l4-hackers April 2009

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

19 participants
40 discussions

Back to UTCB IPC
by Marc CHALAND 11 Oct '09

11 Oct '09

Hi, I am back with my problem with UTCB IPC. To sum up the context : I use pure l4env applications. Here is the scenario between my server and my client : 1. client makes an UTCB IPC to manager. Manager does an l4rm_area_reserve, creates a rcv_fpage, creates worker and sends back worker thread id to client. 2. client allocates memory and associated flexpage and sends it to server. 3. UTCB IPC is sent to worker with 3 parameters : - on client side : utcb->values=0xbff00200: arg1=0x2 arg2=… [View More]

4 9

time problem
by fang zhengshu 19 May '09

19 May '09

hi all, I write a simple test example about time function.but when I use the "time()" function,the code can not be compiled correctly. I just have include the <time.h>,any question? the error I put following: l4@192:~/tudos/l4/pkg/test_fifo/examples/client$ make PWD=/home/l4/tudos/build/pkg/test_fifo/examples/client/OBJ-x86_586-l4v2 make -C /home/l4/tudos/build/pkg/test_fifo/examples/client/OBJ-x86_586-l4v2 -f Makefile make[1]: Entering directory `/home/l4/tudos/build/pkg/test_fifo/… [View More]examples/client/OBJ-x86_586-l4v2' ... Compiling main.o LD_PRELOAD=/home/l4/tudos/build/tool/gendep/libgendep.so GENDEP_TARGET=main.o GENDEP_BINARY=cc1 gcc -m32 -c -DUSE_UCLIBC=y -DRAM_BASE=0x0 -DSYSTEM_x86_586_l4v2 -DARCH_x86 -DCPUTYPE_586 -DL4API_l4v2 -DCONFIG_L4_CALL_SYSCALLS -DCONFIG_L4_ABS_SYSCALLS -I/home/l4/tudos/build/pkg/test_fifo/idl/OBJ-x86-l4v2 -I/home/l4/tudos/build/include/x86/l4v2 -I/home/l4/tudos/build/include/l4v2 -I/home/l4/tudos/build/include/x86 -I/home/l4/tudos/build/include -I/home/l4/tudos/l4/../dice/include -I/home/drops/include/x86/l4v2 -I/home/drops/include/l4v2 -I/home/drops/include/x86 -I/home/drops/include -nostdinc -I/home/l4/tudos/build/include/x86/uclibc -I/home/l4/tudos/build/include/uclibc -I/home/l4/tudos/build/include/uclibc++ -I/home/drops/include/x86/uclibc -I/home/drops/include/uclibc -I/home/drops/include/uclibc++ -I/usr/lib/gcc/i486-linux-gnu/4.2.4/include -I/usr/lib/gcc/i486-linux-gnu/4.2.4/include-fixed -gstabs+ -g -O2 -fno-strict-aliasing -march=i586 -Wall -Wstrict-prototypes -Wmissing-prototypes -Wmissing-declarations -fno-common -fno-stack-protector /home/l4/tudos/l4/pkg/test_fifo/examples/client/main.c -o main.o ==> Linking test_fifo-client LD_PRELOAD=/home/l4/tudos/build/tool/gendep/libgendep.so GENDEP_TARGET=test_fifo-client GENDEP_BINARY=ld GENDEP_BINARY_ALT1=ld ld -m elf_i386 -o test_fifo-client /home/l4/tudos/build/lib/x86_586/crt0.o main.o test-client.o -Ttext=0x1100000 --hash-style=sysv -L/home/l4/tudos/build/lib/x86_586/l4v2 -L/home/l4/tudos/build/lib/x86_586 -L/home/l4/tudos/build/lib -L/home/drops/lib/x86_586/l4v2 -L/home/drops/lib/x86_586 -L/home/drops/lib -T/home/l4/tudos/build/lib/x86_586/main_stat.ld -static -lgeneric_ts -ll4env -ll4rm -ldm_generic -ldm_mem -lthread -lsemaphore -llogserver_capsule -lnames -ll4util_root -ll4util -lsigma0 -lroot -ll4env -ll4env_err -ll4rm -ldm_generic -ldm_mem -lthread -lslab -ll4sys -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/i486-linux-gnu/4.2.4/libgcc.a -luc_c -ll4sys -Ttext=0x1100000 --warn-common -gc-sections main.o: In function `main': /home/l4/tudos/l4/pkg/test_fifo/examples/client/main.c:36: undefined reference to `time' /home/l4/tudos/l4/pkg/test_fifo/examples/client/main.c:40: undefined reference to `time' /home/l4/tudos/l4/pkg/test_fifo/examples/client/main.c:36: undefined reference to `time' make[1]: *** [test_fifo-client] Error 1 make[1]: Leaving directory `/home/l4/tudos/build/pkg/test_fifo/examples/client/OBJ-x86_586-l4v2' make: *** [/home/l4/tudos/build/pkg/test_fifo/examples/client/OBJ-x86_586-l4v2] Error 2 I have search the same error in l4-hackers ,someone suggest use rtc server,I think it's a good idea.but I have found that the time() function in time.h,why the error will happen? The reason I just include time.h? Thank you! -- fang, [View Less]

