Re: [9fans] HTTP forwarding with aux/trampoline

2009-09-26 Thread Lyndon Nerenberg - VE6BBM/VE7TFX
> is t possible that the path mtu is < 1500 bytes?  if
> so, trampoline isn't going to forward icmp messages.

Trampoline just copies the sequence of data bytes.  It doesn't know
anything about IP or ICMP datagrams.




Re: [9fans] HTTP forwarding with aux/trampoline

2009-09-26 Thread erik quanstrom
On Sat Sep 26 14:14:16 EDT 2009, aku...@mail.nanosouffle.net wrote:
> 'httpserver' is a server on a remote connection from
> where the following is run:
> 
> aux/listen1 tcp!*!80 aux/trampoline tcp!httpserver!442
> 
> where httpserver is running httpd that listens on port 442.
> All is well, until it comes time for data transfer exceeding
> 1666 bytes (images and any other file, really). Through
> port 80 on the computer running trampoline, apparently
> only 1666 bytes of data can be transferred at once, from
> httpserver. The transfer just hangs after that. Getting
> the same data from httpserver directly, yields no such
> problem.

is t possible that the path mtu is < 1500 bytes?  if
so, trampoline isn't going to forward icmp messages.

- erik



Re: [9fans] 9vx as a perfect proto environment

2009-09-26 Thread Tim Newsham

I'm using 9vx as my primary development platform, and even though it's
fantastic to have a Plan 9 environment so easily setup and integrated
to the host OS, it has its limits. For example it will crash if your
badly written program tries to read on a hanged up connection, or it
will freeze if you run a buggy program in acid with truss.


is this with the latest 9vx or the bin snapshot?  I know the
snapshot didnt ignore SIGPIPE which would cause the whole vm to
shutdown when writing to a socket that shut down.  However, that
should be fixed in the latest sources.


Mathieu


Tim Newsham
http://www.thenewsh.com/~newsham/



[9fans] HTTP forwarding with aux/trampoline

2009-09-26 Thread Akshat Kumar
'httpserver' is a server on a remote connection from
where the following is run:

aux/listen1 tcp!*!80 aux/trampoline tcp!httpserver!442

where httpserver is running httpd that listens on port 442.
All is well, until it comes time for data transfer exceeding
1666 bytes (images and any other file, really). Through
port 80 on the computer running trampoline, apparently
only 1666 bytes of data can be transferred at once, from
httpserver. The transfer just hangs after that. Getting
the same data from httpserver directly, yields no such
problem.


ak



Re: [9fans] OMAP35 OSWALD

2009-09-26 Thread ron minnich
On Sat, Sep 26, 2009 at 10:32 AM, John Floren  wrote:


> I wonder if
> they'd be willing to go big time and sell these things?

I asked them. "Everyone asks us that". They're not sure.

The zigby is an issue, they did it because the 802.11 chips are really
closed due to FCC fear of unlicensed spectrum use.

ron



Re: [9fans] OMAP35 OSWALD

2009-09-26 Thread John Floren
On Sat, Sep 26, 2009 at 12:36 PM, ron minnich  wrote:
> http://osel.oregonstate.edu/files/osel_newsletter_200905.pdf
>
> Neat stuff. It looks like something I'd buy, but it's all student
> designed, even the lexan case.
>
> ron
>

They have what looks to be a decent production process... I wonder if
they'd be willing to go big time and sell these things? I didn't see
any sign of that on the website, though
(http://beaversource.oregonstate.edu/projects/cspfl). I know my
university loves student-founded companies and even gives them office
space & a little capital to start out; wonder if OSU would spin this
out into something similar.

John
-- 
"Object-oriented design is the roman numerals of computing" -- Rob Pike



Re: [9fans] OMAP35 OSWALD

2009-09-26 Thread André Günther
I just want to point out that there is no available documentation for  
the powervr chips. There is only a driver blob for linux.


However a register specification of that chip, if available to anyone  
would be highly appreciated *hint* *hint*


Best regards,
André

On Sep 26, 2009, at 6:36 PM, ron minnich wrote:


http://osel.oregonstate.edu/files/osel_newsletter_200905.pdf

Neat stuff. It looks like something I'd buy, but it's all student
designed, even the lexan case.

ron





[9fans] iw9p wip writeups

2009-09-26 Thread erik quanstrom
reminder: the deadline is october 5.
this can't be extended.

- erik



Re: [9fans] 9vx as a perfect proto environment

2009-09-26 Thread Richard Miller
I agree - 9vx is great for experimentation, especially thanks to its
effortless access to the underlying host file system.

I've had less success using it for "real work", at least on MacOS
10.5 and 10.6 - for example running a venti server eventually
results in something like
  9vx panic: sigsegv on cpu7

[No, I don't have an 8-core macbook ...]




Re: [9fans] 9vx as a perfect proto environment

2009-09-26 Thread Mathieu L.
I've definitely seen it on linux. 
I'm using 9vx as my primary development platform, and even though it's
fantastic to have a Plan 9 environment so easily setup and integrated
to the host OS, it has its limits. For example it will crash if your
badly written program tries to read on a hanged up connection, or it
will freeze if you run a buggy program in acid with truss.

Still, it's so convenient compared to dual booting or qemu that I prefer
sticking with it. 

Cheers,
Mathieu

--- Begin Message ---
> I've had less success using it for "real work", at least on MacOS
> 10.5 and 10.6 - for example running a venti server eventually
> results in something like
>   9vx panic: sigsegv on cpu7

I've seen similar on FreeBSD, though I don't think I've see it
on Linux.  I use 9vx pretty much all the time as my terminal
and stand-alone when I'm not connected to my network.  In
those uses, a crash once or twice a day hasn't been bad enough
to make me investigate.

BLS

--- End Message ---


Re: [9fans] 9vx as a perfect proto environment

2009-09-26 Thread blstuart
> I've had less success using it for "real work", at least on MacOS
> 10.5 and 10.6 - for example running a venti server eventually
> results in something like
>   9vx panic: sigsegv on cpu7

I've seen similar on FreeBSD, though I don't think I've see it
on Linux.  I use 9vx pretty much all the time as my terminal
and stand-alone when I'm not connected to my network.  In
those uses, a crash once or twice a day hasn't been bad enough
to make me investigate.

BLS




[9fans] OMAP35 OSWALD

2009-09-26 Thread ron minnich
http://osel.oregonstate.edu/files/osel_newsletter_200905.pdf

Neat stuff. It looks like something I'd buy, but it's all student
designed, even the lexan case.

ron