Date: Thu, 7 Aug 2008 15:33:24 GMT From: David Gurvich <david.gurvich@verizon.net> To: freebsd-gnats-submit@FreeBSD.org Subject: kern/126339: ipw driver drops the connection Message-ID: <200808071533.m77FXOqW007196@www.freebsd.org> Resent-Message-ID: <200808071540.m77Fe1PT007117@freefall.freebsd.org>
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>Number: 126339 >Category: kern >Synopsis: ipw driver drops the connection >Confidential: no >Severity: non-critical >Priority: low >Responsible: freebsd-bugs >State: open >Quarter: >Keywords: >Date-Required: >Class: sw-bug >Submitter-Id: current-users >Arrival-Date: Thu Aug 07 15:40:01 UTC 2008 >Closed-Date: >Last-Modified: >Originator: David Gurvich >Release: 7-STABLE >Organization: none >Environment: FreeBSD Lucifer 7.0-STABLE FreeBSD 7.0-STABLE #0: Tue Aug 5 16:01:18 EDT 2008 david@Lucifer:/usr/obj/usr/src/sys/T23_LUCI i386 >Description: >From time to time the ipw driver drops the connection. Not each time the connection is dropped, occasionally the following error: Aug 6 00:13:38 Lucifer kernel: ipw0: link state changed to DOWN Aug 6 00:16:59 Lucifer kernel: ipw0: link state changed to UP Aug 6 00:16:59 Lucifer kernel: ipw0: firmware error Aug 6 00:16:59 Lucifer kernel: ipw0: link state changed to DOWN Restarting netif, bringing ipw down&up, regains the connection. Here is a typical set from /var/log/messages : Aug 7 10:49:43 Lucifer kernel: ipw0: link state changed to DOWN Aug 7 10:49:45 Lucifer kernel: ipw0: link state changed to UP Then I restart the interface: Aug 7 10:51:29 Lucifer kernel: ipw0: link state changed to DOWN Aug 7 10:51:54 Lucifer kernel: ipw0: link state changed to UP Aug 7 10:51:54 Lucifer dhclient: New IP Address (ipw0): 192.168.1.45 Aug 7 10:51:54 Lucifer dhclient: New Subnet Mask (ipw0): 255.255.255.0 Aug 7 10:51:54 Lucifer dhclient: New Broadcast Address (ipw0): 255.255.255.255 Aug 7 10:51:54 Lucifer dhclient: New Routers (ipw0): 192.168.1.1 Aug 7 10:51:54 Lucifer dhclient: New IP Address (ipw0): 192.168.1.45 Aug 7 10:51:54 Lucifer dhclient: New Subnet Mask (ipw0): 255.255.255.0 Aug 7 10:51:54 Lucifer dhclient: New Broadcast Address (ipw0): 255.255.255.255 Aug 7 10:51:54 Lucifer dhclient: New Routers (ipw0): 192.168.1.1 I'm not sure if there is a duplicate set of lines in the log file or if there are two instances for getting the routing set up. >How-To-Repeat: Turn the machine on, connect wirelessly, wait random interval. At some point there will be messages in the log file about ipw0 link state changed to DOWN then UP. >Fix: I've been considering a script to automatically bring ipw0 down/up every minute. Seems insane as many days the connection is maintained for over an hour at a time. >Release-Note: >Audit-Trail: >Unformatted:
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