LWIP

Hi, I've noticed that when connecting to the test web server via TAP, connections seem to be a bit slow. I've added some test code to "download" some data on the web server, and at most, i'm only getting around 1.5K/s (using wget). Is there something i can do to improve the connection speed, o

Re: Using the HTTP server via TAP

Hi, In looking at those scripts, that's basically what I have done. Thank you so much for your help Christian. - Peter Nguyen Jacaranda Research Group On 03/06/2010, at 10:09 PM, Christian Helmuth wrote: > Hello, > > unfortu

Re: Using the HTTP server via TAP

er, > > On Thu, Jun 03, 2010 at 02:58:40PM +0930, Peter Nguyen wrote: > > I think i might have figured out my issue. The IP address of 10.0.0.1 > > corresponds to the TAP device, which suggests that the requests are > > coming from the TAP device (which it should be i think,

Re: Using the HTTP server via TAP

starting IP address ie. the IP address of the XP VM (which is obviously not 10.0.0.1). Peter Peter Nguyen wrote: > Sven, > > OK, so now i've got 2 different mac addresses for each of the instances. > However, it seems to me that the remote ip addresses obtained by the web > s

Re: Using the HTTP server via TAP

-net nic,model=pcnet,macaddr=00:81:71:61:51:41 -net > tap,ifname=tap0,script=no,downscript=no >   > Note that in my commandline the macaddr param sticks to the -net nic param > while > in yours it sticks to the -net tap param. >   > Isn't this a nice candidate? >   &g

Re: Using the HTTP server via TAP

Sven, That is quite weird. I shall try a more recent version of qemu. Thank you so much for your help. - Peter Nguyen Jacaranda Research Group On 02/06/2010, at 10:31 PM, m...@sven-fuelster.com wrote: Hi Peter, Peter Nguyen hat am 2

Re: Using the HTTP server via TAP

c,model=pcnet,macaddr=00:81:71:61:51:41" >   > Perhaps you forgot this step? >   > If you haven't, it would be helpful if you provided a Wireshark trace taken > from > your tap interface. >   > Cheers >   > Sven >   > > Peter Nguyen

Re: Using the HTTP server via TAP

Hi Sven, > I'm not sure if I've got your setup right or not. > > You have a host operating system (guess linux) with two qemu > instances, one running Windows XP and the other running genode with > the webserver. > > Your host system also runs a dhcp server which assigns the same ip > addres

Using the HTTP server via TAP

Hi, I was just wondering in using TAP with the HTTP server (and following the instructions in the genode 10.02 documentation), i've noticed that when i have multiple connections to the server, whereby i have a windows xp virtual machine making requests to the server in addition to the host ope

Re: Thread blocking

Stefan, My apologies, the change to allocate the thread via the heap actually worked. Turns out i was changing the wrong version of the code i was using. Peter Quoting Stefan Kalkowski : > On Wednesday, 28. April 2010 12:02:18 Peter Nguyen wrote: > > Hi, > > Hi Peter, > >

Re: Thread blocking

day, 28. April 2010 12:02:18 Peter Nguyen wrote: > > Hi, > > Hi Peter, > > > > > Attached is the http_srv code under question. I think the source of the > > problem is when lwip_accept is called again after creating the thread. The > > HTTP thread does not ex

Re: Thread blocking

HTTP thread executes. I also suspect I might not have done enough to make the server truly multithreaded. Peter Quoting Christian Helmuth : > Hello Peter, > > On Wed, Apr 28, 2010 at 04:47:00PM +0930, Peter Nguyen wrote: > > Any ideas as to what's going on? > > From your

Thread blocking

Hi, In messing around a bit further with the http server code, I decided to have a go at making the HTTP server multithreaded. In this case, I wanted the web server to function such that when a HTTP request is received, a new thread is created whose purpose is to handle the HTTP request. In ot

Re: message buffer is too small

Hi, In doing some further investigating, i discovered that the message was popping as a result of using sleep_forever(). I changed the associated Msgbuf size in base/sleep.h to 64, which has resulted in the code now working. Peter Norman Feske wrote: > Hi Peter, > > Peter Ngu

message buffer is too small

Hi, In moving my sampling code to version 10.02 of genode, and running the sampling functionality, I keep getting the following message during runtime: void copy_utcb_to_msgbuf(Okl4::L4_MsgTag_t, Genode::Msgbuf_base*): receive message buffer too small msg size=2c, buf size=16 Is there a way fo

