kern/72286: altq queueing in combination with bfe(4) network card results in the speed reduced by a factor of 2

[Alexander Usov]

>Number:         72286
>Category:       kern
>Synopsis:       altq queueing in combination with bfe(4) network card results in the speed reduced by a factor of 2
>Confidential:   no
>Severity:       non-critical
>Priority:       medium
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Sun Oct 03 20:20:27 GMT 2004
>Closed-Date:
>Last-Modified:
>Originator:     Alexander Usov
>Release:        5.3-BETA7
>Organization:
KVI
>Environment:
FreeBSD kvip55.lan 5.3-BETA7 FreeBSD 5.3-BETA7 #1: Sat Oct  2 20:36:16 CEST 2004     root at kvip88.kvi.nl:/usr/obj/usr/src/sys/KVIP88  i386
>Description:
Turning on altq filtering using for example following 2 lines in pf.conf:
altq on bfe0 priq bandwidth 350Kb queue {q}
queue q priority 1 priq(default)

and doing some upload from the pc results in the outgoing traffic limited by approx 160-170Kbit/s:
$ pfctl -vvsq
queue q priq( default )
  [ pkts:       6515  bytes:    7183041  dropped pkts:      0 bytes:      0 ]
  [ qlength:   4/ 50 ]
  [ measured:    18.2 packets/s, 162.56Kb/s ]

The same pf.conf was checked on 2 other systems: OpenBSD-current on the same hardware and 5.3-BETA7 on different machine with very close configuration. In both cases the problem is not reproduced.
>How-To-Repeat:
Find Broadcom 4401 network card and turn on queueing on it.
>Fix:
None.
>Release-Note:
>Audit-Trail:
>Unformatted: