Re: System call support in reversible debugging

[Sean Chen <sean.chen1234@gmail.com>]

On Fri, Nov 27, 2009 at 4:04 PM, Hui Zhu <teawater@gmail.com> wrote:
> This is a old query.  For now, this munmap just can let prec ignore
> some memory change record entry.
>
> You can answer 'no' then inferior will keep exec.  Most of thing will
> be find.  :)
>
> Maybe we need update this query looks not so scary and  do some other update.
>
> Thanks,
> Hui
>
> On Fri, Nov 27, 2009 at 14:31, Sean Chen <sean.chen1234@gmail.com> wrote:
>> Hi,
>>
>> Can gdb record system calls without checkpoints or snapshots
>> currently? If not, is it possible to record the instructions and
>> reverse the inferior?
>>
>> When I recorded fclose(), I got the following message.
>> The next instruction is syscall munmap.  It will free the memory addr
>> = 0xb7fe0000 len = 4096.  It will make record target get error.  Do
>> you want to stop the program?([y] or n)
>>
>> Thanks in advance.
>>
>> --
>> Best Regards,
>> Sean Chen
>>
>

Thanks for your reply.

Does it mean that we have to ignore all memory changes in all system
calls or kernel space code?

-- 
Best Regards,
Sean Chen