Am 20.10.2015 um 06:00 schrieb Heiko Schocher: > Hello Richard > > Am 19.10.2015 um 23:48 schrieb Richard Weinberger: >> Am 19.10.2015 um 23:40 schrieb Ezequiel Garcia: >>> On 19 October 2015 at 17:22, Richard Weinberger <rich...@nod.at> wrote: >>>> Am 19.10.2015 um 15:47 schrieb Ezequiel Garcia: >>>>> After some further investigation, printing the counters as Richard >>>>> suggested >>>>> I found it was a bug on my side :-( The Linux partition and the U-Boot >>>>> partition >>>>> had different size (i.e. PEB count) and so Fastmap complained :-( >>>>> >>>>> We trimmed the Linux partition size, and forgot to change U-Boot's >>>>> (or thought it wouldn't matter). >>>>> >>>>> Sorry for the noise guys! >>>> >>>> Good to know. :) >>>> >>>> Let me find a way to detect and report this kind of user error >>>> better. >>>> The WARN_ON() is only meant for bad internal errors. >>>> >>> >>> Sure. In case it's not clear, let me clarify what the issue was: the >>> MTD partition >>> has one size in Linux (4072 EB) and another size in U-Boot (4076 EB). >>> >>> When the map was built by Linux's Fastmap, it contained a number of PEBs >>> that >>> conflicted with the number of PEBs U-Boot's Fastmap code was expecting >>> (becase Linux EB != U-Boot EB). >>> >>> Not sure how you would detect such a mismatch, but it was a very good >>> idea to print a noisy warning :-) >> >> I think it would make sense to drop the WARN_ON() and replace it to a >> warning using ubi_err() which explains what possible went wrong. >> i.e. MTD partition layout mismatch, an internal error, etc... > > Yep. > >>> We were effectively running without fastmap so far, becasue neither U-Boot >>> nor Linux could find a proper fastmap and attach the UBI partition using it. >> >> Yeah, U-Boot's fast decided to fall back to scanning mode and had to drop the >> existing fastmap and therefore Linux also had to do a full scan too. > > Didn;t got this, why is fastmap not working in U-Boot?
No, the above explanation is why fastmap was used in Ezequiel's setup. Thanks, //richard _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
