linux-kernel - RE: mpt2sas driver barfs when force removing a drive on 3.13.1

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Date:	Wed, 12 Feb 2014 11:43:58 +0000
From:	"Reddy, Sreekanth" <Sreekanth.Reddy@....com>
To:	Joe Lawrence <joe.lawrence@...atus.com>,
	"prometheanfire@...too.org" <prometheanfire@...too.org>
CC:	"Nandigama, Nagalakshmi" <Nagalakshmi.Nandigama@....com>,
	Support <support@....com>,
	DL-MPT Fusion Linux <DL-MPTFusionLinux@....com>,
	"linux-scsi@...r.kernel.org" <linux-scsi@...r.kernel.org>,
	"JBottomley@...allels.com" <JBottomley@...allels.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"kernel@...too.org" <kernel@...too.org>
Subject: RE: mpt2sas driver barfs when force removing a drive on 3.13.1

Hi Joe,

May I known the status of this patch having subject
"[PATCH] scsi_transport_sas: move bsg destructor into sas_rphy_remove".

I need the status of this patch as I am also observing the same WARNING call trace on latest 3.14.0-rc2+ kernel whenever we unload the mpt2sas/mpt3sas driver or whenever we unplug the drive attached to the HBA.
But after applying yours patch, these WARNING call trace is not observed.

Regards,
Sreekanth

>-----Original Message-----
>From: Joe Lawrence [mailto:joe.lawrence@...atus.com]
>Sent: Monday, February 03, 2014 7:54 PM
>To: prometheanfire@...too.org
>Cc: Nandigama, Nagalakshmi; Reddy, Sreekanth; Support; DL-MPT Fusion
>Linux; linux-scsi@...r.kernel.org; JBottomley@...allels.com; linux-
>kernel@...r.kernel.org; kernel@...too.org
>Subject: Re: mpt2sas driver barfs when force removing a drive on 3.13.1
>
>On Fri, 31 Jan 2014 20:49:39 -0600
>Matthew Thode <prometheanfire@...too.org> wrote:
>
>> I decided to pull a drive while it was in use out of laziness (it was
>> open via luks, but not in actual use).  Got a fun trace as a result.
>> Just thought you'd like to know :D
>>
>
>Hi Matthew,
>
>The first trace looks a lot like what I see on mpt2sas driver removal [1].  I
>posted a suggested fix back in Dec [2], which you might try, however it is not
>reviewed at this point.
>
>[1] http://thread.gmane.org/gmane.linux.scsi/86237
>[2] https://github.com/joe-
>lawrence/linux/compare/scsi_transport_sas_sysfs_warning.patch
>
>Regards,
>
>-- Joe


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