From: Kyle Moffett <mrmacman_g4@mac.com>
To: Pavel Machek <pavel@suse.cz>
Cc: col-pepper@piments.com, LKML Kernel <linux-kernel@vger.kernel.org>
Subject: Re: o_sync in vfat driver
Date: Tue, 28 Feb 2006 23:28:30 -0500 [thread overview]
Message-ID: <DF133E7F-3A98-4C01-BC5D-7AA428499C3A@mac.com> (raw)
In-Reply-To: <20060228223855.GC5831@elf.ucw.cz>
On Feb 28, 2006, at 17:38:55, Pavel Machek wrote:
> I have seen flash disk dead in 5 minutes, even without o-sync.
> Those devices are often crap. (I copied tar file to flash by cat
> foo.tar > /dev/sda. That was apparently enough to kill that flash.
> Label "Yahoo" should have warned me).
Sometimes a flash device can have a temporary error condition that is
solved by rewriting the data. (I've seen it triggered by buggy USB
hubs that don't provide the rated power). It seems that a number of
flash drives have internal checks, and when those trigger it reports
a bad sector (even if it isn't permanently bad). My 1GB flashdrive
failed in that way, and I was able to fix the error by erasing with
"dd if=/dev/full of=/dev/usbkey" and reformatting. After the error
occurred I started md5summing every file I put on the drive, but I've
been using it for a month now and not a single checksum has miscomputed.
Cheers,
Kyle Moffett
next prev parent reply other threads:[~2006-03-01 4:28 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 ` 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
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 ` Kyle Moffett [this message]
2006-03-02 8:23 ` o_sync in vfat driver 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
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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