pppd exception

Unable to handle kernel paging request at virtual address e24cb030
pgd = dee00000
[e24cb030] *pgd=00000000
Internal error: Oops: 5 [#1] PREEMPT
Modules linked in: ppp_async ppp_generic slhc dm_crypt dm_mod pl2303 usbserial
CPU: 0    Not tainted  (2.6.31.5 #1)
PC is at ppp_register_net_channel+0x158/0x20c [ppp_generic]
LR is at ppp_register_net_channel+0x158/0x20c [ppp_generic]
pc : [<bf03d168>]    lr : [<bf03d168>]    psr: 80000013
sp : deed9db8  ip : deed9db8  fp : deed9de4
r10: ded40c94  r9 : 00000003  r8 : c06a58f0
r7 : e24cb004  r6 : dee0d2a0  r5 : 00000000  r4 : bf041588
r3 : 00000002  r2 : deed8000  r1 : 00000101  r0 : 00000102
Flags: Nzcv  IRQs on  FIQs on  Mode SVC_32  ISA ARM  Segment user
Control: 0005397f  Table: 1ee00000  DAC: 00000015
Process pppd (pid: 2287, stack limit = 0xdeed8270)
Stack: (0xdeed9db8 to 0xdeeda000)
9da0:                                                       c0a9a300 c05ac534 
9dc0: 00000000 000005dc ded40c00 df312000 bf047dc8 00000000 deed9e24 deed9de8 
9de0: bf047f14 bf03d020 deed9e0c df312000 df2722a0 00000000 ded40c8c ded40c8c 
9e00: deed9e24 df312000 df3ae060 df312000 00000000 df3ae060 deed9e3c deed9e28 
9e20: c025a6c4 bf047db0 df312014 df2722a0 deed9ebc deed9e40 c025ae7c c025a674 
9e40: deed8000 df3ae060 00000000 00000000 deed9e7c deed9e60 deed9e7c deed9e68 
9e60: c0443064 c0445128 00005423 0004c668 deed9ebc deed9e80 c025975c c0443028 
9e80: deed9ebc deed9e90 c00b6fe4 c023d068 deed9ebc 00000003 0004c668 df312000 
9ea0: df312000 df885c80 deed8000 00053c1c deed9ef4 deed9ec0 c02560fc c025acb8 
9ec0: df308208 df3081a0 00000000 00000001 00000000 df885c80 0004c668 00005423 
9ee0: df885c80 c002db04 deed9f14 deed9ef8 c00c7234 c025593c df885c80 df3a9390 
9f00: 0004c668 df885c80 deed9f7c deed9f18 c00c78fc c00c7210 deed9f3c 00000000 
9f20: df889a80 deed8000 df889a80 df3080d0 deed9f84 deed9f40 c00f3074 c00b6fa8 
9f40: c00d1118 00000006 00000002 00000194 00000001 00000000 c00b788c 00000007 
9f60: 0004c668 00005423 c002db04 deed8000 deed9fa4 deed9f80 c00c7994 c00c73a4 
9f80: c00c6b48 00000000 00051d18 00000007 00053c40 00000036 00053c58 deed9fa8 
9fa0: c002d980 c00c7964 00051d18 00000007 00000007 00005423 0004c668 0004c668 
9fc0: 00051d18 00000007 00053c40 00000036 00000001 00000000 00053c1c 00053c58 
9fe0: 0005526c beadc778 000271e0 4012a77c 60000010 00000007 00000000 00000000 
[<bf03d168>] (ppp_register_net_channel+0x158/0x20c [ppp_generic]) from [<bf047f14>] (ppp_asynctty_open+0x174/0x1b8 [ppp_asyn)
[<bf047f14>] (ppp_asynctty_open+0x174/0x1b8 [ppp_async]) from [<c025a6c4>] (tty_ldisc_open+0x60/0x6c)
[<c025a6c4>] (tty_ldisc_open+0x60/0x6c) from [<c025ae7c>] (tty_set_ldisc+0x1d4/0x354)
[<c025ae7c>] (tty_set_ldisc+0x1d4/0x354) from [<c02560fc>] (tty_ioctl+0x7d0/0x9d4)
[<c02560fc>] (tty_ioctl+0x7d0/0x9d4) from [<c00c7234>] (vfs_ioctl+0x34/0x94)
[<c00c7234>] (vfs_ioctl+0x34/0x94) from [<c00c78fc>] (do_vfs_ioctl+0x568/0x5c0)
[<c00c78fc>] (do_vfs_ioctl+0x568/0x5c0) from [<c00c7994>] (sys_ioctl+0x40/0x64)
[<c00c7994>] (sys_ioctl+0x40/0x64) from [<c002d980>] (ret_fast_syscall+0x0/0x2c)
Code: eb47e6ce eb402ded e3a00001 eb50201c (e597302c) 
Kernel panic - not syncing: Fatal exception in interrupt
[<c0032a78>] (unwind_backtrace+0x0/0xe0) from [<c00434cc>] (panic+0x50/0x120)
[<c00434cc>] (panic+0x50/0x120) from [<c00311fc>] (die+0x158/0x184)
[<c00311fc>] (die+0x158/0x184) from [<c0033ac4>] (__do_kernel_fault+0x6c/0x7c)
[<c0033ac4>] (__do_kernel_fault+0x6c/0x7c) from [<c0445108>] (do_translation_fault+0x74/0x80)
[<c0445108>] (do_translation_fault+0x74/0x80) from [<c002d26c>] (do_DataAbort+0x3c/0x9c)
[<c002d26c>] (do_DataAbort+0x3c/0x9c) from [<c044312c>] (__dabt_svc+0x4c/0x60)
Exception stack(0xdeed9d70 to 0xdeed9db8)
9d60:                                     00000102 00000101 deed8000 00000002 
9d80: bf041588 00000000 dee0d2a0 e24cb004 c06a58f0 00000003 ded40c94 deed9de4 
9da0: deed9db8 deed9db8 bf03d168 bf03d168 80000013 ffffffff                   
[<c044312c>] (__dabt_svc+0x4c/0x60) from [<bf03d168>] (ppp_register_net_channel+0x158/0x20c [ppp_generic])
[<bf03d168>] (ppp_register_net_channel+0x158/0x20c [ppp_generic]) from [<bf047f14>] (ppp_asynctty_open+0x174/0x1b8 [ppp_asyn)
[<bf047f14>] (ppp_asynctty_open+0x174/0x1b8 [ppp_async]) from [<c025a6c4>] (tty_ldisc_open+0x60/0x6c)
[<c025a6c4>] (tty_ldisc_open+0x60/0x6c) from [<c025ae7c>] (tty_set_ldisc+0x1d4/0x354)
[<c025ae7c>] (tty_set_ldisc+0x1d4/0x354) from [<c02560fc>] (tty_ioctl+0x7d0/0x9d4)
[<c02560fc>] (tty_ioctl+0x7d0/0x9d4) from [<c00c7234>] (vfs_ioctl+0x34/0x94)
[<c00c7234>] (vfs_ioctl+0x34/0x94) from [<c00c78fc>] (do_vfs_ioctl+0x568/0x5c0)
[<c00c78fc>] (do_vfs_ioctl+0x568/0x5c0) from [<c00c7994>] (sys_ioctl+0x40/0x64)
[<c00c7994>] (sys_ioctl+0x40/0x64) from [<c002d980>] (ret_fast_syscall+0x0/0x2c)