Website down

Hi, Is it just me, or is the genode website down at the moment? - Peter Nguyen Jacaranda Research Group -- Download Intel® Parallel Studio Eval Try the new software

Re: Weird build error

m 01) virtual void Genode::Signal_session_component::submit(Genode::Signal_context_capability, unsigned int): invalid signal-context capability Attached is a text file showing complete output i get, including the "no RM attachment" part. Peter Quoting Norman Feske : > Hi Peter, >

Weird build error

Hi, In using the latest genode version via OKL4 (an unmodified build), and trying to include nic_drv and the http server as part of config, I keep getting the the "no RM attachment" error. This is the output i get when i only include "nic_drv" in the config. int main(): --- create local services

Re: Rom FS

help me achieve this task as well. Peter Quoting Christian Helmuth : > Hi again, > > On Wed, Apr 14, 2010 at 01:14:49PM +0930, Peter Nguyen wrote: > > I noticed that as part of booting up Genode that the contents of the rom > > FS is printed (provided the variable i

Rom FS

Hi, I noticed that as part of booting up Genode that the contents of the rom FS is printed (provided the variable is set for enabling verbose printing of boot information). Is there a way of having access to this data in my profiling environment? Having access to this information would greatly

Experiences

Hi, I was asked to summarize my experiences with using shared memory in Genode. Apologies for the extremely late reply. My project involves implementing a profiling infrastructure, whereby i have a profiling server that coordinates the execution of profiling ie. the collection and processing o

Re: Yet another question. Associated with "Re: Shared library"

t; > On Thu, Mar 11, 2010 at 07:21:28PM +1030, Peter Nguyen wrote: > > What i meant by this is that in the client code, I obtain the > > dataspace capability, write to that memory, and print the contents of > > that memory. After this, I create other variables to store the

Re: Yet another question. Associated with "Re: Shared library"

>> So I've had a go at trying to implement a simpler case of having >> shared memory >> between two processes via adding code to the hello tutorial. I have >> done the >> following things: >> >> - I added a dataspace capability variable in the session server >> (which contains >> the dispatch

Re: Yet another question. Associated with "Re: Shared library"

Hi, > Sounds good, though I expected the clients to write sampling data into > the memory that is processed by the profiling server. More precisely, > the server allocates the shared dataspace from its RAM session and > provides the associated RAM-dataspace capability to its clients. Both > - clie

Re: Yet another question. Associated with "Re: Shared library"

Hi, > I have the feeling you're mixing two distinct matters here. The issue > Norman addressed in his email was "How to share memory buffers between > applications". That is done via dataspaces that are referenced by > dataspace capabilities (in Unix file descriptors) and could be > attached to an

Re: Yet another question. Associated with "Re: Shared library"

Norman, This makes sense. However, on my end, i think i'm going to have to do quite a bit of reconfiguring. I'm trying to integrate my profiling environment with the http server that is part of lwip. I've added code to the http server to collect samples whenever a request is received, and when

Yet another question. Associated with "Re: Shared library"

Hi, I just realized that making the library a shared object won't necessarily fix my problem. What i'm trying to do is have two genode components share data with each other, where this data is in user space. I do this with a buffer that i create in the kernel, where I obtain the physical addre

Re: Shared library

Hi Norman, I take it that this fix only applies to the latest version of genode, and not 9.11? Peter Norman Feske wrote: > Hi Peter, > > >> [init -> lwip_httpsrv_test] Starting ldso ... >> [init -> lwip_httpsrv_test] void* fwrite(): fwrite - not yet implemented >> [init -> lwip_httpsrv_test]

Re: Shared library

a dynamic binary is found. > > Greetings, > Sebastian > > On 03/03/10 05:32, Peter Nguyen wrote: > > Hi, > > > > I've tried to create a shared library for use by multiple components in > > Genode, where in the mk file for the library, i

Shared library

Hi, I've tried to create a shared library for use by multiple components in Genode, where in the mk file for the library, i have specified SHARED_LIB=yes. When i try to execute Genode, I keep getting the following message at runtime: "Dynamically linked file found, but no dynamic linker binary

Re: OKL4 build errors

Stefan, I also included libc in the mk file as well. I recall genode building if libc wasn't included, but given that i'm using the http server, libc needs to be included... Peter Quoting Stefan Kalkowski : > On Tuesday, 2. March 2010 05:30:14 Peter Nguyen wrote: > > Hi, &

