关于内核报错

Question

小弟在arm9200平台上开发，内核使用的是2.4.19-rmk7,测试我自己写的驱动，结果系统报错如下：
Unable to handle kernel paging request at virtual address 6568a040
mm = c019a9ac pgd = c0004000
*pgd = 00000000, *pmd = 00000000
Internal error: Oops: 0
CPU: 0
pc : [<c0023bf8>]    lr : [<c00241f4>]    Tainted: PF
sp : c0199e94  ip : ffffffff  fp : c0199ea0
r10: 00000001  r9 : ffffffff  r8 : a0000013
r7 : c88c7794  r6 : 00000093  r5 : 00000001  r4 : c715df30
r3 : 6568a040  r2 : 00000001  r1 : c019ae64  r0 : c715c000
Flags: nZCv  IRQs off  FIQs on  Mode SVC_32  Segment kernel
Control: C000317F  Table: 27104000  DAC: 0000001D
Process swapper (pid: 0, stack limit = 0xc0198374)
Stack: (0xc0199e94 to 0xc019a000)
9e80:                                              c0199ec8 c0199ea4 c00241f4
9ea0: c0023bf0 c88c779c 00000000 c019a080 00000000 60000093 20014fc8 c0199f04
9ec0: c0199ecc c88c6a04 c0024168 00000002 00000000 00000000 00000002 00026abc
9ee0: 60000013 02020200 00003828 c0193121 00003020 00000000 c0199f24 c0199f08
9f00: c002bb4c c88c62b8 00000001 c019a0d8 fffffff7 c01b1e80 c0199f48 c0199f28
9f20: c002b8f0 c002baf0 c01b1e80 c0199f64 0000001e c001d6fc 60000013 c0199f60
9f40: c0199f4c c001d118 c002b884 c0199f98 fefff000 c0199fb8 c0199f64 c001c1e0
9f60: c001d0c4 00000000 00000032 00000000 60000013 c001d6b0 c0198000 c01aa858
9f80: c01aa84c c019ac4c 41129200 20014fc8 c0199fb8 c0199fbc c0199fac c001d6f0
9fa0: c001d6fc 60000013 ffffffff c0199fd0 c0199fbc c001d75c c001d6c0 c01b36c4
9fc0: c01d4a90 c0199fe0 c0199fd4 c001a030 c001d714 c0199ffc c0199fe4 c00086fc
9fe0: c001a010 c01aac68 c01dfcbc c01dfcbc 00000000 c019a000 c0008080 c00085b8
Backtrace:
Function entered at [<c0023be0>] from [<c00241f4>]
Function entered at [<c0024158>] from [<c88c6a04>]
Function entered at [<c88c62a8>] from [<c002bb4c>]
Function entered at [<c002bae0>] from [<c002b8f0>]
r7 = C01B1E80  r6 = FFFFFFF7  r5 = C019A0D8  r4 = 00000001
Function entered at [<c002b874>] from [<c001d118>]
r8 = 60000013  r7 = C001D6FC  r6 = 0000001E  r5 = C0199F64
r4 = C01B1E80
Function entered at [<c001d0b4>] from [<c001c1e0>]
r5 = FEFFF000  r4 = C0199F98
Function entered at [<c001d6b0>] from [<c001d75c>]
Function entered at [<c001d704>] from [<c001a030>]
r5 = C01D4A90  r4 = C01B36C4
Function entered at [<c001a000>] from [<c00086fc>]
Function entered at [<c00085a8>] from [<c0008080>]
Code: e24cb004 e3e0c000 e59f30bc e5902028 (e5931000)
Kernel panic: Aiee, killing interrupt handler!
In interrupt handler - not syncing

请问有什么办法能够分析这些信息？找到出错的原因呢？谢谢大家！

Answer 1

cat /proc/ksyms|grep c0023be0
cat /proc/ksyms|grep c00241f4

...

看看是在哪个函数里出错了...

或者反汇编你的.o文件, 根据crash的地址,找到汇编行,推出源码行,再排错,这个比较有难度