Re: kern/55189: NVMe SSD reports unsafe shutdowns

[Paul Goyette <paul%whooppee.com@localhost>]

The following reply was made to PR kern/55189; it has been noted by GNATS.

From: Paul Goyette <paul%whooppee.com@localhost>
To: gnats-bugs%netbsd.org@localhost
Cc: kern-bug-people%netbsd.org@localhost, gnats-admin%netbsd.org@localhost, netbsd-bugs%netbsd.org@localhost
Subject: Re: kern/55189: NVMe SSD reports unsafe shutdowns
Date: Mon, 20 Apr 2020 10:16:03 -0700 (PDT)

 >  sudo smartctl -d nvme,0x1 -a /dev/nvme0
 >
 > The output was mostly as expected, but one item stood out:
 >
 >  Unsafe Shutdowns:                   68
 >
 > This is only two less than the reported number of power cycles,
 > and appears to increase by one for each power cycle, even after
 > applying the patch from PR 54969.  The machine is typically
 > powered off by running "halt -p".
 
 I've got similar results on my "Samsung SSD 960 PRO 512GB":
 
     ...
     Power Cycles:                       32
     Power On Hours:                     16,890
     Unsafe Shutdowns:                   30
     ...
 
 
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