Re: Sun Leo (ZX)

2008-04-27 Thread Mark Morgan Lloyd

Chris Newport wrote:

On Sun, 27 Apr 2008, Mark Morgan Lloyd wrote:



That leaves me in a position where I can't see printk() output. I 
considered using prom_printf() which is how I got Linux running on my 
SS1000E, however I


Did you manage to get it stable with SMP ?.
I had a few stabs at it and gave up.


Rock solid on 2.2 but not later. Late 2.4 was close, I sometimes had it 
running well enough to demonstrate an enormous performance improvement 
over 2.2 (and over Solaris), but there was /something/ that caused 
intermittent lockups- possibly related to the exact compiler version 
during build.


--
Mark Morgan Lloyd
markMLl .AT. telemetry.co .DOT. uk

[Opinions above are the author's, not those of his employers or colleagues]


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DPL teams review 2008

2008-04-27 Thread Steve McIntyre
Hi,

The first thing I promised to do when I became DPL was to initiate a
thorough review of Debian's teams. Well, no time like the present!

I want to get an accurate, honest assessment of how our central tasks
are going and how well (or not!) people are working together in our
various teams. I'm assuming nothing at this point. I am expecting that
analysing the results of this survey will point out places where we
can improve, but until I have some real data to go on I'm not going to
be pushed into making over-hasty changes.

What I want from the review
===

It's probably best if I lay down some ground rules here to start with.

Firstly, I'm not wanting to prompt more flame wars. But I do want to
see honest, truthful opinions from people. Therefore, the best way for
this to proceed will be for people to send individual responses
directly to me (via leader@ please). I will treat those messages as
private and confidential unless you explicitly tell me otherwise. Of
course, I *will* be making my *general* analysis public when I'm
done. If I didn't, there'd be no point in doing this review in the
first place! If you're really bothered about confidentiality, then by
all means PGP-encrypt your response to me (my key is ID 0x88c7c1f7).

Secondly, I'm human and I make mistakes. Yes, really! If I forgot to
send this to you or your team but you think I should have done, then
please don't feel offended that I missed you. Feel free to call me a
muppet, but please just reply to me anyway. The more data I get about
all our teams at this point, the better the conclusions I can draw
from that data.

Thirdly, this exercise should not take too long to work through. Yes,
I know I'm asking for documentation (shock!), but it really shouldn't
take long for anybody to give me the information I'm asking for. I
want to have the data ready for working with *reasonably* soon, so I'm
setting a deadline just under 4 weeks from now (23:59:59 UTC, Sunday
25th May). People may be on vacation or whatever so I'm going to be
reasonably generous with my time frame here. If you can't get back to
me within a month then please tell me and we'll work something
out. However, please be warned: if I hear nothing at all in that
month, then that lack of data will become a data point itself.

Finally, and most importantly, please treat this sensibly. This is not
a witch hunt and I'm not just looking for excuses to abuse or punish
people. I'm simply looking for positive ways where we can make Debian
work better. I'm not going to be playing favourites here either; I'm
including teams that include me in the review here, and I'd be very
surprised if we don't find issues in those just as much as anywhere
else.

What comes after the review?


I'll work through the results myself and summarise them suitably for
publishing. Once I have data, I'll be wanting to talk with our teams
again about how best to make whatever improvements are indicated.
Those may include trying to recruit more people to help with a task,
giving a team more publicity or hugs (or whatever) so they feel better
loved by the rest of us, or even something as simple as buying them
beer and saying thanks for a job well done. If we need to spend some
of Debian's money to make something work better, then I'll consider
that too. At this point, (almost) anything is possible and I'm not
going to rule anything out.

The review itself
=

Here's the bit that really matters to me - the questions I want *you*
to answer. As I've said already, please be as truthful and honest as
you can. If you think something is completely broken, then say
so. Equally, if you don't really have a strong opinion on something
then say that too - don't just make things up for the sake of filling
in a form here!

