Date: Mon, 10 Jan 2011 09:22:58 +0100 From: Bernhard Schmidt <bschmidt@freebsd.org> To: Anton Shterenlikht <mexas@bristol.ac.uk> Cc: freebsd-current@freebsd.org Subject: Re: console freeze after "ifconfig wlan0 scan" with wi(4) pccard device Message-ID: <201101100922.58354.bschmidt@freebsd.org> In-Reply-To: <20110109222228.GA45587@mech-cluster241.men.bris.ac.uk> References: <20110109222228.GA45587@mech-cluster241.men.bris.ac.uk>
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On Sunday, January 09, 2011 23:22:28 Anton Shterenlikht wrote: > On amd64 r217010 laptop (HP Compaq 6715s) > I'm trying to use this wi(4) device: > > wi0: <The Linksys Group, Inc. Instant Wireless Network PC Card> > at port 0x100-0x13f irq 20 function 0 config 1 on pccard0 > > I do > > # ifconfig wlan0 create wlandev wi0 > # ifconfig -a > bge0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500 > > options=8009b<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,VLAN_HWCSUM,LINKSTAT > E> > ether 00:1a:4b:89:4b:4e > inet 192.168.1.102 netmask 0xffffff00 broadcast 192.168.1.255 > media: Ethernet autoselect (100baseTX <full-duplex>) > status: active > lo0: flags=8049<UP,LOOPBACK,RUNNING,MULTICAST> metric 0 mtu 16384 > options=3<RXCSUM,TXCSUM> > inet 127.0.0.1 netmask 0xff000000 > inet6 ::1 prefixlen 128 > inet6 fe80::1%lo0 prefixlen 64 scopeid 0x8 > nd6 options=21<PERFORMNUD,AUTO_LINKLOCAL> > wi0: flags=8802<BROADCAST,SIMPLEX,MULTICAST> metric 0 mtu 2290 > ether 00:06:25:10:56:3b > media: IEEE 802.11 Wireless Ethernet autoselect (autoselect) > status: no carrier > wlan0: flags=8802<BROADCAST,SIMPLEX,MULTICAST> metric 0 mtu 1500 > ether 00:06:25:10:56:3b > media: IEEE 802.11 Wireless Ethernet autoselect (autoselect) > status: no carrier > ssid "" channel 1 (2412 MHz 11b) > country US authmode OPEN privacy OFF txpower 0 bmiss 7 scanvalid 60 > bintval 0 > > But after > > # ifconfig wlan0 up scan > > I get console freeze requiring cold reboot. > No panic, just a LOR: > > wi0: <The Linksys Group, Inc. Instant Wireless Network PC Card> at port > 0x100-0x13f irq 20 function 0 config 1 on pccard0 wlan0: Ethernet address: > 00:06:25:10:56:3b > lock order reversal: > 1st 0xffffff80012be018 wi0_com_lock (wi0_com_lock) @ > /usr/src/sys/net80211/ieee80211_scan.c:806 2nd 0xfffffe0001b8d010 wi0 > (network driver) @ /usr/src/sys/dev/wi/if_wi.c:1083 KDB: stack backtrace: > [..] This is a known LOR, many wireless do have that. It happens right after a scan iteration if there is a network to connect to. > In case it matters I've > > hw.cbb.start_memory="0xf4800000" > > in /boot/loader.conf, according to > http://www.freebsd.org/cgi/query-pr.cgi?pr=115623 Do you by any change have another device you can test the pccard slot with? Also, you might want to try 'ifconfig wlan0 ssid somethingwhichdoesdefinitelynotexist up; ifconfig wlan0 list scan' instead of 'ifconfig wlan0 up scan'. -- Bernhard
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