Date: Wed, 24 Nov 2010 00:08:32 +0100 From: Bernhard Schmidt <bschmidt@techwires.net> To: freebsd-stable@freebsd.org Subject: Re: if_wpi crashes when renewing in FreeBSD 8 all versions Message-ID: <201011240008.33176.bschmidt@techwires.net> In-Reply-To: <AANLkTim9=2k_6krtT5x9zJ%2BhB%2BSkE=7tRB35tE6TbXQ6@mail.gmail.com> References: <AANLkTim9=2k_6krtT5x9zJ%2BhB%2BSkE=7tRB35tE6TbXQ6@mail.gmail.com>
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On Tuesday 23 November 2010 22:03:22 Zhihao Yuan wrote: > My laptop is a HP Compaq nc8430, and the wireless card is Intel 3945ABG, > with if_wpi driver. > wpi0: flags=8802<BROADCAST,SIMPLEX,MULTICAST> metric 0 mtu 2290 > ether 00:1b:77:31:1d:74 media: IEEE 802.11 Wireless Ethernet > autoselect (autoselect) status: no carrier > > I can use the wireless correctly when I start the system. But after some > time (depends on your wireless router renewing settings), it can not renew > the DHCP settings. And, if you try to renew it with sudo /etc/rc.d/netif > restart for like more than 2 times, the whole system will crash. > > The interesting thing is, the renewing problem only occurs on the wireless > network with a WPA2 protocol. For the WEP or None-keys network, there is no > problem. For the WPA-EAP network, you can redo the DHCP but not > /etc/rc.d/netif restart. That is a known issue, there is race in our devd/rc-subsystems and especially the way wpa_supplicant get exclusive access to the interface. This leads to all kind of funny results, panics being one of it. I have patches to address the panics but this does not fix the initial issue which is that wpa_supplicant gets started twice. -- Bernhard
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