I'm sending this to lots of team mailing lists. Clearly, there will be
some overlap where people are on multiple teams. In those cases,
please send me just one response but reply to the team questions
several times, once per team.

===

1. You
--

a. What's your name, and where are you from? How long have you been
   involved in Debian?

b. What do you do outside of Debian - are you a student with lots of
   free time, or are you employed full-time with a family and lots of
   other commitments?

c. How much time *can* you comfortably spend on Debian work in a
   typical week? And how much time *do* you spend on Debian work?
   (Yes, I know these can be very different!)

d. What packages do you maintain? How well do you cope? Are you part
   of a team for those packages, or do you work on them on your own?
   How much time do you need to spend, on average? Are they in good
   shape?

e. How would you rank all of your tasks in order of importance?

f. Finally, are you having fun working on Debian? Why/why not?

2. Teams you're in
--

(please answer this section m

Re: Sun Leo (ZX)

2008-04-27 Thread Tom "spot" Callaway
On Sun, 2008-04-27 at 18:14 +, Mark Morgan Lloyd wrote:
> how do I use the -p 
> option that's supposed to flush printk() output to the console
> promptly?

-p should cause all printk() to go to the PROM...

~spot


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Re: Sun Leo (ZX)

2008-04-27 Thread Mark Morgan Lloyd
Apologies for the delay and lousy threading- I lost the connection to 
the ML.


On Fri, 18 Apr 2008 14:40:13 +0200 Tom "spot" Callaway wrote:

>>> I think I could usefully put some printk()s in leo.c, but I need to
>>> sort out the disc before I have any chance of compiling that.
>>
>>I'm back on this and I've been having fun with printk()s. What I can
>>see is:
>>
>>[MarkMLl] Entered leo_init()
>>[MarkMLl] In leo_init(), matched option
>>[MarkMLl] Entered of_register_driver()
>>[MarkMLl] driver_register() -> 0
>>[MarkMLl] of_register_driver() -> 0
>>Console: switching to mono PROM 80x34
>>rtc_init: no PC rtc found
>>
>>I think that the return from driver_register() hence
>>of_register_driver() indicates success so leo_init() is OK, however I
>>don't see control being transferred into leo_probe().

>> What is the significance of the match check? I presume this is a
>> device
>> name but what is it tested against?
>
>If memory serves, its checking for that value in the openpromfs.
>
>~spot

After comparing various drivers I've patched leo.c to match against 
"SUNW,leofb" rather than just "leofb" and the driver is now loading. 
Unfortunately it crashes the machine almost immediately- I see "Booting 
Linux..." followed by a clear screen then it's in a totally unresponsive 
state. It's worth noting that it's a /fast/ clear screen, not the five 
seconds it took when the kernel had fallen back to the PROM for output, 
so I know it's the Leo driver doing it... progress :-)


That leaves me in a position where I can't see printk() output. I 
considered using prom_printf() which is how I got Linux running on my 
SS1000E, however I note that that's deprecated- how do I use the -p 
option that's supposed to flush printk() output to the console promptly?


I've tried various combinations of video=offb:on etc. but something that 
I haven't tracked down is overriding that- I suspect it might be SILO 
doing some well-meaning sanity checks. I'd add that in all of the above 
I've tried using a serial console to no advantage.


I suspect that what I need to do is put kernel 2.4 on the system and 
check whether it works, then compare a 2.6 driver with a 2.4 to get a 
list of required changes- are these documented anywhere?


I'll continue tinkering when I can find time but any guidance would be 
appreciated.


--
Mark Morgan Lloyd
markMLl .AT. telemetry.co .DOT. uk

[Opinions above are the author's, not those of his employers or colleagues]


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From now on you will receive TOI-Billboard through the Zinester listserve

2008-04-27 Thread Zinester
>From now on you will receive TOI-Billboard through the Zinester listserve, 
>which makes it easy for you (and us) to deal with holiday interruptions. And 
>if you want to unsubscribe altogether it's a question of one click. At the 
>bottom of each mailing you find the relevant information.

Adam Keller
Beate Zilversmidt
The Other Israel


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