SYSTEM MAP: /boot/System.map-2.6.28-15-generic
DEBUG KERNEL: /lib/modules/2.6.28-15-generic/vmlinux (2.6.28-15-generic)
    DUMPFILE: /var/log/vmcore-ipsec2
        CPUS: 1
        DATE: Mon Oct 26 18:35:48 2009
      UPTIME: 00:05:59
LOAD AVERAGE: 0.01, 0.22, 0.14
       TASKS: 209
    NODENAME: ubuntu
     RELEASE: 2.6.28-15-generic
     VERSION: #52 SMP Fri Oct 16 00:05:37 BRT 2009
     MACHINE: i686  (2298 Mhz)
      MEMORY: 1 GB
       PANIC: "[  359.820013] Oops: 0000 [#1] SMP " (check log for details)
         PID: 3232
     COMMAND: "ipsec"
        TASK: f5888c90  [THREAD_INFO: f5880000]
         CPU: 0
       STATE: TASK_RUNNING (PANIC)

crash> bt -a
PID: 3232   TASK: f5888c90  CPU: 0   COMMAND: "ipsec"
 #0 [f5881778] crash_kexec at c016b3f3
 #1 [f58817cc] oops_end at c0501122
 #2 [f58817e4] die at c0106e5c
 #3 [f5881800] do_page_fault at c05029fc
 #4 [f5881950] error_code (via page_fault) at c0500720
    EAX: f632bc4c  EBX: 823a3cd2  ECX: 00000080  EDX: f632bc4c  EBP: f62ca100
    DS:  007b      ESI: f632bc4c  ES:  007b      EDI: f62f4800
    CS:  0060      EIP: f7e4892c  ERR: ffffffff  EFLAGS: 00210286
 #5 [f5881984] des_ede3_cbc_encrypt at f7e4892c
 #6 [f588199c] _3des_cbc_encrypt at f7e45bf4
 #7 [f58819c8] ipsec_alg_esp_encrypt at f7e45ad4
 #8 [f5881a00] ipsec_rcv_esp_decrypt at f7e41000
 #9 [f5881a28] ipsec_rcv_decrypt at f7e2e6f3
#10 [f5881a44] ipsec_rsm at f7e2f922
#11 [f5881a60] klips26_rcv_encap at f7e2fc03
#12 [f5881a7c] klips26_udp_encap_rcv at f7e2ff9f
#13 [f5881aa4] udp_queue_rcv_skb at c0476fd0
#14 [f5881acc] __udp4_lib_rcv at c0477726
#15 [f5881b58] udp_rcv at c0477add
#16 [f5881b60] ip_local_deliver_finish at c0453ed3
#17 [f5881b74] ip_local_deliver at c045404a
#18 [f5881b90] ip_rcv_finish at c045384b
#19 [f5881bd0] ip_rcv at c0453c62
#20 [f5881bf8] netif_receive_skb at c0432661
#21 [f5881c44] e1000_clean_rx_irq at f7d1a4de
#22 [f5881cb4] e1000_clean at f7d1e759
#23 [f5881cdc] net_rx_action at c043214a
#24 [f5881d04] __do_softirq at c013f291
#25 [f5881d38] do_softirq at c013f3c8
#26 [f5881d44] irq_exit at c013f540
#27 [f5881d4c] do_IRQ at c010684e
#28 [f5881d74] common_interrupt at c01051ee
    EAX: 00000000  EBX: fffb2000  ECX: c07b9ec8  EDX: fffb2000  EBP: f5881dcc
    DS:  007b      ESI: c06841a0  ES:  007b      EDI: fffb2174
    CS:  0060      EIP: c0122499  ERR: ffffffc4  EFLAGS: 00200246
#29 [f5881da8] native_set_pte_at at c0122499
#30 [f5881db0] kunmap_atomic at c01273f6
#31 [f5881dd0] do_wp_page at c01a16af
#32 [f5881e18] handle_mm_fault at c01a22cb
#33 [f5881e64] do_page_fault at c05028b8
#34 [f5881fb4] error_code (via page_fault) at c0500720
    EAX: 0805df68  EBX: b7f97ff4  ECX: b7f7b0d4  EDX: b7f7b0b4
    DS:  007b      ESI: b7f98670  ES:  007b      EDI: b7f98658
    SS:  007b      ESP: bf995698  EBP: bf995850
    CS:  0073      EIP: b7f7db76  ERR: ffffffff  EFLAGS: 00210202