November 2011 - l4-hackers - example.com Site

shmc bug fixes
by Stefan Fritsch 02 Dec '11

02 Dec '11

Hi, attached are some fixes for shmc: - fix various capability slot leaks in error paths - if l4re_ns_register_obj_srv() fails, return its error code to the caller and don't invent another one - use memory barriers in l4shmc_add_chunk() because l4shmc_get_chunk_to() walks the linked list without acquiring the lock - fix l4shmc_add_signal() freeing one of env's capabilities in an error path Cheers, Stefan

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Getty over L4 shared memory
by Julian Vetter 01 Dec '11

01 Dec '11

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hello All, is there a driver that does the same as the L4Shmnet driver but for serial console? I want to setup a communication between two Linux instances, one should provide a getty-service and the other instance should connect to it.. Thanks in advance. Cheers, Julian -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.11 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iQEcBAEBAgAGBQJO1OxrAAoJEOpGAeJlWp7qFmgIAJ7CZNIBQaNdn1s12p6fy9Rx OMGpKDkp2w/kgD6VZCxj7enzAFo/Z66YwiIVihKe00SM+13tllSr3AbRKWbhpa5F 33iFyI7wAnUnS3Y31DfOleMHlo2ekX7CoLQcD3yq3iuyB61XJRwQLMMY80gZ4dsS u6MFPNBplkG+pl0FuBS7sYXhasZefxB17Cikz/DHI+4ALt/lOQfKcO/Im36fLnoh YR1d0IfY7C9n8e5zNRkOT25KRHl1udJl/Uo14tYxYV/gyWU5jEwzq2tmfqMdZ71M E/sQmSRC68jOrJ1uWNfnz9qGdExNVSuXnR2JspcaeyR356jTIiXpSe0+E9OWZ18= =teF7 -----END PGP SIGNATURE-----

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Genode OS Framework 11.11 released
by Stefan Kalkowski 29 Nov '11

29 Nov '11

Dear L4 hackers, we're pleased to announce the release of version 11.11 of the Genode OS Framework. Genode is an OS architecture that promises to align high security and robustness with dynamic application workloads. It is laid out to run on a number of different microkernels including Nova and Fiasco.OC. To name a few, version 11.11 features GDB debugging facility, the integration of the Vancouver virtual machine monitor, the support of running Android based on the work of the L4Android project, and the ability to execute complex command-line based UNIX software (i.e., VIM) natively on Genode. A short summary of the release-notes follows: * Support for user-level debugging via GDB * Applications and services * Vancouver virtual machine monitor on NOVA * VIM executed on the Noux runtime environment * Terminal emulator implementing the Linux termcap * TCP terminal * Platforms * Fiasco.OC updated to rev 38 * NOVA updated to version 0.4 * New IPC implementation for Linux * Improved support for hybrid Linux/Genode programs * L4Linux on Fiasco.OC * Integration of L4Android (for both x86_32 and ARM) * Stub drivers for block devices, NIC, UART * Device drivers * gPXE device driver environment upgraded to iPXE * Bidirectional UART driver for PL011 and i8250 * PL110 display driver * Support for ARM Versatile Express Cortex-A9x4 * Libc update to FreeBSD 8.2.0 * New unified tool chain based on GCC 4.6.1 You will find a more elaborative discussion of those topics in our comprehensive release-notes document for version 11.11: http://genode.org/documentation/release-notes/11.11 The new version is ready for download at our download page at Sourceforge and our public SVN repository: http://genode.org/download Regards -- Stefan Kalkowski Genode Labs http://www.genode-labs.com/ · http://genode.org/ Genode Labs GmbH · Amtsgericht Dresden · HRB 28424 · Sitz Dresden Geschäftsführer: Dr.-Ing. Norman Feske, Christian Helmuth

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Could not run L4Linux for testing
by Adi Lima 27 Nov '11

27 Nov '11

Hi, I was successfully build L4/Fiasco kernel, and run a few test including Hello World, and also compile and test my own simple program, but I'm having trouble running L4Linux (using kernel 3.0). Actually the kernel was loaded, but when the system execute /bin/sh inside the ramdisk-x86.rd (I get it from the snapshot), it says that it cannot access tty, and then the job control being turn off. I've been trying to follow the example from previous release, but they use rmgr, bmodfs, etc, which I could find on the new release. I've also tried the example from L4Linux Page<http://141.76.48.99/L4/LinuxOnL4/use.shtml>, but it doesn't work. Can you help with the initialization routine? Maybe some example? Thanks. -- FX. J. Adi Lima Trivision Studio

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Re: omap3 usb platform and other
by Sartakov A. Vasily 27 Nov '11

