Just compiled a 2.5.71 with the same config as a previously
OK 2.5.70....
Unable to handle kernel NULL pointer dereference at virtual address 0000002c
printing eip:
c03ae559
*pde = 00000000
Oops: 0000 [#1]
CPU: 0
EIP: 0060:[<c03ae559>] Not tainted
EFLAGS: 00010202
EIP is at register_netdevice+0x33/0x1b6
eax: 00000001 ebx: 00000000 ecx: c05070a0 edx: 00000000
esi: 00000000 edi: df899800 ebp: dd1edf68 esp: dd1edf1c
ds: 007b es: 007b ss: 0068
Process vtund (pid: 606, threadinfo=dd1ec000 task=de7e1900)
Stack: df899800 c028cf0a 00000000 df899a20 00000000 df899800 dd1edf68 c02e31f6
00000000 df899800 c02e3036 ddeac380 bffffb70 dd1ec000 dd1edf68 c02e3302
ddeac380 dd1edf68 00000020 00000000 00000000 00000000 00000000 00001002
Call Trace:
[<c028cf0a>] misc_open+0x0/0x2b6
[<c02e31f6>] tun_set_iff+0x15a/0x18a
[<c02e3036>] tun_setup+0x0/0x66
[<c02e3302>] tun_chr_ioctl+0xdc/0x134
[<c0161411>] sys_ioctl+0x115/0x29c
[<c010a9c7>] syscall_call+0x7/0xb
I've seen some changes in TUN in the release notes...
Paul