Date: Mon, 28 Jan 2008 23:30:04 GMT From: Robert Jenssen <robertjenssen@ozemail.com.au> To: freebsd-bugs@FreeBSD.org Subject: Re:kern/119696: [irq] [ral] ral device causes massive interrupt storm sometimes Message-ID: <200801282330.m0SNU42o080898@freefall.freebsd.org>
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The following reply was made to PR kern/119696; it has been noted by GNATS.
From: Robert Jenssen <robertjenssen@ozemail.com.au>
To: bug-followup@freebsd.org
Cc:
Subject: Re:kern/119696: [irq] [ral] ral device causes massive interrupt storm sometimes
Date: Tue, 29 Jan 2008 09:54:06 +1100
Hi,
For two years I have been successfully using an Ralink Wireless Ethernet card
with a Belkin F1PI241EGau wireless router under FreeBSD 6. After upgrading to
FreeBSD 7 RC1 the card doesn't reliably connect to the router at bootup.
Perhaps the problem is related to this PR? I am not sure how to diagnose
an "interrupt storm". There is nothing relevant in /var/log/messages.
Rebooting (sometimes multiple times) fixes the problem. As you can see in the
following example, simply restarting ral0 is not sufficient. I have not seen
this problem when booting into Win2K.
Regards,
Rob Jenssen
For example (SSID blanked):
# uname -a
FreeBSD kraken.wollstonecraft 7.0-RC1 FreeBSD 7.0-RC1 #0: Mon Jan 28
18:24:20 EST 2008 root@kraken.wollstonecraft:/usr/obj/usr/src/sys/KRAKEN i386
# dmesg | grep ral0
ral0: <Ralink Technology RT2560> mem 0xf2004000-0xf2005fff irq 22 at device
6.0 on pci2
ral0: MAC/BBP RT2560 (rev 0x04), RF RT2525
ral0: Ethernet address: 00:11:50:63:cd:47
ral0: [ITHREAD]
# pciconf -lv
.
.
ral0@pci0:2:6:0: class=0x028000 card=0x700a1799 chip=0x02011814
rev=0x01 hdr=0x00
vendor = 'Ralink Technology, Corp'
device = '0x03011814 Zonet ZEW1601 (Ralink Chipset) 802.11b/g WLAN
Card'
class = network
# ifconfig ral0 list scan
SSID BSSID CHAN RATE S:N INT CAPS
Ear########... 00:12:bf:25:34:6b 10 54M -63:-95 100 EPS WPA
# sudo /etc/rc.d/netif restart ral0
Starting wpa_supplicant.
ral0: no link .............. giving up
ral0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500
ether 00:11:50:63:cd:47
media: IEEE 802.11 Wireless Ethernet autoselect (DS/1Mbps)
status: no carrier
ssid Ear##################### channel 10 (2457 Mhz 11g)
authmode WPA privacy ON deftxkey UNDEF txpower 50 bmiss 7
scanvalid 60 bgscan bgscanintvl 300 bgscanidle 250 roam:rssi11g 7
roam:rate11g 5 protmode CTS roaming MANUAL
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