27 Nov '11

got a working usb-host via OTGi will try to make a working EHCI, stay tuned 2011/11/15 giowck <giowckln(a)googlemail.com>: > Hi, > > thank you a lot! > > I will check this soon. > > Am 15.11.2011 11:15, schrieb Sartakov A. Vasily: >> >> Hallo >> This is a steps for get USB-otg work: >> 1. get svn' l4linux, l4re >> 2. cd l4linux directory apply patches: >> patch -p1<drivers.diff >> patch -p1<arch.diff >> 3. make setup >> 4. change .config on usb_config, add in it valid CONFIG_L4_OBJ_TREE >> 5. make L4ARCH=arm menuconfig, >> 6. ordinary l4 build >> 7. put arm-omap3.devs in obj/l4/arm/arm-beagleboard/bin/arm_armv6/l4f >> 8. add: >> entry l4l_1 >> kernel fiasco -serial_esc >> roottask moe rom/l4l_1.cfg >> module l4re >> module ned >> module l4l_1.cfg >> module arm-omap3.devs >> module gumstix-fb-l4l.io >> module io >> module vmlinuz.arm >> module ramdisk-arm.rd >> >> in src/l4/conf/modules.list >> 9. put l4l_1.cfg and gumstix-fb-l4l.io in src/l4/conf/examples >> 10. make uimage and choose l4l_1 >> >> Then you got around 8mb uImage, witch can boot. >> After that you will have BB platform sources in >> arch/l4/kernel/arch-arm, so, if you interesting in USB-host You should >> edit it >> I will try to do it too in nearest future, cos me need a sd/mmc and >> USB-host too. >> Btw, in our configs, all platform resources (mem io, irq) placed in >> single gumstix-fb-l4l.io and arm-omap3.devs cleared, it's important. >> if you have a same resources in both files, most of them will not work >> >> >> >> >> ---------------------------------------------------------- >> >> Hit any key to stop autoboot: 0 >> reading l4img >> >> 8286416 bytes read >> ## Booting kernel from Legacy Image at 80000000 ... >> Image Name: L4 Image #8 >> Image Type: ARM Linux Kernel Image (uncompressed) >> Data Size: 8286352 Bytes = 7.9 MiB >> Load Address: 81000000 >> Entry Point: 81000000 >> Verifying Checksum ... OK >> Loading Kernel Image ... OK >> OK >> >> Starting kernel ... >> >> >> L4 Bootstrapper >> Build: #8 Tue Nov 15 10:30:07 CET 2011, 4.4.1 >> Scanning up to 128 MB RAM >> Memory size is 128MB (80000000 - 88000000) >> RAM: 0000000080000000 - 0000000087ffffff: 131072kB >> Total RAM: 128MB >> mod10: 814e7000-817e7000: ramdisk-arm.rd >> mod09: 81204000-814e60a0: vmlinuz.arm >> mod08: 8111e000-81203074: io >> mod07: 8111d000-8111d97f: gumstix-fb-l4l.io >> mod06: 8111c000-8111c103: arm-omap3.devs >> mod05: 8111b000-8111b302: l4l_1.cfg >> mod04: 810c5000-8111a670: ned >> mod03: 810aa000-810c439c: l4re >> mod02: 8106f000-810a9b50: moe >> mod01: 81065000-8106e70c: sigma0 >> mod00: 81015000-81064ef4: fiasco >> Moving 11 modules to 81100000 with offset eb000 >> moving module 11 { 814e7000-817e7000 } -> { 815d2000-818d2000 } >> moving module 10 { 81204000-814e60a0 } -> { 812ef000-815d10a0 } >> moving module 09 { 8111e000-81203074 } -> { 81209000-812ee074 } >> moving module 08 { 8111d000-8111d97f } -> { 81208000-8120897f } >> moving module 07 { 8111c000-8111c103 } -> { 81207000-81207103 } >> moving module 06 { 8111b000-8111b302 } -> { 81206000-81206302 } >> moving module 05 { 810c5000-8111a670 } -> { 811b0000-81205670 } >> moving module 04 { 810aa000-810c439c } -> { 81195000-811af39c } >> moving module 03 { 8106f000-810a9b50 } -> { 8115a000-81194b50 } >> moving module 02 { 81065000-8106e70c } -> { 81150000-8115970c } >> moving module 01 { 81015000-81064ef4 } -> { 81100000-8114fef4 } >> Scanning fiasco -serial_esc >> Scanning sigma0 >> Scanning moe rom/l4l_1.cfg >> Relocated mbi to [0x8100f000-0x8100f186] >> Loading fiasco >> Loading sigma0 >> Loading moe >> find kernel info page... >> found kernel info page at 0x80002000 >> Regions of list regions >> [ 80001000, 800019ff] { a00} Kern fiasco >> [ 80002000, 80061fff] { 60000} Kern fiasco >> [ 80090000, 800969bf] { 69c0} Sigma0 sigma0 >> [ 80098000, 8009e17b] { 617c} Sigma0 sigma0 >> [ 80140000, 80176183] { 36184} Root moe >> [ 80178000, 8018ed0f] { 16d10} Root moe >> [ 81000000, 810143eb] { 143ec} Boot bootstrap >> [ 8100f000, 8100f283] { 284} Root Multiboot info >> [ 81195000, 818d1fff] { 73d000} Root Modules Memory >> API Version: (87) experimental >> Sigma0 config ip:800900e0 sp:81013704 >> Roottask config ip:801401c0 sp:00000000 >> Starting kernel fiasco at 80001000 >> Hello from Startup::stage2 >> Initialize page table >> Vmem_alloc::init() >> Cache config: ON >> ID_PFR0: 00001031 >> ID_PFR1: 00000011 >> ID_DFR0: 00010400 >> ID_AFR0: 00000000 >> ID_MMFR0: 31100003 >> ID_MMFR1: 20000000 >> ID_MMFR2: 01202000 >> ID_MMFR3: 00000011 >> FPU0: Arch: VFPv3(3), Part: VFPv3(30), r: 1, v: c, i: 41, t: hard, p: >> dbl/sngl >> SERIAL ESC: allocated IRQ 74 for serial uart >> Not using serial hack in slow timer handler. >> Welcome to Fiasco.OC (arm)! >> L4/Fiasco.OC arm microkernel (C) 1998-2011 TU Dresden >> Rev: r38 compiled with gcc 4.4.1 for Beagleboard [] >> Build: #2 Tue Nov 15 09:44:12 CET 2011 >> >> Calibrating timer loop... done. >> SIGMA0: Hello! >> KIP @ 80002000 >> allocated 4KB for maintenance structures >> SIGMA0: Dump of all resource maps >> RAM:------------------------ >> [0:80000000;80000fff] >> [0:80062000;8008ffff] >> [0:80097000;80097fff] >> [0:8009f000;8013ffff] >> [4:80140000;80176fff] >> [0:80177000;80177fff] >> [4:80178000;8018efff] >> [0:8018f000;8100efff] >> [4:8100f000;8100ffff] >> [0:81010000;81194fff] >> [4:81195000;818d1fff] >> [0:818d2000;86ffffff] >> IOMEM:---------------------- >> [0:0;7fffffff] >> [0:88000000;ffffffff] >> MOE: Hello world >> MOE: found 106516 KByte free memory >> MOE: found RAM from 80000000 to 87000000 >> MOE: allocated 112 KByte for the page array @0x80062000 >> MOE: virtual user address space [0-bfffffff] >> MOE: rom name space cap -> [C:501000] >> BOOTFS: [81195000-811af39c] [C:503000] l4re >> BOOTFS: [811b0000-81205670] [C:504000] ned >> BOOTFS: [81206000-81206302] [C:505000] l4l_1.cfg >> BOOTFS: [81207000-81207103] [C:506000] arm-omap3.devs >> BOOTFS: [81208000-8120897f] [C:507000] gumstix-fb-l4l.io >> BOOTFS: [81209000-812ee074] [C:508000] io >> BOOTFS: [812ef000-815d10a0] [C:509000] vmlinuz.arm >> BOOTFS: [815d2000-818d2000] [C:50a000] ramdisk-arm.rd >> MOE: cmdline: moe rom/l4l_1.cfg >> MOE: Starting: rom/ned rom/l4l_1.cfg >> MOE: loading 'rom/ned' >> Ned says: Hi World! >> Ned: loading file: 'rom/l4l_1.cfg' >> IO | Io service >> IO | WARNING: device 'plat' already assigned to an other virtual bus. >> IO | WARNING: device 'prcm3' already assigned to an other virtual >> bus. >> IO | WARNING: device 'prcm2' already assigned to an other virtual >> bus. >> IO | WARNING: device 'sys' already assigned to an other virtual bus. >> IO | WARNING: device 'i2c1' already assigned to an other virtual bus. >> IO | WARNING: device 'gpio' already assigned to an other virtual bus. >> IO | Ready. Waiting for request. >> l4linux | PH 0 (t: 1) offs=00008000 vaddr=00100000 vend=004492ec >> l4linux | phys=00100000 ephys=004492ec >> l4linux | f_sz=002c83cc memsz=003492ec flgs=rwx >> l4linux | PH 1 (t: 4) offs=002d03a8 vaddr=003c83a8 vend=003c83cc >> l4linux | phys=003c83a8 ephys=003c83cc >> l4linux | f_sz=00000024 memsz=00000024 flgs=r-x >> l4linux | PH 2 (t: 1685382481) offs=00000000 vaddr=00000000 vend=00000000 >> l4linux | phys=00000000 ephys=00000000 >> l4linux | f_sz=00000000 memsz=00000000 flgs=rwx >> l4linux | Starting binary at 0x11e2f8, argc=9 argv=0x80007f84 >> *argv=0xb1007ff0 argv0=rom/vmlinuz.arm >> l4linux | External resolver is at 0xa80006a0 >> l4linux | ======> L4Linux 2.6 starting...<======== >> l4linux | Linux version 3.0.0-l4-svn23 (jdoe@ubuntu) (gcc version >> 4.4.1 (Sourcery G++ Lite 2009q3-67) ) #2 Tue Nov 15 09:54:29 CET 2011 >> l4linux | Binary name: rom/vmlinuz.arm >> l4linux | This is an AEABI build. >> l4linux | Linux kernel command line (8 args): mem=64M console=ttyLv0 >> l4x_rd=rom/vHSM.rd root=1:0 rw ramdisk_size=20480 init=/linuxrc debug >> l4linux | CPU mapping (l:p)[1]: 0:0 >> l4linux | Image: 00100000 - 00500000 [4096 KiB]. >> l4linux | Areas: Text: 00100000 - 003a8000 [2720kB] (a bit longer) >> l4linux | Data: 003a8000 - 003c38a0 [110kB] >> l4linux | Initdata: 00100000 - 0011d000 [116kB] >> l4linux | BSS: 003c83cc - 004492ec [515kB] >> l4linux | l4lx_thread_create: Created thread 415 (tamer0) (u:b3000400, >> sp:003cc288) >> l4linux | Tamer0 is 415 >> l4linux | Using tamed mode. >> l4linux | Device scan: >> l4linux | Device: System Control >> l4linux | MEM: 48002000 - 480047ff >> l4linux | MEM: 48004800 - 4800ffff >> l4linux | Device: i2c >> l4linux | MEM: 48070000 - 48070fff >> l4linux | Device: prcm2 >> l4linux | MEM: 48060000 - 4806007f >> l4linux | MEM: 48072000 - 4807207f >> l4linux | MEM: 480ab000 - 480acfff >> l4linux | MEM: 48200000 - 4820ffff >> l4linux | MEM: 48306800 - 48309fff >> l4linux | MEM: 4830a000 - 4830ffff >> l4linux | MEM: 6c000000 - 6cffffff >> l4linux | MEM: 6d000000 - 6dffffff >> l4linux | IRQ: 00000038 - 00000038 >> l4linux | IRQ: 0000003d - 0000003d >> l4linux | IRQ: 00000039 - 00000039 >> l4linux | IRQ: 00000007 - 00000007 >> l4linux | IRQ: 0000005c - 0000005c >> l4linux | Device: plat >> l4linux | IRQ: 0000004d - 0000004d >> l4linux | l4lx_thread_create: Created thread 417 (cpu0) (u:b3000600, >> sp:003a9ff0) >> l4linux | main thread will be 417 >> l4linux | l4x_register_pointer_section: addr = 00100000 size = 3448832 >> l4linux | section-with-init: virt: 0x100000 to 0x4492eb [3364 KiB] >> l4linux | section-with-init: Phys: 0x8034d000 to 0x806962ec, Size: >> 3445484 >> l4linux | l4x_linux_startup: thread 417. >> l4linux | Main thread running, waiting... >> l4linux | main thread: received startup message. >> l4linux | l4x_setup_memory: Forcing superpages for main memory >> l4linux | l4re_global_env: 0xb1007ef4 >> l4linux | Main memory size: 64MB >> l4linux | Main memory: virt: 0x500000 to 0x44fffff [65536 KiB] >> l4linux | Main memory: Phys: 0x81900000 to 0x85900000, Size: 67108864 >> l4linux | Filling lower ptabs... >> l4linux | Done (436 entries). >> l4linux | l4x_register_pointer_section: addr = 004ff000 size = 4096 >> l4linux | end: virt: 0x4ff000 to 0x4fffff [4 KiB] >> l4linux | end: Phys: 0x80698000 to 0x80699000, Size: 4096 >> l4linux | l4x_rd_path: rom/vHSM.rd >> l4linux | Loading: rom/vHSM.rd >> l4linux | Failed to query name 'rom/vHSM.rd': No such object found(-2) >> l4linux | Failed to get initrd: No such object found(-2) >> l4linux | Couldn't load ramdisk :( >> l4linux | l4lx_thread_create: Created thread 41c (IRQ CPU0) >> (u:b3000800, sp:003e3ff0) >> Linux version 3.0.0-l4-svn23 (jdoe@ubuntu) (gcc version 4.4.1 >> (Sourcery G++ Lite 2009q3-67) ) #2 Tue Nov 15 09:54:29 CET 2011 >> CPU: Fiasco [860f0001] revision 1 (ARMvundefined/unknown), cr=00000000 >> CPU: unknown data cache, unknown instruction cache >> cpu_v6_proc_init >> Machine: L4 >> Memory policy: ECC disabled, Data cache writeback >> _CACHE_flush_kern_cache_all() >> On node 0 totalpages: 17409 >> free_area_init_node: node 0, pgdat 003c2f44, node_mem_map 00500000 >> DMA zone: 138 pages used for memmap >> DMA zone: 0 pages reserved >> DMA zone: 17271 pages, LIFO batch:3 >> pcpu-alloc: s0 r0 d32768 u32768 alloc=1*32768 >> pcpu-alloc: [0] 0 >> Built 1 zonelists in Zone order, mobility grouping on. Total pages: 17271 >> Kernel command line: mem=64M console=ttyLv0 l4x_rd=rom/vHSM.rd >> root=1:0 rw ramdisk_size=20480 init=/linuxrc debug >> PID hash table entries: 512 (order: -1, 2048 bytes) >> Dentry cache hash table entries: 16384 (order: 4, 65536 bytes) >> Inode-cache hash table entries: 8192 (order: 3, 32768 bytes) >> Memory: 0MB 68MB = 68MB total >> Memory: 64808k/64808k available, 4828k reserved, 0K highmem >> Virtual kernel memory layout: >> vector : 0xbffff000 - 0xc0000000 ( 4 kB) >> fixmap : 0xfff00000 - 0xfffe0000 ( 896 kB) >> DMA : 0xffc00000 - 0xffe00000 ( 2 MB) >> vmalloc : 0x04600000 - 0x0c600000 ( 128 MB) >> lowmem : 0x00000000 - 0x04500000 ( 69 MB) >> modules : 0xff100000 - 0x00100000 ( 16 MB) >> .init : 0x00100000 - 0x0011d000 ( 116 kB) >> .text : 0x0011e000 - 0x003a6e5c (2596 kB) >> .data : 0x003a8000 - 0x003c38a0 ( 111 kB) >> .bss : 0x003c83cc - 0x004492ec ( 516 kB) >> NR_IRQS:395 nr_irqs:395 395 >> l4lx_irq_init: creating IRQ thread on cpu 0 >> Console: colour dummy device 80x30 >> console [ttyLv0] enabled >> Calibrating delay loop... irq_thread: Starting IRQ thread on CPU 0 >> 496.43 BogoMIPS (lpj=2482176) >> pid_max: default: 32768 minimum: 301 >> Mount-cache hash table entries: 512 >> CPU: Testing write buffer