Re: [Yaffs] loopback , power-off, and data is lost

Matthieu CASTET <matthieu.castet@parrot.com> writes:

> After adding OS trace to yaffs2, I saw that sync does a call to
> yaffs_sync_fs, but it is a nop.
>
> This mean sync syscall doesn't flush the yaffs2 cache and data it
> lost on unclean umount.
>
> Calling yaffs_FlushEntireDeviceCache in yaffs_sync_fs seems to make
> sync working. What do you think of that ?

I suffer from the same problem. If a yaffs2 filesystem is merely
remounted read-only, and never properly unmounted, I seem to lose
data. This only (I think, at least primarily) happens on filesystems
that are loopback mounted from files in the yaffs2 filesystem. I'd
love to see a fix for sync.


--
Henrik Grindal Bakken <hgb@ifi.uio.no>
PGP ID: 8D436E52
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