[SR-Users] Core fm_realloc function
Bruno Bresciani
bruno.bresciani at gmail.com
Thu Jan 3 17:21:59 CET 2013
My openSSL version is 0.9.8... According to
http://openssl.6102.n7.nabble.com/Custom-free-routine-is-invoked-with-NULL-argument-in-openssl-1-0-1-td25937.htmlthis
was working fine in 0.9.8.
I was analysing the backtrace full with gdb and the line below shows that
ptr was not a NULL parameter.
#4 0x0051a87f in ser_realloc (ptr=0xb61f0bc0, size=32) at
../../mem/shm_mem.h:266
ptr=0xb61f0bc0
size=32
Now, I'm a little confused...the changes to allow freeing of NULL pointer
to behave like standard free () function will take effect to prevent the
bug FS#247?
Best Regards
2013/1/3 Klaus Darilion <klaus.mailinglists at pernau.at>
> You can also check which openSSL version you are using. According to
> http://openssl.6102.n7.nabble.**com/Custom-free-routine-is-**
> invoked-with-NULL-argument-in-**openssl-1-0-1-td25937.html<http://openssl.6102.n7.nabble.com/Custom-free-routine-is-invoked-with-NULL-argument-in-openssl-1-0-1-td25937.html>
> it happened somewhere between 1.0.0. and 1.0.1c
>
> regards
> klaus
>
>
> On 03.01.2013 14:56, Bruno Bresciani wrote:
>
>> Thank's for your reply Klaus,
>>
>> but I don't know if is exactly this patch that Daniel is referring,
>> because the backtrace full with gdb showed that problem happened at
>> ser_realloc function. I will insert this check to NULL pointer at
>> ser_free and ser_realloc function and recompile kamailio 3.1.2 because I
>> can't update to version 3.3.3 for while.
>>
>> Best Regards
>>
>> 2013/1/2 Klaus Darilion <klaus.mailinglists at pernau.at
>> <mailto:klaus.mailinglists@**pernau.at <klaus.mailinglists at pernau.at>>>
>>
>>
>> I think Daniel is referring to this patch:
>> http://git.sip-router.org/cgi-**bin/gitweb.cgi/sip-router/?a=**
>> commit;h=**020acff35f8e9dfa62aba8678a781a**0f7bbb110b<http://git.sip-router.org/cgi-bin/gitweb.cgi/sip-router/?a=commit;h=020acff35f8e9dfa62aba8678a781a0f7bbb110b>
>>
>> This fix was done to devel and 3.3 branch and is included in latest
>> 3.3.3 release.
>>
>> regards
>> Klaus
>>
>> Am 20.12.2012 19 <tel:20.12.2012%2019>:29, schrieb Bruno Bresciani:
>>
>>> Hi,
>>>
>>> I refer the bug fix FS#247 that I open in 30 July 2012 and you
>>> closed in 25 october 2012 with the information: "Reopen if the
>>> patch for free(0) didn't work.".
>>>
>>> What Release this fix was included?
>>>
>>>
>>> Best Regards
>>>
>>> 2012/12/20 Daniel-Constantin Mierla <miconda at gmail.com
>>> <mailto:miconda at gmail.com>>
>>>
>>>
>>> Hello,
>>>
>>> if you refer to free(0) issue with libssl, I am not sure it
>>> was ever put in 3.1 branch, as the last release was before
>>> reporting the issue.
>>>
>>> Cheers,
>>> Daniel
>>>
>>>
>>> On 12/20/12 6:01 PM, Bruno Bresciani wrote:
>>>
>>>> Hello Daniel,
>>>>
>>>> What patch this bug was fixed? This bug was open in 30 July
>>>> 2012 and ultimate Release to 3.1.X (3.1.6) was released at
>>>> 14 July 2012...
>>>>
>>>> Best Regards
>>>>
>>>> 2012/8/1 Daniel-Constantin Mierla <miconda at gmail.com
>>>> <mailto:miconda at gmail.com>>
>>>>
>>>>
>>>> Hello,
>>>>
>>>>
>>>> On 7/31/12 3:39 PM, Bruno Bresciani wrote:
>>>>
>>>>> Hello,
>>>>>
>>>>> I didn't know that log messages related to memory
>>>>> operations can be controlled by global parameter, but I
>>>>> like to know if is recommendable I recompile kamailio
>>>>> using q_malloc (default) and not f_malloc... memory
>>>>> operations using q_malloc is more reliable and avoid
>>>>> problems or crashes or it is only more suitable for
>>>>> debugging? What do you suggest Daniel?
