On Mon, 17 Aug 2026 16:16:02 -0400
Randy Tice <[email protected]> wrote:
> - if (ret < 0 && errno == EAGAIN)
> + if (ret < 0 &&
> + (errno == EAGAIN || errno == EWOULDBLOCK || errno == EINTR)) {
> + /* non-blocking or interrupted */
> return;
> - else if (ret <= 0) {
> + } else if (ret < 0 && (errno == ENOBUFS)) {
> + /* non-fatal transient memory condition */
> + EAL_LOG(ERR, "unexpected error on uevent recv: %s",
> + strerror(errno));
> + return;
> + } else if (ret <= 0) {
> /* connection is closed or broken, can not up again. */
> EAL_LOG(ERR, "uevent socket connection is broken.");
> rte_eal_alarm_set(1, dev_delayed_unregister, NULL);
> --
Since there are multiple error conditions it reads better with single (ret < 0)
if followed
by looking at errno.
PS: if you are getting ENOBUFS, the root cause is not having big enough socket
receive
buffer and/or starving out the core handling control operations.
If you looks a uevent the internal state of devices is corrupted. Probably need
to figure out how to schedule some form of rescanning.
