Hello Diego,
you are the first one (to my knowledge) to report such issues.
Maybe Dave has already seen such issue?
Rgds
Le mar. 26 nov. 2019 à 12:17, Diego Russo Diego.Russo@arm.com a écrit :
Hello,
Sometimes LAVA slaves end up in a funky state where all jobs will be failing for the lxc-creation. This is an just a section of the pstree but actually the machine is not doing anything. No CPU/IO/memory usage at all.
|-lxc-ubuntu,26488 /usr/share/lxc/templates/lxc-ubuntu --path=/var/lib/lxc/mbl-rpi3-healthcheck-lxc-86216 --name=mbl-rpi3-healthcheck-lxc-86216 --rootfs=/var/lib/lxc/mbl-rpi3-healthcheck-lxc-86216/rootfs --release xenial ... | `-lxc-ubuntu,26495 /usr/share/lxc/templates/lxc-ubuntu --path=/var/lib/lxc/mbl-rpi3-healthcheck-lxc-86216 --name=mbl-rpi3-healthcheck-lxc-86216 --rootfs=/var/lib/lxc/mbl-rpi3-healthcheck-lxc-86216/rootfs --release xenial ... | `-flock,26496 -x 9 |-lxc-ubuntu,29367 /usr/share/lxc/templates/lxc-ubuntu --path=/var/lib/lxc/cellular-wifi-lxc-85573 --name=cellular-wifi-lxc-85573 --rootfs=/var/lib/lxc/cellular-wifi-lxc-85573/rootfs --release xenial --packages ... | `-lxc-ubuntu,29374 /usr/share/lxc/templates/lxc-ubuntu --path=/var/lib/lxc/cellular-wifi-lxc-85573 --name=cellular-wifi-lxc-85573 --rootfs=/var/lib/lxc/cellular-wifi-lxc-85573/rootfs --release xenial --packages ... | `-rsync,29590 -Ha /var/cache/lxc/xenial/rootfs-amd64/ /var/lib/lxc/cellular-wifi-lxc-85573/rootfs/ | `-rsync,29593 -Ha /var/cache/lxc/xenial/rootfs-amd64/ /var/lib/lxc/cellular-wifi-lxc-85573/rootfs/ | `-rsync,29594 -Ha /var/cache/lxc/xenial/rootfs-amd64/ /var/lib/lxc/cellular-wifi-lxc-85573/rootfs/ |-lxc-ubuntu,30173 /usr/share/lxc/templates/lxc-ubuntu --path=/var/lib/lxc/multi_component-image-update-pelion-lxc-85584 --name=multi_component-image-update-pelion-lxc-85584... | `-lxc-ubuntu,30186 /usr/share/lxc/templates/lxc-ubuntu --path=/var/lib/lxc/multi_component-image-update-pelion-lxc-85584 --name=multi_component-image-update-pelion-lxc-85584... | `-flock,30187 -x 9 |-lxc-ubuntu,30226 /usr/share/lxc/templates/lxc-ubuntu --path=/var/lib/lxc/helloworld-update-lxc-85537 --name=helloworld-update-lxc-85537 --rootfs=/var/lib/lxc/helloworld-update-lxc-85537/rootfs --release xenial --packages ... | `-lxc-ubuntu,30233 /usr/share/lxc/templates/lxc-ubuntu --path=/var/lib/lxc/helloworld-update-lxc-85537 --name=helloworld-update-lxc-85537 --rootfs=/var/lib/lxc/helloworld-update-lxc-85537/rootfs --release xenial --packages ... | `-flock,30234 -x 9 |-lxc-ubuntu,30800 /usr/share/lxc/templates/lxc-ubuntu --path=/var/lib/lxc/rootfs-image-update-mbl-cli-lxc-85588 --name=rootfs-image-update-mbl-cli-lxc-85588 --rootfs=/var/lib/lxc/rootfs-image-update-mbl-cli-lxc-85588/rootfs ... | `-lxc-ubuntu,30807 /usr/share/lxc/templates/lxc-ubuntu --path=/var/lib/lxc/rootfs-image-update-mbl-cli-lxc-85588 --name=rootfs-image-update-mbl-cli-lxc-85588 --rootfs=/var/lib/lxc/rootfs-image-update-mbl-cli-lxc-85588/rootfs ... | `-flock,30808 -x 9 |-lxc-ubuntu,30837 /usr/share/lxc/templates/lxc-ubuntu --path=/var/lib/lxc/mbl-cli-basic-commands-lxc-85540 --name=mbl-cli-basic-commands-lxc-85540 --rootfs=/var/lib/lxc/mbl-cli-basic-commands-lxc-85540/rootfs --release xenial ... | `-lxc-ubuntu,30844 /usr/share/lxc/templates/lxc-ubuntu --path=/var/lib/lxc/mbl-cli-basic-commands-lxc-85540 --name=mbl-cli-basic-commands-lxc-85540 --rootfs=/var/lib/lxc/mbl-cli-basic-commands-lxc-85540/rootfs --release xenial ... | `-flock,30845 -x 9 |-lxc-ubuntu,31697 /usr/share/lxc/templates/lxc-ubuntu --path=/var/lib/lxc/wifi-access-lxc-85591 --name=wifi-access-lxc-85591 --rootfs=/var/lib/lxc/wifi-access-lxc-85591/rootfs --release xenial --packages systemd,systemd-sysv | `-lxc-ubuntu,31704 /usr/share/lxc/templates/lxc-ubuntu --path=/var/lib/lxc/wifi-access-lxc-85591 --name=wifi-access-lxc-85591 --rootfs=/var/lib/lxc/wifi-access-lxc-85591/rootfs --release xenial --packages systemd,systemd-sysv | `-flock,31705 -x 9 |-lxc-ubuntu,31800 /usr/share/lxc/templates/lxc-ubuntu --path=/var/lib/lxc/multi_component-image-update-mbl-cli-lxc-85542 --name=multi_component-image-update-mbl-cli-lxc-85542... | `-lxc-ubuntu,31807 /usr/share/lxc/templates/lxc-ubuntu --path=/var/lib/lxc/multi_component-image-update-mbl-cli-lxc-85542 --name=multi_component-image-update-mbl-cli-lxc-85542... | `-flock,31808 -x 9
I have tens and tens of this processes. LAVA jobs have failed but lxc processes are still there. It seems to be some sort of deadlock in the lxc world. I'm on Debian stretch 9.8. It recently started with no apparent reason.
Regards
-- Diego Russo | Staff Software Engineer | Mbed Linux OS ARM Ltd. CPC1, Capital Park, Cambridge Road, Fulbourn, CB21 5XE, United Kingdom http://www.diegor.co.uk - https://os.mbed.com/docs/mbed-linux-os/
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