[BUG] Oops booting linux-2.4.18-pre7-ac3

[BUG] Oops booting linux-2.4.18-pre7-ac3

[Spider]

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This is pretty much the same as "oops booting 2.4.18-pre7-ac3" by "Todd M. Roy" <troy@holstein.com> but I post it as well.

I'm not subscribed, so if you wish more information (.config, other info on hardware/software installed) please cc' me.

//Spider



PCI: PCI BIOS revision 2.10 entry at 0xf1150, last bus=1
PCI: Using configuration type 1
PCI: Probing PCI hardware
PCI: Using IRQ router VIA [1106/0686] at 00:04.0
PCI: Disabling Via external APIC routing
PnPBIOS: Found PnP BIOS installation structure at 0xc00fc2b0.
PnPBIOS: PnP BIOS version 1.0, entry 0xf0000:0xc2e0, dseg 0xf0000.
PnPBIOS: 12 nodes reported by PnP BIOS; 12 recorded by driver.
PnPBIOS: PNP0c02: ioport range 0xe400-0xe47f has been reserved.
PnPBIOS: PNP0c02: ioport range 0xe800-0xe83f could not be reserved.
Linux NET4.0 for Linux 2.4
Based upon Swansea University Computer Society NET3.039
Initializing RT netlink socket
Unable to handle kernel NULL pointer dereference at virtual address 0000002c
 printing eip:
c012afb1
*pde = 00000000
Oops: 0000
CPU:    0
EIP:    0010:[<c012afb1>]    Not tainted
EFLAGS: 00010046
eax: 00000000   ebx: 00000000   ecx: d1fc0000   edx: 00000000
esi: 00000000   edi: c03018a0   ebp: 000001f0   esp: d1fc1f74
ds: 0018   es: 0018   ss: 0018
Process swapper (pid: 2, stackpage=d1fc1000)
Stack: 00000000 00000000 00000000 00000000 00000000 00000000 c03018a0 d1fc1fdc 
       c011de76 00000000 000001f0 d1fc0000 00000000 c0105000 c011fdd3 00000000 
       d1fc0000 d1fe1fb8 c0114a9c 00000000 00000000 d1fc0000 d1fc0000 c0114af5 
Call Trace: [<c011de76>] [<c0105000>] [<c011fdd3>] [<c0114a9c>] [<c0114af5>] 
   [<c01f3a3d>] [<c0105000>] [<c0105746>] [<c01f3a30>] 

Code: f6 43 2c 01 74 02 0f 0b 9c 5e fa 8b 4b 08 8d 7b 08 39 f9 75 
 Starting kswapd



>>EIP; c012afb1 <kmem_cache_alloc+21/b0>   <=====
Trace; c011de76 <alloc_uid+56/d0>
Trace; c0105000 <_stext+0/0>
Trace; c011fdd3 <set_user+13/60>
Trace; c0114a9c <reparent_to_init+13c/150>
Trace; c0114af5 <daemonize+45/60>
Trace; c01f3a3d <pnp_dock_thread+d/100>
Trace; c0105000 <_stext+0/0>
Trace; c0105746 <kernel_thread+26/30>
Trace; c01f3a30 <pnp_dock_thread+0/100>
Code;  c012afb1 <kmem_cache_alloc+21/b0>
00000000 <_EIP>:
Code;  c012afb1 <kmem_cache_alloc+21/b0>   <=====
   0:   f6 43 2c 01               testb  $0x1,0x2c(%ebx)   <=====
Code;  c012afb5 <kmem_cache_alloc+25/b0>
   4:   74 02                     je     8 <_EIP+0x8> c012afb9 <kmem_cache_alloc+29/b0>
Code;  c012afb7 <kmem_cache_alloc+27/b0>
   6:   0f 0b                     ud2a   
Code;  c012afb9 <kmem_cache_alloc+29/b0>
   8:   9c                        pushf  
Code;  c012afba <kmem_cache_alloc+2a/b0>
   9:   5e                        pop    %esi
Code;  c012afbb <kmem_cache_alloc+2b/b0>
   a:   fa                        cli    
Code;  c012afbc <kmem_cache_alloc+2c/b0>
   b:   8b 4b 08                  mov    0x8(%ebx),%ecx
Code;  c012afbf <kmem_cache_alloc+2f/b0>
   e:   8d 7b 08                  lea    0x8(%ebx),%edi
Code;  c012afc2 <kmem_cache_alloc+32/b0>
  11:   39 f9                     cmp    %edi,%ecx
Code;  c012afc4 <kmem_cache_alloc+34/b0>
  13:   75 00                     jne    15 <_EIP+0x15> c012afc6 <kmem_cache_alloc+36/b0>



-- 
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This is a .signature virus! Please copy me into your .signature!
See Microsoft KB Article Q265230 for more information.
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Re: [BUG] Oops booting linux-2.4.18-pre7-ac3

[Andrew Morton]

Spider wrote:
> 
> This is pretty much the same as "oops booting 2.4.18-pre7-ac3" by "Todd M. Roy" <troy@holstein.com> but I post it as well.
> 
> I'm not subscribed, so if you wish more information (.config, other info on hardware/software installed) please cc' me.
> 
> //Spider
> 
> PCI: PCI BIOS revision 2.10 entry at 0xf1150, last bus=1
> PCI: Using configuration type 1
> PCI: Probing PCI hardware
> PCI: Using IRQ router VIA [1106/0686] at 00:04.0
> PCI: Disabling Via external APIC routing
> PnPBIOS: Found PnP BIOS installation structure at 0xc00fc2b0.
> PnPBIOS: PnP BIOS version 1.0, entry 0xf0000:0xc2e0, dseg 0xf0000.
> PnPBIOS: 12 nodes reported by PnP BIOS; 12 recorded by driver.
> PnPBIOS: PNP0c02: ioport range 0xe400-0xe47f has been reserved.
> PnPBIOS: PNP0c02: ioport range 0xe800-0xe83f could not be reserved.
> Linux NET4.0 for Linux 2.4
> Based upon Swansea University Computer Society NET3.039
> Initializing RT netlink socket
> Unable to handle kernel NULL pointer dereference at virtual address 0000002c

Yes, sorry - I didn't test against Alan's pnpbios driver.

The problem is this, in init/main.c:

#ifdef CONFIG_PNPBIOS
    pnpbios_init();
#endif
    ....
    start_context_thread();
    do_initcalls();

pnpbios_init() launches a kernel thread which calls the kernel/user.c
code before the user.c's initcall has had a chance to initialise things.

I've asked Alan to back out the rather unimportant set_user-in-reparent_to_init
fix while we contemplate this.

I suggest you disable the pnpbios driver in kernel config in -ac3.


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