istgt socket wedge

[MDP]

I have had problems with the istgt becoming wedged requiring a hard reboot.
As the process will not respond to a kill, nor will it clear tcp connections
that have somehow become wedged.
Found this patch: http://osdir.com/ml/freebsd-scsi/2012-03/msg00034.html
I have seen others report this type of problem, but no real solution.
Seems to happen more if there is a hardware drive problem.... or if smart is runnin

 

[MDP]

I also see that the sockets get stuck in a closed state and will continue to pile up.
I have several hundred stuck in the closed state....
The process state is stuck in "uncond"

1583 root 688 44 0 1631M 76072K ucond 0 30:06 0.00% istgt
2379 root 7 44 0 75604K 13284K ucond 2 0:30 0.00% collectd



tcp4 0 0 192.168.149.147.3260 192.168.149.130.51982 CLOSED
tcp4 0 0 192.168.149.147.3260 192.168.149.130.51981 CLOSED
tcp4 0 0 192.168.150.147.2323 192.168.128.200.65246 ESTABLISHED
tcp4 0 0 192.168.149.147.3260 192.168.149.130.51978 CLOSED
tcp4 0 0 192.168.149.147.3260 192.168.149.130.51969 CLOSED
tcp4 0 0 192.168.149.147.3260 192.168.149.130.51964 CLOSED
tcp4 0 0 192.168.149.147.3260 192.168.149.130.51963 CLOSED

 

[James]

That sounds like a bug that should be reported to support.freenas.org