coherency: ok >> print_constraints: dummy: >> NET: Registered protocol family 16 >> __l4x_ioremap: Mapping physaddr 48002000 [0x1000 Bytes, >> 48002000+001000] to 04500000+000000 >> __l4x_ioremap: Mapping physaddr 48306800 [0x2000 Bytes, >> 48306000+003000] to 04501000+000800 >> __l4x_ioremap: Mapping physaddr 48004800 [0x2000 Bytes, >> 48004000+003000] to 04504000+000800 >> _CACHE_flush_kern_cache_all() >> __l4x_ioremap: Mapping physaddr 48200000 [0x1000 Bytes, >> 48200000+001000] to 04507000+000000 >> IRQ: Found an INTC at 0x04507000 (revision 4.0) with 96 interrupts >> Total of 96 interrupts on 1 active controller >> omap3xxx_powerdomains_init >> recalculate_root_clocks >> Clocking rate (Crystal/Core/MPU): 26.0/332/500 MHz >> ERROR: IO-memory (68000000+ffff) not available >> omap_hwmod: l3_main: Could not ioremap >> omap_hwmod: _populate_mpu_rt_base found no _mpu_rt_va for l3_main >> omap_hwmod: _populate_mpu_rt_base found no _mpu_rt_va for l4_core >> omap_hwmod: _populate_mpu_rt_base found no _mpu_rt_va for l4_per >> omap_hwmod: _populate_mpu_rt_base found no _mpu_rt_va for l4_wkup >> __l4x_ioremap: Mapping physaddr 48070000 [0x7f Bytes, 48070000+001000] >> to 04508000+000000 >> __l4x_ioremap: Mapping physaddr 48072000 [0x7f Bytes, 48072000+001000] >> to 04509000+000000 >> __l4x_ioremap: Mapping physaddr 48060000 [0x7f Bytes, 48060000+001000] >> to 0450a000+000000 >> __l4x_ioremap: Mapping physaddr 480ab000 [0xfff Bytes, >> 480ab000+001000] to 0450b000+000000 >> omap_hwmod: i2c1: softreset failed (waited 10000 usec) >> omap_hwmod: i2c2: softreset failed (waited 10000 usec) >> omap_hwmod: i2c3: softreset failed (waited 10000 usec) >> omap2_common_pm_init >> Added static device 'System Control' with 2 resources. >> Added static device 'i2c' with 1 resources. >> Added static device 'prcm2' with 13 resources. >> omap_register_i2c_bus bus_id=1 nr_ports=3 >> omap2_i2c_add_bus >> omap_register_i2c_bus bus_id=3 nr_ports=3 >> omap2_i2c_add_bus >> omap_init_opp_table: no hwmod or odev for iva, [9] cannot add OPPs. >> overo_opp_init: opp default init failed >> >> >> >> ============ >> ICLKEN_CORE 7ffffedb >> ICLKEN_CORE 7ffffedb >> FCLKEN_CORE 43fffe01 >> FCLKEN_CORE c3fffe01 >> CTRL i2c 1 11c0118 >> CTRL i2c 2 118011c >> CTRL i2c 3 1c0118 >> bio: create slab<bio-0> at 0 >> Failed to create "l4x" debugfs directory: 1 >> omap_i2c omap_i2c.1: bus 1 rev3.12 at 2600 kHz >> l4linux | cpu0: utcb=0xb3000600 417 >> l4linux | l4lx_thread_create: Created thread 41f (idler0) (u:b3000a00, >> sp:003e5ff4) >> twl4030: PIH (irq 7) chaining IRQs 368..375 >> twl4030: power (irq 373) chaining IRQs 376..383 >> print_constraints: VUSB1V5: 1500 mV normal standby >> print_constraints: VUSB1V8: 1800 mV normal standby >> print_constraints: VUSB3V1: 3100 mV normal standby >> twl4030_usb twl4030_usb: HW_CONDITIONS 0x90/144; link 1 >> twl4030_usb twl4030_usb: Initialized TWL4030 USB module >> omap_i2c omap_i2c.3: bus 3 rev3.12 at 400 kHz >> Switching to clocksource kip >> musb-hdrc: version 6.0, pio, peripheral >> musb-hdrc: ConfigData=0xde (UTMI-8, dyn FIFOs, bulk combine, bulk >> split, HB-ISO Rx, HB-ISO Tx, SoftConn) >> musb-hdrc: MHDRC RTL version 1.400 >> musb-hdrc: setup fifo_mode 4 >> musb-hdrc: 28/31 max ep, 16384/16384 memory >> musb-hdrc musb-hdrc: USB Peripheral mode controller at 0450b000 using >> PIO, IRQ 92 >> NET: Registered protocol family 2 >> IP route cache hash table entries: 1024 (order: 0, 4096 bytes) >> TCP established hash table entries: 4096 (order: 3, 32768 bytes) >> TCP bind hash table entries: 4096 (order: 2, 16384 bytes) >> TCP: Hash tables configured (established 4096 bind 4096) >> TCP reno registered >> UDP hash table entries: 256 (order: 0, 4096 bytes) >> UDP-Lite hash table entries: 256 (order: 0, 4096 bytes) >> NET: Registered protocol family 1 >> NetWinder Floating Point Emulator V0.97 (double precision) >> msgmni has been set to 126 >> io scheduler noop registered >> io scheduler deadline registered >> io scheduler cfq registered (default) >> L4 serial driver >> ttyLv0 at MMIO 0x1 (irq = 385) is a L4 >> L4 shared mem serial driver >> l4cdds: No name given, not