[reSIProcate] Memory leaks in SipStack::send(.) and SipStack::post(.) ?

Shaofeng LI Shaofeng.LI at ausystems.fr
Fri Jun 8 03:13:32 CDT 2007 

Hi there!

We make use of resiprocate 1.0.3 in our application, and notice that
there are a number of memory leaks for each SIP call, which might be due
to our application, or due to the sip stack. 

To help to locate the memory leaks, we run our application with a
modified version of "malloc" library, which traces all the memory
allocation/freeing. Below are the memory leaks in one test scenario (a
SIP phone calls another one, which rings for a few seconds, then the
call is cancelled).

>From the trace, it seems that the memory chunks allocated in
SipStack::send(...) and SipStack::post(...), among other things, have
not been freed. I've already looked through the source codes, but I'm
not able to tell from what I've seen if these are true memory leaks in
the SIP stack, or it is rather because we forget to call a suitable
destructor in our application.

So help appreciated.

Regards,
Shaofeng


Below are some of the memory allocations that are not freed (complete
memory dumps in attached file):

 <<malloc_dump_001.txt>> 
malloc(47 bytes): 0x402227f8<_Znwj+0x6c>(/usr/lib/libstdc++.so.6)
	0x40222aa8<_Znaj+0x68>(/usr/lib/libstdc++.so.6)
	0x568de8<_ZN5resip4DataC1ERKS0_+0x68>
	0x403a9c<_ZN5resip16MergedRequestKeyC1ERKS0_+0xa8>
	0x403798<_ZN5resip27MergedRequestRemovalCommandC1ERKS0_+0xd0>
	0x4038b0<_ZNK5resip27MergedRequestRemovalCommand5cloneEv+0x7c>
	
0x4fc524<_ZN5resip8SipStack6postMSERKNS_18ApplicationMessageEjPNS_15Tran
sactionUserE+0xa0>
	
0x372fec<_ZN5resip18DialogUsageManager27requestMergedRequestRemovalERKNS
_16MergedRequestKeyE+0x10c>
	0x36c6a0<_ZN5resip9DialogSetD0Ev+0x6e0>
	0x42a074<_ZN5resip12DestroyUsage7destroyEv+0x164>
	
0x388124<_ZN5resip18DialogUsageManager15internalProcessESt8auto_ptrINS_7
MessageEE+0x14c>
	0x388a68<_ZN5resip18DialogUsageManager7processEv+0xac>
	0x316380<proc_iws_dum+0x18c>

malloc(76 bytes): 0x402227f8<_Znwj+0x6c>(/usr/lib/libstdc++.so.6)
	
0x503a10<_ZNSt8_Rb_treeIN5resip5TimerES1_St9_IdentityIS1_ESt4lessIS1_ESa
IS1_EE9_M_insertEPSt18_Rb_tree_node_baseS9_RKS1_+0x74>
	
0x503b9c<_ZNSt8_Rb_treeIN5resip5TimerES1_St9_IdentityIS1_ESt4lessIS1_ESa
IS1_EE12insert_equalERKS1_+0x68>
	
0x503128<_ZN5resip23BaseTimeLimitTimerQueue3addERKNS_5TimerE+0x110>
	
0x4fc588<_ZN5resip8SipStack6postMSERKNS_18ApplicationMessageEjPNS_15Tran
sactionUserE+0x104>
	
0x372fec<_ZN5resip18DialogUsageManager27requestMergedRequestRemovalERKNS
_16MergedRequestKeyE+0x10c>
	0x36c6a0<_ZN5resip9DialogSetD0Ev+0x6e0>
	0x42a074<_ZN5resip12DestroyUsage7destroyEv+0x164>
	
0x388124<_ZN5resip18DialogUsageManager15internalProcessESt8auto_ptrINS_7
MessageEE+0x14c>
	0x388a68<_ZN5resip18DialogUsageManager7processEv+0xac>
	0x316380<proc_iws_dum+0x18c>

malloc(76 bytes): 0x402227f8<_Znwj+0x6c>(/usr/lib/libstdc++.so.6)
	
0x503a10<_ZNSt8_Rb_treeIN5resip5TimerES1_St9_IdentityIS1_ESt4lessIS1_ESa
IS1_EE9_M_insertEPSt18_Rb_tree_node_baseS9_RKS1_+0x74>
	
0x503b9c<_ZNSt8_Rb_treeIN5resip5TimerES1_St9_IdentityIS1_ESt4lessIS1_ESa
IS1_EE12insert_equalERKS1_+0x68>
	
