Re: NFS boot fails with ip_output.c rev 1.261

[Roy Marples <roy%marples.name@localhost>]

On 16/09/2016 13:43, Rin Okuyama wrote:
> NFS boot fails with ip_output.c rev 1.261 with my ERLITE (evbmips64-eb):
> 
>   root on cnmac0
>   nfs_boot: trying BOOTP
>   cnmac0: link state DOWN (was UNKNOWN)
>   cnmac0: link state UP (was DOWN)
>   nfs_boot: BOOTP next-server: 192.168.10.128
>   nfs_boot: my_name=erlite
>   nfs_boot: my_addr=192.168.10.131
>   nfs_boot: my_mask=255.255.255.0
>   nfs_boot: gateway=192.168.10.1
>   nfs_boot: sosend: 49
>   nfs_boot: sosend: 49
>   nfs_boot: sosend: 49
>   nfs_boot: mountd error=49
>   nfs_boot: mountd `cubietruck:/exports/erlite', error=49
>   cannot mount root, error = 49
>   root device (default cnmac0):
> 
> In the kernel configuration file, NFS_BOOT_BOOTP option is specified
> instead of NFS_BOOT_DHCP in the original configuration file.
> 
> By reverting ip_output.c to rev 1.260, the system boots up normally.
> And the root directory can be mounted from other (non-NetBSD) hosts.

Sounds like NFS boot needs to wait for IN_IFF_TENTATIVE to clear from
the address.

Roy