From: Tejun Heo <htejun@gmail.com>
To: 7eggert@gmx.de
Cc: Chuck Ebbert <cebbert@redhat.com>, emisca <emisca.ml@gmail.com>,
Jan Engelhardt <jengelh@linux01.gwdg.de>,
Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>,
linux-kernel <linux-kernel@vger.kernel.org>,
linux-ide@vger.kernel.org, Adrian Bunk <bunk@stusta.de>,
Andrew Morton <akpm@osdl.org>
Subject: Re: Loud "pop" coming from hard drive on reboot
Date: Wed, 18 Apr 2007 21:05:21 +0900 [thread overview]
Message-ID: <46260981.1040109@gmail.com> (raw)
In-Reply-To: <E1He8dA-0000mw-LI@be1.lrz>
Bodo Eggert wrote:
>> SCSI part of the fix is queued in scsi-misc-2.6 tree and libata-dev part
>> is acked and waiting to be merged, so the fix will be available in
>> 2.6.22. However, it's disabled by default to remain compatible with the
> ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
>> current behavior and requires userland change to fully fix the problem.
> ^^^^^^^^^^^^^^^^
> It sounds like the Schilling kind of compatibility: "The old burner destroyed
> your disk on buffer underruns, therefore the new thing should do the same
> instead of giving you a perfectly readable data disk."
>
> Guys, not destroying hardware is _NOT_ bad!
Not that simple. Most disks don't spin up on SYNCHRONIZE_CACHE if its
cache is clean. Sadly some disks actually spin up when it receives spin
down command while spun down to immediately spin down again, so we would
be fixing problem for some number of disks while breaking others. :-(
--
tejun
next prev parent reply other threads:[~2007-04-18 12:05 UTC|newest]
Thread overview: 57+ messages / expand[flat|nested] mbox.gz Atom feed top
[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 ` Loud "pop" coming from hard drive on reboot Bodo Eggert
2007-04-18 12:05 ` Tejun Heo [this message]
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
2007-04-17 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 7:37 ` Fabio Comolli
2007-04-17 20:15 ` Henrique de Moraes Holschuh
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