Time Machine backups stalled, Listen queue overflow: 151 already in queue awaiting acceptance

[odoyle]

I'm not sure if these are related, but I keep getting stalled time machine backups that don't complete, and a bunch of these messages in the freenas logs:

kernel: sonewconn: pcb 0xfffffe03d1482ab8: Listen queue overflow: 151 already in queue awaiting acceptance

There are currently two bug reports, and they seem to reference adjusting kern.ipc.somaxconn to 1024 but I have no idea where I am supposed to do this? Help?

https://bugs.freenas.org/issues/3983
https://bugs.pcbsd.org/issues/4863

My system:
Build FreeNAS-9.2.1.7-RELEASE-x64 (fdbe9a0)
Platform Intel(R) Core(TM) i3-4150 CPU @ 3.50GHz
Board: Supermicro X10SLL
RAM: Crucial 8GB x 2 1600 Mhz ECC UDIMM
Drives: 2 WD 2TB WD20EZRX and 2 Seagate 2TB ST2000DM001
Nothing really special.. I have CIFS and AFP for time machine, also, jails for owncloud, transmission, and Plex

 

[dlavigne]

There are currently two bug reports, and they seem to reference adjusting kern.ipc.somaxconn to 1024 but I have no idea where I am supposed to do this?

Use Tunables, with a type of sysctl.

 

[odoyle]

Cool, thanks!