l4-hackers October 2006

l4-hackers@os.inf.tu-dresden.de

20 participants
20 discussions

IPC from L4Linux
by Daniel Vandersee 02 Nov '06

02 Nov '06

Hi there, when I place an ipc call from a l4linux task to an l4 server, I always get a task number, which, I think, is not assigned. Is for every l4linux task a new l4 task is generated/reserved? With kind regards, Daniel

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Re: FW: XGenOS / Fiasco
by William DUCK 28 Oct '06

28 Oct '06

On Sunday 22 October 2006 21:56, you wrote: > Hello, > > I must confess your mail came as a big surprise, since nobody seemed to > care about the XGeNOS project for quite some time, but of course the > surprise is a pleasing one ;-) > > Considering your thougths and ideas below, I'll try to figure out as > much as possible for the moment ... I've been thinking over some of > them, but it will take me some time to get through it all ... > > > I would want to … [View More]

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DROPS L4Env I/O client API not applicable for C++ programs
by Marcel Winandy 24 Oct '06

24 Oct '06

Hello! I have just encountered a problem with the L4Env I/O client API libio.h if you try to use this in a C++ program. You get a syntax error because there is a variable having the name "class". But that is a C++ keyword. In l4/include/x86/l4/generic_io/types.h: **************************************** struct l4io_drv: "unsigned class:8;" struct l4io_pci_dev: "unsigned long class;" In l4/include/x86/l4/generic_io/libio.h: **************************************** "int … [View More]

2 1

PowerPC Port
by William DUCK 20 Oct '06

20 Oct '06

Hello, DId/Will someone port Fiasco to Power Architecture ? http://www.power.org/members/developers/specs/PAPR_Version_2.0_28August06.p… http://www.power.org/resources/downloads/PowerISA_203.Public.pdf Best Regards, Will

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Exokernel / Device drivers
by William DUCK 20 Oct '06

20 Oct '06

Hello, The more I go forward, the more questions come to me : http://lists.tunes.org/archives/tunes/1995-June/000617.html the exokernel paper says somewhere that all the exokernel does is to securely multiplex the cpu (that's time) and memory (that's space) ressources. that's what you said you want from a good os in your `why ...' paper. and some months ago, i observed that the os may be viewed as a device driver for these two because that's what device drivers should do: … [View More]

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about L4Linux supporting for 312MHz Intel XScale Bulverde (PXA270) processor
by Wenbin Zhang 19 Oct '06

19 Oct '06

Hello, I notice in the L4Linux website, you mentioned that The ARM port currently runs on the following platforms: * PLEB The University of New South Wales' embedded hardware * Supports both PLEB1 (SA1100) and PLEB2 (XScale PXA255) * TuxScreen - StrongARM based phone platform. * Intel's IDXP450 Xscale development platform (XScale IXP450). Now I have a Motorola E680i cell phone, it is using 312MHz Intel XScale Bulverde (PXA270) processor, which is using the … [View More]

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Open /dev/console problem with the new l4linux-2.6.18 on Xscale
by WanKeun Jo 18 Oct '06

18 Oct '06

Hi, I first had tried to install l4linux-2.6.17 with fiasco kernel on Xscale. I got error which I already posted before on boot process. That was due to bugs in fiasco kernel, by Adam Lackorzynski's advice. so I updated Fiasco kernel & l4linux-2.6.18 from CVS. Again, I tried to boot, but failed with the following warning message: "Warning: Unable to open an initial console" After loading ramdisk on boot process, the system fail to look up the /dev/console file in ramdisk. So like … [View More]

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Cannot access to CVS
by ernesto bascon 17 Oct '06

17 Oct '06

I get the following errors trying to getting Fiasco from your remote CVS: eto@eto ~/l4/fiasco $ cvs -z3 -d :pserver:guest@os.inf.tu-dresden.de:/home/remote-cvs checkout l4linux-2.6 cvs checkout: Updating l4linux-2.6 cvs checkout: failed to create lock directory for `/home/remote-cvs/l4linux-2.6' (/home/remote-cvs/l4linux-2.6/#cvs.lock): Permission denied cvs checkout: failed to obtain dir lock in repository `/home/remote-cvs/l4linux-2.6' cvs [checkout aborted]: read lock failed - giving up Any ideas?

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How does Fiasco implement hard real-time function?
by chenggh 17 Oct '06

17 Oct '06

Hi: I want to know how Fiasco implments the hard real-time function. Can you recommend some papers or souce code to me? Thank you. chenggh

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Fiasco.image with debugging information
by 김광식 15 Oct '06

15 Oct '06

   Hi,    I work with fiasco kernel in arm platform.    I want to debug fiasco kernel with debugging tool.    But, I need to get fiasco kernel object with debuging information.    First I put this flags in Makefile.   ----------------------------------------------------  vi kernel/fiasco/build/Makefile ...  CFLAGS  &… [View More]

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l4-hackers October 2006