[Crash-utility] Crash-utility Digest, Vol 137, Issue 18

[ぷ风过无痕??]

>> >> PID: 30444  TASK: ffff8820454e9520  CPU: 19  COMMAND: "python"
>> >>  #0 [ffff88203de8b4f0] machine_kexec at ffffffff8103d1ab
>> >>  #1 [ffff88203de8b550] crash_kexec at ffffffff810cc4a2
>> >>  #2 [ffff88203de8b620] oops_end at ffffffff8153d540
>> >>  #3 [ffff88203de8b650] no_context at ffffffff8104e8cb
>> >>  #4 [ffff88203de8b6a0] __bad_area_nosemaphore at ffffffff8104eb55
>> >>  #5 [ffff88203de8b6f0] bad_area at ffffffff8104ec7e
>> >>  #6 [ffff88203de8b720] __do_page_fault at ffffffff8104f483
>> >>  #7 [ffff88203de8b840] do_page_fault at ffffffff8153f48e
>> >>  #8 [ffff88203de8b870] page_fault at ffffffff8153c835
[exception RIP: list_del+27]
    RIP: ffffffff812a3f8b  RSP: ffff88203de8b928  RFLAGS: 00010046
    RAX: 0000000000000006  RBX: ffffea006f040028  RCX: 0000000000000000
    RDX: 0000000000000000  RSI: 0000000000000000  RDI: ffffea006f040028
    RBP: ffff88203de8b938   R8: ffffea006f040028   R9: 0000000000000000
    R10: 0000000000000000  R11: 000000000000000a  R12: 0000000000000000
    R13: ffff880000021de8  R14: 0000000000000020  R15: ffff880000019d80
    ORIG_RAX: ffffffffffffffff  CS: 0010  SS: 0000
>> >>  #9 [ffff88203de8b940] __rmqueue at ffffffff811336c3
>> >> #10 [ffff88203de8b9e0] get_page_from_freelist at ffffffff81135350
>> >> #11 [ffff88203de8bb10] __alloc_pages_nodemask at ffffffff81136ff9
>> >> #12 [ffff88203de8bc60] alloc_pages_vma at ffffffff8117068a
>> >> #13 [ffff88203de8bcb0] handle_pte_fault at ffffffff81152afd
>> >> #14 [ffff88203de8bd90] handle_mm_fault at ffffffff81153179
>> >> #15 [ffff88203de8be00] __do_page_fault at ffffffff8104f156
>> >> #16 [ffff88203de8bf20] do_page_fault at ffffffff8153f48e
>> >> #17 [ffff88203de8bf50] page_fault at ffffffff8153c835


Hi, Dave. I followed what you said.
sym do_linear_fault , do_non_linear_fault, do_swap_page , do_wp_page
And I only found that do_wp_page's symbol exist, but I also found that __do_fault's symbol exist. According to the source code, I found that only two functions(do_linear_fault , do_non_linear_fault) will call __do_fault() . So how to exclude these two functions(do_linear_fault , do_non_linear_fault)? By the way, the result of 'dis -l handle_pte_fault |grep call |grep do' is as follow, you can see the __do_fault().
crash> dis -l handle_pte_fault|grep call | grep do
0xffffffff8115244b <handle_pte_fault+139>:	callq  0xffffffff81151e90 <__do_fault>
0xffffffff811524b2 <handle_pte_fault+242>:	callq  0xffffffff81151e90 <__do_fault>
0xffffffff81152688 <handle_pte_fault+712>:	callq  0xffffffff81151570 <do_wp_page>
0xffffffff81152d0c <handle_pte_fault+2380>:	callq  0xffffffff81151570 <do_wp_page>
0xffffffff81152d5c <handle_pte_fault+2460>:	callq  0xffffffff8115cc80 <do_page_add_anon_rmap>
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