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Warning from ORe stub driver
by Alexander Valitov 03 May '09

03 May '09

Hi, When I use L4Linux ORe stub driver it constantly prints these warnings: l4lx | eth0: buffer too small (1) l4lx | eth0: buffer too small (1) l4lx | eth0: buffer too small (1) What does it mean? How can I fix it? Best Regards, Alexander Valitov -- View this message in context: http://www.nabble.com/Warning-from-ORe-stub-driver-tp22827840p22827840.html Sent from the L4 mailing list archive at Nabble.com.

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Re: Do L4 Fiasco microkernel support multicore processor?
by Neohtm 03 May '09

03 May '09

> > > > Hi, > > On Wed Apr 22, 2009 at 11:40:31 +0800, Neohtm wrote: > > I would like to know whether the Fiasco microkernel is able to run on > > multicore processor such as Intel Core 2 Duo or Quad Core??? > > I want to try to compile the Fiasco + DOpE + L4Linux to run on it. > > >It will run there (albeit only use one CPU in the current version). So, Fiasco is able to detect the multicore platform and use the first core (CPU0) ? In that case, is … [View More]

2 1

USB mouse error
by Neohtm 29 Apr '09

29 Apr '09

Hi all, I tried to run the tudos-demo-cd.iso with qemu 'qemu -m 256 -cdrom tudos-demo-cd.iso -usbdevice mouse' and it's running perfectly with the usb mouse and keyboard. but when i tried on the one i'm compiled. the mouse and keyboard not functioning at all and returns a kernel panic. Please help..... Regards, neohtm Below are the output of the error. Welcome to Fiasco(ia32)! DD-L4(v2)/ia32 microkernel (C) 1998-2009 TU Dresden Rev: r438 compiled with gcc 4.3.2 for Intel Pentium [] … [View More]Performance-critical config option(s) detected: CONFIG_NDEBUG is off CONFIG_NO_FRAME_PTR is off Enabling special fully nested mode for PIC Using the PIT (i8254) on IRQ 0 for scheduling SERIAL ESC: allocated IRQ 4 for serial uart SERIAL ESC: allocated IRQ 4 for serial uart Not using serial hack in slow timer handler. Absolute KIP Syscalls using: Sysenter CPU: GenuineIntel (6:3:3:0) Model: Pentium II (Klamath) at 1795 MHz 32 KB L1 I Cache (8-way associative, 64 bytes per line) 32 KB L1 D Cache (8-way associative, 64 bytes per line) 2048 KB L2 U Cache (8-way associative, 64 bytes per line) Freeing init code/data: 24576 bytes (6 pages) Calibrating timer loop... done. SIGMA0: Hello! KIP @ 1000 Found Fiasco: KIP syscalls: yes allocated 4KB for maintenance structures Roottask. Command line found: "(cd)/boot/l4/l4env/roottask task modname "loader" allow_cli task modname "bmodfs" attached 5 modules" 261695kB ( 255MB) total RAM (reported by bootloader) 234760kB ( 230MB) received RAM from Sigma0 34212kB ( 34MB) reserved RAM for RMGR Received I/O ports 0000-ffff Attached irqs = [ <!0> 1 <!2> 3 <!4> 5 6 7 8 9 A B C D E F 10 11 ] Roottask: Parsing command line config. configured task 0x00 (loader): vm_offs:0 irq:3ffff lmcp:ffff allow_cli:1 mcp:ff prio:10 small:ff mods:0 configured task 0x00 (bmodfs): vm_offs:0 irq:3ffff lmcp:ffff allow_cli:0 mcp:ff prio:10 small:ff mods:5 Roottask: Loading 17 modules. #05: loading "(cd)/boot/l4/l4env/events" from [0612e000-0616fe99] to [01540000-01549190][0154a000-0155f590] entry at 0005f374 via trampoline page code symbols at [0eb74000-0eb76000] (8kB), lines at [0eb6d000-0eb74000] (28kB) #06: loading "(cd)/boot/l4/l4env/names --events" from [06170000-061b1c12] to [002d0000-002d6a37][002d7000-002e2000] entry at 0006037c via trampoline page code symbols at [0eb6b000-0eb6d000] (8kB), lines at [0eb65000-0eb6b000] (24kB) #07: loading "(cd)/boot/l4/l4env/log" from [061b2000-061efd07] to [00400000-00406eca][00407000-00439808] entry at 00061370 via trampoline page code symbols at [0eb63000-0eb65000] (8kB), lines