linux-kernel - Re: [BUG] Linux 2.6.25-rc2 - Regression from 2.6.24-rc1-git1 softlockup while bootup on powerpc

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Message-Id: <20080219180723.e742a582.kamezawa.hiroyu@jp.fujitsu.com>
Date:	Tue, 19 Feb 2008 18:07:23 +0900
From:	KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>
To:	Jens Axboe <jens.axboe@...cle.com>
Cc:	Kamalesh Babulal <kamalesh@...ux.vnet.ibm.com>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	linuxppc-dev@...abs.org, Ingo Molnar <mingo@...e.hu>,
	Srivatsa Vaddagiri <vatsa@...ux.vnet.ibm.com>,
	Dhaval Giani <dhaval@...ux.vnet.ibm.com>,
	Andy Whitcroft <apw@...dowen.org>,
	Balbir Singh <balbir@...ux.vnet.ibm.com>
Subject: Re: [BUG] Linux 2.6.25-rc2 - Regression from 2.6.24-rc1-git1  
 softlockup  while bootup on powerpc

On Tue, 19 Feb 2008 09:58:38 +0100
Jens Axboe <jens.axboe@...cle.com> wrote:
> > when I inserted printk here
> > ==
> > 	for (i = 0; i < nr; i++)
> > 		func(ioc, cics[i]);
> > 	printk("%d %lx\n", nr, index);
> > ==
> > index was always "1" and  nr was always 32.
> > 
> > So, cics[31]->key was always NULL when index=1 is passed to
> > radix_tree_gang_lookup().
> 
> Hang on, it returned 32? It should not return more than 16, since that
> is what we have room for and asked for. 
sorry. Of course, it was 16 ;(

your patch works well. thank you.

-Kame

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