理解powerlinux的kernel oops 之三 用gdb查找oops原因

kitlp1:/home/hpt/oops # gdb oops.ko
GNU gdb (GDB) SUSE (7.5.1-0.7.29)
Copyright (C) 2012 Free Software Foundation, Inc.
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This GDB was configured as "ppc64-suse-linux".
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<http://www.gnu.org/software/gdb/bugs/>...
Reading symbols from /home/hpt/oops/oops.ko...done.
(gdb) add-symbol-file oops.o 0xd000000002d301a8
add symbol table from file "oops.o" at
        .text_addr = 0xd000000002d301a8
(y or n) y
Reading symbols from /home/hpt/oops/oops.o...done.
(gdb)

(gdb) disassemble my_oops_init
Dump of assembler code for function my_oops_init:
   0x0000000000000034 <+0>:     std     r30,-16(r1)
   0x0000000000000038 <+4>:     ld      r30,0(r2)
   0x000000000000003c <+8>:     mflr    r0
   0x0000000000000040 <+12>:    std     r0,16(r1)
   0x0000000000000044 <+16>:    stdu    r1,-128(r1)
   0x0000000000000048 <+20>:    ld      r3,-32760(r30)
   0x000000000000004c <+24>:    bl      0x4c
   0x0000000000000050 <+28>:    nop
   0x0000000000000054 <+32>:    addi    r1,r1,128
   0x0000000000000058 <+36>:    li      r9,0
   0x000000000000005c <+40>:    li      r3,0
   0x0000000000000060 <+44>:    stw     r9,0(r9)
   0x0000000000000064 <+48>:    ld      r0,16(r1)
   0x0000000000000068 <+52>:    ld      r30,-16(r1)
   0x000000000000006c <+56>:    mtlr    r0
   0x0000000000000070 <+60>:    blr
End of assembler dump.
(gdb)

(gdb) list *0x60
0x60 is in my_oops_init (/home/hpt/oops/oops.c:6).
1       #include
2       #include
3       #include
4
5       static void create_oops() {
6               *(int *)0 = 0;
7       }
8
9       static int __init my_oops_init(void) {
10              printk("oops from the modulen");
(gdb)