[LARTC] About sockets in "CLOSING" state

[Denis Potapov]

Hi,

Andy Furniss wrote:
> Denis Potapov wrote:
> >Hi,
> >
> >I have met the problem: when I use the shaping discipline 
> >
> >tc qdisc add dev ppp0 parent 1:2 tbf latency 50ms burst 1450 rate 50kbit
> >
> >one of my application (namely, "aMule") starts leaving sockets in
> >"CLOSING" state. These sockets accumulate and do not disappear.
> >Eventually I have so many of these dead sockets that the kernel warns
> >"Out of socket memory" in syslog (That happens when I have more than
> >5000 dead sockets). 
> >
> >When the discipline above canceled the problem disappears. Now the
> >questions. 
> >
> >1. Is it problem of my application (=aMule) or QoS.
> >
> >2. Is there any way to eliminate these "dead" sockets out of kernel
> >   memory, like "kill"?
> >
> >Please, share if you have any ideas.
> 
> Using burst 1450 on tbf will drop all packets > 1449 bytes if your MTU 
> is > 1449 then this could be the problem.

Thanks, that indeed was the problem.

D.