From: col-pepper@piments.com
To: "linux-os (Dick Johnson)" <linux-os@analogic.com>
Cc: "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: Re: o_sync in vfat driver
Date: Tue, 28 Feb 2006 00:21:53 +0100 [thread overview]
Message-ID: <op.s5nm6rm5j68xd1@mail.piments.com> (raw)
In-Reply-To: <Pine.LNX.4.61.0602271610120.5739@chaos.analogic.com>
On Mon, 27 Feb 2006 22:32:07 +0100, linux-os (Dick Johnson)
<linux-os@analogic.com> wrote:
> Flash does not get zeroed to be written! It gets erased, which sets all
> the bits to '1', i.e., all bytes to 0xff.
Thanks for the correction, but that does not change the discussion.
> Further, the designers of
> flash disks are not stupid as you assume. The direct access occurs
> to static RAM (read/write stuff).
I'm not assuming anything . Some hardware has been killed by this issue.
http://lkml.org/lkml/2005/5/13/144
It seems that it's you making the assumption that all of these devices are
manufactured the same way.
The constant dirtying of the buffer will still cause excessive use of the
flash block hosting the FAT. Clearly not all devices use a load spreading
mechanism and this can lead to premature failure.
next prev parent reply other threads:[~2006-02-27 23:22 UTC|newest]
Thread overview: 49+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <op.s5cj47sxj68xd1@mail.piments.com>
[not found] ` <op.s5jpqvwhui3qek@mail.piments.com>
[not found] ` <op.s5kxhyzgfx0war@mail.piments.com>
[not found] ` <op.s5kx7xhfj68xd1@mail.piments.com>
[not found] ` <op.s5kya3t0j68xd1@mail.piments.com>
[not found] ` <op.s5ky2dbcj68xd1@mail.piments.com>
[not found] ` <op.s5ky71nwj68xd1@mail.piments.com>
[not found] ` <op.s5kzao2jj68xd1@mail.piments.com>
2006-02-26 22:50 ` o_sync in vfat driver col-pepper
2006-02-27 13:28 ` Lennart Sorensen
2006-02-27 13:50 ` Arjan van de Ven
2006-02-27 14:06 ` Anton Altaparmakov
2006-02-27 14:27 ` Arjan van de Ven
2006-02-27 14:41 ` Anton Altaparmakov
2006-02-27 21:04 ` col-pepper
2006-02-27 21:17 ` Arjan van de Ven
2006-02-27 23:21 ` col-pepper
2006-02-27 21:32 ` linux-os (Dick Johnson)
2006-02-27 23:21 ` col-pepper [this message]
2006-02-28 13:10 ` linux-os (Dick Johnson)
2006-02-28 13:52 ` Sergei Organov
2006-02-28 15:18 ` Lennart Sorensen
2006-02-28 16:16 ` linux-os (Dick Johnson)
2006-02-28 17:23 ` Sergei Organov
2006-02-28 18:09 ` Krzysztof Halasa
2006-02-28 17:16 ` col-pepper
2006-02-28 22:38 ` Pavel Machek
2006-02-28 23:10 ` why VM_SHM has been removed from mm.h? Kamran Karimi
2006-03-01 3:02 ` Phillip Susi
2006-03-01 7:56 ` Hugh Dickins
2006-03-01 14:58 ` Kamran Karimi
2006-03-01 16:24 ` Hugh Dickins
2006-03-01 16:55 ` Kamran Karimi
2006-03-01 17:50 ` Hugh Dickins
2006-03-01 4:28 ` o_sync in vfat driver Kyle Moffett
2006-03-02 8:23 ` col-pepper
2006-03-02 8:32 ` Pavel Machek
2006-02-28 16:11 ` Helge Hafting
2006-02-28 22:37 ` Pavel Machek
2006-02-27 14:26 ` linux-os (Dick Johnson)
2006-02-27 18:53 ` Jan Engelhardt
2006-02-26 22:55 col-pepper
-- strict thread matches above, loose matches on Subject: below --
2006-02-26 23:08 col-pepper
2006-02-27 0:51 ` Andrew Morton
2006-02-27 22:19 ` col-pepper
2006-02-27 23:12 ` Andrew Morton
2006-02-28 18:47 ` Chris Mason
2006-02-28 19:10 ` Andrew Morton
2006-02-28 19:48 ` Chris Mason
[not found] ` <87u0aiw6pi.fsf@duaron.myhome.or.jp>
2006-03-01 15:23 ` Chris Mason
[not found] ` <87mzg9wst0.fsf@duaron.myhome.or.jp>
2006-03-02 13:45 ` Chris Mason
2006-03-02 14:07 ` OGAWA Hirofumi
2006-03-02 17:01 ` Chris Mason
2006-03-02 18:14 ` OGAWA Hirofumi
2006-03-29 2:13 ` Mathis Ahrens
2006-03-30 17:35 ` col-pepper
2006-02-28 0:52 ` Machida, Hiroyuki
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