at [0eb5d000-0eb63000] (24kB) #08: loading "(cd)/boot/l4/l4env/dm_phys --isa=0x00800000" from [061f0000-0628a8b4] to [01500000-01513cb7][01514000-0151e000] entry at 00062384 via trampoline page code symbols at [0eb58000-0eb5d000] (20kB), lines at [0eb4a000-0eb58000] (56kB) #09: loading "(cd)/boot/l4/l4env/simple_ts -t 300" from [0628b000-062d8310] to [01400000-01408dea][01409000-014185e8] entry at 0006337c via trampoline page code symbols at [0eb48000-0eb4a000] (8kB), lines at [0eb40000-0eb48000] (32kB) #0a: loading "(cd)/boot/l4/l4env/rtc" from [062d9000-06308a5c] to [01080000-010845c0][01085000-0108a000] entry at 00064370 via trampoline page code symbols at [0eb3e000-0eb40000] (8kB), lines at [0eb39000-0eb3e000] (20kB) #0b: loading "(cd)/boot/l4/l4env/l4io" from [06309000-0654a391] to [00c20000-00c45315][00c46000-00cb4000] entry at 00066370 via trampoline page code symbols at [0eae3000-0eb39000] (344kB), lines at [0eac9000-0eae3000] (104kB) #0c: loading "(cd)/boot/l4/l4env/l4dope" from [0654b000-066c2384] to [01b00000-01b45ef1][01b46000-01b8b000] entry at 00067374 via trampoline page code symbols at [0eabb000-0eac9000] (56kB), lines at [0ea8d000-0eabb000] (184kB) #0d: loading "(cd)/boot/l4/usb/usbcore" from [066c3000-068faac1] to [008e0000-0092600d][00927000-0094c000] entry at 00068374 via trampoline page code symbols at [0ea81000-0ea8d000] (48kB), lines at [0ea4b000-0ea81000] (216kB) #0e: loading "(cd)/boot/l4/usb/usbhid" from [068fb000-06aa0604] to [01900000-0193e269][0193f000-01966000] entry at 00069370 via trampoline page code symbols at [0ea42000-0ea4b000] (36kB), lines at [0ea17000-0ea42000] (172kB) #0f: loading "(cd)/boot/l4/l4env/bmodfs" from [06aa1000-06b48f8d] to [01220000-01238689][01239000-01250000] passing module (cd)/boot/l4/cfg/l4linux26.cfg [ 06b49000-06b49165 ] passing module (cd)/boot/l4/l4env/libloader.s.so [ 06b4a000-06be8f11 ] passing module (cd)/boot/l4/l4env/libld-l4.s.so [ 06be9000-06c62219 ] passing module (cd)/boot/l4/l4linux/vmlinuz [ 06c63000-07019183 ] passing module (cd)/boot/l4/l4linux/drops.rd [ 0701a000-0801a000 ] entry at 0006a46c via trampoline page code symbols at [0ea12000-0ea17000] (20kB), lines at [0e9ff000-0ea12000] (76kB) #10: loading "(cd)/boot/l4/l4env/loader --fprov=BMODFS l4linux26.cfg" from [0801a000-080f8b6d] to [01300000-013291c9][0132a000-01349000] entry at 0006b390 via trampoline page code symbols at [0e9f8000-0e9ff000] (28kB), lines at [0e9de000-0e9f8000] (104kB) ROOT: Sending ports 0070-0070 to task #0a ROOT: Sending ports 0080-0080 to task #0a ROOT: Sending ports 0071-0071 to task #0a names | Starting thread listening for `exit' events rtc | Date:29.04.2009 Time:07:33:01 simplets| Configured for 300 tasks. loader | Can't map tbuf status page usbcore | main(): DDE USB CORE initiaizing: usbcore | main(): Initializing DDE base system. io | Using platform configuration 'x86' ROOT: Sending ports 0cfb-0cfb to task #0b ROOT: Sending ports 0cf8-0cfb to task #0b ROOT: Sending ports 0cfe-0cff to task #0b io | PCI: Using configuration type 1 io | PCI: Probing PCI hardware io | PCI: Probing PCI hardware (bus 00) ROOT: Sending ports 0cfc-0cff to task #0b io | PCI: PIIX3: Enabling Passive Release on 00:01.0 io | Limiting direct PCI/PCI transfers. io | Activating ISA DMA hang workarounds. io | 00000000-ffffffff : PCI mem io | f0000000-f1ffffff : Cirrus Logic GD 5446 io | f2000000-f2000fff : Cirrus Logic GD 5446 io | 0000-ffff : PCI IO io | 0cf8-0cff : PCI conf1 io | b000-b03f : Intel Corporation 82371AB/EB/MB PIIX4 ACPI io | b100-b11f : Intel Corporation 82371AB/EB/MB PIIX4 ACPI io | c000-c00f : Intel Corporation 82371SB PIIX3 IDE [Natoma/Triton II] io | c020-c03f : Intel Corporation 82371SB PIIX3 USB [Natoma/Triton II] io | c100-c1ff : Realtek Semiconductor Co., Ltd. RTL-8029(AS) bmodfs | Passed the following modules: bmodfs | module "(cd)/boot/l4/cfg/l4linux26.cfg" (1kB) bmodfs | module "(cd)/boot/l4/l4env/libloader.s.so" (636kB) bmodfs | module "(cd)/boot/l4/l4env/libld-l4.s.so" (485kB) bmodfs | module "(cd)/boot/l4/l4linux/vmlinuz" (3801kB) bmodfs | module "(cd)/boot/l4/l4linux/drops.rd" (16384kB) loader | sleeping for 1000 ms io | Available IRQs=[ <!0> 1 <!2> 3 <!4> 5 6 7 8 9 a b c d e f 10 11 ] l4dope | L4INPUT native mode activated l4dope | L4INPUT: !!! W A R N I N G !!! l4dope | L4INPUT: Please, do not use Fiasco's "-esc" with L4INPUT. l4dope | L4INPUT: !!! W A R N I N G !!! ROOT: Sending ports 0060-006f to task #0b l4dope | Failed to disable AUX port, but continuing anyway... Is this a SiS? l4dope | If AUX port is really absent please use the 'i8042.noaux' option. l4dope | serio: i8042 KBD port at 0x60,0x64 irq 1 l4dope | input: AT Raw Set 2 keyboard on isa0060/serio0 l4dope | input: PC Speaker l4dope | input: L4 input event injector l4dope | L4 input event injector: IRQ handler up l4dope | connect "AT Raw Set 2 keyboard", isa0060/serio0/input0 l4dope | connect "PC Speaker", isa0061/input0 l4dope | connect "L4 input event injector", l4/sys l4dope | SharedMem(alloc): hl.raw=100000, id=44, size=800 l4dope | SharedMem(get_adr): address = 0x5000 l4dope | SharedMem(alloc): hl.raw=100000, id=45, size=800 l4dope | SharedMem(get_adr): address = 0x6000 l4dope | SharedMem(alloc): hl.raw=100000, id=46, size=800 l4dope | SharedMem(get_adr): address = 0x7000 l4dope | SharedMem(alloc): hl.raw=100000, id=47, size=800 l4dope | SharedMem(get_adr): address = 0xd000 l4dope | SharedMem(alloc): hl.raw=100000, id=48, size=800 l4dope | SharedMem(get_adr): address = 0xe000 l4dope | SharedMem(alloc): hl.raw=100000, id=49, size=800 l4dope | SharedMem(get_adr): address = 0xf000 l4dope | SharedMem(alloc): hl.raw=100000, id=4b, size=800 l4dope | SharedMem(get_adr): address = 0x16000 usbcore | main(): Initializing DDE kmalloc. usbcore | main(): Initializing DDE process. usbcore | main(): Initializing DDE timers. usbhid | l4dde_mm_init(): Using ... usbhid | 16 kB at 0x00002000 (vmem) usbhid | 128 kB in 1 regions (kmem) l4dope | SharedMem(alloc): hl.raw=100000, id=55, size=484 l4dope | SharedMem(get_adr): address = 0x20000 l4dope | dope: paddr=f0000000 size=4096KiB l4dope | Mapped video memory at f0000000 to 00400000+000000 [4096kB] via L4IO l4dope | mapping: vaddr=0x400000 size=4194304(0x400000) offset=0(0x0) l4dope | Frame buffer base: 0x400000 l4dope | Resolution: 1024x768x16 l4dope | Bytes per scanline: 2048 l4dope | Current video mode is 1024x768 red=11:5 green=5:6 blue=0:5 res=0:0 usbcore | main(): Initializing DDE softirq. usbcore | Softirq daemon starting usbcore | main(): Doing initcalls... usbcore | Initializing DDE page cache usbcore | <6>usbcore: registered new interface driver hub usbhid | register_chrdev(): called input usbhid | register_chrdev(): called usb usbhid | usb: registered new driver hub usbhid | usb: $Revision: 238 $ time 17:10:21 Apr 11 2009 usbhid | usb: High bandwidth mode enabled io | PCI: Setting latency timer of device 00:01.2 to 64 usbhid | /home/user/Desktop/tudos/l4/pkg/usbhid/server/lib-linux/contrib/usb/h usbhid : ost/usb-uhci.c: USB UHCI at I/O 0xc020, IRQ 9 ROOT: Sending ports c030-c031 to task #0e ROOT: Sending ports c032-c033 to task #0e ROOT: Sending ports c034-c035 to task #0e usbhid | usb: Detected 2 ports ROOT: Cannot send port c030 to task #0b, owner is #0e io | [B.2] l4io/server/src/res.c:414:l4_io_request_region_component(): io | sigma0 request for I/O ports [c020,c040) failed (err=0 dw1=0) io | --PANIC, 'g' for exit------------------------------------IP: 00c21185 [io] (b.02) jdb: [View Less]

