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What happened if different worker link to different coordinator in one lava instance?

by cnspring2002

As title: What happened if different worker link to different coordinator in one lava instance for multinode job?

5 years, 11 months

query about lava usage for MCU like solution

by Hake Huang

Hi Sirs, Does LAVA support MCU like system? Which usually using a debugger to download image to a MCU internal flash, and get uart result? Regards, Hake

5 years, 11 months

jobs using notify with tokens, resubmit as different user

by Kevin Hilman

How can you have more than one LAVA user have the same token secret (e.g. for a notify callback.)? Example use case: - LAVA job with notify callbacks using token names - submited as user "bob", token names of "bob" map to actual token secrets - job fails - user "lab-admin" fixes some lab issues, re-submits job - job passes, but callbacks fail because tokens are associated with user "bob" Since the re-submitted job runs as user "lab-admin", the same token names and corresponding secrets don't exist. Naively, user "lab-admin" tries to copy the token secrets from user "bob" keeping the same token names, but this fails saying that "secret already exists". Why can't different users have the same secrets? I haven't looked at the code, but this limitation kind of suggests that the secret itself is the key in the db, which would prevent multiple secrets of the same. Kevin

5 years, 11 months

kexec boot mechanism

by Hemanth K V

Hello Lava-users, Do we have any sample reference yaml job definition which has booting the target with kexec method. Thanks, Hemanth.

5 years, 11 months

Build information in metadata

by Frank, Matthias

Hello lava users, I use in a test job linuximage, rootfs and dtb from file server location retrieved via http. These files are nightly build from Jenkins. The file links are static so I can use new images within the same test job definition. Jenkins generates also a build information text file with commit IDs an so on. How can I integrate the content of this file in the job metadata or job result log? Using metadata: build-readme: <link> in the job definition is not possible because the link is stable over different build, but the file content is changing. The DUT has no access to the file location because it is in an isolated network. Is there a way to cat the file content on the worker to metadata or job result? Greetings, Matthias

6 years

Invalid device configuration

by Frank, Matthias

Hello lava users, my lava 2019.01 shows me a device with Health == Bad. The Transitions log give that message: March11, 3:02p.m. lava-health Good → Bad (Invalid device configuration) Where can I found information about a misconfigured device? The log files did not provide (in my eyes) sufficient information. As Health checks I use the smoke-tests. Kinds Regards, Matthias

6 years

apt get install hang

by cnspring2002

I use lxc-mocker in docker container, everything is ok. Just if the package did not install in advance, then next command will hang in web: lxc-create -t ubuntu -n test_lava -- --release xenial --mirror http://mirror.bytemark.co.uk/debian --packages systemd,systemd-sysv --arch amd64 I enter the container, see: root@df67cf292479:/# ps -ef UID PID PPID C STIME TTY TIME CMD root 1 0 0 17:20 pts/0 00:00:00 /usr/bin/python3 /usr/bin/lava-slave --level DEBUG --log-file - --master tcp://192.168.1.10:5556 --socket-a root 8 0 0 17:20 pts/1 00:00:00 /bin/bash root 13 1 0 17:20 pts/0 00:00:00 lava-run [job: 837] root 19 13 0 17:20 pts/0 00:00:00 /bin/bash /usr/bin/lxc-create -q -t ubuntu -n test_lava -- --release xenial --mirror http://mirror.bytemark.c root 261 19 1 17:20 pts/0 00:00:00 apt-get -q install -y systemd systemd-sysv root 473 8 0 17:21 pts/1 00:00:00 ps -ef Seems "apt-get install" hang, but if I pre-install the systemd,etc, then everything will ok, the lxc-create will not hang. The same for lxc-attach mocker etc, all will hang if do "apt-get install" & no pakcage preinstall. Please suggest, thanks.

6 years

docker-compose with lava

by Dan Rue

I started playing with the official lava images today and wanted to share my work in progress, in case others are doing something similar or have feedback. My goal is to deploy a lava lab locally. My architecture is a single host (for now) that will host both the lava server and one dispatcher. Once it's all working, I'll start deploying a qemu worker followed by some actual boards (hopefully). So far, I have the following docker-compose.yml: version: '3' services: database: image: postgres:9.6 environment: POSTGRES_USER: lavaserver POSTGRES_PASSWORD: mysecretpassword PGDATA: /var/lib/postgresql/data/pgdata volumes: - ${PWD}/pgdata:/var/lib/postgresql/data/pgdata server: image: lavasoftware/amd64-lava-server:2018.11 ports: - 80:80 volumes: - ${PWD}/etc/lava-server/settings.conf:/etc/lava-server/settings.conf - ${PWD}/etc/lava-server/instance.conf:/etc/lava-server/instance.conf depends_on: - database dispatcher: image: lavasoftware/amd64-lava-dispatcher:2018.11 environment: - "DISPATCHER_HOSTNAME=--hostname=dispatcher.lava.therub.org" - "LOGGER_URL=tcp://server:5555" - "MASTER_URL=tcp://server:5556" With that file, settings.conf, and instance.conf in place, I run 'mkdir pgdata; docker-compose up' and the 3 containers come up and start talking to each other. The only thing exposed to the outside world is lava-server's port 80 at the host's IP, which gives the lava homepage as expected. The first time they come up, the database isn't up fast enough (it has to initialize the first time) and lava-server fails to connect. If you cancel and run again it will connect the second time. A few things to note here. First, it doesn't seem like a persistent DB volume is possible with the existing lava-server container, because the DB is initialized at container build time rather than run-time, so there's not really a way to mount in a volume for the data. Anyway, postgres already solves this. In fact, I found their container documentation and entrypoint interface to be well done, so it may be a nice model to follow: https://hub.docker.com/_/postgres/ The server mostly works as listed above. I copied settings.conf and instance.conf out of the original container and into ./etc/lava-server/ and modified as needed. The dispatcher then runs and points to the server. It's notable that docker-compose by default sets up a docker network, allowing references to "database", "server", "dispatcher" to resolve within the containers. Once up, I ran the following to create my superuser: docker-compose exec server lava-server manage users add --staff --superuser --email dan.rue(a)linaro.org --passwd foo drue Now, for things I've run into and surprises: - When I used a local database, I could log in. With the database in a separate container, I can't. Not sure why yet. - I have the dreaded CSRF problem, which is unlikely to be related to docker, but the two vars in settings.conf didn't seem to help. (I'm terminating https outside of the container context, and then proxying into the container over http) - I was surprised there were no :latest containers published - I was surprised the containers were renamed to include the architecture name was in the container name. My understanding is that's the 'old' way to do it. The better way is to transparently detect arch using manifests. Again, see postgres/ as an example. - my pgdata/ directory gets chown'd when I run postgres container. I see the container has some support for running under a different uid, which I might try. - If the entrypoint of server supported some variables like LAVA_DB_PASSWORD, LAVA_DB_SERVER, SESSION_COOKIE_SECURE, etc, I wouldn't need to mount in things like instance.conf, settings.conf. I pushed my config used here to https://github.com/danrue/lava.home.therub.org. Git clone and then run 'docker-compose up' should just work. Anyway, thanks for the official images! They're a great start and will hopefully really simplify deploying lava. My next step is to debug some of the issues I mentioned above, and then start looking at dispatcher config (hopefully it's just a local volume mount). Dan

