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Date: Wed, 13 Apr 2016 23:47:04 +0900
From: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
To: Johannes Thumshirn <jthumshirn@suse.de>
Cc: Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com>,
        "Ewan D. Milne" <emilne@redhat.com>, Hannes Reinecke <hare@suse.com>,
        James Bottomley <jejb@linux.vnet.ibm.com>,
        "Martin K. Petersen" <martin.petersen@oracle.com>,
        Stephen Rothwell <sfr@canb.auug.org.au>, linux-scsi@vger.kernel.org,
        linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org,
        linux-next@vger.kernel.org,
        Sergey Senozhatsky <sergey.senozhatsky@gmail.com>,
        Xiong Zhou <jencce.kernel@gmail.com>
Subject: Re: [-next] BUG_ON in scsi_target_destroy()
Message-ID: <20160413144704.GA490@swordfish>
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Hi,

On (04/13/16 10:41), Johannes Thumshirn wrote:
> Hi Sergey,  Xiong,
> 
> Can you try below patch?

it panics my system.
first it warn_on-s in lib/kobject.c:244

then NULL dereferences
do_scan_async
 __scsi_remove_device
  scsi_target_reap
   device_del
    dpm_sysfs_remove
     sysfs_unmerge_group
      kernfs_find_and_get_ns
       kernfs_find_ns

	-ss