From: Robert Hancock <hancockr@shaw.ca>
To: Tejun Heo <htejun@gmail.com>,
linux-kernel <linux-kernel@vger.kernel.org>
Cc: Mark Lord <liml@rtr.ca>
Subject: Re: Loud "pop" coming from hard drive on reboot
Date: Wed, 18 Apr 2007 17:00:19 -0600 [thread overview]
Message-ID: <4626A303.80208@shaw.ca> (raw)
In-Reply-To: <fa.jDn5j5GVDwXXnVYH74vVT3m+Gq8@ifi.uio.no>
Tejun Heo wrote:
> This really isn't a regression. It's been always like that with libata.
> libata doesn't make devices go into standby mode and shutdown(8) does
> it for libata. The problem here is that libata does issue
> SYNCHRONIZE_CACHE on shutdown. So, the sequence of event is...
>
> 1. shutdown(8) issues SYNCHRONIZE_CACHE followed by STANDBY_NOW
This part is presumably distribution dependent. I have never seen Fedora
or CentOS shut down drives on power down from the shutdown script/utility..
> 2. kernel shutdown starts
> 3. libata shutdown issues SYNCHRONIZE_CACHE
> 4. power goes off
>
> Some drives seem to spin up at step #3 even when its cache is clean and
> power goes off right after the disk finishes the command. So, it's
> really bad when it happens - spin down, spin up followed by immediate
> power off.
--
Robert Hancock Saskatoon, SK, Canada
To email, remove "nospam" from hancockr@nospamshaw.ca
Home Page: http://www.roberthancock.com/
next prev parent reply other threads:[~2007-04-18 23:01 UTC|newest]
Thread overview: 65+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <fa.nTNVZ3bPe8773+gVV7CvcwBT5zY@ifi.uio.no>
2007-04-13 23:21 ` Loud "pop" coming from hard drive on reboot Robert Hancock
[not found] ` <fa.r8VLu18GDND9EByYV/EX2mH9V88@ifi.uio.no>
[not found] ` <fa.30Zxf5IYhdVc+I5v0caKmHH3HmE@ifi.uio.no>
[not found] ` <fa.EFm9zBLufsOlxdviaZmnBDcbYgY@ifi.uio.no>
[not found] ` <fa.TBFIUvjBaGbwUHy5JUiGJpvOeMI@ifi.uio.no>
[not found] ` <fa.jDn5j5GVDwXXnVYH74vVT3m+Gq8@ifi.uio.no>
2007-04-18 23:00 ` Robert Hancock [this message]
2007-04-18 23:25 ` Chuck Ebbert
2007-04-19 13:30 ` emisca
[not found] <fa.C4axrtm0R4NUqTWfuNUHmUuWy3s@ifi.uio.no>
[not found] ` <fa.VWJWPLq+/tQvH9AK4UjcjZqbJe4@ifi.uio.no>
[not found] ` <fa.EnoRw2EXyWNvVcFxHrcbfZBCcsg@ifi.uio.no>
[not found] ` <fa.M3hXdZRYWoxu+2mG+LfZsZs6AKA@ifi.uio.no>
[not found] ` <fa.9O8bUjY5F4TzNzCQp6dHXDtOIR0@ifi.uio.no>
[not found] ` <fa.kwrK207qOU0rARQuJJKqsJ7Nk4w@ifi.uio.no>
2007-04-18 22:58 ` Robert Hancock
[not found] <fa.XZdGeaFaW9WSFIAsz5f9RETfH0c@ifi.uio.no>
[not found] ` <fa.8Q2FxIVtQ1sfsfDBeXACAS7rK6Y@ifi.uio.no>
