Re: blob release?

[Erik M. <J.A...@it...>]

On Fri, Apr 12, 2002 at 04:13:32AM -0600, Tim Riker wrote:
> - Unexplained occasional slow erases for AMD flash - Russ?

Haven't seen it happening on my Tux.

> - occasional erases of the wrong partition!
> 
> once in a while when I flash a root image and a kernel image on a
> shannon the blob partition is erased. I don't know why this happens. It
> does not seem to happen nearly as often if I soft reboot between each
> flash.

Never seen it, but it shouldn't happen. I think it can be because we
left the flash not in read array mode. Might be related to the previour
problem.

> - strange flash error messages.
> 
> lock a block, write to it, you get errors. Unlock it, still error
> messages. flash to it, still error messages. check it, it all worked.
> The first write fails, the unlock and the second write succeed, but give
> error messages.

With what kind of flash? Intel or AMD?

> - xmodem padding.
> 
> jffs2 uploads appear to be padded with 0x1a and so mess up jffs2 when it
> tries to mark the rest of the upload block. Don't know if 0x1a can be
> relied on. Perhaps we can search for 8 or more of the same byte at the
> end of the last block and change them all to 0xff if found? then set the
> length to this guess value and perhaps md5sums would work again? Perhaps
> an upgraded protocol with length info should be implemented instead?

That's because xmodem has no way to tell the receiver the exact
filesize. It only sends complete blocks, and pads them with whatever it
likes. Either we have to implement ymodem (which is basically xmodem
with 1k blocks, multiple files, and file attributes like name and
length), or you have to pad the file you want to upload with dd (dd
if=orig of=new bs=1k conv=sync).

> I'd like to see a faster boot unless keypress option (if not the
> default)

That's easy to change in the param block.

> Erik Mouw wrote:
> > I usually release a new version when there are no knowm major bugs.
> > Right now we have the following issues still open:
> > - serial-typeahead bug fixed
> 
> fixed? or needs to be?

Needs to be.


Erik

-- 
J.A.K. (Erik) Mouw, Information and Communication Theory Group, Faculty
of Information Technology and Systems, Delft University of Technology,
PO BOX 5031, 2600 GA Delft, The Netherlands  Phone: +31-15-2783635
Fax: +31-15-2781843  Email: J.A...@it...
WWW: http://www-ict.its.tudelft.nl/~erik/