Looks like a something wrong with tun driver on 2.6.11
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http://bugme.osdl.org/show_bug.cgi?id=4279
Summary: When I try to start vpnc the net/core/skbuff.c:91 crash
Kernel Version: 2.6.11 vanilla
Status: NEW
Severity: blocking
Owner: shemminger@xxxxxxxx
Submitter: linuxale@xxxxxxxxx
Distribution: FC3
Hardware Environment: Acer Travelmate 529Txv
Software Environment:
Problem Description: When I try to start vpnc the net/core/skbuff.c:91 crash
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Mar 3 14:43:05 localhost kernel: kernel BUG at net/core/skbuff.c:91!
Mar 3 14:43:05 localhost kernel: invalid operand: 0000 [#2]
Mar 3 14:43:05 localhost kernel: PREEMPT
Mar 3 14:43:05 localhost kernel: Modules linked in: tun crc32 serial_cs 8250 se
rial_core psmouse parport_pc lp parport autofs4 af_packet pcmcia ip_conntrack bi
nfmt_misc md5 ipv6 video thermal processor fan button battery ac md usbhid usbmo
use yenta_socket rsrc_nonstatic pcmcia_core ohci_hcd usbcore snd_ali5451 snd_ac9
7_codec snd_pcm snd_timer snd soundcore snd_page_alloc eepro100 mii ide_cd cdrom
reiserfs dm_mod
Mar 3 14:43:05 localhost kernel: CPU: 0
Mar 3 14:43:05 localhost kernel: EIP: 0060:[<c028ce6b>] Not tainted VLI
Mar 3 14:43:05 localhost kernel: EFLAGS: 00010286 (2.6.11)
Mar 3 14:43:05 localhost kernel: EIP is at skb_over_panic+0x3b/0x50
Mar 3 14:43:05 localhost kernel: eax: 0000002e ebx: c80ed960 ecx: c035780c
edx: 00000001
Mar 3 14:43:05 localhost kernel: esi: c084be20 edi: 000000f4 ebp: 000000f4
esp: c7b07f1c
Mar 3 14:43:05 localhost kernel: ds: 007b es: 007b ss: 0068
Mar 3 14:43:05 localhost kernel: Process vpnc (pid: 19368, threadinfo=c7b06000
task=d23b45a0)
Mar 3 14:43:05 localhost kernel: Stack: c033b188 d90e747e 000000f4 000000f4 c03
2155c d90e748a c80ed960 000000f4
Mar 3 14:43:05 localhost kernel: d90e747e cb47d902 00080000 00000000 000
000f4 d57301a0 08057684 d90e74e8
Mar 3 14:43:05 localhost kernel: d57301a0 c7b07f6c 00000001 c7b07fac 080
57684 000000f4 c015da95 d57301a0
Mar 3 14:43:05 localhost kernel: Call Trace:
Mar 3 14:43:05 localhost kernel: [<d90e747e>] tun_chr_writev+0x15e/0x190 [tun]
Mar 3 14:43:05 localhost kernel: [<d90e748a>] tun_chr_writev+0x16a/0x190 [tun]
Mar 3 14:43:05 localhost kernel: [<d90e747e>] tun_chr_writev+0x15e/0x190 [tun]
Mar 3 14:43:05 localhost kernel: [<d90e74e8>] tun_chr_write+0x38/0x40 [tun]
Mar 3 14:43:05 localhost kernel: [<c015da95>] vfs_write+0x155/0x160
Mar 3 14:43:05 localhost kernel: [<c015db71>] sys_write+0x51/0x80
Mar 3 14:43:05 localhost kernel: [<c0103239>] sysenter_past_esp+0x52/0x75
Mar 3 14:43:05 localhost kernel: Code: c0 0f 44 c2 89 44 24 10 8b 44 24 1c 89 4
4 24 0c 8b 41 60 c7 04 24 88 b1 33 c0 89 44 24 08 8b 44 24 20 89 44 24 04 e8 e5
d7 e8 ff <0f> 0b 5b 00 13 8b 33 c0 83 c4 14 c3 89 f6 8d bc 27 00 00 00 00
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