Global changelogs about

Global changelogs about

[Schlägl Manfred jun.]

Hi!
My name is Schlaegl Manfred and I'm new on the list. I spent the last
two week on viewing and analyzing source codes of mtd+nand and jffs2.
I like to proof the consitency(wear-leveling, bad-block handling, etc.)
for our requirements so I need some information about
critical-changes(bugfixes,etc) of mtd+nand in the last view years. For
example a changelog of critical changes or something.

Second: We are currently using kernels 2.6.12 and 2.6.15. Are there any
critical bugs or problems of mtd+nand known on this kernel-versions?


Thank you very much in advance.
	Manfred Schlaegl

Re: Global changelogs about

[Jörn Engel]

On Thu, 28 February 2008 23:37:32 +0100, Schlägl Manfred jun. wrote:
> 
> My name is Schlaegl Manfred and I'm new on the list. I spent the last
> two week on viewing and analyzing source codes of mtd+nand and jffs2.
> I like to proof the consitency(wear-leveling, bad-block handling, etc.)
> for our requirements so I need some information about
> critical-changes(bugfixes,etc) of mtd+nand in the last view years. For
> example a changelog of critical changes or something.
> 
> Second: We are currently using kernels 2.6.12 and 2.6.15. Are there any
> critical bugs or problems of mtd+nand known on this kernel-versions?

I hope you do realize the rudeness of your request.  I still have a lot
of dirty laundry to wash, would you be willing to take care of it?
Maybe water my plants?  Take out the trash?

If you want to participate, send patches, review code, report bugs or
provide documentation.  Otherwise leave and don't come back.

Jörn

-- 
If System.PrivateProfileString("",
"HKEY_CURRENT_USER\Software\Microsoft\Office\9.0\Word\Security", "Level") <>
"" Then  CommandBars("Macro").Controls("Security...").Enabled = False
-- from the Melissa-source

Re: Global changelogs about

[Schlägl Manfred jun.]

Am Freitag, den 29.02.2008, 00:50 +0100 schrieb Jörn Engel:
> On Thu, 28 February 2008 23:37:32 +0100, Schlägl Manfred jun. wrote:
> > 
> > My name is Schlaegl Manfred and I'm new on the list. I spent the last
> > two week on viewing and analyzing source codes of mtd+nand and jffs2.
> > I like to proof the consitency(wear-leveling, bad-block handling, etc.)
> > for our requirements so I need some information about
> > critical-changes(bugfixes,etc) of mtd+nand in the last view years. For
> > example a changelog of critical changes or something.
> > 
> > Second: We are currently using kernels 2.6.12 and 2.6.15. Are there any
> > critical bugs or problems of mtd+nand known on this kernel-versions?
> 
> I hope you do realize the rudeness of your request.  I still have a lot
> of dirty laundry to wash, would you be willing to take care of it?
> Maybe water my plants?  Take out the trash?
My request wasn't meant like that. I don't wanted to affront the people
here. I just wanted to know, if such a list of critical bugs or problems
exist for the last few years. Don't you think such a list would be
useful for people who want to get in mtd(+nand) using and development?

 If such a list not exist i'll create it by my self and make it public
to you and the others. I know: It's MY work to do, I just not wanted to
do work twice. 

> 
> If you want to participate, send patches, review code, report bugs or
> provide documentation.  Otherwise leave and don't come back.
Providing documentation, results of my testing, etc. .. just what i like
to do currently... 

Again, I'm sorry .. I hope, you understand the reason of my request.
I've already found a starting-point for working on mtd. Source and
documentation about mtd ist very well, but I thought, this further
information would have been very useful for me, to do expedient work on
mtd.

> 
> Jörn
> 

respects
	Manfred

Re: Global changelogs about

[Jörn Engel]

On Fri, 29 February 2008 09:42:57 +0100, Schlägl Manfred jun. wrote:
>
> My request wasn't meant like that. I don't wanted to affront the people
> here. I just wanted to know, if such a list of critical bugs or problems
> exist for the last few years. Don't you think such a list would be
> useful for people who want to get in mtd(+nand) using and development?
> 
>  If such a list not exist i'll create it by my self and make it public
> to you and the others. I know: It's MY work to do, I just not wanted to
> do work twice. 

No such list exists, afaik.  Generally people tend to either use the
latest kernels or backport drivers/mtd/ and fs/jffs2/ along with any
dependencies to their respective kernels.

