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Sending data to offline system doesn't work reliably
by Johanna Steer 27 Jul '16

27 Jul '16

Hi, i am working on a toolchain monitoring the schedluing behavior of the fiasco.oc kernel. The data is monitored through the trace service (quota for trace is 2M). It is then sent to an offline system through an active TCP/IP connection and written into a database. VDE is used for that and i am working on Ubuntu 14.04. My problem is that the data isn't sent reliably. I am executing a periodic task that returns zero and exits. The only thing that varies is the period. After 20 seconds the tasks stop, the monitored data is gathered and then sent to the offline system. The kernel says that it is sending the data, but the system freezes at times and the data simply doesn't arrive. The system reacts quite randomly: Sometimes it sends the files, sometimes it doesn't. Sometimes i get an error (shown below). It seems easier to send small data sizes (around 200KB), above 700KB hardly anything works. In between, it might work or not. As far as i have experienced there is no pattern behind it. I tried the tests before with only 1M quota for trace and the reliability improved with 2M quota. However, with 4M it gets worse again and the error occures more often. Here ist the error: [init -> nic_drv] tx fifo overrun, ignore packet : spawn id exp6 not open while executing "expect { -i $running_spawn_id $platform_msg { puts stderr "Error: platform rebooted unexpectedly"; exit -4 } -i $running_spawn_id -re $wait_for_re..." (procedure "wait_for_output" line 22) invoked from within "wait_for_output $wait_for_re $timeout_value $qemu_spawn_id" (procedure "run_log" line 28) invoked from within "run_log $wait_for_re $timeout_value" (procedure "run_genode_until" line 28) invoked from within "run_genode_until forever" (file "/home/johanna/Bachelorarbeit/genode/repos/dom0/run/dom0.run" line 132) invoked from within "source $include_name" ("foreach" body line 6) invoked from within "foreach include_name [get_cmd_arg --include ""] { # first check if the include name is absolute if {[string first "/" $include_name] == 0} { puts ..." (file "/home/johanna/Bachelorarbeit/genode/tool/run/run" line 642)

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CPU execution time
by Johanna Steer 26 Jul '16

26 Jul '16

Hi, i am monitoring the cpu execution time on the fiasco.oc kernel. The time is given in a unit at least 100 times smaller than milliseconds, but i can't find the exact size anywhere. My laptop has the i7-4500U Processor with 1.8 GHz if that helps. Regards, Johanna

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Using interrupts to control scheduling decisions in base-hw
by Adrian Hengelhaupt 26 Jul '16

26 Jul '16

Hello, My task is to implement a preemptive scheduler for a zynq-board. Therefore I've tried to figure out how the cpu_scheduler program in repos/baseh-hw/run/cpu_scheduler.run works and whether it can be used as a foundation for my task. So, my question is: How can I utilize interrupts in order to make subsequent scheduling decisions? Thanks in advance! Greetings Adrian

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Exceptions in RPC Functions
by Nobody III 25 Jul '16

25 Jul '16

RPC functions often throw exceptions. What exactly happens when these exceptions are thrown? Most importantly, what happens on the server side? Does the RPC call just end as soon as the error is thrown, allowing the server and the session to continue normally?

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i.mx53 NIC driver
by Jinhong Kim 25 Jul '16

25 Jul '16

Hi, Genode experts Currently I'm working with the TrustZone VMM example from Genode based on Genode 16.05 on i.MX53 QSB. And I want to move NIC device driver from normal world to secure world. To achieve this, 1. Change FEC setting of <CSU.h> to SECURE. (original configuration of FEC is UNSECURE.) However, data abort is occured during boot on imx53 qsb. Is there any hints or suggestion to solve this problem? Thank you for your attention. Regards Jinhon Kim

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TRACE confusion
by Johannes Schlatow 21 Jul '16

