[LARTC] strange htb behaviour

Linux Advanced Routing and Traffic Control

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On Monday 06 January 2003 07:01, Tobias Geiger wrote:
> Hello List,
>
> I use HTB in a ~80 users serving router with kernel 2.4.20.
>
> eth0 is the internet interface (half-duplex 1Mbit),
> eth1 the internal interface (100Mbit full duplex)
>
> cause of the fact that the router also serves as a http-proxy (squid) i
> thought setting up the default class on eth1 with the real upload-speed
> (100Mbit) would do the job, i.e. shaping normal stuff to 1Mbit except
> local generated proxy-traffic which should be served with the full
> 100Mbit. All other, forwarded, traffic is marked and so filtered to
> other classes than the default.
> To make it short: It works. when i download s.th. directly from the
> server i get the full bw BUT: all other downloads from the internet
> absolutly break down and don"t regenerate after some time. i have to
> restart the qdiscs! Also i get these strange syslog messages:
>
> Jan  6 06:39:05 Q kernel: htb*c20007 m=2 t=79270 c=8311 pq=0 df=409600
> ql=0 pa=0 f:
> Jan  6 06:39:05 Q kernel: htb*c20008 m=1 t=-59999999 c=66950
> pq=126192148 df=16359424 ql=22 pa=10 f:
> Jan  6 06:39:10 Q kernel: NET: 77 messages suppressed.
> Jan  6 06:39:10 Q kernel: HTB: mindelay=500, report it please !
> Jan  6 06:39:10 Q kernel: htb*g j=126187316
> Jan  6 06:39:10 Q kernel: htb*r7 m=0
> Jan  6 06:39:10 Q kernel: htb*r6 m=0
>
> later also:
>
> Jan  6 06:40:05 Q kernel: NET: 518 messages suppressed.
> Jan  6 06:40:05 Q kernel: HTB: suspicious delay in wait_tree
> d=-1644459092 cl=20008 h=1
> Jan  6 06:40:10 Q kernel: NET: 518 messages suppressed.
> Jan  6 06:40:10 Q kernel: HTB: suspicious delay in wait_tree
> d=-1644459092 cl=20008 h=1
>
>
> I can't really imagine what causes this strange behaviour, except
> perhaps the r2q/quantum settings with which i played around a little
> bit, but just because the defaults caused also warning-messages in
> syslog. perhaps these r2q/quantum parameters need tuning ?!
> I'll attach my shell-script so you can look at it yourself,
> thank you very much for any hint.
You are not the first one to notice this.  But I have no solution/answer.  
Maybe Devik does ?

Stef

-- 

stef.coene@docum.org
 "Using Linux as bandwidth manager"
     http://www.docum.org/
     #lartc @ irc.oftc.net



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