Comment 1 for bug 200142

I have this panic pretty often when there is wifi traffic.

[55139.617854] BUG: unable to handle kernel NULL pointer dereference at virtual address 00000014
[55139.617916] printing eip: d0bb1c72 *pdpt = 0000000004238001 *pde = 0000000000000000
[55139.617990] Oops: 0002 [#1] SMP
[55139.618029] Modules linked in: netconsole configfs aes_i586 geode_aes aes_generic nls_iso8859_1 nls_cp437 vfat fat loop ip6table_filter iptable_raw ipt_ULOG ipt_TTL ipt_ttl ipt_TOS ipt_tos ipt_SAME ipt_REJECT ipt_REDIRECT ipt_recent ipt_owner ipt_NETMAP ipt_MASQUERADE ipt_LOG ipt_iprange ipt_ECN ipt_ecn ipt_CLUSTERIP ipt_ah ipt_addrtype nf_nat_tftp nf_nat_snmp_basic nf_nat_sip nf_nat_pptp nf_nat_proto_gre nf_nat_irc nf_nat_h323 nf_nat_ftp nf_nat_amanda ts_kmp nf_conntrack_amanda nf_conntrack_tftp nf_conntrack_sip nf_conntrack_proto_sctp nf_conntrack_pptp nf_conntrack_proto_gre nf_conntrack_netlink nf_conntrack_netbios_ns nf_conntrack_irc nf_conntrack_h323 nf_conntrack_ftp xt_tcpmss xt_pkttype xt_physdev xt_NFQUEUE xt_NFLOG xt_multiport xt_MARK xt_mark xt_mac xt_limit xt_length xt_helper xt_hashlimit ip6_tables xt_dccp xt_conntrack snd_pcm_oss snd_mixer_oss snd_pcm async_memcpy async_tx xor
rt61pci_interrupt+0x13f/0x220 [rt61pci]
[55139.620871] [<c016da50>] handle_IRQ_event+0x30/0x60
[55139.620938] [<c016f3ec>] handle_level_irq+0x7c/0xf0
[55139.620999] [<c010a93b>] do_IRQ+0x3b/0x70
[55139.621075] [<c0108dff>] common_interrupt+0x23/0x28
[55139.621181] [<c0136c30>] __do_softirq+0x60/0x110
[55139.621268] [<c0136d35>] do_softirq+0x55/0x60
[55139.621310] [<c013701d>] irq_exit+0x6d/0x80
[55139.621345] [<c010a940>] do_IRQ+0x40/0x70
common_interrupt+0x23/0x28
[55139.621548] [<c01d7070>] write_sysrq_trigger+0x0/0x30
[55139.621622] [<c033041d>] _spin_unlock_irqrestore+0xd/0x20
[55139.621675] [<c01d709b>] write_sysrq_trigger+0x2b/0x30
[55139.621804] [<c01d09f3>] proc_reg_write+0x63/0xa0
[55139.621876] [<c01d0990>] proc_reg_write+0x0/0xa0
[55139.621919] [<c019acc9>] vfs_write+0xb9/0x170
[55139.621991] [<c019b3f1>] sys_write+0x41/0x70
[55139.622059] [<c010839a>] sysenter_past_esp+0x6b/0xa1
[55139.622189] =======================
[55139.622216] Code: fe 0f 0b eb fe 8d 74 26 00 0f 0b eb fe 8d b6 00 [55139.623044] Kernel panic - not syncing: Fatal exception in interrupt

uname -a
Linux tefal 2.6.24-12-server #1 SMP Wed Mar 12 23:34:17 UTC 2008 i686 GNU/Linux

modinfo rt61pci filename: /lib/modules/2.6.24-12-server/kernel/drivers/net/wireless/rt2x00/rt61pci.ko
license: GPL
firmware: rt2661.bin
firmware: rt2561s.bin
firmware: rt2561.bin
description: Ralink RT61 PCI & PCMCIA Wireless LAN driver.
version: 2.0.10
author: http://rt2x00.serialmonkey.com
srcversion: D71C36F67F7A0F8B005A78F
alias: pci:v00001814d00000401sv*sd*bc*sc*i*
alias: pci:v00001814d00000302sv*sd*bc*sc*i*
alias: pci:v00001814d00000301sv*sd*bc*sc*i*
depends: rt2x00lib,rt2x00pci,mac80211,eeprom_93cx6
vermagic: 2.6.24-12-server SMP mod_unload 686

Here is how I get panic messages;
My box is a router, and it is connected to the desktop via wired ethernet.
# On the router - substitute the IP of the desktop
sudo modprobe -v netconsole netconsole=@/,@10.36.36.36/
# On the desktop
netcat -u -l -p 6666