21 Jul '16

Hi everyone, I'm a bit confused by the trace_session and its implementation: The documentation suggests that the trace buffer is assigned to a thread. On the other hand, the trace subject is associated with a session label. What I conclude from this is that a thread be identified by multiple trace subjects but can only be assigned a single trace policy and trace buffer, which makes the interface quite confusing. I also had a glance at the implementation and noticed that the Trace::Subject has its own buffer, which is forwarded to the Trace::Source. If I understand this correctly, the Trace::Source is coupled to a thread. I therefore assume that I can only trace one trace subject (associated with the same thread) at a time. Is this correct? Cheers Johannes

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Re: Re: Header files have changed?
by Quin 19 Jul '16

19 Jul '16

Thank you Josef, I checked github and found the problem. I forked my own genode repository (pulled from genodelab's) on github and synchronized with it. However something wrong must had happened as both files were missing in my repository. I'm working on that now. Thank you. Best,Quin -------------------------------- ----- Original Message ----- From: Josef Söntgen <josef.soentgen@...1...> To: Genode OS Framework Mailing List <genode-main(a)lists.sourceforge.net> Subject: Re: Header files have changed? Date: 2016-07-19 16:27 Hello Quin, * Quin <scnypdmax@...437...> [2016-07-19 09:39:28 +0800]: > I am following genode 16.05 tutorials on ubuntu 16.04 lts. I > set up my tests according to chapter 2.5 in corresponding manual > (16.05) and http://genode.org/documentation/developer-resources/client_server_tutorial. > However when I tried to compile the apps, I got errors saying > "base/component.h" and "base/log.h" were not found. I searched the > sub-directories of genode project and had no luck. After digging I > thought I could use base/printf.h instead of log.h. But what is the > alternative of base/component.h? Please check if you are working with version 16.05 and not by any chance with the sources of an older release. If you are indeed using 16.05 than your sources seem to be incomplete and I recommend that you do a clean git checkout or extract the archive afresh. Regards, Josef -- Josef Söntgen Genode Labs http://www.genode-labs.com/ · http://genode.org/ ------------------------------------------------------------------------------ What NetFlow Analyzer can do for you? Monitors network bandwidth and traffic patterns at an interface-level. Reveals which users, apps, and protocols are consuming the most bandwidth. Provides multi-vendor support for NetFlow, J-Flow, sFlow and other flows. Make informed decisions using capacity planning reports.http://sdm.link/zohodev2dev _______________________________________________ genode-main mailing list genode-main(a)lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/genode-main

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Header files have changed?
by Quin 19 Jul '16

19 Jul '16

Hello all,I am following genode 16.05 tutorials on ubuntu 16.04 lts. I set up my tests according to chapter 2.5 in corresponding manual (16.05) and http://genode.org/documentation/developer-resources/client_server_tutorial. However when I tried to compile the apps, I got errors saying "base/component.h" and "base/log.h" were not found. I searched the sub-directories of genode project and had no luck. After digging I thought I could use base/printf.h instead of log.h. But what is the alternative of base/component.h? Any help is appreciated.Thanks,Quin

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Build issue..."Not a git repository"
by Bob Stewart 18 Jul '16

18 Jul '16

Hi, I started getting build warning message about repository not found, as you can see below. This occurred shortly after I did a make prepare for libc and libm from libports on my 16.05 build. I'm building from the BUILD_DIR directory. An suggestion why this is occurring? bob@...297...:/Work/Genode/Builds/16.05/437x$ make run/libc_ffat_fs including /Work/Genode/genode-16.05/tool/run/boot_dir/hw including /Work/Genode/genode-16.05/tool/run/image/uboot including /Work/Genode/genode-16.05/repos/libports/run/libc_ffat_fs.run building targets: core init drivers/timer server/ffat_fs test/libc_vfs drivers/sd_card/spec/437x spawn make core init drivers/timer server/ffat_fs test/libc_vfs drivers/sd_card/spec/437x make[1]: Entering directory `/Work/Genode/Builds/16.05/437x' checking library dependencies... _/fatal: Not a git repository (or any parent up to mount point /Work)/__/ /__/Stopping at filesystem boundary (GIT_DISCOVERY_ACROSS_FILESYSTEM not set)./_ Library platform Library cxx Library base-common Library syscall Library startup Library base Program drivers/sd_card/spec/437x/sd_card_drv Library alarm Library timer Program drivers/timer/timer Library config Program init/init Library ffat_block Program server/ffat_fs/ffat_fs Library libc-string Library libc-locale Library libc-stdlib Library libc-stdio Library libc-gen Library libc-gdtoa Library libc-inet Library libc-stdtime Library libc-regex Library libc-compat Library libc-setjmp Library timed_semaphore Library component_entry_point Library ldso-startup Library ld Library vfs /_fatal: Not a git repository (or any parent up to mount point /Work)_//_ _//_Stopping at filesystem boundary (GIT_DISCOVERY_ACROSS_FILESYSTEM not set)._/ Library libc Program test/libc_vfs/test-libc_vfs Library core-perf_counter Library core COMPILE version.o MERGE core.lib.a Program core/core LINK core make[1]: Leaving directory `/Work/Genode/Builds/16.05/437x' genode build completed spawn make core Thanks, Bob Stewart

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l4android not accessing android image from disk
by john stokes 14 Jul '16

14 Jul '16

hello Genodians i am new to genode as i know that current version of genode does not support the l4android but i want to run it so according to the description of previous run script and some help form you guys i have created a run script in which i have used ahci to access ata driver ,i have created a partition using sfdisk and got access to this using part_blk but i am not able to access it my file is being attached with this mail.my terminal log are given below terminal log =======> [init -> ahci_drv] --- Starting AHCI driver -> done right .-) -- [init -> nic_drv] --- iPXE NIC driver started --- [init -> nic_drv] --- init iPXE NIC [init] child "acpi_report_rom" announces service "Report" [init] child "acpi_report_rom" announces service "ROM" [init -> l4android] Booting L4Linux ... [init] child "timer" announces service "Timer" [init -> kdb_uart_drv] --- Fiasco(.OC) KDB UART driver started --- [init] child "kdb_uart_drv" announces service "Uart" [init] child "kdb_uart_drv" announces service "Terminal" [init -> l4android] ======> L4Linux starting... <======== [init -> l4android] Linux version 3.5.0-l4-gcea6e7a (root@...431...) (gcc version 4.9.2 (GCC) ) #441 SMP Sat Jul 9 23:15:32 IST 2016 [init -> l4android] Binary name: vmlinux [init -> l4android] Linux kernel command line (4 args): mem=512M l4x_rd=root-ginger.gz l4x_cpus=2 l4x_cpus_map=0,1 [init -> l4android] CPU mapping (l:p)[2]: 0:0, 1:1 [init -> l4android] Image: 00401000 - 0090f000 [5176 KiB]. [init -> l4android] Areas: Text: 00401000 - 00838000 [4316kB] (a bit longer) [init -> l4android] Data: 00838000 - 0085c620 [145kB] [init -> l4android] Initdata: 00870000 - 0089b000 [172kB] [init -> l4android] BSS: 0089c000 - 008ff000 [396kB] [init -> l4android] l4util_cpu_capabilities: Not implemented yet! [init -> l4android] gs=43 fs=43 [init -> l4android] l4io_get_root_device: Not implemented yet! [init -> l4android] Device scan: [init -> l4android] l4io_iterate_devices: Not implemented yet! [init -> l4android] Device scan done. [init -> l4android] l4x_fiasco_gdt_entry_offset = 9 [init -> l4android] main thread will be 12 [init -> l4android] l4x_register_pointer_section: addr = 00400000 size = 5304320 [init -> l4android] section-with-init: virt: 400000 to 90efff [5180 KiB] [init -> l4android] Cannot determine physical address for dataspace Binary! [init -> l4android] error: failed to get physical address for 400000. [init -> l4android] Main thread running, waiting... [init -> l4android] thread=12000 cpu=0 [init -> l4android] WARNING: Unknown wrmsr: 0000008b at 6e8181 [init -> l4android] l4x_setup_memory: Forcing superpages for main memory [init -> l4android] l4re_global_env: 0 [init -> usb_drv] Services::Services(): Could not read screen resolution in config node [init -> usb_drv] Services::Services(): No <storage> config node found - not starting the USB Storage (Block) service [init -> usb_drv] Services::Services(): No <raw> config node found - not starting external USB service [init -> usb_drv] Enabled EHCI (USB 2.0) support [init -> l4android] Main memory size: 512MB [init] child "usb_drv" announces service "Input" unmapping of managed dataspaces not yet supported [init -> l4android] Main memory: virt: 20000000 to 3fffffff [524288 KiB] [init -> l4android] Main memory: Phys: 0x00000000 to 0x20000000, Size: 536870912 [init -> acpi_drv] void Acpi_table::_parse_tables(T*, Genode::uint32_t) [with T = unsigned int; Genode::uint32_t = unsigned int]: Found MADT [init -> acpi_drv] MADT IRQ 0 -> GSI 2 flags: 0 [init -> acpi_drv] MADT IRQ 5 -> GSI 5 flags: d [init -> acpi_drv] MADT IRQ 9 -> GSI 9 flags: d [init -> acpi_drv] MADT IRQ 10 -> GSI 10 flags: d [init -> acpi_drv] MADT IRQ 11 -> GSI 11 flags: d [init -> usb_drv] Using configured mac: 54:35:30:58:a5:27 [init] child "platform_drv" announces service "Platform" [init -> fb_drv] int Framebuffer_drv::map_io_mem(Genode::addr_t, Genode::size_t, bool, void**, Genode::addr_t, Genode::Dataspace_capability*): fb mapped to 1000 [init -> l4android] Filling lower ptabs... [init -> l4android] Done (0 entries). [init -> l4android] l4x_register_pointer_section: addr = 00400000 size = 5304320 [init -> l4android] text: virt: 400000 to 90efff [5180 KiB] [init -> l4android] Cannot determine physical address for dataspace Binary! [init -> l4android] error: failed to get physical address for 400000. [init -> l4android] l4x_rd_path: root-ginger.gz [init -> l4android] Loading: root-ginger.gz [init] child "fb_drv" announces service "Framebuffer" [init -> fb_drv] Could not open ROM session for module "config" [init -> l4android] INITRD: Size of RAMdisk is 596KiB [init -> fb_drv] Could not obtain config file [init -> l4android] RAMdisk from 000a3000 to 00138000 [596KiB] [init -> ahci_drv] AHCI found (vendor: 8086 device: 2922 class: 00010601) [init -> ahci_drv] X86_hba::X86_hba(): base: febf1000 size: 1000 [init -> nic_drv] Found: 00:03.0 8086:100e (rev 03) IRQ 0b [init -> ps2_drv] Could not open ROM session for module "config" [init -> ps2_drv] Could not obtain config file [init -> ps2_drv] Using keyboard with scan code set 1 (xlate). [init -> ps2_drv] Detected ExPS/2 mouse - activating scroll-wheel and 5-button support. [init -> platform_drv] IRQ override 11->11 trigger mode=LEVEL polarity=HIGH Quota exceeded! amount=65536, size=4096, consumed=65536 [init -> platform_drv] 0:4.0 uses IRQ, vector 0xb, MSI 64bit capable, non-maskable [init -> ahci_drv] version: 1.0000 [init -> ahci_drv] command slots: 32 [init -> ahci_drv] native command queuing: yes [init -> ahci_drv] 64 bit support: no [init -> platform_drv] PS2 uses IRQ, vector 0x1 [init -> ahci_drv] number of ports: 6 pi: 3f [init -> nic_drv] using driver 82540em [init -> nic_drv] PCI BIOS has not enabled device 00:03.0! Updating PCI command 0103->0107 [init -> platform_drv] PS2 uses IRQ, vector 0xc [init -> nic_drv] PCI device 00:03.0 latency timer is unreasonably low at 0. Setting to 32. [init] child "ps2_drv" announces service "Input" [init -> nic_drv] bus_addr = febc0000 len = 20000 [init -> nic_drv] snprintf not implemented [init -> platform_drv] Could not open ROM session for module "device_pd" [init -> platform_drv] PCI device protection domain for IOMMU support is not available [init -> platform_drv] IRQ override 11->11 trigger mode=LEVEL polarity=HIGH [init -> platform_drv] 