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RE: BUG: unable to handle kernel NULL pointer dereference at 0000000000000038 !//RE: kernel BUG at kernel/locking/rtmutex.c:1027

From Feng Feng24 Liu <liufeng24@lenovo.com>
Newsgroups linux.kernel
Subject RE: BUG: unable to handle kernel NULL pointer dereference at 0000000000000038 !//RE: kernel BUG at kernel/locking/rtmutex.c:1027
Date 2017-06-29 05:20 +0200
Message-ID <tXy9P-2dP-7@gated-at.bofh.it> (permalink)
References (1 earlier) <tWDbA-3sV-9@gated-at.bofh.it> <tWDEC-3EY-35@gated-at.bofh.it> <tWEAG-4e5-15@gated-at.bofh.it> <tWRHA-4zw-11@gated-at.bofh.it> <tWZF7-1JQ-17@gated-at.bofh.it>
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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:
>> 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

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BUG: unable to handle kernel NULL pointer dereference at  0000000000000038 !//RE: kernel BUG at kernel/locking/rtmutex.c:1027 Feng Feng24 Liu <liufeng24@lenovo.com> - 2017-06-26 08:40 +0200
  Re: BUG: unable to handle kernel NULL pointer dereference at  0000000000000038 !//RE: kernel BUG at kernel/locking/rtmutex.c:1027 Steven Rostedt <rostedt@goodmis.org> - 2017-06-26 16:30 +0200
    Re: BUG: unable to handle kernel NULL pointer dereference at  0000000000000038 !//RE: kernel BUG at kernel/locking/rtmutex.c:1027 Sebastian Andrzej Siewior <sebastian.siewior@linutronix.de> - 2017-06-26 17:00 +0200
      Re: BUG: unable to handle kernel NULL pointer dereference at  0000000000000038 !//RE: kernel BUG at kernel/locking/rtmutex.c:1027 Julia Cartwright <julia@ni.com> - 2017-06-26 18:00 +0200
        RE: BUG: unable to handle kernel NULL pointer dereference at  0000000000000038 !//RE: kernel BUG at kernel/locking/rtmutex.c:1027 Feng Feng24 Liu <liufeng24@lenovo.com> - 2017-06-27 08:00 +0200
          Re: BUG: unable to handle kernel NULL pointer dereference at  0000000000000038 !//RE: kernel BUG at kernel/locking/rtmutex.c:1027 Julia Cartwright <julia@ni.com> - 2017-06-27 16:30 +0200
            RE: BUG: unable to handle kernel NULL pointer dereference at  0000000000000038 !//RE: kernel BUG at kernel/locking/rtmutex.c:1027 Feng Feng24 Liu <liufeng24@lenovo.com> - 2017-06-29 05:20 +0200
      RE: BUG: unable to handle kernel NULL pointer dereference at  0000000000000038 !//RE: kernel BUG at kernel/locking/rtmutex.c:1027 Feng Feng24 Liu <liufeng24@lenovo.com> - 2017-06-27 07:00 +0200
    RE: BUG: unable to handle kernel NULL pointer dereference at  0000000000000038 !//RE: kernel BUG at kernel/locking/rtmutex.c:1027 Feng Feng24 Liu <liufeng24@lenovo.com> - 2017-06-27 07:00 +0200

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