Thanks Julia, I will try it

Thanks
Feng

-----Original Message-----
From: Julia Cartwright [mailto:julia@ni.com]
Sent: Tuesday, June 27, 2017 10:28 PM
To: Feng Feng24 Liu
Cc: Sebastian Andrzej Siewior; Steven Rostedt; Mike Galbraith;
linux-kernel@vger.kernel.org; linux-rt-users@vger.kernel.org
Subject: Re: BUG: unable to handle kernel NULL pointer dereference at
0000000000000038 !//RE: kernel BUG at kernel/locking/rtmutex.c:1027

On Tue, Jun 27, 2017 at 05:47:41AM +0000, Feng Feng24 Liu wrote:

quoted

Hi, Julia
	Thanks for your kindly hit. I will try this patch
	The problem is accidental. I will try to reproduce it.
	BTW, could you help to give the link about the emails which
	discuss about " nsfs: mark dentry with DCACHE_RCUACCESS ". I
	cannot find them(just patch email)

Conversation upstream started with a syzkaller-found problem here:

  https://marc.info/?l=linux-netdev&m=149183505630266&w=2

Hopefully that helps,
  Julia