Re: o_sync in vfat driver

[Pavel Machek]

On Út 28-02-06 00:21:53, col-pepper@xxxxxxxxxxx wrote:
> On Mon, 27 Feb 2006 22:32:07 +0100, linux-os (Dick Johnson)  
> <linux-os@xxxxxxxxxxxx> 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

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).
								Pavel
-- 
Web maintainer for suspend.sf.net (www.sf.net/projects/suspend) wanted...
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