Date: Tue, 13 Jul 2004 22:58:10 GMT From: Matthias Buelow <mkb@mukappabeta.de> To: freebsd-gnats-submit@FreeBSD.org Subject: misc/69019: wlan (wi) stalling after 2-3 hrs of moderate traffic Message-ID: <200407132258.i6DMwAVX085489@www.freebsd.org> Resent-Message-ID: <200407132300.i6DN0eAa061415@freefall.freebsd.org>
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>Number: 69019
>Category: misc
>Synopsis: wlan (wi) stalling after 2-3 hrs of moderate traffic
>Confidential: no
>Severity: serious
>Priority: medium
>Responsible: freebsd-bugs
>State: open
>Quarter:
>Keywords:
>Date-Required:
>Class: sw-bug
>Submitter-Id: current-users
>Arrival-Date: Tue Jul 13 23:00:40 GMT 2004
>Closed-Date:
>Last-Modified:
>Originator: Matthias Buelow
>Release: 5.2.1-p9
>Organization:
Univ. Wuerzburg
>Environment:
FreeBSD xxx 5.2.1-RELEASE-p9 FreeBSD 5.2.1-RELEASE-p9 #0: Tue Jul 13 18:40:15 CEST 2004 root@xxx:/usr/obj/usr/src/sys/xxx i386
>Description:
I'm using the following wlan PCI card:
wi0: <Intersil Prism2.5> mem 0xcf9ff000-0xcf9fffff irq 5 at device 17.0 on pci0
wi0: 802.11 address: 00:0d:54:aa:62:12
wi0: using RF:PRISM2.5 MAC:ISL3874A(Mini-PCI)
wi0: Intersil Firmware: Primary (1.1.0), Station (1.4.9)
wi0: 11b rates: 1Mbps 2Mbps 5.5Mbps 11Mbps
It works fine but only so for 2-3 hours. At moderate traffic
(80K/s thru a DSL access point, like downloading & building some ports)
after that time, throughput is highly reduced and connections start
stalling.
Reconfiguring the interface doesn't help. New connections start at ca. 50%
the bandwidth it would normally use and deteriorate within a minute
to zero throughput (complete stalling).
A reboot of the machine fixes the problem instantly (for another
2-3 hours).
A comparative installation with a different OS showed no such effects.
Another machine running a different OS beside the machine in question
doesn't show the above effects.
>How-To-Repeat:
I don't know how to reliably reproduce the problem.
It occurs here every time.
>Fix:
None known.
>Release-Note:
>Audit-Trail:
>Unformatted:
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