OKL4 build errors

Hi, In upgrading to Genode 10.02, i'm encountering build errors when i specifically include one of three L4 header files, namely thread.h, ipc.h, and arch/thread.h. I do the #include statements within a namespace declaration like so: namespace Okl4 { extern "C" { //includes }} Every time i tr

Re: Further questions about LWIP/HTTP server

dering what the purpose of the remote_ip and local_ip variables were? Am i right in saying that remote_ip refers to the machine that performed the HTTP request? Thanks Peter Quoting Stefan Kalkowski : > On Monday, 1. March 2010 05:30:27 Peter Nguyen wrote: > > Hi, > > Hi Peter, &g

Further questions about LWIP/HTTP server

Hi, In digging to the HTTP server functionality, I noticed that with IP address, data is stored for local and remote IP addresses. I gather remote IPs refer to the machines making the requests. Does the local IP refer to the HTTP server itself?? Peter -

Re: Adding a new library

Just a point to add, i'm referring to the cc files i've written. In terms of layout, i added a folder called 'sampling' in the 'base/include' directory, and i have added another 'sampling' folder in the 'base/src/base' directory. Peter Ng

Adding a new library

Hi, I'm now trying to add my own library, and have tried adding the files as part of 'base'. Every time I try to build Genode, i keep getting messages pertaining to undefined references to functions that i have implemented. How do i go about incorporating the files i've written as part of 'bas

Re: Configuring the TAP version of the HTTP server

Peter Nguyen Jacaranda Research Group On 23/02/2010, at 7:47 PM, Christian Helmuth wrote: > Hi Peter, > > On Tue, Feb 23, 2010 at 01:40:42PM +1030, Peter Nguyen wrote: >> OK, so now i've got the server up and running, and I can use the >> local >> web browser to ac

Re: Configuring the TAP version of the HTTP server

other qemu instances? Peter Christian Helmuth wrote: > Hello Peter, > > On Mon, Feb 22, 2010 at 11:29:38AM +1030, Peter Nguyen wrote: > >> Is anyone able to give me some pointers on how to set up the TAP version >> of the HTTP server? My knowledge on setting up suc

Configuring the TAP version of the HTTP server

Hi, Is anyone able to give me some pointers on how to set up the TAP version of the HTTP server? My knowledge on setting up such things is not that good. More specifically, I'm unsure as to what do for setting up the DHCP server step stated in the following link: http://genode.org/documentation

Re: Building lwip

Hi Christian, Turns out that the errors was on my end. So now that everything builds, I was wondering how to get this server running natively. I'm trying to run the simple web server on an ia32 machine, but I keep getting "sending packet failed" messages on serial output. The other message I k

Re: Building lwip

Just a additional note: I used "make prepare" on the libports directory before including it in the build.conf file, and running make in the build directory. Peter Nguyen wrote: > Hi, > > I'm trying to build the lwip test so that I can make a start on > experime

Building lwip

Hi, I'm trying to build the lwip test so that I can make a start on experimentation. However, I keep on getting build errors. To build this package, I included the libports package, and also the libc package. However, I keep getting errors about how size_t hasn't been declared in scope. I also

Re: Floating point printing

Hi, So i've encountered problems with trying to use stdio.h. After adding libc to the build directory and the target.mk file, i keep getting errors with some of the libc header files relating to variables like va_list. On face value, it seems that libc and C++ don't like to play with each

Floating point printing

Hi, I noticed that there isn't any support for printing floating point numbers. I was wondering whether someone has a patch of some sort that provides this functionality, even at a basic level. Peter -- The Planet: d

Re: Thread creation

ous builds of OKL4, L4_Myself() could be used within a function which would return the ID of the thread that was executing when the given function executes. Peter Quoting Stefan Kalkowski : > Hi Peter, > > On Thursday, 28. January 2010 13:00:01 Peter Nguyen wrote: > > Hi, > >

Re: Interaction with L4

Whoops, my mistake. The buffer is actually being mapped, there are some things I'm doing wrong at me end. Apologies. Peter Quoting Peter Nguyen : > > Is 'sampbuffer' declared as a local variable? If yes, this would > > explain the problem. When the pro

Re: Interaction with L4

> Is 'sampbuffer' declared as a local variable? If yes, this would > explain the problem. When the program leaves the scope where > 'sampbuffer' is declared, the destructor of 'Io_mem_connection' > gets executed. By default, this destructor closes the session such > that the session's dataspace ge

Re: Interaction with L4

Before I get onto my next question, I would like to thank you Stefan and Norman for all the help you have given me. I hope i haven't been annoying you with all of these questions. > the best way to go for mapping a predefined physical memory area > into a Genode process is using core's IO_MEM serv

Further response

Hi, In doing some more investigating, for some reason, that message seems to pop up when i instantiate a thread. Before this thread, i instantiate 3 threads, which execute fine, yet when i instantiate this 4th thread, it doesn't work. Furthermore, when i only instantiate this 4th thread (ie. comme

Thread creation

Hi, In also trying to create a thread, there are some instances when i would like to pass some parameters to a thread to establish a starting state for a thread. To do this, the class i write, which inherits from Thread contains some instance variables which get initialised in the class's construc

Building

Hi, In trying to compile some code, i keep getting the following errors when i try to instantiate a genode thread: undefined reference to `operator new[](unsigned int)' Can I not use "new" to allocate memory? If not, what is the proper way of doing this via Genode? Peter PS. I noticed upon fur

additional question from "memcpy, strlen etc."

As an addition to the previous post by me, I have some pre-existing C code that I want to use in a Genode server I have created, and I don't really want to change this code. Currently, i'm not able to utilize functions like printf, memcpy etc in the C code i've written. What header files can I incl

memcpy, strlen etc.

Hi, Is it at all possible to make use of functions like malloc, memcpy, strlen, and other "standard" C functions in Genode apps? Peter -- Throughout its 18-year history, RSA Conference consistently attracts the world's b

Re: Thread IDs

I was more wondering how to get the numerical ID of the thread after i've created one. Is it possible to obtain that at all? Peter On 19/01/2010, at 8:06 PM, Stefan Kalkowski wrote: > Hi Peter, > > On Tuesday, 19. January 2010 06:30:22 Peter Nguyen wrote: >> Hi, >>

Re: Interaction with L4

Norman, > I know too little about the structure of your profiling environment > to give a clear advice on how to integrate it with Genode. The answer > depends on the relationship between the user-level portion of your > profiling environment and the other processes. If there is no > interaction (

Re: Interaction with L4

Norman, To clarify what i'm doing, I've implemented a profiling environment that runs on top of L4. More specifically, this profiling environment has adaptive properties, where the profiling environment can react whenever certain events occur. Currently, I've implemented this on top of Iguana, but

Thread IDs

Hi, So I've done some more messing around with genode (running on top of OKL4), more specifically creating some threads, and testing the functionality in general. I'm wondering how i can go about obtaining the thread's ID and printing it out. I've noticed that there are functions that are within t

Build errors

Hi, In running genode with the "hello" app, I keep getting the following message: [init] starting hello_server with quota=262144 [init] using unique child name "hello_server" [init] Warning: Could not open file "hello_server" at ROM service. I also get the same thing with the hello client. Does

Re: Interaction with L4

Iguana trace buffer, given you have suggested that Genode primitives should be used. Thanks - Peter Nguyen Jacaranda Research Group On 11/01/2010, at 7:02 PM, Norman Feske wrote: > Hi Peter, > >> I'm trying to port some code

Interaction with L4

Hi, I'm trying to port some code that I originally implemented in Iguana. This functionality pertains to profiling functionality. In my current setup (ie. with Iguana), I added an L4 system call (OKL4) to start and stop profiling. I'm wondering whether it's possible at all to use OKL4 functionalit

Re: Further questions

of porting, that would be great!! ----- Peter Nguyen Jacaranda Research Group On 07/01/2010, at 5:58 AM, Norman Feske wrote: > Hi Peter, > >> I have another question about Genode. More specifically, I was >> wondering whether &

Further questions

mo'. You can either specify this file as filename for the 'config' module entry in 'weaver.xml' or copy it to your '/bin/' directory (and of course rename it to 'config'). This bit was missing in the Wiki. So I added it to the Wiki page. Thank you for pointi

Broken assertion

Hi, In the wiki describing how to build Genode on OKL4, does the bug alert refer to following message: An error occurred: [Errno 2] No such file or directory: 'config'? I've followed the build instructions, and i've changed the value as suggested as the quick fix, but I still get this error. As

Cannot run genode

Hi, I'm trying to boot genode on OKL4 natively. I followed the instructions for building genode via the following link: http://genode.org/community/wiki/revisions/GenodeOnOKL4.6/?searchterm=build I've tried building version 9.05, but when i try to boot it up, i keep getting a grub error (Error 28