From: Namhyung Kim <namhyung.kim@lge.com>
To: Hank <hankendi@gmail.com>
Cc: linux-perf-users@vger.kernel.org
Subject: Re: using perf lock
Date: Thu, 24 May 2012 09:28:09 +0900 [thread overview]
Message-ID: <87fwaq1kyu.fsf@sejong.aot.lge.com> (raw)
In-Reply-To: <loom.20120523T174059-193@post.gmane.org> (Hank's message of "Wed, 23 May 2012 15:42:42 +0000 (UTC)")
Hi,
On Wed, 23 May 2012 15:42:42 +0000 (UTC), Hank wrote:
> I've been trying to use perf lock command on my Ubuntu 12.04, but I'm getting
> this error:
>
> invalid or unsupported event: 'lock:lock_acquire'
>
> What might be the problem? Should I get the kernel source code?
>
Maybe due to the kernel was built without CONFIG_LOCKDEP and/or
CONFIG_LOCK_STAT. You can grep it from /boot/config-$(uname -r).
If so, you need to rebuild the kernel.
Thanks,
Namhyung
prev parent reply other threads:[~2012-05-24 0:30 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-05-23 15:42 using perf lock Hank
2012-05-24 0:28 ` Namhyung Kim [this message]
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=87fwaq1kyu.fsf@sejong.aot.lge.com \
--to=namhyung.kim@lge.com \
--cc=hankendi@gmail.com \
--cc=linux-perf-users@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).