Rh, my earlier reply was to you, and that link shows that it is now a
problem with androids use of ext4.


On Thu, Mar 27, 2014 at 4:55 PM, rh_ <[email protected]> wrote:

> On Thu, 27 Mar 2014 13:41:24 -0500
> Charles Steinkuehler <[email protected]>
> wrote:
>
> > On 3/27/2014 12:26 PM, rh_ wrote:
> > > On Thu, 27 Mar 2014 07:41:11 -0500
> > > Charles Steinkuehler
> > > <[email protected]> wrote:
> > >
> > >> On 3/26/2014 10:22 PM, Yiling Cao wrote:
> > >>> Thanks Brandon for your experience. I do agree with that better to
> > >>> put whole disk read only.
> > >>>
> > >>> But how do iPhone and Android survive? Esp for those Android
> > >>> phones? They are very prone to sudden power removal as well.
> > >>
> > >> What?  These devices are battery powered, and other than opening
> > >> the case and physically removing the battery they are guaranteed
> > >> enough power to do a proper and orderly shutdown.
> > >
> > > I pull the battery on my android frequently doing devel. Never had
> > > any problems. I pull the plug on my BBB all the time too, at least
> > > once/day. No problems.
> >
> > Yes, but are you writing to the flash when you pull the power?
>
> Don't know. But it's possible. How would I know? If it doesn't boot?
> For android there's JAFFS (or is it YAFFS) so it's more robust than ext4
> I guess.
>
> >
> > There is a huge difference between "it works for me" and *RELIABLY*
> > avoiding data corruption when power is unexpectedly removed with
> > significant write activity in-progress.
>
> Ok, but I haven't encountered a problem yet, and I'm never that lucky.
> With the millions and millions (billions?) of handsets I would think
> data corruption would be a much more visible problem. I haven't seen
> it happen yet over many phones and many years.
>
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