6 years

AOSP multiple node job

by Chase Qi

Hi, In most cases, we don't need multiple node job as we can control AOSP DUT from lxc via adb over USB. However, here is the use case. CTS/VTS tradefed-shell --shards option supports to split tests and run them on multiple devices in parallel. To leverage the feature in LAVA, we need multinode job, right? And in multinode job, master-node lxc needs access to DUTs from salve nodes via adb over tcpip, right? Karsten shared a job example here[1]. This probably is the most advanced usage of LAVA, and probably also not encouraged? To make it more clear, the connectivity should look like this. master.lxc <----adb over usb----> master.dut master.lxc <----adb over tcpip ---> slave1.dut master.lxc <----adb over tcpip ---> slave2.dut .... I see two options for adb over tcpip. Option #1: WiFi. adb over wifi can be enabled easily by issuing adb cmds from lxc. I am not using it for two reasons. * WiFi isn't reliable for long cts/vts test run. * In Cambridge lab, WiFi sub-network isn't accessible from lxc network. Because of security concerns, there is no plan to change that. Option #2: Wired Ethernet. On devices like hikey, we need to run 'pre-os-command' in boot action to power off OTG port so that USB Ethernet dongle works. Once OTG port is off, lxc has no access to the DUT, then test definition should be executed on DUT, right? I am also having the following problems to do this. * Without context overriding, overlay tarball will be applied to '/system' directory and test job reported "/system/bin/sh: /lava-247856/bin/lava-test-runner: not found"[2]. * With the following job context, LAVA still runs '/lava-24/bin/lava-test-runner /lava-24/0' and it hangs there. It is tested in my local LAVA instance, test job definition and test log attached. Maybe my understanding on the context overriding is wrong, I thought LAVA should execute '/system/lava-24/bin/lava-test-runner /system/lava-24/0' instead. Any suggestions would be appreciated. context: lava_test_sh_cmd: '/system/bin/sh' lava_test_results_dir: '/system/lava-%s' I checked on the DUT directly, '/system/lava-%s' exist, but I cannot really run lava-test-runner. The shebang line seems problematic. --- hacking --- hikey:/system/lava-24/bin # ./lava-test-runner /system/bin/sh: ./lava-test-runner: No such file or directory hikey:/system/lava-24/bin # cat lava-test-runner #!/bin/bash #!/bin/sh .... # /system/bin/sh lava-test-runner lava-test-runner[18]: .: /lava/../bin/lava-common-functions: No such file or directory --- ends --- I had a discussion with Milosz. He proposed the third option which probably will be the most reliable one, but it is not supported in LAVA yet. Here is the idea. Milosz, feel free to explain more. **Option #3**: Add support for accessing to multiple DUTs in single node job. * Physically, we need the DUTs connected via USB cable to the same dispatcher. * In single node job, LAVA needs to add the DUTs specified(somehow) or assigned randomly(lets say both device type and numbers defined) to the same lxc container. Test definitions can take over from here. Is this can be done in LAVA? Can I require the feature? Any suggestions on the possible implementations? Thanks, Chase [1] https://review.linaro.org/#/c/qa/test-definitions/+/29417/4/automated/andro… [2] https://staging.validation.linaro.org/scheduler/job/247856#L1888

6 years

How to full validate PSCI

by Lionel DEBIEVE

Dear All, I'm currently trying to check and implement a complete validation of my PSCI solution. The standard behavior for PSCI is to manage shutdown, reset and low power mode. I'm wondering to find the best way to manage it through LAVA. So two questions: - Is there a proper way to check the reboot behavior on a target (soft reboot)? Using shell command is not possible as the is no return from reboot. - Shutdown? I'm wondering to test the shutdown command and trig an automatic wake up after x seconds. My wish is to check that no watchdog occurred during that time (which is the only way to know if the shutdown was properly working). So it will be a similar behavior that the reboot command. Thanks for your support, BR Lionel

6 years

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