Dear libvirt experts，

I have add some patch as follow.this two patch add buffer size to avoid to produce “nl_recv returned with error:No buffer space available”

1. libvirt-nodedev-Increase-the-netlink-socket-buffer-size-to-t.patch

2. libvirt-util-increase-libnl-buffer-size.patch

but as I set some configuration in /etc/libvirt/libvitd.conf as follows

# Logging level: 4 errors, 3 warnings, 2 information, 1 debug

log_level =2

# Multiple outputs can be defined, they just need to be separated by spaces.

# e.g. to log all warnings and errors to syslog under the libvirtd ident:

log_outputs="2:syslog:libvirtd"

when I input “udevadm trigger” command

[root@localhost ~]# vi /etc/libvirt/libvirtd.conf

[root@localhost ~]# systemctl restart libvirtd

[root@localhost ~]# udevadm trigger

[root@localhost ~]# udevadm trigger

[root@localhost ~]# udevadm trigger

[root@localhost ~]#

then will produce “nl_recv returned with error:No buffer space available”

[root@localhost ~]# tail -f /var/log/messages | grep buffer

Sep  2 22:44:00 localhost libvirtd: 4004: error : virNetlinkEventCallback:699 : nl_recv returned with error: No buffer space available

Sep  2 23:11:33 localhost libvirtd: 4004: error : virNetlinkEventCallback:699 : nl_recv returned with error: No buffer space available

Sep  2 23:11:45 localhost libvirtd: 4004: error : virNetlinkEventCallback:699 : nl_recv returned with error: No buffer space available

So my question is:

When input “udevadm trigger” in terminal, if setting log_level and log_outputs="2:syslog:libvirtd",how to avoid to produce “error virNetlinkEventCallback:699 : nl_recv returned with error: No buffer space available” log information?

I am looking forward to your reply.

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Best Regards,

Jidong Xia

China Mobile (Suzhou) Software Technology Company.cloud computing product department

Tel: (+86) 18896726087

E-Mail：xiajidong@cmss.chinamobile.com