0x503128<_ZN5resip23BaseTimeLimitTimerQueue3addERKNS_5TimerE+0x110>
	
0x4fc588<_ZN5resip8SipStack6postMSERKNS_18ApplicationMessageEjPNS_15Tran
sactionUserE+0x104>
	
0x372654<_ZN5resip18DialogUsageManager8addTimerENS_10DumTimeout4TypeEmNS
_6HandleINS_9BaseUsageEEEjj+0xc8>
	
0x3d0258<_ZN5resip19ServerInviteSession23startRetransmit1xxTimerEv+0x130
>
	
0x3d0928<_ZN5resip19ServerInviteSession15sendProvisionalEiPc+0xf0>
	0x3d1af8<_ZN5resip19ServerInviteSession11provisionalEiPc+0xf8>
	
0x324cd4<_Z20iws_EsigTrIpNewSessAP12TERM_CONTEXTP15IWST_SIG_MSG_UC+0x160
>
	0x327e44<_Z19iws_EsigTrWaitMediaP12TERM_CONTEXTh+0x45c>
	
0x320388<_Z16iws_MedTrIpOfferP12TERM_CONTEXTP15IWST_SIG_MSG_UC+0x198>
	
0x325148<_Z18iws_EsigTraitIpMsgP13IWSST_DUM_MSGP12TERM_CONTEXTP15IWST_SI
G_MSG_UC+0x210>
	0x31c7cc<proc_iws_ctrl+0x800>

malloc(76 bytes): 0x402227f8<_Znwj+0x6c>(/usr/lib/libstdc++.so.6)
	
0x503a10<_ZNSt8_Rb_treeIN5resip5TimerES1_St9_IdentityIS1_ESt4lessIS1_ESa
IS1_EE9_M_insertEPSt18_Rb_tree_node_baseS9_RKS1_+0x74>
	
0x503b9c<_ZNSt8_Rb_treeIN5resip5TimerES1_St9_IdentityIS1_ESt4lessIS1_ESa
IS1_EE12insert_equalERKS1_+0x68>
	
0x503128<_ZN5resip23BaseTimeLimitTimerQueue3addERKNS_5TimerE+0x110>
	
0x4fc588<_ZN5resip8SipStack6postMSERKNS_18ApplicationMessageEjPNS_15Tran
sactionUserE+0x104>
	
0x372654<_ZN5resip18DialogUsageManager8addTimerENS_10DumTimeout4TypeEmNS
_6HandleINS_9BaseUsageEEEjj+0xc8>
	
0x3d0258<_ZN5resip19ServerInviteSession23startRetransmit1xxTimerEv+0x130
>
	
0x3d0928<_ZN5resip19ServerInviteSession15sendProvisionalEiPc+0xf0>
	0x3d1af8<_ZN5resip19ServerInviteSession11provisionalEiPc+0xf8>
	
0x325738<_Z17iws_EsigTrUcAlertP12TERM_CONTEXTP15IWST_SIG_MSG_UC+0x124>
	0x328564<_Z18iws_EsigTraitUcMsgP6SIGNAL+0x2bc>
	0x31c3ec<proc_iws_ctrl+0x420>

malloc(708 bytes): 0x402227f8<_Znwj+0x6c>(/usr/lib/libstdc++.so.6)
	
0x4fbda8<_ZN5resip8SipStack4sendERKNS_10SipMessageEPNS_15TransactionUser
E+0xf4>
	
0x382a8c<_ZN5resip18DialogUsageManager15outgoingProcessESt8auto_ptrINS_7
MessageEE+0xf1c>
	
0x38396c<_ZN5resip18DialogUsageManager4sendENS_9SharedPtrINS_10SipMessag
eEEE+0x5b4>
	
0x356ff8<_ZN5resip6Dialog4sendENS_9SharedPtrINS_10SipMessageEEE+0x1ec>
	
0x371800<_ZN5resip11DialogUsage4sendENS_9SharedPtrINS_10SipMessageEEE+0x
c4>
	
0x3d4d84<_ZN5resip19ServerInviteSession14dispatchCancelERKNS_10SipMessag
eE+0x388>
	
0x3d57b0<_ZN5resip19ServerInviteSession20dispatchOfferOrEarlyERKNS_10Sip
MessageE+0x138>
	0x358334<_ZN5resip6Dialog8dispatchERKNS_10SipMessageE+0xc28>
	
