On 10.12.2015 07:34, Leno Hou wrote:
> 1. When switching CPUs to offline/online in a system more than 128 cpus
> 2. When using virsh to destroy domain in a system with more interface
>
> All of above happens nl_recv returned with error: No buffer space available.
> This patch set socket buffer size to 128K and turn on message peeking for nl_recv,
> as this would solve this problem totally and permanetly.
> LTC-Bugzilla: #133359 #125768
>
> Signed-off-by: Leno Hou <houqy@xxxxxxxxxxxxxxxxxx>
> Cc: Wenyi Gao <wenyi@xxxxxxxxxxxxxxxxxx>
> ---
> src/util/virnetlink.c | 8 ++++++++
> 1 file changed, 8 insertions(+)
>
> diff --git a/src/util/virnetlink.c b/src/util/virnetlink.c
> index 679b48e..c8c9fe0 100644
> --- a/src/util/virnetlink.c
> +++ b/src/util/virnetlink.c
> @@ -696,6 +696,14 @@ virNetlinkEventServiceStart(unsigned int protocol, unsigned int groups)
> goto error_server;
> }
>
> + if (nl_socket_set_buffer_size(srv->netlinknh, 131702, 0) < 0) {
> + virReportSystemError(errno,
> + "%s",_("cannot set netlink socket buffer size to 128k"));
> + goto error_server;
> + }
> +
> + nl_socket_enable_msg_peek(srv->netlinknh);
> +
> if ((srv->eventwatch = virEventAddHandle(fd,
> VIR_EVENT_HANDLE_READABLE,
> virNetlinkEventCallback,
>
I believe this patch appears over and over again. Usually, the problem
was in libnl library we use and this was just a workaround. Can you test
with the latest libnl version (probably even GIT HEAD) and see if that
helps?
Michal
--
libvir-list mailing list
libvir-list@xxxxxxxxxx
https://www.redhat.com/mailman/listinfo/libvir-list