>>>>>
>>>>
>>>> q_malloc is more suitable for debugging.
>>>>
>>>>
>>>>
>>>>> The 'get_statistics all' command is avaliable by a
>>>>> specific module? I run 'kamctl fifo get_statistics all'
>>>>> and return '500 command 'get_statistics' not available'
>>>>>
>>>>
>>>> Do you have kex module loaded? What is the output of
>>>> 'kamctl fifo which'?
>>>>
>>>>
>>>>
>>>>> For while is impossible to start a new installation,
>>>>> first because I don't know how much time I will spend to
>>>>> port and second because I am involved with other
>>>>> developments and I have no time to make this. I know
>>>>> that 3.1 is no longer a official branch but now start a
>>>>> new installation it's very very difficult, my in
>>>>> intention is discover what caused the crash and if
>>>>> exists a way to fix or prevent it.
>>>>>
>>>> Discovering may require additional patches, like more
>>>> debug messages in the C code, that's why is better to
>>>> start with the latest stable.
>>>>
>>>>
>>>> Cheers,
>>>> Daniel
>>>>
>>>>
>>>>> Best Regards
>>>>>
>>>>> 2012/7/31 Daniel-Constantin Mierla <miconda at gmail.com
>>>>> <mailto:miconda at gmail.com>>
>>>>>
>>>>>
>>>>> Hello,
>>>>>
>>>>>
>>>>> On 7/30/12 9:01 PM, Bruno Bresciani wrote:
>>>>>
>>>>>> Hi,
>>>>>>
>>>>>> I compiled kamailio with MEMDBG = 0 because I
>>>>>> didn't want the memory debug in kamailio log, but
>>>>>> I didn't know these turns on f_malloc and disabling
>>>>>> q_malloc...
>>>>>>
>>>>> the log messages related to memory operations can be
>>>>> controlled by global parameters memdbg and memlog.
>>>>>
>>>>>
>>>>>
>>>>>> Probably the size of shared memory that I start
>>>>>> kamailio is 32MB because I didn't gave a different
>>>>>> -m parameter value, exist a command to verify this
>>>>>> information?
>>>>>>
>>>>>
>>>>> kamctl fifo get_statistics all
>>>>>
>>>>> and see the shared memory total value. It will be
>>>>> interesting to see available shared memory as well.
>>>>>
>>>>>
>>>>>
>>>>>> At moment that crash happened, there were few
>>>>>> registered users agents and were being made tests
>>>>>> with register and calls with TLS protocol. I got
>>>>>> only the two situations that I showed at first email.
>>>>>>
>>>>>
>>>>> If you plan to start a new installation, I strongly
>>>>> recommend 3.3 branch, the code is more actual and
>>>>> easier to debug. 3.1 is no longer an official
>>>>> maintained branch, those being now 3.3 and 3.2. I'm
>>>>> looking at this issue to be sure it is no longer in
>>>>> latest stable.
>>>>>
>>>>> Cheers,
>>>>> Daniel
>>>>>
>>>>>
>>>>>
>>>> --
>>>> Daniel-Constantin Mierla -http://www.asipto.com
>>>> http://twitter.com/#!/miconda <http://twitter.com/#%21/**
>>>> miconda <http://twitter.com/#%21/miconda>> -
>>>> http://www.linkedin.com/in/**miconda<http://www.linkedin.com/in/miconda>
>>>> Kamailio Advanced Training, Seattle, USA, Sep 23-26, 2012 -
>>>> http://asipto.com/u/katu
>>>>
>>>> Kamailio Practical Workshop, Netherlands, Sep 10-12, 2012 -
>>>> http://asipto.com/u/kpw
>>>>
>>>>
>>>>
>>> --
>>> Daniel-Constantin Mierla -http://www.asipto.com
>>> http://twitter.com/#!/miconda <http://twitter.com/#%21/**
>>> miconda <http://twitter.com/#%21/miconda>> -http://www.linkedin.com/in/
>>> **miconda <http://www.linkedin.com/in/miconda>
>>>
>>>
>>>
>>>
>>>
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