I’ve got a problem which (IMHO) somehow related to KVM/bridge networking.
In short - host OS (tried SuSE 42.3, SuSE Leap 15.0, Debian 9) freezes completely at random intervals. At first, I blamed JetWay fanless PC with 10 built-in Ethernet interfaces. Recently I reinstalled whole system on another PC with PCI 4-port Ethernet card - and what a surprise - this night machine becomes frozen.
I checked QEMU logs, found only these suspicious records.
… VM log
warning: host doesn’t support requested feature: CPUID.01H:ECX.pdcm [bit 15]
warning: host doesn’t support requested feature: CPUID.01H:ECX.osxsave [bit 27]
main-loop: WARNING: I/O thread spun for 1000 iterations
Jul 12 17:13:36 linrt libvirtd: 2018-07-12 14:13:36.116+0000: 1096: error : qemuMonitorIO:710 : internal error: End of file from qemu monitor
Jul 12 17:13:36 linrt virtlogd: 2018-07-12 14:13:36.318+0000: 1257: error : virNetSocketReadWire:1801 : End of file while reading data: Input/output error
Changing network devices from virtio to rtl don’t change anything. CPU load is very low all the time. RAM consumed by both host OS and VyOS is below 900 MB.
It is possible that my bridge definition is missing something, and that causes freezes of host OS?
iface br2_DMZ inet manual bridge_ports enp18s0 bridge_stp off bridge_waitpot 0 bridge_fd 0.0 auto br2_INT iface br2_INT inet manual bridge_ports enp19s0 bridge_stp off bridge_waitpot 0 bridge_fd 0.0
Thanks in advance for any help.