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Compiling L4Linux-2.6 without L4Env on L4::Fiasco
by kazilus kazilus 13 Dec '07

13 Dec '07

Hi All, I've got problem to compiling L4Linux-2.6 on Fiasco. For information, i didn't install L4Env package. Does it possible to install L4Linux-2.6 without L4Env, if so, may i know a basic start to do that? Regards, Ahmad Kamal ____________________________________________________________________________________ Looking for last minute shopping deals? Find them fast with Yahoo! Search. http://tools.search.yahoo.com/newsearch/category.php?category=shopping

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Little fix about ORe
by Marc CHALAND 10 Dec '07

10 Dec '07

Hi, I've found that when an ORe client finishes, ORe doesn't stop associated worker thread. Context is correctly freed but not thread. This may lead a lack of thread when several clients finishes and restart several times. Here is a little patch to fix this. Regards Marc

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UX question
by Nicholas Mc Guire 06 Dec '07

06 Dec '07

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hi ! latest svn (as of yesterday) booting ux with the default hello module ends up in jdb and it seems like nither "g" nor "^" nor control-C will kill the beast :) any way out, aside from switching consoles and trampling on fiasco ? some details: root 11705 25.2 3.3 66704 7512 pts/0 S+ 13:48 1:41 ./fiasco - -I hello root 11706 0.0 0.0 0 0 pts/0 Z+ 13:48 0:00 [hello] <defunct> so the hello that happily prints on the real-hw seems to be dead under UX (seems well reproducible) After CNTRL-C I end at: debian:/home/l4/tudos/ux_test# ./fiasco -I hello <snip> Loading Module 0x00100000-0x00109380 [sigma0] Loading Module 0x00110000-0x002ae000 [roottask] Bootstrapping... Welcome to Fiasco(ux)! DD-L4(v2)/ia32 microkernel (C) 1998-2007 TU Dresden Rev: r247 compiled with gcc 4.1.2 for Intel Pentium [] CPU: AuthenticAMD (F:4F:2:0) Model: Unknown CPU at 1803 MHz 32/512 Entry I TLB (4K pages) 8 Entry I TLB (4M pages) 32/512 Entry D TLB (4K pages) 8 Entry D TLB (4M pages) 64 KB L1 I Cache (2-way associative, 64 bytes per line) 64 KB L1 D Cache (2-way associative, 64 bytes per line) 256 KB L2 U Cache (8-way associative, 64 bytes per line) Freeing init code/data: 24576 bytes (6 pages) Calibrating timer loop... - --Interception--------------------------------------ESP:200007a8 EIP:000ceaf6 (0.00) jdb: t thread: 0.00 <00000000> prio: 00 mcp: ff mode: Con state: 001 ready wait for: polling: rcv descr: lcked by: ---.-- timeout : cpu time: 0 timeslice: 100000/100000 s pager : ---.-- cap: ---.-- utcb: 00000000 preemptr: ---.-- not monitored ready lnk: ???.?? ???.?? prsnt lnk: 0.00 0.00 EAX=00000000 ESI=00000000 DS=007b EBX=00000000 EDI=00000000 ES=007b je 0xceae0 ECX=00000000 EBP=63efc000 GS=0000 mov 0xa0(%ebp),%esi EDX=00000000 ESP=200007a8 SS=0000 trap 1 (Debug), error 00000000, from kernel mode CS=0000 EIP=000ceaf6 EFlags=00000246 200007a8 00000000 00000246 00096b24 20000000 00000000 00000000 000cd5f6 00000000 7c0 200007cc 20000000 000cd7ba 00015540 00000000 00000000 00000000 00000000 7e0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 t/bt/l etc. shows only one task and that task is marked ready. any hint ? thx! hofrat -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.4 (GNU/Linux) iD8DBQFHV8wJnU7rXZKfY2oRArptAJ49z8//ypf7IupiBqaIKO89+Y9PBgCbBH4j GSvlkztmVMcICMLsjo7X0dw= =cpwv -----END PGP SIGNATURE-----

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The problems of compiling grub-0.97-os.6
by cheng.guanghui.ml 01 Dec '07

