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Date:	Sat, 28 Mar 2015 17:02:50 +0100
From:	Christian Franke <Christian DOT Franke AT t-online DOT de>
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To:	cygwin AT cygwin DOT com
Subject:	Re: Recent x86_64 update broke administrator use of smartctl.exe
References:	<5515FB35 DOT 9020709 AT abattoir DOT com>
In-Reply-To:	<5515FB35.9020709@abattoir.com>
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banshee wrote:
> I have two windows 7 x64 boxes, one running cygwin x86 and the other 
> x86_64.  I run smartctl on both boxes. One can run smartctl as 
> administrator or not, but it produces a fuller information set with 
> admin rights.  A recent change to the x86_64 cygwin has broken 
> administrator use of smartctl as detailed below.  It still runs fine 
> on the x86 cygwin.
>
> I'm not certain which version of cygwin broke the functionality, but 
> it was working last week.
>

Any driver updates performed since then?
Do both machines have similar SATA controllers and drivers?

> ...
> x86_64 running as ADMIN fails to run smartctl
> $ /usr/sbin/smartctl.exe -a /dev/sda
> smartctl 6.3 2014-07-26 r3976 [x86_64-unknown-cygwin-win7-sp1] 
> (cygwin-6.3-1)
> Copyright (C) 2002-14, Bruce Allen, Christian Franke, 
> www.smartmontools.org
>
> Read Device Identity failed: Input/output error
>

Could not reproduce this.

The Windows IO-controls IOCTL_ATA_PASS_THROUGH or SMART_RCV_DRIVE_DATA 
possibly return some unexpected error code. This is typically a SATA 
driver issue. The output of "smartctl -r ioctl,2 -i /dev/sda" should 
provide more details.

Could you possibly repeat the above test this with the "native" 
(non-Cygwin) Windows version of smartctl?

This is likely not a Cygwin specific issue. Smartctl does not use any 
Cygwin functionality to do ATA/SCSI pass-through access. Cygwin and 
native version of smartctl share the same code. We could continue the 
discussion by private mail or on smartmontools-support mailing list if 
desired.

Christian


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