starting. >> brd: module loaded >> l4bdds: No name given, not starting. >> g_ether gadget: using random self ethernet address >> g_ether gadget: using random host ethernet address >> usb0: MAC 4a:57:0a:8c:6d:1c >> usb0: HOST MAC 2a:99:fb:8b:c0:d3 >> g_ether gadget: adding config #2 'RNDIS'/003bf038 >> g_ether gadget: adding 'rndis'/0414cd60 to config 'RNDIS'/003bf038 >> rndis_register: configNr = 0 >> rndis_set_param_medium: 0 0 >> g_ether gadget: RNDIS: dual speed IN/ep1in OUT/ep1out NOTIFY/ep2in >> g_ether gadget: cfg 2/003bf038 speeds: high full >> g_ether gadget: interface 0 = rndis/0414cd60 >> g_ether gadget: interface 1 = rndis/0414cd60 >> g_ether gadget: adding config #1 'CDC Ethernet (ECM)'/003bef9c >> g_ether gadget: adding 'cdc_ethernet'/0414cca0 to config 'CDC Ethernet >> (ECM)'/003bef9c >> g_ether gadget: CDC Ethernet: dual speed IN/ep1in OUT/ep1out NOTIFY/ep2in >> g_ether gadget: cfg 1/003bef9c speeds: high full >> g_ether gadget: interface 0 = cdc_ethernet/0414cca0 >> g_ether gadget: interface 1 = cdc_ethernet/0414cca0 >> g_ether gadget: Ethernet Gadget, version: Memorial Day 2008 >> g_ether gadget: g_ether ready >> mousedev: PS/2 mouse device common for all mice >> i2c /dev entries driver >> TCP cubic registered >> NET: Registered protocol family 17 >> omap2_common_pm_late_init >> >> >> 2011/11/2 Giorgio Wicklein<giowckln(a)googlemail.com>: >>> >>> Hi, >>> >>> I spent a lot of time trying to get specific OMAP3/Beagleboard hardware >>> modules working (EHCI USB mainly). >>> So far, without luck. >>> >>> A generic "how-to-integrate-linux-drivers-in-l4linux" example would be >>> very helpful. >>> The procedure is not very clear to me (since I'm really new here). >>> >>> Based on Vasily's work, I changed some sources of linux drivers, to get >>> musb, >>> otg, and usb-ehci compiled without errors. The bootlog compared to >>> Vasily's >>> one [1], is very different; Drivers seems to load, but they don't >>> recognize the >>> hardware (I think). >>> >>> For example the following boot messages doesn't appear on mine: >>> >>> omap_register_i2c_bus bus_id=1 nr_ports=3 >>> omap2_i2c_add_bus >>> omap_register_i2c_bus bus_id=3 nr_ports=3 >>> omap2_i2c_add_bus >>> >>> or >>> >>> __l4x_ioremap: Mapping physaddr 48200000 [0x1000 Bytes, >>> 48200000+001000] to 04507000+000000 >>> IRQ: Found an INTC at 0x04507000 (revision 4.0) with 96 interrupts >>> >>> or >>> >>> twl4030: PIH (irq 7) chaining IRQs 368..375 >>> twl4030: power (irq 373) chaining IRQs 376..383 >>> print_constraints: VUSB1V5: 1500 mV normal standby >>> print_constraints: VUSB1V8: 1800 mV normal standby >>> print_constraints: VUSB3V1: 3100 mV normal standby >>> twl4030_usb twl4030_usb: HW_CONDITIONS 0x90/144; link 1 >>> twl4030_usb twl4030_usb: Initialized TWL4030 USB module >>> omap_i2c omap_i2c.3: bus 3 rev3.12 at 400 kHz >>> Switching to clocksource kip >>> musb-hdrc: version 6.0, pio, peripheral >>> musb-hdrc: ConfigData=0xde (UTMI-8, dyn FIFOs, bulk combine, bulk >>> split, HB-ISO Rx, HB-ISO Tx, SoftConn) >>> musb-hdrc: MHDRC RTL version 1.400 >>> musb-hdrc: setup fifo_mode 4 >>> musb-hdrc: 28/31 max ep, 16384/16384 memory >>> musb-hdrc musb-hdrc: USB Peripheral mode controller at 0450b000 using >>> >>> and such... >>> >>> Some of these messages are generated by sources from the mach-omap2 >>> directroy, >>> which AFAIK are not necessary, since changes where not mentioned in >>> Vasily's >>> patch. Do I need to include mach-omap? If yes, how? >>> >>> Please take a look at my patch (attached below). I did some work, >>> specific for >>> ehci usb Beagleboard support. >>> >>> What is the correct method for adding those drivers? >>> Any suggestions? Or examples (since Vasily's is not complete for me)... >>> >>> My configs are in the attachment with the main patch. >>> >>> Thanks, >>> Giorgio >>> >>> [1] Vasily's bootlog - >>> http://os.inf.tu-dresden.de/pipermail/l4-hackers/2011/005069.html >>> >>> _______________________________________________ >>> l4-hackers mailing list >>> l4-hackers(a)os.inf.tu-dresden.de >>> http://os.inf.tu-dresden.de/mailman/listinfo/l4-hackers >>> >>> >> >> >> > > -- Sartakov A. Vasily