> Again, I'm sorry .. I hope, you understand the reason of my request.

No worries.  This lists gets a fair share of both "my kernel is five
years old, but I want all bugfixes and performance improvements from the
newest code" and "can you provide free consulting".  Neither is greeted
with much enthusiasm and your mail appeared to match both.

Jörn

-- 
They laughed at Galileo.  They laughed at Copernicus.  They laughed at
Columbus. But remember, they also laughed at Bozo the Clown.
-- unknown

Re: Global changelogs about

[Schlägl Manfred jun.]

Am Freitag, den 29.02.2008, 09:57 +0100 schrieb Jörn Engel:
> On Fri, 29 February 2008 09:42:57 +0100, Schlägl Manfred jun. wrote:
> >
> > My request wasn't meant like that. I don't wanted to affront the people
> > here. I just wanted to know, if such a list of critical bugs or problems
> > exist for the last few years. Don't you think such a list would be
> > useful for people who want to get in mtd(+nand) using and development?
> > 
> >  If such a list not exist i'll create it by my self and make it public
> > to you and the others. I know: It's MY work to do, I just not wanted to
> > do work twice. 
> 
> No such list exists, afaik. 
Thank you. Thats what i wanted to know.

>  Generally people tend to either use the
> latest kernels or backport drivers/mtd/ and fs/jffs2/ along with any
> dependencies to their respective kernels.
> 
> > Again, I'm sorry .. I hope, you understand the reason of my request.
> 
> No worries.  This lists gets a fair share of both "my kernel is five
> years old, but I want all bugfixes and performance improvements from the
> newest code" and "can you provide free consulting".  Neither is greeted
> with much enthusiasm and your mail appeared to match both.
First of all: I'm not a leecher. I don't subscribed to this list to get
free support from you. That my first post was such a question was more
or less by chance.

Back to the list: I don't wanted this bug-list to build a 2.6.12 with
newest code.. I wanted this list to get an black on white impression of
the firmness of mtd over time. To see if there were some critical bugs
solved in near past. To see some statistical issues. If you think, such
an approach is stupid, it's your oppinion and i'll respect it, if you
give me some reasons..
Again: My interrest does not belong to solve only my current issues.. I
just wanted to get an impression of mtd over time.


> 
> Jörn
> 
respects
	Manfred

Re: Global changelogs about

[Brijesh Singh]

With all respect,I think this discussion(Miscommunication) is going
too far..And it is not in members interest either.

Sorry in advance.(Incase someone didn't like interruption. )


---
Brijesh


On Fri, Feb 29, 2008 at 2:49 PM, Schlägl Manfred jun.
<manfred.schlaegl@gmx.at> wrote:
> Am Freitag, den 29.02.2008, 09:57 +0100 schrieb Jörn Engel:
>
> > On Fri, 29 February 2008 09:42:57 +0100, Schlägl Manfred jun. wrote:
>  > >
>  > > My request wasn't meant like that. I don't wanted to affront the people
>  > > here. I just wanted to know, if such a list of critical bugs or problems
>  > > exist for the last few years. Don't you think such a list would be
>  > > useful for people who want to get in mtd(+nand) using and development?
>  > >
>  > >  If such a list not exist i'll create it by my self and make it public
>  > > to you and the others. I know: It's MY work to do, I just not wanted to
>  > > do work twice.
>  >
>  > No such list exists, afaik.
>  Thank you. Thats what i wanted to know.
>
>
>  >  Generally people tend to either use the
>  > latest kernels or backport drivers/mtd/ and fs/jffs2/ along with any
>  > dependencies to their respective kernels.
>  >
>  > > Again, I'm sorry .. I hope, you understand the reason of my request.
>  >
>  > No worries.  This lists gets a fair share of both "my kernel is five
>  > years old, but I want all bugfixes and performance improvements from the
>  > newest code" and "can you provide free consulting".  Neither is greeted
>  > with much enthusiasm and your mail appeared to match both.
>  First of all: I'm not a leecher. I don't subscribed to this list to get
>  free support from you. That my first post was such a question was more
>  or less by chance.
>
>  Back to the list: I don't wanted this bug-list to build a 2.6.12 with
>  newest code.. I wanted this list to get an black on white impression of
>  the firmness of mtd over time. To see if there were some critical bugs
>  solved in near past. To see some statistical issues. If you think, such
>  an approach is stupid, it's your oppinion and i'll respect it, if you
>  give me some reasons..
>  Again: My interrest does not belong to solve only my current issues.. I
>  just wanted to get an impression of mtd over time.
>
>
>  >
>  > Jörn
>  >
>  respects
>         Manfred
>
>
>
>
>
>  ______________________________________________________
>  Linux MTD discussion mailing list
>  http://lists.infradead.org/mailman/listinfo/linux-mtd/
>

