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From: Fengguang Wu <fengguang.wu@gmail.com>
To: Daniel Walker <dwalker@mvista.com>
Cc: Hua Zhong <hzhong@gmail.com>, Andrew Morton <akpm@osdl.org>,
	LKML <linux-kernel@vger.kernel.org>,
	mingo@elte.hu, johnstul@us.ibm.com
Subject: Re: [BUG 2.6.20-rc2-mm1] init segfaults when CONFIG_PROFILE_LIKELY=y
Date: Mon, 1 Jan 2007 10:40:29 +0800	[thread overview]
Message-ID: <367619213.19897@ustc.edu.cn> (raw)
Message-ID: <20070101024029.GA6249@mail.ustc.edu.cn> (raw)
In-Reply-To: <1167594309.14081.79.camel@imap.mvista.com>

On Sun, Dec 31, 2006 at 11:45:09AM -0800, Daniel Walker wrote:
> On Sun, 2006-12-31 at 23:04 +0800, Fengguang Wu wrote:
> > Hi,
> > 
> > The following messages keeps popping up when CONFIG_PROFILE_LIKELY=y:
> > 
> > init[1]: segfault at ffffffff8118c110 rip ffffffff8118c110 rsp 00007fff9a9d14d8 error 15
> > init[1]: segfault at ffffffff8118c110 rip ffffffff8118c110 rsp 00007fff9a9d14d8 error 15
> > init[1]: segfault at ffffffff8118c110 rip ffffffff8118c110 rsp 00007fff9a9d14d8 error 15
> > init[1]: segfault at ffffffff8118c110 rip ffffffff8118c110 rsp 00007fff9a9d14d8 error 15
> > init[1]: segfault at ffffffff8118c110 rip ffffffff8118c110 rsp 00007fff9a9d14d8 error 15
> > init[1]: segfault at ffffffff8118c110 rip ffffffff8118c110 rsp 00007fff9a9d14d8 error 15
> > init[1]: segfault at ffffffff8118c110 rip ffffffff8118c110 rsp 00007fff9a9d14d8 error 15
> > init[1]: segfault at ffffffff8118c110 rip ffffffff8118c110 rsp 00007fff9a9d14d8 error 15
> > 
> 
> 
> Does this seem like an appropriate solution? This just reconstitutes
> Ingo's patch by removing the unlikely calls that got added recently. 
> 
> Maybe a comment into vsyscall.c that says to stay away from all macro's
> and possible debug code that could be added might be helpful ?
> 
> Signed-Off-By: Daniel Walker <dwalker@mvista.com>

Thanks, it worked!


  parent reply	other threads:[~2007-01-01  2:42 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2006-12-31 15:04 [BUG 2.6.20-rc2-mm1] init segfaults when CONFIG_PROFILE_LIKELY=y Fengguang Wu
2006-12-31 15:04 ` Fengguang Wu
2006-12-31 19:45 ` Daniel Walker
2006-12-31 20:43   ` Randy Dunlap
2006-12-31 21:11     ` Daniel Walker
2006-12-31 23:12       ` Randy Dunlap
2007-01-01  2:40   ` Fengguang Wu [this message]
2007-01-01  2:40     ` Fengguang Wu
2007-01-02 19:47   ` john stultz

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