Re: [9fans] JTAG

2010-11-02 Thread Bhanu Nagendra Pisupati
I am trying to understand the end objective of the JTAG work discussed in one of the threads last week (sorry, I'm behind on my mails!). There was one response that said: The hope is that it would help debug usb/bt device issues on kw.; but beyond this I could not make out the use case for this

Re: [9fans] JTAG

2010-11-02 Thread Gorka Guardiola
On Tue, Nov 2, 2010 at 7:32 AM, Bhanu Nagendra Pisupati bpisu...@cs.indiana.edu wrote: I am trying to understand the end objective of the JTAG work discussed in one of the threads last week (sorry, I'm behind on my mails!). There was one response that said: The hope is that it would help debug

Re: [9fans] JTAG

2010-11-02 Thread Steve Simon
Could one (is is this the plan) to generate a /proc like virtual file system for jtag so acid will then work over jtag? -Steve

[9fans] history question

2010-11-02 Thread erik quanstrom
what is the history of waserror in the plan 9 kernel? is it a local invention? if so, when and by whom was it added. - erik

Re: [9fans] A little more ado about async Tclunk

2010-11-02 Thread Richard Miller
There really is a University of Wollongong. The Wollong Group was a Unix team in the 70s. Just to clarify (or not), the Wollongong Group was a company in Palo Alto (incorporated 6 June 1980 - not quite 70s therefore) whose only connection to the University of Wollongong was a software license -

Re: [9fans] A little more ado about async Tclunk

2010-11-02 Thread Eric Van Hensbergen
On Tue, Nov 2, 2010 at 8:49 AM, Richard Miller 9f...@hamnavoe.com wrote: Apologies for raising this thread's signal/noise ratio. Is that possible? :) -eric

Re: [9fans] history question

2010-11-02 Thread Rob Pike
as part of the 1989 kernel, ken wrote its beginnings with a pattern that involved a lot of repetitive typing but had the basic structure. each function had to define local pieces. i took his idea and wrapped it into the structure that's there now, which made it easier to get right in practice. i'm

Re: [9fans] A little more ado about async Tclunk

2010-11-02 Thread Richard Miller
In Hoare's model, livelock and deadlock cannot be distinguished, This was true in the early days of CSP but the theory has evolved a fair bit since then. The current model explicitly includes failures and divergences as part of the semantics of a process (in addition to its traces); these were

[9fans] T/RStream?

2010-11-02 Thread David Leimbach
Is there anywhere to go see the work in progress for this? If I can't see the work can we at least talk about the encoding of TStream and RStream? I could see wanting to work this into the user space implementations of 9P that exist for various programming languages. Dave

[9fans] Preferred ARM platform?

2010-11-02 Thread David Leimbach
I've been having a pretty good experience with the Guruplug with Plan 9 (I have the standard model that doesn't overheat so far and only one Gb ethernet), thanks to the efforts of the Plan 9 and Inferno communities. Unless I read incorrectly, the Beagleboard platforms are easier to work with for

Re: [9fans] Preferred ARM platform?

2010-11-02 Thread Jacob Todd
Iirc, at iwp9 geoff said in so many words that the beagleboard was having problems with undocumented..stuff. The video is on livestream.com/iwp9 if you want to watch it.

Re: [9fans] JTAG

2010-11-02 Thread Gorka Guardiola
On Tue, Nov 2, 2010 at 11:28 AM, Steve Simon st...@quintile.net wrote: Could one (is is this the plan) to generate a /proc like virtual file system for jtag so acid will then work over jtag? -Steve At the level I am thinking/trying now, I am thinking of exporting a filesystem with a file

[9fans] JTAG

2010-11-02 Thread Bakul Shah
Probably an overkill but this webpage has a lot of useful information on JTAG (it might be worth talking to Mark Whitis and/or checking out some links on the page for the plan9 JTAG effort). http://www.freelabs.com/~whitis/electronics/jtag/

Re: [9fans] T/RStream?

2010-11-02 Thread ron minnich
On Tue, Nov 2, 2010 at 7:41 AM, David Leimbach leim...@gmail.com wrote: I could see wanting to work this into the user space implementations of 9P that exist for various programming languages. Andrey did work it into the Newsham code and it worked well, I think he still has it. ron

Re: [9fans] JTAG

2010-11-02 Thread Nick LaForge
What a great page! (I see that it mentions 'urjtag' near the end, which I'd encountered in trying flash my Altera with an ordinary parallel port. It has lots code for many disparate devices in cvs, including mine, the EP2C8.) Nick On 11/2/10, Bakul Shah bakul+pl...@bitblocks.com wrote:

Re: [9fans] Preferred ARM platform?