0x36004c<_ZN5resip9DialogSet20dispatchToAllDialogsERKNS_10SipMessageE+0x
48>
	0x366e70<_ZN5resip9DialogSet8dispatchERKNS_10SipMessageE+0x29bc>
	
0x385e50<_ZN5resip18DialogUsageManager14processRequestERKNS_10SipMessage
E+0x73c>
	
0x387d8c<_ZN5resip18DialogUsageManager15incomingProcessESt8auto_ptrINS_7
MessageEE+0x8a0>
	
0x388704<_ZN5resip18DialogUsageManager15internalProcessESt8auto_ptrINS_7
MessageEE+0x72c>
	0x388a68<_ZN5resip18DialogUsageManager7processEv+0xac>

malloc(16 bytes): 0x402227f8<_Znwj+0x6c>(/usr/lib/libstdc++.so.6)
	0x4da698<_ZN5resip10SipMessageaSERKS0_+0x220>
	0x4dad70<_ZN5resip10SipMessageC1ERKS0_+0x1a8>
	
0x4fbdbc<_ZN5resip8SipStack4sendERKNS_10SipMessageEPNS_15TransactionUser
E+0x108>
	
0x382a8c<_ZN5resip18DialogUsageManager15outgoingProcessESt8auto_ptrINS_7
MessageEE+0xf1c>
	
0x38396c<_ZN5resip18DialogUsageManager4sendENS_9SharedPtrINS_10SipMessag
eEEE+0x5b4>
	
0x356ff8<_ZN5resip6Dialog4sendENS_9SharedPtrINS_10SipMessageEEE+0x1ec>
	
0x371800<_ZN5resip11DialogUsage4sendENS_9SharedPtrINS_10SipMessageEEE+0x
c4>
	
0x3d4d84<_ZN5resip19ServerInviteSession14dispatchCancelERKNS_10SipMessag
eE+0x388>
	
0x3d57b0<_ZN5resip19ServerInviteSession20dispatchOfferOrEarlyERKNS_10Sip
MessageE+0x138>
	0x358334<_ZN5resip6Dialog8dispatchERKNS_10SipMessageE+0xc28>
	
0x36004c<_ZN5resip9DialogSet20dispatchToAllDialogsERKNS_10SipMessageE+0x
48>
	0x366e70<_ZN5resip9DialogSet8dispatchERKNS_10SipMessageE+0x29bc>
	
0x385e50<_ZN5resip18DialogUsageManager14processRequestERKNS_10SipMessage
E+0x73c>
	
0x387d8c<_ZN5resip18DialogUsageManager15incomingProcessESt8auto_ptrINS_7
MessageEE+0x8a0>

malloc(1 bytes): 0x402227f8<_Znwj+0x6c>(/usr/lib/libstdc++.so.6)
	0x5574b8<_ZN5resip20HeaderFieldValueListC1ERKS0_+0x88>
	0x4da6b0<_ZN5resip10SipMessageaSERKS0_+0x238>
	0x4dad70<_ZN5resip10SipMessageC1ERKS0_+0x1a8>
	
0x4fbdbc<_ZN5resip8SipStack4sendERKNS_10SipMessageEPNS_15TransactionUser
E+0x108>
	
0x382a8c<_ZN5resip18DialogUsageManager15outgoingProcessESt8auto_ptrINS_7
MessageEE+0xf1c>
	
0x38396c<_ZN5resip18DialogUsageManager4sendENS_9SharedPtrINS_10SipMessag
eEEE+0x5b4>
	
0x356ff8<_ZN5resip6Dialog4sendENS_9SharedPtrINS_10SipMessageEEE+0x1ec>
	
0x371800<_ZN5resip11DialogUsage4sendENS_9SharedPtrINS_10SipMessageEEE+0x
c4>
	
0x3d4d84<_ZN5resip19ServerInviteSession14dispatchCancelERKNS_10SipMessag
eE+0x388>
	
0x3d57b0<_ZN5resip19ServerInviteSession20dispatchOfferOrEarlyERKNS_10Sip
MessageE+0x138>
	0x358334<_ZN5resip6Dialog8dispatchERKNS_10SipMessageE+0xc28>
	
0x36004c<_ZN5resip9DialogSet20dispatchToAllDialogsERKNS_10SipMessageE+0x
48>
	0x366e70<_ZN5resip9DialogSet8dispatchERKNS_10SipMessageE+0x29bc>
	
