Hi,

I get the following oops when launching ppp on 2.6.0-test1-mm1 
(2.5.75-mm1 was fine, I've not yet tested 2.6.0-test1 itself but can do 
it if necessary). 100% reproductible.
I'm using ppp with pppoatm and the kernel speedtouch driver, but 
previous versions of 2.5 were working fine with the same configuration 
so far, so probably a recent change is to blame...

dmesg and lsmod output are attached. Please let me now if any further 
information/test is needed.

Vincent

---------------------------------------------------------------------
Unable to handle kernel NULL pointer dereference at virtual address 00000026
  printing eip:
c0274d4b
*pde = 00000000
Oops: 0000 [#1]
PREEMPT
CPU:    0
EIP:    0060:[<c0274d4b>]    Not tainted VLI
EFLAGS: 00210206
EIP is at __vcc_connect+0x2b/0x230
eax: 0000000a   ebx: 00000000   ecx: 00000023   edx: c02ed11c
esi: ce241600   edi: 00000000   ebp: 00000023   esp: c857fe60
ds: 007b   es: 007b   ss: 0068
Process pppd (pid: 1198, threadinfo=c857e000 task=c8a17880)
Stack: c1149ad8 c0115e4d c857e000 00000000 cffcf1c0 ce241600 c8ef4080 
c0275007
        ce241600 00000000 00000008 00000023 00200246 00081600 c857e000 
cffcf1c0
        c857fee8 c8ef4080 c0272202 c8ef4080 00000000 00000008 00000023 
ffffffb3
Call Trace:
  [<c0115e4d>] pte_alloc_one+0x3d/0x50
  [<c0275007>] vcc_connect+0xb7/0x1f0
  [<c0272202>] pvc_bind+0xb2/0x150
  [<c0217595>] sys_connect+0x85/0xc0
  [<c027234f>] pvc_setsockopt+0x9f/0xf0
  [<c0217a48>] sys_setsockopt+0x78/0xc0
  [<c021813d>] sys_socketcall+0xcd/0x2a0
  [<c0109107>] syscall_call+0x7/0xb
 

Code: 83 ec 1c 8b 44 24 28 89 74 24 10 89 7c 24 14 89 6c 24 18 89 5c 24 
0c 8b 74 24 20 8b 7c 24 24 8b 6c 24 2c 83 c0 02 83 f8 01 76 0e <0f> be 
4f 26 8b 44 24 28 d3 f8 85 c0 75 14 8d 45 02 83 f8 01 76