Checking for network online

[Ratan Gupta]

Hi Johnathan,

Can you ask this in the systemd community?Any workaround if they can offer.

Ratan



On Fri, Feb 18, 2022 at 4:26 AM Johnathan Mantey <
johnathanx.mantey at intel.com> wrote:

> /I/ntel has recently run into an issue regarding a systemd service, and
> we're interested in soliciting feedback from the community.
>
> Issue: systemd-networkd-wait-online.service stalls for 120 seconds when
> the managed NICs do not have a network connection.
>
> TLDR: Should OpenBMC remove systemd-networkd-wait-online.service
> universally?
>
> System Config: All NICs in the system are not connected to an active
> network.
>
> Test Process: The system under test (SUT) has AC removed, and some time
> later AC applied. Wait for BMC/BIOS to boot
>
> Behavior: U-Boot hands control to the Linux boot process, and the
> systemd services are started. When systemd-networkd-wait-online.service
> starts it stalls waiting for the NICs to enter a fully functional state.
> This never happens during the default 120 second timeout period for this
> service. When the timeout elapses, an error message is logged to the
> journal reporting the service exited unsuccessfully.
>
> Issues: This service blocks entry to multi-user.target.
> phosphor-state-manager uses multi-user.target to report the BMC is ready
> to use.
> This is reported via IPMI Get Device ID.
> The Intel BIOS is blocked from booting until
> systemd-networkd-wait-online times out.
> BMC entry to multi-user.target is delayed. Journal entries are created.
>
> Question for the community: Given the negative side effects caused by
> running this service does the community want to have this service
> collectively removed from global build image?
>
> --
> Johnathan Mantey
> Senior Software Engineer
> *azad te**chnology partners*
> Contributing to Technology Innovation since 1992
> Phone: (503) 712-6764
> Email: johnathanx.mantey at intel.com
>
>
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