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From: Richard Weinberger <richard@nod.at>
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Cc: "David Oberhollenzer (david.oberhollenzer@sigma-star.at)"
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Subject: Re: How to organize UBI volumes and power crash
Date: Tue, 02 Oct 2018 10:56:23 +0200
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Am Dienstag, 2. Oktober 2018, 10:53:00 CEST schrieb =D0=9C=D1=8F=D1=81=D0=
=BE=D0=B5=D0=B4=D0=BE=D0=B2 =D0=90.=D0=AE.:
> Thank ypu, Richard.
>=20
> >  Both UBI and UBIFS must not corrupt upon a powercut, if you face such =
an
> issue, please report. This could be a bug or a hardware problem.
>=20
> But http://www.linux-mtd.infradead.org/doc/ubifs.html#L_unstable_bits=20
> says about such possible problems (unstable bits).

This problem is highly theoretical and so far I have never seen it.
So far anyone that claimed to suffer from that was wrong and it turned out =
that
it was some other issue.

It is time to remove that paragraph from the website since it confuses user
over and over.
David, can you please file and merge a patch?
=20
>  >  The general recommendation is having the MTD partition and therefore=
=20
> the UBI device as large as possible such that the wear leveling large.
> 02.10.2018 11:41, Richard Weinberger =D0=BD=D0=B0=D0=BF=D0=B8=D1=81=D0=B0=
=D0=BB:
>=20
> Do you mean one MTD partition for first UBI volume, and second MTD=20
> partition for another one?

No, just one UBI device on one MTD partition with multiple UBI volumes.

Thanks,
//richard