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

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Message-ID: <1517391.Uqi4c4PsRt@c203>
Date:	Wed, 13 Apr 2016 15:59:31 +0200
From:	Johannes Thumshirn <jthumshirn@...e.de>
To:	Sergey Senozhatsky <sergey.senozhatsky@...il.com>
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,
	Xiong Zhou <jencce.kernel@...il.com>
Subject: Re: [-next] BUG_ON in scsi_target_destroy()

On Mittwoch, 13. April 2016 23:47:04 CEST Sergey Senozhatsky wrote:
> 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
> 

Thanks for the update, I'll have a look into the callchain

-- 
Johannes Thumshirn                                                                                Storage
jthumshirn@...e.de                                                             +49 911 74053 689
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