[Linphone-developers] munmap_chunk(), invalid pointer in mediastreamer2.1.0

[张贝芬]

Hello:

       Does mediastreamer2 have BUGS list from 2.1.0 version to lastest version. Now I meet a problem using 2.1.0 version that it will report "munmap_chunk(),invalid pointer" when I  call audio_strem_stop() or video_stream_stop().Here is the error info:

//////////////   error info  //////////////////////////
*** glibc detected *** ./VideoInterphone: munmap_chunk(): invalid pointer: 0x57237100 ***
======= Backtrace: =========
/lib/libc.so.6[0x4135b30c]
/usr/local/base_libs/mediastreamer2/lib/libmediastreamer.so.0(ms_list_remove_link+0x64)[0x402de6cc]
/usr/local/base_libs/mediastreamer2/lib/libmediastreamer.so.0(ms_ticker_detach+0x9c)[0x402e0030]
/usr/local/base_libs/mediastreamer2/lib/libquickstream.so.0(audio_stream_stop+0x14)[0x40315e38]
////////////////////////////////////////////////////

we find that in function  ms_list_remove_link(),the variable "list" or "elem" is the invalid pointer

//////////////////   function ms_list_remove_link()  ////////

MSList *ms_list_remove_link(MSList *list, MSList *elem){
 MSList *ret;
 if (elem==list){
  ret=elem->next;
  elem->prev=NULL;
  elem->next=NULL;
  if (ret!=NULL) ret->prev=NULL;
  ms_free(elem);
  elem = NULL;
  return ret;
 }
 elem->prev->next=elem->next;
 if (elem->next!=NULL) elem->next->prev=elem->prev;
 elem->next=NULL;
 elem->prev=NULL;
 ms_free(elem);
 elem = NULL;
 return list

/////////////////////////////////////////////////////////////

Has anybody encountered the same problem ? Can anybody offer some suggestion?
Thank you for your help in advance.

                         Best Regards.

                          Zhiwei Chen