I created a kvm domain,but it always crash after running about a day.
Here are some error messages in libvirtd.log:
2020-08-13 13:46:15.906+0000: 2018: error : qemuMonitorIO:718 : internal error：End of file from qemu monitor
2020-08-13 13:46:15.906+0000: 2018: debug : qemuMonitorIO:765 : Error on monitor internal error：End of file from qemu monitor
and some error messages in the domain's log:
qemu: qemu_thread_create: Resource temporarily unavailable
I have checked the free ram is enough
Run ulimit -a:
[root@localhost ~]# ulimit -a
core file size (blocks, -c) 0
data seg size (kbytes, -d) unlimited
scheduling priority (-e) 0
file size (blocks, -f) unlimited
pending signals (-i) 385903
max locked memory (kbytes, -l) 64
max memory size (kbytes, -m) unlimited
open files (-n) 204800
pipe size (512 bytes, -p) 8
POSIX message queues (bytes, -q) 819200
real-time priority (-r) 0
stack size (kbytes, -s) 1024
cpu time (seconds, -t) unlimited
max user processes (-u) 204800
virtual memory (kbytes, -v) unlimited
file locks (-x) unlimited