2010-11-02 Thread Nick LaForge
Beagleboard's ethernet hogs the usb bus! Gumstix has a proper ethernet. Nick On 11/2/10, Jacob Todd jaketodd...@gmail.com wrote: Iirc, at iwp9 geoff said in so many words that the beagleboard was having problems with undocumented..stuff. The video is on livestream.com/iwp9 if you want to

Re: [9fans] What USB audio device are you using?

2010-11-02 Thread Nick LaForge
I got this: http://www.amazon.com/Syba-SD-CM-UAUD-Adapter-C-Media-Chipset/dp/B001MSS6CS Haven't tried too hard to get 9 to use it, but it's usb and linux has the code too. Audio quality is high, that is until you plug in a mic and line-in and line-out signals get mixed. Btw John, I just got

Re: [9fans] Preferred ARM platform?

2010-11-02 Thread geoff
As far as I know, there isn't yet a good, inexpensive, well-documented ARM system. I tend to prefer the Marvell Kirkwood systems (the plugs) because they have faster processors, faster and smarter Ethernet controllers, and somewhat simpler SoCs than the TI OMAP3 systems (beagle, igep, gumstix).

Re: [9fans] Preferred ARM platform?

2010-11-02 Thread erik quanstrom
As far as I know, there isn't yet a good, inexpensive, well-documented ARM system. pick any two! ;-) - erik

Re: [9fans] What USB audio device are you using?

2010-11-02 Thread Fernan Bolando
On Tue, Nov 2, 2010 at 12:47 PM, Nick LaForge nicklafo...@gmail.com wrote: I got this: http://www.amazon.com/Syba-SD-CM-UAUD-Adapter-C-Media-Chipset/dp/B001MSS6CS Haven't tried too hard to get 9 to use it, but it's usb and linux has the code too.  Audio quality is high, that is until you

Re: [9fans] JTAG

2010-11-02 Thread Eric Van Hensbergen
FWIW - the BGDBFS stuff had some aspects of this. I never quite got to the point of targeting it with acid though (particularly not multi-node). It would be an interesting extension, but IIRC it would also require some pretty invasive changes to ACID (or I could have just been looking at it

Re: [9fans] What USB audio device are you using?

2010-11-02 Thread John Floren
On Tue, Nov 2, 2010 at 3:00 PM, Fernan Bolando fernanbola...@mailc.net wrote: On Tue, Nov 2, 2010 at 12:47 PM, Nick LaForge nicklafo...@gmail.com wrote: I got this: http://www.amazon.com/Syba-SD-CM-UAUD-Adapter-C-Media-Chipset/dp/B001MSS6CS Haven't tried too hard to get 9 to use it, but it's

Re: [9fans] T/RStream?

2010-11-02 Thread David Leimbach
On Tue, Nov 2, 2010 at 10:19 AM, ron minnich rminn...@gmail.com wrote: On Tue, Nov 2, 2010 at 7:41 AM, David Leimbach leim...@gmail.com wrote: I could see wanting to work this into the user space implementations of 9P that exist for various programming languages. Andrey did work it into

Re: [9fans] Preferred ARM platform?

2010-11-02 Thread Nick LaForge
As far as I know, there isn't yet a good, inexpensive, well-documented ARM system. pick any two! ;-) Between two evils, choose neither, between two goods, choose both. -- Tryon Edwards A nice quote from a nice book on distributed systems [*] Need I quote another distributed systems expert,

Re: [9fans] Preferred ARM platform?

2010-11-02 Thread geoff
The plugs make fine servers but there is also interest in a small, portable terminal that boots quickly.

Re: [9fans] T/RStream?

2010-11-02 Thread ron minnich
On Tue, Nov 2, 2010 at 12:09 PM, David Leimbach leim...@gmail.com wrote: Cool.  You mean Newsham's Python code or Newsham's Haskell code? :-) python. ron

Re: [9fans] JTAG

2010-11-02 Thread Gorka Guardiola
On Nov 2, 2010, at 5:45 PM, Bakul Shah bakul+pl...@bitblocks.com wrote: Probably an overkill but this webpage has a lot of useful information on JTAG (it might be worth talking to Mark Whitis and/or checking out some links on the page for the plan9 JTAG effort).