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Bugs in Semaphore implementation in Fiasco.OC?
by Chen Tian 27 Nov '11

27 Nov '11

Hello, I wonder if the following two problems are bugs. 1. In u_semaphore.cpp, function wakeup_locked, (around line 189): w->state_change_dirty(~Thread_ipc_mask, Thread_ready); If thread w is running on a different core than thread c, assertion in function state_change_dirty will fail. I think it should be w->state_change_dirty(~Thread_ipc_mask, Thread_ready, false); 2. In u_semaphore.cpp, function block_locked, (around line 146): c->state_del_dirty(~Thread_ipc_mask) should be c->state_del_dirty(Thread_ipc_mask). Otherwise, wrong bits will be cleared, which cause the assertion in assert_irq_entry() to fail. Best, Chen

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FOSDEM 2012 - Multiserver, microkernel-based operating systems devroom
by Jakub Jermar 22 Nov '11

22 Nov '11

FOSDEM 2012 - Multiserver, microkernel-based operating systems devroom *CALL FOR PARTICIPATION* http://fosdem.org/2012 (apologies for cross-posting) The developers of several free and open-source multiserver and/or microkernel-based operating systems will meet at FOSDEM 2012 in Brussels, Belgium and will share a developer room. The devroom is currently looking for content in the form of talks related to the area of multiserver and/or microkernel-based operating systems. Possible topics include, but are not limited to: OS introduction to developers of other OS Subsystems and architecture Hardware and device drivers Tools and languages Release engineering and testing Experience and learning from mistakes Technical challenges Community and life with an OS-project Academia and education Please send your talk proposal(s) to: microkernel-devroom(a)lists.fosdem.org no later than by 2011-12-31. Make sure to include the following in your proposal: - title of your talk (will be printed in the FOSDEM booklet) - your full name (will be printed in the FOSDEM booklet) - your short bio giving us some idea of who you are and what is your relation to and qualification for the subject of your talk - number of 15-minute slots that you need for the talk (talks longer than 45 minutes are discouraged) The final devroom schedule (along with accepted talks) will be announced on 2012-01-9 (Jan 9) in: microkernel-devroom(a)lists.fosdem.org and the speakers will be notified via e-mail. The schedule will be also published on the FOSDEM web and in the FOSDEM booklet after 2012-01-21. If you do not want to or cannot give a talk yourself, you may still send suggestions for what else you would like to see/hear/do in the devroom. Please send your suggestions to the above mailing list. The devroom is scheduled for Sunday of February 5, room K.3.201. The seating capacity of the room is 85 seats. Any changes will be announced in the above mailing list. Jakub Jermar

