linux-kernel - Re: [PATCH] oprofile: check whether oprofile perf enabled in op_overflow

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Message-ID: <20140217100827.GA26312@mudshark.cambridge.arm.com>
Date:	Mon, 17 Feb 2014 10:08:27 +0000
From:	Will Deacon <will.deacon@....com>
To:	Weng Meiling <wengmeiling.weng@...wei.com>
Cc:	Robert Richter <rric@...nel.org>,
	"oprofile-list@...ts.sf.net" <oprofile-list@...ts.sf.net>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Li Zefan <lizefan@...wei.com>,
	"wangnan0@...wei.com" <wangnan0@...wei.com>,
	"zhangwei(Jovi)" <jovi.zhangwei@...wei.com>,
	Huang Qiang <h.huangqiang@...wei.com>,
	"sdu.liu@...wei.com" <sdu.liu@...wei.com>
Subject: Re: [PATCH] oprofile: check whether oprofile perf enabled in
 op_overflow_handler()

On Sat, Feb 15, 2014 at 02:41:09AM +0000, Weng Meiling wrote:
> Hi Will,
> 
>  I test kernel with this patch, the problem has be fixed. When the
>  event's sample_period is small, the cpu will not stall except printing
>  warning "oprofile: ignoring spurious overflow ignoring spurious overflow".
>  This is normal for unregistered event.
> 
>  So would you please send a formal one? :) Thanks very much!

It's already in -next.

Will
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