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From: "Bhanu Prakash Gollapudi" <bprakash@broadcom.com>
To: Mike Christie <michaelc@cs.wisc.edu>
Cc: "devel@open-fcoe.org" <devel@open-fcoe.org>,
	"linux-scsi@vger.kernel.org" <linux-scsi@vger.kernel.org>
Subject: Re: [Open-FCoE] deadlock during fc_remove_host
Date: Thu, 21 Apr 2011 22:47:09 -0700	[thread overview]
Message-ID: <4DB1165D.7020106@broadcom.com> (raw)
In-Reply-To: <4DAFA2CF.2080102@cs.wisc.edu>

On 4/20/2011 8:21 PM, Mike Christie wrote:
> On 04/20/2011 09:53 PM, Mike Christie wrote:
>> Is the reason that rport b's terminate_rport_io has not been called,
>> because that workqueue is queued behind rport a's workqueue and rport
>> b's workqueue function is not called? If so, have you tested this with
>> the current upstream kernel?
>
> Oh wait, I think you also need to change the fc class to use
> alloc_workqueue instead of create_singlethread_workqueue.
>
This seem to work, except that I had to use allow_workqueue with flags 
WQ_UNBOUND and max_active set to WQ_UNBOUND_MAX_ACTIVE.  It didn't help 
With flags 0 and max_active set to 0. Test has been going on for the 
last 4 hours.  I'll let it run overnight.

Thanks,
Bhanu


  reply	other threads:[~2011-04-22  5:47 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-04-21  0:24 deadlock during fc_remove_host Bhanu Prakash Gollapudi
2011-04-21  2:53 ` Mike Christie
2011-04-21  3:21   ` [Open-FCoE] " Mike Christie
2011-04-22  5:47     ` Bhanu Prakash Gollapudi [this message]
2011-04-21  5:32   ` Bhanu Prakash Gollapudi

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