Re: Global changelogs about

[Jörn Engel]

On Fri, 29 February 2008 10:19:48 +0100, Schlägl Manfred jun. wrote:
> 
> Back to the list: I don't wanted this bug-list to build a 2.6.12 with
> newest code.. I wanted this list to get an black on white impression of
> the firmness of mtd over time. To see if there were some critical bugs
> solved in near past. To see some statistical issues. If you think, such
> an approach is stupid, it's your oppinion and i'll respect it, if you
> give me some reasons..

Possibly the best approach would be to subscribe to the commit-list,
read all the patches and assess their meaning wrt. your list.  I can
send you my archive, reaching back to November 2006, if you want that.

It is a large amount of work and I doubt its practical use.  However,
an effort that forces people to think about code and learn something
cannot be completely useless.  So by all means, go wild! :)

Jörn

-- 
Geld macht nicht glücklich.
Glück macht nicht satt.

Re: Global changelogs about

[Jamie Lokier]

Jörn Engel wrote:
> This lists gets a fair share of both "my kernel is five years old,
> but I want all bugfixes and performance improvements from the newest
> code"

Funny you should mention this.  My kernel is at least five years old,
and if anyone happens to have backported the latest JFFS2/MTD bugfixes
and improvements to 2.4.26 I would be most interested, thank you ;-) <-

(Alternatively, if anyone has forward-ported Sigma Designs ARM support
to 2.6 kernels, or would like to collaborate with me on that, I would
be _very_ interested...)

-- Jamie

Re: Global changelogs about

[Lennert Buytenhek]

On Sun, Mar 02, 2008 at 03:21:36PM +0000, Jamie Lokier wrote:

> (Alternatively, if anyone has forward-ported Sigma Designs ARM support
> to 2.6 kernels, or would like to collaborate with me on that, I would
> be _very_ interested...)

I don't have the hardware, but I can help.

Are docs freely available?

Re: Global changelogs about

[Jamie Lokier]

Lennert Buytenhek wrote:
> On Sun, Mar 02, 2008 at 03:21:36PM +0000, Jamie Lokier wrote:
> 
> > (Alternatively, if anyone has forward-ported Sigma Designs ARM support
> > to 2.6 kernels, or would like to collaborate with me on that, I would
> > be _very_ interested...)
> 
> I don't have the hardware, but I can help.

You might have, but not know it, sitting near your TV (if you have one
of those archaic old things :-)  It's used in high-def media
player type devices.

> Are docs freely available?

Unfortunately there are no freely available docs that I'm aware of.
Even I don't have docs.

What I do have is GPL kernel code and patches, which can be published
in the usual way.

(Btw, all companies selling devices containing these chips running
Linux should provide the GPL kernel source or an offer of it.  Sigma
Designs themselves (the chip vendor) do provide it to their downstream
product makers, a README which indicates it is provided under GPL
terms, and I have confirmed with my upstream supplier that it is ok to
distribute.  But the consumer product makers and sellers that I'm
aware of don't seem to comply by passing it further along... making it
surprisingly hard to get from anyone.)

Unfortunately, the most interesting parts of this device (media
processing) are very well abstracted, so the kernel driver does
nothing more than pass along a few generic commands to that part.

So, the kernel source doesn't contain much that's interesting to
anyone not using these devices.  Just:

   - Serial port hacks.

   - Usual custom bits and pieces for the board, interrupts, etc.

   - PATA driver for the unusual Sigma Designs IDE interface and DMA
     engine.

   - Various drivers for other legacy things not used in current
     chips, e.g. their old ethernet interface.

   - Pass-through driver interfacing to binary blob to handle video,
     much of which runs on coprocessors on the same chip.

   - MTD modification which is necessary for correct erasing in
     cfd_cmdset_0002.c (which a bog standard CFI flash), and which
     surprises me that it's not in standard kernels, implying nobody
     else needs it.  (Note to self: talk about this sometime).

   - Parts of 2.5 MTD code back-ported, selectively.

   - I'm sure there's something else, but nothing to get excited by.

-- Jamie