0x385e50<_ZN5resip18DialogUsageManager14processRequestERKNS_10SipMessage
E+0x73c>

malloc(20 bytes): 0x402227f8<_Znwj+0x6c>(/usr/lib/libstdc++.so.6)
	0x463ec0<_ZNK5resip15ParserContainerINS_3ViaEE5cloneEv+0x68>
	0x557614<_ZN5resip20HeaderFieldValueListC1ERKS0_+0x1e4>
	0x4da6b0<_ZN5resip10SipMessageaSERKS0_+0x238>
	0x4dad70<_ZN5resip10SipMessageC1ERKS0_+0x1a8>
	
0x4fbdbc<_ZN5resip8SipStack4sendERKNS_10SipMessageEPNS_15TransactionUser
E+0x108>
	
0x382a8c<_ZN5resip18DialogUsageManager15outgoingProcessESt8auto_ptrINS_7
MessageEE+0xf1c>
	
0x38396c<_ZN5resip18DialogUsageManager4sendENS_9SharedPtrINS_10SipMessag
eEEE+0x5b4>
	
0x356ff8<_ZN5resip6Dialog4sendENS_9SharedPtrINS_10SipMessageEEE+0x1ec>
	
0x371800<_ZN5resip11DialogUsage4sendENS_9SharedPtrINS_10SipMessageEEE+0x
c4>
	
0x3d4d84<_ZN5resip19ServerInviteSession14dispatchCancelERKNS_10SipMessag
eE+0x388>
	
0x3d57b0<_ZN5resip19ServerInviteSession20dispatchOfferOrEarlyERKNS_10Sip
MessageE+0x138>
	0x358334<_ZN5resip6Dialog8dispatchERKNS_10SipMessageE+0xc28>
	
0x36004c<_ZN5resip9DialogSet20dispatchToAllDialogsERKNS_10SipMessageE+0x
48>
	0x366e70<_ZN5resip9DialogSet8dispatchERKNS_10SipMessageE+0x29bc>

malloc(188 bytes): 0x402227f8<_Znwj+0x6c>(/usr/lib/libstdc++.so.6)
	0x4393dc<_ZNK5resip3Via5cloneEv+0x68>
	0x4a8304<_ZN5resip19ParserContainerBaseC2ERKS0_+0xe0>
	0x463ed8<_ZNK5resip15ParserContainerINS_3ViaEE5cloneEv+0x80>
	0x557614<_ZN5resip20HeaderFieldValueListC1ERKS0_+0x1e4>
	0x4da6b0<_ZN5resip10SipMessageaSERKS0_+0x238>
	0x4dad70<_ZN5resip10SipMessageC1ERKS0_+0x1a8>
	
0x4fbdbc<_ZN5resip8SipStack4sendERKNS_10SipMessageEPNS_15TransactionUser
E+0x108>
	
0x382a8c<_ZN5resip18DialogUsageManager15outgoingProcessESt8auto_ptrINS_7
MessageEE+0xf1c>
	
0x38396c<_ZN5resip18DialogUsageManager4sendENS_9SharedPtrINS_10SipMessag
eEEE+0x5b4>
	
0x356ff8<_ZN5resip6Dialog4sendENS_9SharedPtrINS_10SipMessageEEE+0x1ec>
	
0x371800<_ZN5resip11DialogUsage4sendENS_9SharedPtrINS_10SipMessageEEE+0x
c4>
	
0x3d4d84<_ZN5resip19ServerInviteSession14dispatchCancelERKNS_10SipMessag
eE+0x388>
	
0x3d57b0<_ZN5resip19ServerInviteSession20dispatchOfferOrEarlyERKNS_10Sip
MessageE+0x138>
	0x358334<_ZN5resip6Dialog8dispatchERKNS_10SipMessageE+0xc28>

malloc(92 bytes): 0x402227f8<_Znwj+0x6c>(/usr/lib/libstdc++.so.6)
	0x43ca3c<_ZNK5resip15BranchParameter5cloneEv+0x68>
	
0x4a6ef8<_ZN5resip14ParserCategory18copyParametersFromERKS0_+0x48>
	0x4a725c<_ZN5resip14ParserCategoryC2ERKS0_+0xd4>
	0x4391c8<_ZN5resip3ViaC1ERKS0_+0x70>
	0x4393f0<_ZNK5resip3Via5cloneEv+0x7c>
	0x4a8304<_ZN5resip19ParserContainerBaseC2ERKS0_+0xe0>
	0x463ed8<_ZNK5resip15ParserContainerINS_3ViaEE5cloneEv+0x80>
	0x557614<_ZN5resip20HeaderFieldValueListC1ERKS0_+0x1e4>
	0x4da6b0<_ZN5resip10SipMessageaSERKS0_+0x238>
	0x4dad70<_ZN5resip10SipMessageC1ERKS0_+0x1a8>
	
