UBIFS Corrupt during power failure
Jamie Lokier
jamie at shareable.org
Fri Apr 17 09:51:49 EDT 2009
Artem Bityutskiy wrote:
> Jamie, thanks for feedback!
Thanks for the new sections in the UBI FAQ!
> Yeah...
>
> > That makes the range of parallel writes, and so
> > corruption-on-power-loss, even larger than max(N * strip_size, N *
> > block_size). The range is as large as the whole write, if one chip
> > is writing much faster than the others, so it cannot be represented
> > by a small number.
>
> Then I guess we should just introduce mtd->max_corruption ? This would
> mean maximum amount of bytes corruption may span in vase of power cuts?
With that name maybe whoever implements striping will remember think
about parallelism and limit it :-)
/* Max size of corrupted block when a write command is interrupted
by reset or power failure. */
u32 max_write_corruption;
-- Jamie
>
> --
> Best regards,
> Artem Bityutskiy (Битюцкий Артём)
>
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