From: Jonathan Corbet <corbet@lwn.net>
To: "zhangwei(Jovi)" <jovi.zhangwei@huawei.com>
Cc: "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: Re: [ANNOUNCE] ktap 0.1 released
Date: Tue, 21 May 2013 16:19:03 -0600 [thread overview]
Message-ID: <20130521161903.333d7e74@lwn.net> (raw)
In-Reply-To: <519AF05E.1050808@huawei.com>
On Tue, 21 May 2013 11:56:14 +0800
"zhangwei(Jovi)" <jovi.zhangwei@huawei.com> wrote:
> we welcome bug reports and fixes for the issues.
I'm messing with it...first impression:
unable create tracepoint event sys_enter_mmap on cpu 4, err: -19
unable create tracepoint event sys_enter_mmap on cpu 5, err: -19
unable create tracepoint event sys_enter_mmap on cpu 6, err: -19
unable create tracepoint event sys_enter_mmap on cpu 7, err: -19
[...]
Unsurprising, this is a four-core system. The code reads:
> for_each_possible_cpu(cpu)
> enable_tracepoint_on_cpu(cpu, &attr, call, arg, type);
Maybe that needs to be for_each_online_cpu() instead?
jon
next prev parent reply other threads:[~2013-05-21 22:19 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-05-21 3:56 zhangwei(Jovi)
2013-05-21 18:13 ` Frank Ch. Eigler
2013-05-24 3:17 ` zhangwei(Jovi)
2013-05-21 22:19 ` Jonathan Corbet [this message]
2013-05-22 3:29 ` zhangwei(Jovi)
2013-05-22 4:15 ` Ming Lei
2013-05-22 4:19 ` Ming Lei
2013-05-22 4:34 ` Ming Lei
2013-05-22 7:00 ` zhangwei(Jovi)
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