01 Dec '07

Hi: I compile the grub-0.97 patched the os.6 provided by Adam home page. But there are some error messages like following: pre_stage2_exec-bios.o: In function `get_cdinfo': /home/cheng/tudos/grub-0.97/stage2/bios.c:179: undefined reference to `__stack_chk_fail' pre_stage2_exec-bios.o: In function `get_diskinfo': /home/cheng/tudos/grub-0.97/stage2/bios.c:317: undefined reference to `__stack_chk_fail' pre_stage2_exec-boot.o: In function `load_image': /home/cheng/tudos/grub-0.97/stage2/boot.c:759: undefined reference to `__stack_chk_fail' pre_stage2_exec-builtins.o: In function `blocklist_func': /home/cheng/tudos/grub-0.97/stage2/builtins.c:224: undefined reference to `__stack_chk_fail' pre_stage2_exec-builtins.o: In function `embed_func': /home/cheng/tudos/grub-0.97/stage2/builtins.c:1191: undefined reference to `__stack_chk_fail' pre_stage2_exec-builtins.o:/home/cheng/tudos/grub-0.97/stage2/builtins.c:1350: more undefined references to `__stack_chk_fail' follow collect2: ld returned 1 exit status gcc version: 4.1.3 OS: ubuntu 7.10 gutsy

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Re: l4x_hybrid_return for ovlscreen driver
by Adam Lackorzynski 23 Nov '07

23 Nov '07

Hi Marc, On Wed Nov 21, 2007 at 14:38:54 +0100, Marc CHALAND wrote: > 2007/11/21, Adam Lackorzynski <adam(a)os.inf.tu-dresden.de>: > > > > Are you using 2k or 4k stack in Fiasco? If 2k, try 4k. > > I've tried 4k without success. Should I compile all l4env ? No, this is just a kernel matter. > > Also, there's a > > stack depth debugging feature, i.e. when you look at the thread list > > there's figure how much stack is used. You could look at those figure > > too. > > When it crashes, X has got a figure of 1016. It's not necessarily the X process. What are the highest numbers and to which task do they belong? > I join fiasco binary. pf occurs at 0xf0020d8d. Is there something to exploit ? Please send me (in private mail) the fiasco.image file. The one you attached is the stripped version which gives me difficulties finding the correspondig source location. > I also tried to not use assembler IPC shortcut, but fiasco crashes at boot time. Uh? That should not happen and it works for me. Could you send me the config you used for this setup? > > I'd suspect inlining is using a bit more stack than without > > inlining. > > I would have think the opposite as parameters, ebp and eip should be > stacked as with inline code, it shouldn't ? Inlining will duplicate code and thus use more stack, at least that's our experience. I guess gcc could be smarter about stack usage but well... Adam -- Adam adam(a)os.inf.tu-dresden.de Lackorzynski http://os.inf.tu-dresden.de/~adam/

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l4x_hybrid_return for ovlscreen driver
by Marc CHALAND 21 Nov '07

21 Nov '07

Hi, With Nitpicker, I try to start X server with ovlscreen driver. After a little while, I get the following message : l4lx | l4x_hybrid_return: Invalid hybrid return for 23.00 (0x0688d570, e, 0, l4lx : -1, f0020d5d)! l4lx | l4x_hybrid_return: Currently running: 00.00 After some debugging and tracing, I've found that this message happens when X server does a rmgr_get_task_id on names. I don't understand why this IPC fails as ping_call perfectly works (I enabled traces on roottask and saw ping_component call). I tried to enable IPC monitoring with I* into jdb, but I get an assertion in Fiasco : Assertion failed: 'this == current()' in /home/chaland/l4/tudos/kernel/fiasco/src/kern/context.cpp:512 at f0023378 I don't understand what happens. Could you help me please ? Regards Marc

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Error when compiling l4linux
by fang zhengshu 12 Nov '07

12 Nov '07

Hello, after some days trying to compile l4linux , I reach the following problem while compiling l4linux : . . . AR lib/lib.a CC arch/l4/lib/arch-i386/../proc.o LD arch/l4/lib/arch-i386/proc.o LD arch/l4/lib/arch-i386/built-in.o CC arch/l4/lib/arch-i386/../../../i386/lib/bitops.o CC arch/l4/lib/arch-i386/../../../i386/lib/delay.o CC arch/l4/lib/arch-i386/../../../i386/lib/mmx.o CC arch/l4/lib/arch-i386/../../../i386/lib/string.o CC arch/l4/lib/arch-i386/../../../i386/lib/strstr.o CC arch/l4/lib/arch-i386/../memcpy_user.o CC arch/l4/lib/arch-i386/../pte.o CC arch/l4/lib/arch-i386/../uaccess.o CC arch/l4/lib/arch-i386/checksum.o CC arch/l4/lib/arch-i386/memcpy.o make[1]: *** No rule to make target "arch/l4/lib/arch-i386/mmx.o",need by "arch/l4/lib/arch-i386/lib.a". stop。 make: *** [arch/l4/lib/arch-i386] Error 2 ------- I use the /l4linux-2.6/arch/l4/configs/x86-native_defconfig as the defconfig; cp /l4linux-2.6/arch/l4/configs/x86-native_defconfig config cp config .config make oldconfig ;make menuconfig and also I modified the cpu type and device driver. but when I compiled it on AMD Athlon the error apear; when I compiled it on p4 it worked well. -------- I really don't know how to resolve this. Help would be very welcome. Thanks, Dennis

