Re: kern/49457: 'atactl sleep' loses drive

[Manuel Bouyer <bouyer%antioche.eu.org@localhost>]

The following reply was made to PR kern/49457; it has been noted by GNATS.

From: Manuel Bouyer <bouyer%antioche.eu.org@localhost>
To: gnats-bugs%NetBSD.org@localhost
Cc: kern-bug-people%NetBSD.org@localhost, gnats-admin%NetBSD.org@localhost, netbsd-bugs%NetBSD.org@localhost,
        Hauke Fath <hauke%Espresso.Rhein-Neckar.DE@localhost>
Subject: Re: kern/49457: 'atactl sleep' loses drive
Date: Tue, 9 Dec 2014 11:06:53 +0100

 On Mon, Dec 08, 2014 at 09:20:00PM +0000, Hauke Fath wrote:
 > The following reply was made to PR kern/49457; it has been noted by GNATS.
 > 
 > From: Hauke Fath <hauke%Espresso.Rhein-Neckar.DE@localhost>
 > To: gnats-bugs%NetBSD.org@localhost
 > Cc: kern-bug-people%NetBSD.org@localhost, gnats-admin%NetBSD.org@localhost
 > Subject: Re: kern/49457: 'atactl sleep' loses drive
 > Date: Mon, 8 Dec 2014 21:59:03 +0100
 > 
 >  On Mon,  8 Dec 2014 17:25:00 +0000 (UTC), Manuel Bouyer wrote:
 >  > tested on a netbsd-7 host with ahcisata controller here:
 >  >  yquem# atactl wd0 checkpower
 >  >  Current power status: Active mode
 >  >  yquem# atactl wd0 sleep
 >  >  yquem# atactl wd0 checkpower
 >  >  ATA command timed out
 >  >  [this is expected, a drive in sleep doesn't reply to any ATA command - only
 >  >  a reset will wake it up]
 >  >  yquem# disklabel -r wd0
 >  >  [several seconds delay, I can hear the drive spin up]
 >  >  # /dev/rwd0d:
 >  >  type: unknown
 >  >  disk: ST500DM002-1BD1
 >  >  label: 
 >  >  [...]
 >  
 >  For the same procedure, I get
 >  
 >  [hauke@pizza] ~ # atactl wd1 checkpower
 >  Current power status: Active mode
 >  [hauke@pizza] ~ # atactl wd1 sleep
 >  [hauke@pizza] ~ # atactl wd1 checkpower
 >  atactl: wd1: Input/output error
 >  [hauke@pizza] ~ # disklabel -r wd1
 >  disklabel: /dev/rwd1d: Input/output error
 >  [hauke@pizza] ~ # 
 >  
 >  and dmesg says
 >  
 >  [...]
 >  wd1: wd_flushcache: status=0x5128<TIMEOU>
 >  wd1: IDENTIFY failed
 >  wd1: IDENTIFY failed
 >  
 >  I remember the "device timeout" line you quoted from netbsd-6, but have 
 >  not seen them on netbsd-7.
 
 Still not sure why the wd_flushcache() is there.
 What command above triggers which message ?
 
 -- 
 Manuel Bouyer <bouyer%antioche.eu.org@localhost>
      NetBSD: 26 ans d'experience feront toujours la difference
 --