linux-kernel - Re: [-next] BUG_ON in scsi_target

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Date:	Wed, 13 Apr 2016 23:47:04 +0900
From:	Sergey Senozhatsky <sergey.senozhatsky@...il.com>
To:	Johannes Thumshirn <jthumshirn@...e.de>
Cc:	Sergey Senozhatsky <sergey.senozhatsky.work@...il.com>,
	"Ewan D. Milne" <emilne@...hat.com>,
	Hannes Reinecke <hare@...e.com>,
	James Bottomley <jejb@...ux.vnet.ibm.com>,
	"Martin K. Petersen" <martin.petersen@...cle.com>,
	Stephen Rothwell <sfr@...b.auug.org.au>,
	linux-scsi@...r.kernel.org, linux-kernel@...r.kernel.org,
	linux-usb@...r.kernel.org, linux-next@...r.kernel.org,
	Sergey Senozhatsky <sergey.senozhatsky@...il.com>,
	Xiong Zhou <jencce.kernel@...il.com>
Subject: Re: [-next] BUG_ON in scsi_target_destroy()

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