2007-04-18 22:57 ` Robert Hancock
[not found] <88SeR-5Sf-15@gated-at.bofh.it>
[not found] ` <88Sov-662-3@gated-at.bofh.it>
[not found] ` <88SHV-6uL-29@gated-at.bofh.it>
[not found] ` <8agVk-3wc-81@gated-at.bofh.it>
[not found] ` <8b3IR-4mE-25@gated-at.bofh.it>
[not found] ` <8b3SA-4z3-5@gated-at.bofh.it>
[not found] ` <8b42g-51N-15@gated-at.bofh.it>
[not found] ` <8bbdm-7iS-27@gated-at.bofh.it>
2007-04-18 11:47 ` Bodo Eggert
2007-04-18 12:05 ` Tejun Heo
2007-04-18 12:29 ` Alan Cox
2007-04-18 12:46 ` Tejun Heo
2007-04-18 12:50 ` Tejun Heo
2007-04-18 13:03 ` Alan Cox
2007-04-18 13:05 ` Tejun Heo
2007-04-18 13:39 ` Stephen Clark
2007-04-19 7:18 ` Jan Engelhardt
2007-04-19 12:59 ` Stephen Clark
2007-04-19 13:32 ` Mark Lord
2007-04-18 14:32 ` Mark Lord
2007-04-18 14:35 ` Mark Lord
2007-04-18 15:06 ` Alan Cox
2007-04-18 15:16 ` Mark Lord
2007-04-18 15:25 ` Tejun Heo
2007-04-18 17:08 ` Mark Lord
2007-04-18 17:19 ` Mark Lord
2007-04-18 17:46 ` Chuck Ebbert
2007-04-18 21:22 ` Bartlomiej Zolnierkiewicz
2007-04-18 21:27 ` Chuck Ebbert
2007-04-21 23:20 ` Peter Zijlstra
2007-04-23 23:27 ` Chuck Ebbert
2007-04-18 21:29 ` Greg Freemyer
2007-04-18 17:46 ` Stephen Clark
2007-04-19 17:50 ` Chuck Ebbert
2007-04-20 12:15 ` Stephen Clark
2007-04-20 19:57 ` Fabio Comolli
2007-04-21 9:45 ` emisca
2007-04-21 9:50 ` Fabio Comolli
2007-04-21 14:33 ` Jan Engelhardt
2007-04-21 15:11 ` Fabio Comolli
2007-04-18 17:04 ` Stephen Clark
2007-04-11 21:07 Chuck Ebbert
2007-04-11 21:16 ` Jan Engelhardt
2007-04-11 21:35 ` Chuck Ebbert
2007-04-11 21:49 ` Jan Engelhardt
2007-04-11 22:07 ` Chuck Ebbert
2007-04-13 19:42 ` Bartlomiej Zolnierkiewicz
2007-04-13 19:36 ` Chuck Ebbert
2007-04-13 20:47 ` Bartlomiej Zolnierkiewicz
2007-04-13 21:13 ` Chuck Ebbert
2007-04-15 16:07 ` emisca
2007-04-15 19:06 ` auxsvr
2007-04-17 21:41 ` Mark Lord
2007-04-17 21:49 ` Chuck Ebbert
2007-04-17 22:03 ` Mark Lord
2007-04-18 5:39 ` Tejun Heo
2007-04-18 21:31 ` Bartlomiej Zolnierkiewicz
2007-04-18 23:36 ` Mark Lord
2007-04-18 23:51 ` Mark Lord
2007-04-14 10:52 ` Pavel Machek
2007-04-15 15:53 ` Henrique de Moraes Holschuh
2007-04-15 18:50 ` Jan Engelhardt
2007-04-16 22:26 ` Chuck Ebbert
2007-04-17 7:00 ` emisca
2007-04-17 7:00 ` emisca
2007-04-17 7:37 ` Fabio Comolli
2007-04-17 20:15 ` Henrique de Moraes Holschuh
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=4626A303.80208@shaw.ca \
--to=hancockr@shaw.ca \
--cc=htejun@gmail.com \
--cc=liml@rtr.ca \
--cc=linux-kernel@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.