from the process name.
> 
> After:
>     perf script -f comm,tid,ip,sym,dso
>        noploop:4 21616  400a49 noploop (/tmp/namedthreads)

Thanks, applied to perf/urgent.

- Arnaldo
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