With kernel 2.6.23.9

BUG: unable to handle kernel NULL pointer dereference at virtual address 0000000
0
 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 i2c_viapro hostap_pci hostap via686a ieee80211_crypt evdev ide_cd
CPU:    0
EIP:    0060:[<d08fa1a6>]    Not tainted VLI
EFLAGS: 00010297   (2.6.23.9 #4)
EIP is at hostap_80211_rx+0x451/0xf87 [hostap]
eax: cecfe4a0   ebx: 00000000   ecx: cfa4263e   edx: 00000000
esi: cfa42634   edi: 00000000   ebp: 00001148   esp: c0409e80
ds: 007b   es: 007b   fs: 0000  gs: 0000  ss: 0068
Process swapper (pid: 0, ti=c0408000 task=c03d7280 task.ti=c0408000)
Stack: 00000000 00000080 00000004 ce289ae0 c0409ebc c0113bbf c044148c c044148c 
       c0441440 c0409f30 cfd51980 00000018 00000100 cecfe484 00001148 00000040 
       000049f0 cecfe000 cfa4dbb0 0000001c cecfe000 cecfe3b0 00000000 cfa4263e 
Call Trace:
 [<c0113bbf>] enqueue_entity+0x1d2/0x1f3
 [<c01278cf>] ktime_get_ts+0x11/0x3a
 [<d08edfd0>] hostap_rx_tasklet+0x11f/0x145 [hostap_pci]
 [<c011b8c4>] tasklet_action+0x32/0x52
 [<c011b82c>] __do_softirq+0x35/0x75
 [<c011b88e>] do_softirq+0x22/0x26
 [<c011babb>] irq_exit+0x29/0x58
 [<c0105e54>] do_IRQ+0x58/0x6c
 [<c012a93d>] tick_notify+0x161/0x220
 [<c0104567>] common_interrupt+0x23/0x28
 [<c0110000>] apply_relocate+0x77/0x95
 [<c023cb88>] acpi_processor_idle+0x22f/0x39b
 [<c0102344>] cpu_idle+0x43/0x5d
 [<c040a9c0>] start_kernel+0x237/0x23c
 [<c040a317>] unknown_bootoption+0x0/0x195
 =======================
Code: 44 24 34 8b 58 1c eb 23 83 bb d8 00 00 00 04 75 18 8b 54 24 5c 8d 83 dc 00 00 00 b9 06 00 00 00 e8 1b 69 91 ef 85 c0 74 18 89 fb <8b> 3b 0f 18 07 90 8b 44 24 34 83 c0 1c 39 c3 75 cc e9 c9 0a 00 
EIP: [<d08fa1a6>] hostap_80211_rx+0x451/0xf87 [hostap] SS:ESP 0068:c0409e80
Kernel panic - not syncing: Fatal exception in interrupt
wlan0ap: SW TICK stuck? bits=0x0 EvStat=8001 IntEn=e018