network locks up with udp traffic

[Adrian Chadd]

Hi,

When this next happens, please do this as root:

procstat -ka

That'll hopefully provide enough information to figure out which
processes are blocking where and how they got there.



-a


On 23 January 2015 at 06:27, Dmitry Sivachenko <trtrmitya at gmail.com> wrote:
> Hello!
>
> I am using FreeBSD-10/stable.  We have a program at work that transmits data via UDP.
> When I run several instances of this program simultaneously, after a few seconds network stops working.
> If I login from console, I see some network daemons like ntpd, snmpd are in "*udp" state.
>
> If I try to deal with network interface (ifconfig igb0 for instance), ifconfig utility stuck in "L" state (Marks a process that is waiting to acquire a lock.).
> I found the only way to fix that: reboot.
>
> What can be the cause for such a behaviour?
>
> Thanks.
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