3 3

ORe + L4Linux network performance
by Alexander Valitov 28 Apr '09

28 Apr '09

Hi All, Could anyone please tell me? 1. Did someone measure a L4Linux network performance when ORe is in use? Are there any report or paper with results? 2. What about 1 Gbit/s cards (e.g. Intel e1000)? Were they tested? 3. How badly is influence of other running L4Linux processes on network performance? Best Regards, Alexander Valitov -- View this message in context: http://www.nabble.com/ORe-%2B-L4Linux-network-performance-tp23273467p232734… Sent from the L4 mailing list archive at Nabble.com.

3 3

vbeset support for GRUB
by Neohtm 24 Apr '09

24 Apr '09

Hi, I'm able to compile L4 Fiasco + DOpE + L4Linux and test run on Qemu. But when i run it on the real machine, the GRUB seems don't support for modaddr and vbeset command. I got the GRUB-0.97 source from Adam's website and compile successfully. But what is the next step after this in order to boot directly on the current machine? I tried to copy directly the compiled files to /boot/grub but it didn't shows the menu.lst instead of that, i'm also not sure about how to tftpboot to another … [View More]

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Do L4 Fiasco microkernel support multicore processor?
by Neohtm 22 Apr '09

22 Apr '09

Hi all, I would like to know whether the Fiasco microkernel is able to run on multicore processor such as Intel Core 2 Duo or Quad Core??? I want to try to compile the Fiasco + DOpE + L4Linux to run on it. Regards, neohtm

2 1

Where to find Grub for Fiasco?
by Sid Yu 20 Apr '09

20 Apr '09

It seems that I can't use standard GNU Grub to boot fiasco directly, since there're several commands not recognized by standard Grub such as "modaddr", "vbeset" and etc. However, I couldn't find the enhanced grub tailored for Fiasco. Following the instructions on http://os.inf.tu-dresden.de/drops/download.html, I have tried to check out the "grub" module from SVN using "$ ./repomgr co grub", but it doesn't make sense. Could anybody tell me where to find the grub for fiasco? -- View this … [View More]

2 1

Re: DDE USB performance
by tapas kundu 18 Apr '09

18 Apr '09

Hi Dirk, sry 4 double posting.... I want dont know what you people exactly mean by double post ? Can I ask two questions in a single day on two diffrent topics? I want to measure usb performance. Could you please tell me how can I measure usbcam performance in terms of data transfer rate? Thanks Tapas On Sat, Apr 18, 2009 at 5:25 AM, Shakthi Kannan <shakthimaan(a)gmail.com>wrote: > Hi, > > You are repeatedly top-posting. Please don't do that in a … [View More]

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l4-hackers April 2009