Hi!
Am 03.10.2015 um 06:27 schrieb Heiko Schocher:
According to Richard Weinberger, UBI fastmap is broken in U-Boot. There are plenty of fixes in Linux that we should pull in U-Boot to fix it.
Thanks for pointing!
BTW: it is not broken in terms of you broke it.
Puuh ;-)
In what way is it broken? If we update to 4.1, will ubi work (mount an existing UBI partition with fastmap) on existing boards?
The on-flash layout did not change, so it should work.
The "old" fastmap code had a number of issues, mostly related to powercuts and some logical issues. In 4.1 it saw a huge amount of rework and fixes, including UBI core code.
It is just the old fastmap version. In v4.1 fastmap saw a massive update. Sadly this changes are a way to big for the stable tree.
What do you mean with "for the stable tree" ?
I was under the assumption that you are porting all UBI fixes to u-boot which are marked for stable. As the fastmap rework turned out to be much more than a few single fixes they are not in the Linux stable tree.
Maybe you are already aware of this and you have some work-in-progress patches to share? Otherwise, I might be able to spend some time working on this in the next weeks.
I'll happily help you!
I am next week in Dublin on the ELCE so I have no time to look into this issue ... maybe the week after ...
I'm also at ELCE, maybe we can discuss this also in person.
Thanks, //richard