[panda-users] Fwd: taint segmentation fault

[xiaojuan Li]

and the question is : it crashed when it read guest_addr
[image: 内嵌图片 1]
how can i solve this segfault?
Thanks a lot?

2015-04-18 20:41 GMT-04:00 xiaojuan Li <xiaotan6666 at gmail.com>:

> Thanks first.
> could you have some time consecutive?
> I have not solved this segfault reported thirteen days ago and i just get
> stuck.
> Thanks very much.
>
> 2015-04-18 11:27 GMT-04:00 Brendan Dolan-Gavitt <brendan at cs.columbia.edu>:
>
> Could you post the new replay you are using that generates the segfault,
>> along with the command line you are using to run the replay? That will be
>> the fastest way for us to figure out what's going wrong, I think.
>>
>> Thanks,
>> Brendan
>>
>> On Sat, Apr 18, 2015 at 10:52 AM, xiaojuan Li <xiaotan6666 at gmail.com>
>> wrote:
>>
>>> please ignore just this mail.i am wrong...
>>> ---------- Forwarded message ----------
>>> From: xiaojuan Li <xiaotan6666 at gmail.com>
>>> Date: 2015-04-18 10:40 GMT-04:00
>>> Subject: Re: [panda-users] taint segmentation fault
>>> To: "panda-users at mit.edu" <panda-users at mit.edu>
>>>
>>>
>>> does it caused by this:
>>>
>>>
>>> ​the value of get_td_p(addr) is the return of tassert(),is it possible
>>> to be null,
>>> and i am going to insert some log to check.
>>>
>>>
>>> 2015-04-18 8:21 GMT-04:00 xiaojuan Li <xiaotan6666 at gmail.com>:
>>>
>>> yeah you are right.the way i used before is kind of stupid.
>>>> here is the bt result:
>>>>
>>>>
>>>> ​but i do not understand how it caused segfault
>>>> Thanks
>>>>
>>>>
>>>> 2015-04-17 20:55 GMT-04:00 Manolis Stamatogiannakis <mstamat at gmail.com>
>>>> :
>>>>
>>>>> How about using gdb and the dumped core to print the stack trace at
>>>>> the time of the crash?
>>>>>
>>>>>
>>>>> 2015-04-17 17:46 GMT-07:00 xiaojuan Li <xiaotan6666 at gmail.com>:
>>>>>
>>>>>> any suggestions?
>>>>>> Thanks!
>>>>>>
>>>>>>
>>>>>
>>>>
>>>>
>>>> --
>>>> wait and hope~~
>>>>
>>>
>>>
>>>
>>> --
>>> wait and hope~~
>>>
>>>
>>>
>>> --
>>> wait and hope~~
>>>
>>> _______________________________________________
>>> panda-users mailing list
>>> panda-users at mit.edu
>>> http://mailman.mit.edu/mailman/listinfo/panda-users
>>>
>>>
>>
>
>
> --
> wait and hope~~
>



-- 
wait and hope~~
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