From: James Bottomley <jejb@linux.vnet.ibm.com>
To: Bart Van Assche <bart.vanassche@sandisk.com>,
Kevin Groeneveld <KGroeneveld@lenbrook.com>,
Wei Fang <fangwei1@huawei.com>, "tj@kernel.org" <tj@kernel.org>,
"martin.petersen@oracle.com" <martin.petersen@oracle.com>,
"corbet@lwn.net" <corbet@lwn.net>
Cc: "hch@infradead.org" <hch@infradead.org>,
"dan.j.williams@intel.com" <dan.j.williams@intel.com>,
"linux-ide@vger.kernel.org" <linux-ide@vger.kernel.org>,
"linux-scsi@vger.kernel.org" <linux-scsi@vger.kernel.org>,
"linux-doc@vger.kernel.org" <linux-doc@vger.kernel.org>
Subject: Re: [PATCH v2 1/2] scsi: fix race between simultaneous decrements of ->host_failed
Date: Wed, 01 Jun 2016 11:38:54 -0400 [thread overview]
Message-ID: <1464795534.23285.4.camel@linux.vnet.ibm.com> (raw)
In-Reply-To: <38efc40d-fec9-3278-abb8-2a78c4146a8c@sandisk.com>
On Wed, 2016-06-01 at 08:29 -0700, Bart Van Assche wrote:
> On 06/01/2016 07:36 AM, Kevin Groeneveld wrote:
> > > Subject: [PATCH v2 1/2] scsi: fix race between simultaneous
> > > decrements of ->host_failed
> >
> > I wonder if this could be related to
> > http://www.spinics.net/lists/linux-scsi/msg86808.html?
> >
> > I never did get to the bottom of that. If I have time I hope to
> > retest my scsi hang issue with this patch.
>
> I've never seen that hang with the ib_srp driver (which is a SCSI
> LLD). That probably means that the SATA code uses the SCSI error
> handler in another way than other SCSI LLDs.
It's the ata_sas error handler, which is split between libsas and
libata. It does one thread of execution per ata port when the strategy
handler is invoked. This behaviour is pretty much unique at the
moment.
James
next prev parent reply other threads:[~2016-06-01 15:38 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-05-31 8:38 [PATCH v2 1/2] scsi: fix race between simultaneous decrements of ->host_failed Wei Fang
2016-05-31 8:38 ` [PATCH v2 2/2] Documentation/scsi: update scsi_eh.txt about ->host_failed Wei Fang
2016-05-31 14:33 ` [PATCH v2 1/2] scsi: fix race between simultaneous decrements of ->host_failed Tejun Heo
2016-06-01 1:20 ` Wei Fang
2016-06-01 3:21 ` Dan Williams
2016-06-01 3:30 ` Dan Williams
2016-06-01 14:06 ` James Bottomley
2016-06-02 1:58 ` Wei Fang
2016-06-01 14:36 ` Kevin Groeneveld
2016-06-01 15:29 ` Bart Van Assche
2016-06-01 15:38 ` James Bottomley [this message]
2016-06-02 2:37 ` Wei Fang
2016-06-02 3:09 ` Wei Fang
2016-06-06 12:48 ` Kevin Groeneveld
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