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L4Linux modules PB11MPCORE
by Varun Ganesh 20 Nov '11

20 Nov '11

Hi, I am trying to load L4Linux on PB11MPCORE. I have only the following modules loding up and configured in modules.list mod09: 014b9000-017b9000: ramdisk-arm.rd mod08: 011f7000-014b8488: vmlinuz.arm mod07: 011f6000-011f60bd: arm-rv.io mod06: 01118000-011f5078: io mod05: 01117000-01117189: l4lx.cfg mod04: 010c1000-01116670: ned mod03: 010a6000-010c039c: l4re mod02: 0106b000-010a5b54: moe mod01: 01061000-0106a714: sigma0 mod00: 01014000-010604b0: fiasco The kernel hangs after fetching kernel info at regions.optimize Are these modules sufficient or should I have any others configured

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L4Linux on PB11MPCORE boot hangs at
by Varun Ganesh 17 Nov '11

17 Nov '11

Hi, I have compiled L4, L4re, L4Linux and done a make image using make image E=L4Linux-arm BOOTSTRAP_DO_UIMAGE=y MODULE_SEARCH_PATH=/home/l4/src/kernel/fiasco :/home/l4/src/kernel/fiasco/mybuildir: /home/l4/src/l4/conf/examples: /home/L4Android/l4linux/l4linux_build:/tmp/: /home/l4/src The ramdisk is included in the image as was given in module.list. When i tried booting the image on PB11MPCORE using the U-Boot command, bootm <kernel-address> The kernel starts booting but gets stuck as follows, Booting kernel from Legacy Image at 00008000 ... Image Name: L4 Image #7 Image Type: ARM Linux Kernel Image (uncompressed) Data Size: 8097792 Bytes = 7.7 MB Load Address: 01000000 Entry Point: 01000000 Loading Kernel Image ... L4 Bootstrapper Build: #7 Wed Nov 16 14:01:12 EST 2011, 4.3.2 Scanning up to 256 MB RAM Memory size is 256MB (00000000 - 10000000) RAM: 0000000000000000 - 000000000fffffff: 262144kB Total RAM: 256MB mod09: 014b9000-017b9000: ramdisk-arm.rd mod08: 011f7000-014b8488: vmlinuz.arm mod07: 011f6000-011f60bd: arm-rv.io mod06: 01118000-011f5078: io mod05: 01117000-01117189: l4lx.cfg mod04: 010c1000-01116670: ned mod03: 010a6000-010c039c: l4re mod02: 0106b000-010a5b54: moe mod01: 01061000-0106a714: sigma0 mod00: 01014000-010600f0: fiasco Moving 10 modules to 1100000 with offset ec000 moving module 10 { 14b9000-17b9000 } -> { 15a5000-18a5000 } moving module 09 { 11f7000-14b8488 } -> { 12e3000-15a4488 } moving module 08 { 11f6000-11f60bd } -> { 12e2000-12e20bd } moving module 07 { 1118000-11f5078 } -> { 1204000-12e1078 } moving module 06 { 1117000-1117189 } -> { 1203000-1203189 } moving module 05 { 10c1000-1116670 } -> { 11ad000-1202670 } moving module 04 { 10a6000-10c039c } -> { 1192000-11ac39c } moving module 03 { 106b000-10a5b54 } -> { 1157000-1191b54 } moving module 02 { 1061000-106a714 } -> { 114d000-1156714 } moving module 01 { 1014000-10600f0 } -> { 1100000-114c0f0 } Scanning fiasco Scanning sigma0 Scanning moe rom/l4lx.cfg Relocated mbi to [0x100e000-0x100e151] Loading fiasco Loading sigma0 Loading moe find kernel info page... found kernel info page at 0x2000 What steps should I take to proceed beyond this point. Thanks, Varun Ganesh

2 1

kernel.ld.arm virt_address
by Wesley Miaw 10 Nov '11

10 Nov '11

I'm trying to understand where the value of virt_address inside kernel.ld.arm is coming from. The value is currently 0xf0000000 and the kernel's interrupt vector table is placed at 0xffff0000. On my Cortex-A9 + uATX Versatile Express board this corresponds to the HSB AXI (peripherals communication bus). The memory map for the RealView Emulation Baseboard maps the 0xf0000000 area to logic tile site 2. An objdump of the fiasco image shows that a number of kernel sections are being placed into 0xf0000000 and higher. And things work, but I would think that the correct address should be somewhere in RAM. (RAM which you then have to not withhold from sigma0.) When I try to move the virt_address and .ivt address to somewhere in DRAM like 0x90000000 and 0x9fffffff respectively the kernel fails to load. Maybe because access is restricted although I don't think the MMU would have been turned on yet (but I haven't yet found the place where the MMU is turned on--I would guess by sigma0 or fiasco). Thanks, -- Wesley Miaw wesley(a)wesman.net

2 2