Hi Will,

I see,
I will make one more test .

Thanks for your clarification .

-----Original Message-----
From: Will Deacon [mailto:will.dea...@arm.com] 
Sent: Friday, May 31, 2013 7:13 PM
To: Wang, Yalin
Cc: 'richard -rw- weinberger'; 'linux-a...@vger.kernel.org'; 
'linux-kernel@vger.kernel.org'; 'linux-arm-ker...@lists.infradead.org'
Subject: Re: A bug about system call on ARM

On Fri, May 31, 2013 at 12:02:49PM +0100, Wang, Yalin wrote:
> Hi  Will,
> 
> I have merge your code ,
> But there is a different ,
> 
> +     
> +     ct_user_exit

I thought you didn't have ct_user_exit? In which case, just delete this line.

> +#ifdef CONFIG_ALIGNMENT_TRAP
> +     ldr     ip, __cr_alignment
> +     ldr     ip, [ip]
> +     mcr     p15, 0, ip, c1, c0              @ update control register
> +#endif
> 
> +     enable_irq
> +     get_thread_info tsk

Hard to tell without context. You can take a look at my git tree if you like (I 
fixed it up based on Nico's comment):

  
https://git.kernel.org/cgit/linux/kernel/git/will/linux.git/commit/?h=misc-patches

Will
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