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Mad Mouse
by Marc CHALAND 08 Nov '07

08 Nov '07

Hi I use Nitpicker with dope applications. Sometimes, mouse cursor becomes mad: it goes from right to the left or up to the down. On serial console, I get the following message : nitpicke| serio: i8042 AUX port at 0x60,0x64 irq 12 nitpicke| serio: i8042 KBD port at 0x60,0x64 irq 1 ... nitpicke| connect "ImExPS/2 Generic Explorer Mouse", isa0060/serio1/input0 nitpicke| connect "AT Raw Set 2 keyboard", isa0060/serio0/input0 nitpicke| connect "PC Speaker", isa0061/input0 nitpicke| connect "L4 input event injector", l4/sys ... nitpicke| psmouse.c: Explorer Mouse at isa0060/serio1/input0 lost synchronizati nitpicke: on, throwing 3 bytes away. fiasco is started with -serial_esc option. I tried to modify ACPI parameters into bios, but nothing changed. On google, I've found that noacpi should be used but this option is not available into l4input. I also tried to change mouse. With a linux live cd configuration works perfectly. Have you got any idea about this problem ? Driver should be updated (I use current svn version) ? Something else wrong into my configuration ? Regards Marc

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Hide linux console into DOpE
by Marc CHALAND 07 Nov '07

07 Nov '07

Hi, I added into l4linux a feature that seems to me interesting. With the following patch, it is possible to hide linux console window with the following linux command: echo N > /sys/module/l4fb/parameters/console_visible The console can be shown with the following command : echo Y > /sys/module/l4fb/parameters/console_visible Regards Marc

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problem compiling l4linux - arm
by Dennis Gessner 06 Nov '07

06 Nov '07

Hi, I have some difficulties, compiling l4linux for arm. (I use the toolchain from http://www.ertos.nicta.com.au/downloads/tools/arm-linux-3.4.4.tar.bz2.) Using the version from SVN (# svn co -N http://svn.tudos.org/repos/tudos/trunk tudos), I don't have any problems compiling fiasco or the l4env, but if I try to compile l4linux (... "repomgr co fiasco dice l4linux-2.6-env" ... and after disabling the VGA-Console) - I get the following error-message: --- l4linux-2.6 # make L4ARCH=arm CROSS_COMPILE=arm-linux- CHK include/linux/version.h CHK include/linux/utsrelease.h CALL scripts/checksyscalls.sh <stdin>:91:1: warning: "__IGNORE_sync_file_range" redefined In file included from <stdin>:2: include/asm-l4/arm-arch/asm/unistd.h:444:1: warning: this is the location of the previous definition <stdin>:1097:2: warning: #warning syscall fadvise64 not implemented <stdin>:1265:2: warning: #warning syscall migrate_pages not implemented <stdin>:1321:2: warning: #warning syscall pselect6 not implemented <stdin>:1325:2: warning: #warning syscall ppoll not implemented <stdin>:1365:2: warning: #warning syscall epoll_pwait not implemented CHK include/linux/compile.h GEN .version CHK include/linux/compile.h UPD include/linux/compile.h CC init/version.o LD init/built-in.o LD .tmp_vmlinux1 arch/l4/kernel/arch-arm/built-in.o(.init.text+0x824): In function `start_thread': /root/tudos/l4linux-2.6/include/asm-l4/arm-arch/asm/current.h:9: undefined reference to `l4env_load_initrd' make: *** [.tmp_vmlinux1] Error 1 --- How can I solve this error-message? By the way, using a l4linux Version from 2007-06-30 works very well, but there I have the problem, that the openmoko-kernel-patchset is made for linux 2.6.22.x and my 2007-06-30-Version is 2.6.21.x. Any help would be very welcome! Thanks, Dennis

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