Every time I start/stop a KVM, the libvirtd 3.0.0-4 throws the following error in syslog:
libvirtd[3145]: 2018-08-07 21:00:19.699+0000: 3145: \
error : qemuMonitorIO:710 : internal error: \
End of file from qemu m onitor
virtlogd[2753]: 2018-08-07 21:00:19.901+0000: 2753: \
error : virNetSocketReadWire:1801 : \
End of file while reading data: Input/output error
Does anyone experience the same problem?
Probably you are missing the driver:
yum -y install libvirt-daemon-driver-qemu && systemctl restart libvirtd
In my case, I have to remove nat related modules from /etc/modprobe.d/nf-blacklist.conf. Otherwise, those module won't be load and virsh network got stuck.
You can check if you have nat modules by lsmod | grep nat, good output:
lsmod | grep nat
nf_nat_masquerade_ipv4 16384 1 ipt_MASQUERADE
iptable_nat 16384 1
nf_nat_ipv4 16384 1 iptable_nat
nf_nat 36864 2 nf_nat_masquerade_ipv4,nf_nat_ipv4
nf_conntrack 155648 6 xt_conntrack,nf_nat_masquerade_ipv4,nf_conntrack_ipv4,nf_nat,ipt_MASQUERADE,nf_nat_ipv4
ip_tables 28672 3 iptable_filter,iptable_nat,iptable_mangle
libcrc32c 16384 3 nf_conntrack,nf_nat,raid456