0:3.0 uses IRQ, vector 0xb, non-maskable [init -> nic_drv] number of devices: 1 [init] child "nic_drv" announces service "Nic" [init -> fb_drv] Found: VESA BIOS version 3.0 [init -> fb_drv] OEM: SeaBIOS VBE(C) 2011 [init -> l4android] l4timer: Using IRQ65 [init -> l4android] WARNING: Unknown wrmsr: 0000008b at 6e8181 [init -> l4android] WARNING: Unknown rdmsr: 00000186 at 8763de [init -> l4android] WARNING: Unknown rdmsr: 00000187 at 8763de [init -> l4android] WARNING: Unknown wrmsr: 000000c1 at 876468 [init -> l4android] Launching cpu1 on pcpu 1 at 6e65ac [init -> l4android] l4x_cpu_threads[1] = 48000c00 [init -> l4android] thread=1b000 cpu=1 [init -> l4android] WARNING: Unknown wrmsr: 0000008b at 6e8181 [init -> fb_drv] Found: physical frame buffer at 0xfc000000 size: 0x00400000 [init -> fb_drv] int Framebuffer_drv::map_io_mem(Genode::addr_t, Genode::size_t, bool, void**, Genode::addr_t, Genode::Dataspace_capability*): fb mapped to 400000 [init -> fb_drv] Using video mode: 1280 x 1024 x 16 Quota exceeded! amount=65536, size=4096, consumed=65536 [init -> nitpicker] Could not open ROM session for module "config" [init -> nitpicker] Could not obtain config file [init] child "nitpicker" announces service "Nitpicker" [init -> nitpicker] create session with args: label="android_fb", ram_quota=28672 [init -> nitpicker] no policy matching label "android_fb" [init] child "android_fb" announces service "Framebuffer" [init] child "android_fb" announces service "Input" [init -> android_fb] using xywh=(0,0,640,480) [init -> ahci_drv] failed to stop command list processing [init -> ahci_drv] CMD.ST bit set during device reset --> unknown behavior [init -> ahci_drv] #0: ATA [init -> platform_drv] Quota exceeded! amount=741376, size=8192, consumed=741376 [init -> platform_drv] Quota exceeded! amount=1482752, size=8192, consumed=1478656 [init -> platform_drv] Could not open ROM session for module "device_pd" [init -> platform_drv] PCI device protection domain for IOMMU support is not available [init -> ahci_drv] #1: off [init -> ahci_drv] #2: off [init -> ahci_drv] #3: off [init -> ahci_drv] #4: off [init -> ahci_drv] #5: off [init -> ahci_drv] virtual void Ata_driver::handle_irq(): irq: 5 state: 3 [init -> ahci_drv] model number: QEMU HARDDISK [init -> ahci_drv] serial number: QM00005 [init -> ahci_drv] queue depth: 32 ncq: 1 [init -> ahci_drv] numer of sectors: 1048576 [init -> ahci_drv] multiple logical blocks per physical: yes [init -> ahci_drv] logical blocks per physical: 1 [init -> ahci_drv] logical block size is above 512 byte: no [init -> ahci_drv] words (16bit) per logical block: 0 [init -> ahci_drv] offset of first logical block within physical: 0 [init] child "ahci_drv" announces service "Block" [init -> ahci_drv] virtual void Ata_driver::handle_irq(): irq: 8 state: 4 [init -> part_blk] Partition 1: LBA 1 (658664 blocks) type: 83 [init] child "part_blk" announces service "Block" [init -> part_blk] session opened at partition 1 for 'l4android -> sda' [init -> nic_drv] --- init callbacks [init -> nic_drv] --- get MAC address 52:54:00:12:34:56 [init -> l4android] Terminating L4Linux. [init -> l4android] Still alive, going zombie???

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