Re: [Precord RFA/RFC] Check Linux sys_brk release memory in process record and replay.

Hui Zhu
2009-06-09T02:17:46Z

Ping.

On Mon, May 11, 2009 at 15:06, Hui Zhu<teawater@gmail.com> wrote:
> PING.
>
> On Thu, May 7, 2009 at 11:20, Eli Zaretskii <eliz@gnu.org> wrote:
>>> Date: Thu, 7 May 2009 10:21:04 +0800
>>> From: Hui Zhu <teawater@gmail.com>
>>> Cc: gdb-patches@sourceware.org, msnyder@vmware.com
>>>
>>> > I thought the problem was that replaying the execution log before the
>>> > sbrk point would be impossible, because (I thought) there's no way of
>>> > regaining back the memory the inferior gave up.  Is this the problem
>>> > you are talking about?  If so, that is not a fatal limitation, and it
>>> > certainly does not justify stopping the program and asking the user to
>>> > make some grave decision.  The user just needs to be notified, when
>>> > she tries that, that she cannot reverse-replay the log past this
>>> > point.  If the user never tries to replay past that point, she never
>>> > needs to know about the problem.
>>>
>>> I am not sure make inferior cannot continue is good or not.  I think
>>> let user choice continue or stop is better.
>>
>> Well, what do others think?
>>
>