Hi, It seems the issue was linked to the 8139cp NIC driver. I changed the NIC driver to virtio and the stall did not occure anymore. Let me know if you need more informations about this or if I should signal the issue somewhere else.
Regards, On Wed, 09 Feb 2022 14:59:10 +0100 root <a.tre...@alphalink.fr> wrote: > Package: src:linux > Version: 4.19.208-1 > Severity: important > > Dear Maintainer, > > * What led up to the situation? > Installing and running in production a fresh debian 10 with php/apache2 > installed. > This is a virtual machine with 8 virtual CPU / 4 physical CPU / 8 GB Ram, > running on > an OpenNebula cluster. The VM freeze apparantly randomly (from 1 to > 10 times a day), during > approximatively 1 minute then come back without any manual action or > reboot. > I tried to reinstall the VM and the same issue occurs. This is the > most active VM of the OpenNebula cluster. > The other VM of the Cluster from the same vm template does not have the > issue. > The kernel trace is not exactly the same each time, but the behavior > seems the same. Let me know if I > need to update each one. > I did not see any relevant log on the OpenNebula worker (hypervisor), > which have these > packages installed: > > root@one-w-2-th3:~# dpkg -l | grep libvirt > ii libvirt-clients 5.0.0-4+deb10u1 > amd64 Programs for the libvirt library > ii libvirt-daemon 5.0.0-4+deb10u1 > amd64 Virtualization daemon > ii libvirt-daemon-system 5.0.0-4+deb10u1 > amd64 Libvirt daemon configuration files > ii libvirt0:amd64 5.0.0-4+deb10u1 > amd64 library for interfacing with different virtualization > systems > root@one-w-2-th3:~# dpkg -l | grep qemu > ii ipxe-qemu 1.0.0+git-20190125.36a4c85-1 > all PXE boot firmware - ROM images for qemu > ii qemu-block-extra:amd64 1:3.1+dfsg-8+deb10u8 > amd64 extra block backend modules for qemu-system and > qemu-utils > ii qemu-kvm 1:3.1+dfsg-8+deb10u8 > amd64 QEMU Full virtualization on x86 hardware > ii qemu-system-common 1:3.1+dfsg-8+deb10u8 > amd64 QEMU full system emulation binaries (common files) > ii qemu-system-data 1:3.1+dfsg-8+deb10u8 > all QEMU full system emulation (data files) > ii qemu-system-gui 1:3.1+dfsg-8+deb10u8 > amd64 QEMU full system emulation binaries (user interface and > audio support) > ii qemu-system-x86 1:3.1+dfsg-8+deb10u8 > amd64 QEMU full system emulation binaries (x86) > ii qemu-utils 1:3.1+dfsg-8+deb10u8 > amd64 QEMU utilities > root@one-w-2-th3:~# dpkg -l | grep nebula > ii opennebula-common 5.12.0.1-1.ce > all Common OpenNebula package shared by various components > (Community Edition) > ii opennebula-common-onescape 5.12.0.1-1.ce > all Helpers for OpenNebula OneScape project (Community > Edition) > ii opennebula-node 5.12.0.1-1.ce > all Services for OpenNebula KVM node (Community Edition) > root@one-w-2-th3:~# uname -a --- Adrien Trémot Admin systèmes réseaux SI