[Openswan Users] BUG: unable to handle kernel NULL pointer -- 2.6.33 w/ |KLIPS

[Lawrence Manning]

Hi there,

I'm seeing a strange kernel panic at ipsec start on the following:

Kernel 2.6.32.26 with Ubuntu 10.4 LTS patches, Openswan 2.6.33.  Usual hardware, intel dual core with e1000 NICs.  Not 100% certain that the panic is within openswan, but it happens when it is started.  Oddly it seems intermittent.  Sometimes everything starts up just fine.

Using KLIPS (THANKS for the forward port to 2.6.32!)

Any help greatly appreciated. :)

Panic is as follows...

BUG: unable to handle kernel NULL pointer dereference at 000000d0
IP: [<c11e24a8>] netif_receive_skb+0x7f/0x2a4
*pdpt = 00000000314b3001 *pde = 0000000000000000 
Oops: 0000 [#1] SMP 
last sysfs file: /sys/kernel/uevent_seqnum
Modules linked in: ipsec deflate serpent blowfish twofish twofish_common ecb cbc md5 sha256_generic sha512_generic des_generic aes_i586 aes_generic geode_aes ppp_deflate zlib_deflate bsd_comp cryptomgr aead pcompress crypto_blkcipher crc32c libcrc32c crypto_hash crypto_algapi uio mlx4_core e1000e libphy sungem_phy 8390 i2c_algo_bit i2c_core mdio ssb mii tun nf_nat_pptp nf_nat_proto_gre nf_conntrack_pptp nf_conntrack_proto_gre nf_nat_irc nf_conntrack_irc nf_nat_ftp nf_conntrack_ftp xt_mod xt_CONNMARK xt_length xt_tcpudp xt_mark xt_owner xt_iprange xt_dscp xt_ipp2p xt_connmark xt_multiport xt_state xt_NOTRACK xt_MARK xt_DSCP xt_CLASSIFY xt_ACCOUNT compat_xtables ipt_MASQUERADE ipt_REDIRECT ipt_REJECT ipt_LOG iptable_raw iptable_mangle iptable_nat nf_nat nf_conntrack_ipv4 nf_conntrack nf_defrag_ipv4 iptable_filter ip_tables x_tables ppp_async crc_ccitt ppp_synctty ppp_generic slhc bonding 8021q usb_storage vfat msdos fat loop usbhid raid1 ahci uhci_hcd ehci_hcd usbcore [last unloaded: ip_queue]

Pid: 6953, comm: logipsecevent.p Not tainted (2.6.32.26+drm33.12-0-smp #1) 
EIP: 0060:[<c11e24a8>] EFLAGS: 00010202 CPU: 0
EIP is at netif_receive_skb+0x7f/0x2a4
EAX: 00000000 EBX: f5b3db40 ECX: 5ed8bbde EDX: 121829d8
ESI: c26039e0 EDI: c2603a00 EBP: f177bf18 ESP: f177befc
 DS: 007b ES: 007b FS: 00d8 GS: 0000 SS: 0068
Process logipsecevent.p (pid: 6953, ti=f177a000 task=f6a2ab10 task.ti=f177a000)
Stack:
 00000fa0 00000001 00000000 00000000 00000001 c26039e0 c2603a00 f177bf34
<0> c11e2d7a ffff86af 00000040 c2603a00 00000100 c26039f4 f177bf5c c11e2f57
<0> 00000040 00000000 0000012b ffff86b1 f155c240 00000003 00000100 00000001
Call Trace:
 [<c11e2d7a>] ? process_backlog+0x7f/0x97
 [<c11e2f57>] ? net_rx_action+0x76/0x130
 [<c102d368>] ? __do_softirq+0x80/0xf3
 [<c102d40c>] ? do_softirq+0x31/0x3c
 [<c102d48e>] ? irq_exit+0x2d/0x2f
 [<c100a27b>] ? do_IRQ+0x7d/0x93
 [<c1008769>] ? common_interrupt+0x29/0x30
Code: d2 85 c0 0f 85 3d 02 00 00 83 bb 80 00 00 00 00 75 0c 8b 43 14 8b 40 48 89 83 80 00 00 00 c7 45 ec 00 00 00 00 8b 43 14 89 45 f0 <8b> b0 d0 00 00 00 85 f6 0f 84 9d 00 00 00 0f b7 96 be 00 00 00 
EIP: [<c11e24a8>] netif_receive_skb+0x7f/0x2a4 SS:ESP 0068:f177befc
CR2: 00000000000000d0


-- 

Lawrence Manning
Lead Developer

lawrence.manning at smoothwall.net

Smoothwall Ltd
1 John Charles Way, Leeds, LS12 6QA United Kingdom 
Telephone:  USA: 1 800 959 3760  Europe: +44 (0) 8701 999500
www.smoothwall.net

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