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Date:      Tue, 27 Apr 2010 13:12:37 -0700
From:      Matthew Jacob <mj@feral.com>
To:        freebsd-scsi@freebsd.org
Subject:   Re: MFC of "Large set of CAM improvements" breaks I/O to Adaptec 29160 SCSI controller
Message-ID:  <4BD74535.4060503@feral.com>
In-Reply-To: <o2rff80e6381004271308l302a7173qe2dbcd4e4f038305@mail.gmail.com>
References:  <E1O6ilc-0000GP-Q3@dilbert.ticketswitch.com>	<4BD6F266.5080403@feral.com> <o2rff80e6381004271308l302a7173qe2dbcd4e4f038305@mail.gmail.com>

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On 04/27/2010 01:08 PM, Andy Farkas wrote:
> On Wed, Apr 28, 2010 at 12:19 AM, Matthew Jacob<mj@feral.com>  wrote:
>
>    
>> What do you mean by 'deadlock'?
>>      
> All disk I/O stops.
>
> eg. bonnie++ will get stuck in 'getblk' state, or rm will get stuck in
> 'biord' state.
> bufdaemon gets stuck in 'wdrain' state.
>
> The system will respond to pings but any process requiring disk access hangs.
>
> Any help is appreciated, thanks.
>
> -a
>    

Does anything time out (eventually)?




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