James Courtier-Dutton wrote:
> Andrew Morton wrote:
> 
>>James Courtier-Dutton <James@superbug.demon.co.uk> wrote:
>>
>>
>>>I have used the kernel.org normal kernel, and it compiles and boots fine.
>>>I then use exactly the same .config file for the 2.6.12-rc6-mm1 and it
>>>fails to boot.
>>
>>
>>It's due to the fork notifier code.  Set CONFIG_FORK_CONNECTOR=n and you
>>should be OK.
>>
> 
> 
> 2.6.12-mm1 fails just like previous versions.
> 
> Setting "CONFIG_FORK_CONNECTOR=n" permitted me to boot the kernel, thank
> you.
> 
> James
> 

Ok, it now boots, but I now get a new problem.
after "modprobe yenta-socket", and then "cat /proc/iomem" I get the
attached kernel segfault.

Extract below:
Unable to handle kernel NULL pointer dereference at virtual address 00000010
 printing eip:
c0126fc0
*pde = 00000000
Oops: 0000 [#1]
PREEMPT SMP DEBUG_PAGEALLOC
Modules linked in: yenta_socket rsrc_nonstatic pcmcia_core usbcore
CPU:    0
EIP:    0060:[<c0126fc0>]    Not tainted VLI
EFLAGS: 00010297   (2.6.12-mm1)
EIP is at r_show+0x30/0x90
eax: 00000000   ebx: 00000008   ecx: 00000003   edx: c03ca87c
esi: f7fafaa8   edi: f4f7af78   ebp: f4fabf28   esp: f4fabef8
ds: 007b   es: 007b   ss: 0068
Process cat (pid: 1750, threadinfo=f4faa000 task=f4f55af0)
Stack: f4f7af78 c0389e8b 00000000 c038d590 00000008 3fffc000 00000008
3fffffff
       c03883a3 00000000 f4f7af78 f7fafaa8 f4fabf60 c018b702 f4f7af78
f7fafaa8
       f4fabf44 000001a7 00000000 0000000d 00000000 0000000c 00000000
00000400
Call Trace:
 [<c01040df>] show_stack+0x7f/0xa0
 [<c0104284>] show_registers+0x164/0x1e0
 [<c01044cd>] die+0x10d/0x1a0
 [<c011749c>] do_page_fault+0x4bc/0x6b8
 [<c0103d0f>] error_code+0x4f/0x54
 [<c018b702>] seq_read+0x242/0x2f0
 [<c01667f3>] vfs_read+0xe3/0x1b0
 [<c0166bcb>] sys_read+0x4b/0x80
 [<c01031f9>] syscall_call+0x7/0xb
Code: 53 83 ec 24 8b 7d 08 8b 75 0c 8b 57 40 8b 42 08 3d 00 00 01 00 19
db 89 f0 83 e3 fc 31 c9 83 c3 08 8d 76 00 8d bc 27 00 00 00 00 <8b> 40
10 39 d0 74 06 41 83 f9 04 7e f3 8b 06 ba 85 9e 38 c0 85
 <3>Debug: sleeping function called from invalid context at
include/linux/rwsem.h:43
in_atomic():1, irqs_disabled():0
 [<c010411e>] dump_stack+0x1e/0x20
 [<c011dd22>] __might_sleep+0xa2/0xb0
 [<c0121901>] profile_task_exit+0x21/0x60
 [<c0123bdd>] do_exit+0x1d/0x490
 [<c0104554>] die+0x194/0x1a0
 [<c011749c>] do_page_fault+0x4bc/0x6b8
 [<c0103d0f>] error_code+0x4f/0x54
 [<c018b702>] seq_read+0x242/0x2f0
 [<c01667f3>] vfs_read+0xe3/0x1b0
 [<c0166bcb>] sys_read+0x4b/0x80
 [<c01031f9>] syscall_call+0x7/0xb
note: cat[1750] exited with preempt_count 1
scheduling while atomic: cat/0x10000001/1750
 [<c010411e>] dump_stack+0x1e/0x20
 [<c0374128>] schedule+0xa58/0xdf0
 [<c0374ddf>] cond_resched+0x2f/0x50
 [<c01553a9>] unmap_vmas+0x159/0x260
 [<c015a48c>] exit_mmap+0x9c/0x190
 [<c011e3d5>] mmput+0x55/0xf0
 [<c01231f1>] exit_mm+0xc1/0x180
 [<c0123c9a>] do_exit+0xda/0x490
 [<c0104554>] die+0x194/0x1a0
 [<c011749c>] do_page_fault+0x4bc/0x6b8
 [<c0103d0f>] error_code+0x4f/0x54
 [<c018b702>] seq_read+0x242/0x2f0
 [<c01667f3>] vfs_read+0xe3/0x1b0
 [<c0166bcb>] sys_read+0x4b/0x80
 [<c01031f9>] syscall_call+0x7/0xb