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con-ux bug?
by Wei Shen 12 May '06

12 May '06

Hi, I run con-ux with: ./fiasco -G 800x600@16 -m 128 -l names -l dm_phys -l con-ux The output is: >*con | Using fast memcpy. >*con | Character size is 8x14, font has 256 characters >*con | VESA reports 800x600@16 1600bpl (0000) [4096kB] >*con | Color mapping: red=11:5 green=5:6 blue=0:5 res=0:0 > ... .... >*con | Mapping I/O UX video mem c0000000 => 00400000+000000 [4096kB] >*con | Using MMXEXT for colorspace transform >KERNEL: 7.2 (tcb=201c1000) killed: >Unhandled trap >EAX 00000025 EBX 0000122b ECX 0000000a EDX 00000000 >ESI 00000320 EDI 00b0d73c EBP 012ffda8 ESP 012ffda4 >EIP 00b0dc7f EFLAGS 00200206 >CS 0002 SS 007b DS 007b ES 007b FS 0000 GS 0000 >trap 13 (General Protection), error 00000402, from user mode >(internal event regarding IDT gate descriptor no. 0x80) The backtrace: >main // l4con/server/src/main.c >do_switch >vc_clear // vc.c >vc_fill >pslim_fill // pslim.c >sw_fill In "sw_fill", "vc->do_drty" equals 11589436, which seems invalid. Maybe, it should be NULL? Maybe, we should add "new->do_drty = fg_do_drty;" to line 402 in main.c? Regards, Wei

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L4Linux freezes
by Vilmos Nebehaj 12 May '06

12 May '06

Hi, I've compiled and installed Fiasco and L4Linux-2.6 and it works, except that when I start a simple test program that creates lots of pthreads, the whole L4Linux task freezes (simply pthread_create() a thousand threads after each other is enough to reproduce the problem). I can ping the machine from another host, but can't login through ssh, the console becomes totally unresponsive, etc. At the same time, the following message appears in the log: simplets| ERROR: task #23 doesn't match: client 10.03, owner 0.0 l4lx | l4ts_create_task(): failed (server=7.00, ret=-3, exc=0) Other L4 tasks continue running uncluttered. Do you have an idea why this happens? Is this a bug in Fiasco, or is it a misconfiguration problem? -vili

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Re: TCP/IP between L4Linux and L4 task
by Bjoern Doebel 11 May '06

11 May '06

2 1

Re: TCP/IP between L4Linux and L4 task
by Stefan Scheler 11 May '06

11 May '06

Hi, > Sure. Both, L4Linux and your app need to be compiled without native > hardware support. Instead, use a software network switch like the one > provided by l4/pkg/ore. L4Linux needs to compiled with the ORe driver > and your app needs to send/receive packets through ORe. Well, sounds good. So I'm currently trying to integrate the latest e1000 driver (v7.0.33) into ORe as my e1000 adapter is not supported by the current one but encountered the following problem: The updated driver wants to alloc some pages using alloc_page(). This results in a undefined reference to "_alloc_pages" when linking ore: ==> Linking ore LD_PRELOAD=/home/sts/L4_full/l4/tool/gendep/libgendep.so GENDEP_TARGET=ore GENDEP_BINARY=ld gcc -o ore ../../../../../lib/x86_586/crt0.o main.o openclose.o clients.o recv.o send.o netdevice.o irq_handling.o rxtx_string.o debug.o util.o events.o checksum.o xmit_lock.o worker.o local_deliver.o dummy_dsi.o -Wl,--whole-archive ../../../server/lib/net/OBJ-x86_586-l4v2/liblinuxnetdrv.a -Wl,--no-whole-archive -Ttext=0x01800000 -L../../../server/lib/linuxemul/OBJ-x86_586-l4v2 -L../../../../../lib/x86_586/l4v2 -L/home/drops/lib/x86_586/l4v2 -L../../../../../lib/x86_586 -L/home/drops/lib/x86_586 -L../../../../../lib -L/home/drops/lib -T../../../../../lib/x86_586/main_stat.ld -llinuxemul -levents -llinuxnetdrv -ldde_linux -lomega0 -lio -ll4rm -lore_server-worker -lore_server -lore_notify -llist_alloc -lparsecmdline /usr/lib/gcc/i686-pc-linux-gnu/3.4.6/libgcc.a -static -lgeneric_ts -ll4env -ll4rm -ldm_generic -ldm_mem -lthread -lsemaphore -llogserver_capsule -lnames -ll4util_root -ll4util -lsigma0 -lroot.o -ll4env -ll4env_err -ll4rm -ldm_generic -ldm_mem -lthread -lslab -ll4sys -nostdlib -Wl,--nostdlib -luc_c -luclibc_support -u mmap_anon -lc_be_simple_mem -lc_be_mmap -lc_be_mmap_util -lc_be_l4env_start_stop -lc_be_minimal_log_io -luc_be_simple_sleep -ll4env -llogserver_capsule -ll4rm -ldm_generic -ldm_mem -lthread -lgeneric_ts -luc_c /usr/lib/gcc/i686-pc-linux-gnu/3.4.6/libgcc.a -luc_c -ll4sys -Ttext=0x01800000 -Wl,-gc-sections -Wl,--warn-common ../../../server/lib/net/OBJ-x86_586-l4v2/liblinuxnetdrv.a(e1000_main.o): In function `e1000_alloc_rx_buffers_ps': /home/sts/L4_full/l4/pkg/ore/server/lib/net/OBJ-x86_586-l4v2/../../../../server/include/linux_headers/linux/mm.h:454: undefined reference to `_alloc_pages' collect2: ld returned 1 exit status I suppose I have to link something else? Any hints appreciated. BTW is ORe an acronym for something? What does it stand for? Stefan

