Re: [Iaxclient-devel] crash in iax_event_free on mac

[Dennis C. <dch...@pi...>]

Peter,

I have set an environment variable to detect re-use of freed pointers  
and I can see a case in iax_get_event (near  " Decrement remaining  
retries ") that goes wrong because it references an event returned  
from iax_get_sched() whose event ptr is null. In the code generally  
this seems possible because freed ptrs are not
set to null after they are freed. This is reproducible. I'm not  
familiar enough with the event loop yet to suggest a correction. How  
should we proceed?

Dennis Christopher
Pixion



On 10-Jun-08, at 5:23 PM, iaxclient-devel- 
re...@li... wrote:

> On Fri, May 30, 2008 at 12:45 PM, Dennis Christopher
> <dch...@pi...> wrote:
>> I have a build of 2.0.2 running on mac OS X 10.4. I'm getting a  
>> somewhat
>> reproducible
>> crash in iax_event_free, which doesnt seem associated with any  
>> particular
>> audio event. Can anyone suggest what I might look for here?
>> The offending symbol is the free call, which typically would be a
>> non-allocated ptr being freed, or one that has already been freed.
>
> A stack trace would help. How reproducible is this problem? Does the
> problem happen with 2.1beta3 or the trunk?
>
> Pete