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List:       freebsd-hackers
Subject:    Re: iSCSI/shutdown advice needed
From:       Scott Long <scottl () samsco ! org>
Date:       2006-11-27 1:53:58
Message-ID: 456A4536.2040904 () samsco ! org
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Danny Braniss wrote:
> hi,
> 	I'm trying to finish up the iSCSI initiator,
> and need some advice. To shutdown the initiator, I
> need to:
> 	1- close down the CAM-peripherals, (ie da)
> 	2- empty up all pending iSCSI transactions
> 	3- close the tcp connection
> 2 & 3 I can handle, it's 1 that im stuck.
> Q: how can I call the peripheral close function, or is there
>    some CAM command?
>    I tried 
> 	    xpt_async(AC_LOST_DEVICE, isp->cam_path, NULL);
>    but this it far to drastic, and actually will cause panic
>    if the device is still mounted.
> 
> danny
> 

UFS doesn't handle devices going away unexpectedly.  Fixing it involves
massive changes to both UFS and the VM system.  However, sending the
AC_LOST_DEVICE is probably the right thing to do.

Scott
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