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[Fwd: Re: TCP/IP between L4Linux and L4 task]
by Bjoern Doebel 11 May '06

11 May '06

3 4

Re: Fiasco hello world problem..
by raghavendra pai 11 May '06

11 May '06

---------------------------------------------------------------------- Message: 1 Date: Mon, 8 May 2006 13:48:25 +0200 From: Adam Lackorzynski <adam(a)os.inf.tu-dresden.de> Subject: Re: Fiasco hello world problem.. To: l4-hackers(a)os.inf.tu-dresden.de Message-ID: <20060508114825.GI1784(a)os.inf.tu-dresden.de> Content-Type: text/plain; charset=iso-8859-1 On Mon May 08, 2006 at 15:04:27 +0530, raghavendra pai wrote: > I was trying to run hello world program in Fiasco . > I downloaded the hello world from the CVS and did the steps as given in > the site. > > http://os.inf.tu-dresden.de/fiasco/use.html > > but I was trying to boot using my pc the hello world program . > the grub entry in grub.conf file was > > title hello world > module /fiasco-boot/main -nokdb > module /fiasco-boot/sigma0 > module /fiasco-boot/roottask > module /fiasco-boot/hello > > When i booted it the following was displayed > > Booting "Hello World" > module /fiasco/main -nokdb > > Error No:20 Multiboot kernel must be loaded before modules.. > > What is the cause of error.. >You forgot 'kernel bootstrap', i.e. the grub entry needs to look like: >title hello world > kernel /fiasco-boot/bootstrap > module /fiasco-boot/main -nokdb > module /fiasco-boot/sigma0 > module /fiasco-boot/roottask > module /fiasco-boot/hello I tried to locate the bootstrap file and i got this much entry /root/l4/l4/kernel/fiasco/build/.bootstrap.cc.d /root/l4/l4/kernel/fiasco/build/bootstrap.o /root/l4/l4/kernel/fiasco/src/boot/amd64/bootstrap.cc /root/l4/l4/kernel/fiasco/src/boot/amd64/bootstrap.ld /root/l4/l4/kernel/fiasco/src/boot/ia32/bootstrap.cc /root/l4/l4/kernel/fiasco/src/boot/ia32/bootstrap.ld /root/l4/l4/kernel/fiasco/src/kern/arm/bootstrap.cpp /root/l4/l4/kernel/fiasco/src/test/boottask/bootstrap-boottask.cc /root/l4/l4/tool/dice/bootstrap /root/l4/my/build/dir/.bootstrap.cc.d /root/l4/my/build/dir/bootstrap.o which of the one is to be copied into /fiasco-boot folder . I tried using /root/l4/l4/tool/dice/bootstrap but it tells no file is there Wht is the problem ? Am i entered the wrong Regards Pai

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RE: L4Env and L4 version X.2.
by Volkmar Uhlig 11 May '06

11 May '06

> -----Original Message----- > From: Adam Lackorzynski > Sent: Wednesday, May 10, 2006 7:14 PM > To: l4-hackers(a)os.inf.tu-dresden.de > Subject: Re: L4Env and L4 version X.2. > > On Thu May 04, 2006 at 18:26:56 -0500, sethb wrote: > > Is there ongoing work to port L4Env to L4 version X.2? > > None that I know of. > > > How much work would it be? > > Quite a bit, I guess. If you have an IDL compiler you can > then go through every module and port it over, probably > redesigning some parts of it. The X.2 interface was designed such that a mapping of V2 -> X.2 is possible via wrapper functions. The fixed thread/task model can be emulated and ex-regs etc can be mapped as well. Main problem is the IDL compiler; not sure if Dice supports X.2... Ron? - Volkmar

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L4Env and L4 version X.2.
by sethb 11 May '06

11 May '06

Hello Everyone, Is there ongoing work to port L4Env to L4 version X.2? How much work would it be? Thanks, Seth

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The question about flexpage
by 강후영 11 May '06

11 May '06

HI! I have some questions about flexpage. What i want to do is to share memory between L4linux "A" and L4linux "B". So i tried to use flexpage method but this method is not available. Another tests sharing memory between L4linux "A" and L4 server are good work with flexpage. Is it possible to share memory between between L4linux "A" and L4linux "B"? best regards.

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TCP/IP between L4Linux and L4 task
by Stefan Scheler 10 May '06

10 May '06

Hello, is it possible to connect from an L4Linux process to a FLIPS-based L4 task using TCP/IP? And if so, how? Thanks, Stefan

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