When inserting the ibmtr.o module in any of the 2.4 series kernels, I get a
null pointer crash. Latest try was 2.4.4. Ksymoops:
Unable to handle kernel paging request at virtual address 7a000018
c012861e
*pde = 00000000
Oops: 0000
CPU: 0
EIP: 0010:[<c012861e>]
Using defaults from ksymoops -t elf32-i386 -a i386
EFLAGS: 00010246
eax: 00000170 ebx: 00000001 ecx: 00000170 edx: 00000000
esi: c1321080 edi: c13210dc ebp: c9ca3800 esp: c0203ee8
ds: 0018 es: 0018 ss: 0018
Process swapper (pid: 0, stackpage=c02030000)
Stack: c0188efd c1321080 00000000 c0188f37 c1321080 c1321080 c0189067 c1321080
c1321080 c1321080 c01905c3 c1321080 c1321080 c9ff8ca0 c01903bb c1321080
c9ca3800 c01ff12c c1321080 c01ff12c c0189067 c1321080 c9ca3800 c01ff12c
Call Trace: [<c0188efd>] [<c0188f37>] [<c0189067>] [<c01905c3>] [<c01903bb>]
[<c018c219>] [<c018c3f5>]
[<c0115b7e>] [<c0107ef9>] [<c0105160>] [<c0106be0>] [<c0105160>] [<c0100018>]
[<c0105183>] [<c01051de>]
[<c0105000>] [<c0100198>]
Code: 8b 41 18 85 c0 7c 11 ff 49 14 0f 94 c0 84 c0 74 07 89 c8 e8
>>EIP; c012861e <__free_pages+2/1c> <=====
Trace; c0188efd <skb_release_data+3d/6c>
Trace; c0188f37 <kfree_skbmem+b/54>
Trace; c0189067 <__kfree_skb+e7/f0>
Trace; c01905c3 <snap_rcv+9b/a4>
Trace; c01903bb <p8022_rcv+6b/98>
Trace; c018c219 <deliver_to_old_ones+71/80>
Trace; c018c3f5 <net_rx_action+11d/200>
Trace; c0115b7e <do_softirq+4a/6c>
Trace; c0107ef9 <do_IRQ+a1/b4>
Trace; c0105160 <default_idle+0/28>
Trace; c0106be0 <ret_from_intr+0/20>
Trace; c0105160 <default_idle+0/28>
Trace; c0100018 <startup_32+18/a5>
Trace; c0105183 <default_idle+23/28>
Trace; c01051de <cpu_idle+36/4c>
Trace; c0105000 <init+0/150>
Trace; c0100198 <L6+0/2>
Code; c012861e <__free_pages+2/1c>
00000000 <_EIP>:
Code; c012861e <__free_pages+2/1c> <=====
0: 8b 41 18 movl 0x18(%ecx),%eax <=====
Code; c0128621 <__free_pages+5/1c>
3: 85 c0 testl %eax,%eax
Code; c0128623 <__free_pages+7/1c>
5: 7c 11 jl 18 <_EIP+0x18> c0128636 <__free_pages+1a/1c>
Code; c0128625 <__free_pages+9/1c>
7: ff 49 14 decl 0x14(%ecx)
Code; c0128628 <__free_pages+c/1c>
a: 0f 94 c0 sete %al
Code; c012862b <__free_pages+f/1c>
d: 84 c0 testb %al,%al
Code; c012862d <__free_pages+11/1c>
f: 74 07 je 18 <_EIP+0x18> c0128636 <__free_pages+1a/1c>
Code; c012862f <__free_pages+13/1c>
11: 89 c8 movl %ecx,%eax
Code; c0128631 <__free_pages+15/1c>
13: e8 00 00 00 00 call 18 <_EIP+0x18> c0128636 <__free_pages+1a/1c>
Cpu info:
processor : 0
vendor_id : GenuineIntel
cpu family : 6
model : 3
model name : Pentium II (Klamath)
stepping : 4
cpu MHz : 299.946316
cache size : 512 KB
fdiv_bug : no
hlt_bug : no
sep_bug : no
f00f_bug : no
coma_bug : no
fpu : yes
fpu_exception : yes
cpuid level : 2
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 sep mtrr pge mca cmov mmx
bogomips : 299.01
The token ring card is ISA, not pci. It has worked fine for years under 2.2.*
Any ideas?
-dennis T
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