With kernel 2.6.23.9

BUG: unable to handle kernel paging request at virtual address 666565d1
 printing eip:
*pde = 00000000
Oops: 0000 [#1]
Modules linked in: cls_fw sch_prio sch_htb iptable_nat xt_limit xt_state ipt_REJECT xt_tcpudp ipt_LOG xt_DSCP xt_dscp xt_mark nf_conntrack_ipv4 xt_CONNMARK xt_MARK iptable_mangle iptable_filter ip_tables x_tables nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack nfnetlink ipv6 hostap_pci i2c_viapro via686a hostap ieee80211_crypt evdev ide_cd
CPU:    0
EIP:    0060:[<e08fa967>]    Not tainted VLI
EFLAGS: 00010202   (2.6.23.9 #4)
EIP is at hostap_remove_interface+0xe/0x7d [hostap]
eax: 00000001   ebx: 6665642d   ecx: 00000001   edx: 00000000
esi: 00000000   edi: dfd31400   ebp: def61280   esp: d5ffdef4
ds: 007b   es: 007b   fs: 0000  gs: 0033  ss: 0068
Process rmmod (pid: 5170, ti=d5ffc000 task=d641dab0 task.ti=d5ffc000)
Stack: 6f697270 defa2484 e090aaa3 e08d4000 defa2000 dfd31400 e090bdcc dfd31400 
       e0914190 c03eab20 d5ffc000 c0218b48 dfd31448 c02639f7 dfd31448 e0914190 
       c0263dcf e0914190 00000000 c02635e9 e09143e0 e0914160 bfa9f3c0 c0218bdd 
Call Trace:
 [<e090aaa3>] prism2_free_local_data+0x33/0x1f5 [hostap_pci]
 [<e090bdcc>] prism2_pci_remove+0x3f/0x82 [hostap_pci]
 [<c0218b48>] pci_device_remove+0x16/0x35
 [<c02639f7>] __device_release_driver+0x6e/0x8b
 [<c0263dcf>] driver_detach+0x59/0x96
 [<c02635e9>] bus_remove_driver+0x57/0x75
 [<c0218bdd>] pci_unregister_driver+0xc/0x45
 [<c01309be>] sys_delete_module+0x154/0x17a
 [<c013f4f6>] remove_vma+0x31/0x36
 [<c0103b56>] sysenter_past_esp+0x5f/0x85
 [<c0320000>] svc_process+0x19a/0x696
 =======================
Code: eb 13 31 c0 eb 0f 89 d0 83 c8 01 66 89 44 24 26 e9 2a fe ff ff 83 c4 28 5b 5e 5f 5d c3 56 89 d6 53 89 c3 85 db 89 c8 74 6e 85 c0 <8b> 8b a4 01 00 00 74 17 8b 11 8b 41 04 89 42 04 89 10 c7 41 04 
EIP: [<e08fa967>] hostap_remove_interface+0xe/0x7d [hostap] SS:ESP 0068:d5ffdef4