0x4fbdbc<_ZN5resip8SipStack4sendERKNS_10SipMessageEPNS_15TransactionUser
E+0x108>
	
0x382a8c<_ZN5resip18DialogUsageManager15outgoingProcessESt8auto_ptrINS_7
MessageEE+0xf1c>
	
0x38396c<_ZN5resip18DialogUsageManager4sendENS_9SharedPtrINS_10SipMessag
eEEE+0x5b4>
	
0x356ff8<_ZN5resip6Dialog4sendENS_9SharedPtrINS_10SipMessageEEE+0x1ec>

malloc(4 bytes): 0x402227f8<_Znwj+0x6c>(/usr/lib/libstdc++.so.6)
	
0x33ff7c<_ZNSt6vectorIPN5resip14ParserCategoryESaIS2_EE13_M_insert_auxEN
9__gnu_cxx17__normal_iteratorIPS2_S4_EERKS2_+0x80>
	0x4a83bc<_ZN5resip19ParserContainerBaseC2ERKS0_+0x198>
	0x463ed8<_ZNK5resip15ParserContainerINS_3ViaEE5cloneEv+0x80>
	0x557614<_ZN5resip20HeaderFieldValueListC1ERKS0_+0x1e4>
	0x4da6b0<_ZN5resip10SipMessageaSERKS0_+0x238>
	0x4dad70<_ZN5resip10SipMessageC1ERKS0_+0x1a8>
	
0x4fbdbc<_ZN5resip8SipStack4sendERKNS_10SipMessageEPNS_15TransactionUser
E+0x108>
	
0x382a8c<_ZN5resip18DialogUsageManager15outgoingProcessESt8auto_ptrINS_7
MessageEE+0xf1c>
	
0x38396c<_ZN5resip18DialogUsageManager4sendENS_9SharedPtrINS_10SipMessag
eEEE+0x5b4>
	
0x356ff8<_ZN5resip6Dialog4sendENS_9SharedPtrINS_10SipMessageEEE+0x1ec>
	
0x371800<_ZN5resip11DialogUsage4sendENS_9SharedPtrINS_10SipMessageEEE+0x
c4>
	
0x3d4d84<_ZN5resip19ServerInviteSession14dispatchCancelERKNS_10SipMessag
eE+0x388>
	
0x3d57b0<_ZN5resip19ServerInviteSession20dispatchOfferOrEarlyERKNS_10Sip
MessageE+0x138>
	0x358334<_ZN5resip6Dialog8dispatchERKNS_10SipMessageE+0xc28>

malloc(4 bytes): 0x402227f8<_Znwj+0x6c>(/usr/lib/libstdc++.so.6)
	
0x33ff7c<_ZNSt6vectorIPN5resip14ParserCategoryESaIS2_EE13_M_insert_auxEN
9__gnu_cxx17__normal_iteratorIPS2_S4_EERKS2_+0x80>
	0x4a83bc<_ZN5resip19ParserContainerBaseC2ERKS0_+0x198>
	
0x4fb508<_ZNK5resip15ParserContainerINS_10StatusLineEE5cloneEv+0x80>
	0x557614<_ZN5resip20HeaderFieldValueListC1ERKS0_+0x1e4>
	0x4daa5c<_ZN5resip10SipMessageaSERKS0_+0x5e4>
	0x4dad70<_ZN5resip10SipMessageC1ERKS0_+0x1a8>
	
0x4fbdbc<_ZN5resip8SipStack4sendERKNS_10SipMessageEPNS_15TransactionUser
E+0x108>
	
0x382a8c<_ZN5resip18DialogUsageManager15outgoingProcessESt8auto_ptrINS_7
MessageEE+0xf1c>
	
0x38396c<_ZN5resip18DialogUsageManager4sendENS_9SharedPtrINS_10SipMessag
eEEE+0x5b4>
	
0x356ff8<_ZN5resip6Dialog4sendENS_9SharedPtrINS_10SipMessageEEE+0x1ec>
	
0x371800<_ZN5resip11DialogUsage4sendENS_9SharedPtrINS_10SipMessageEEE+0x
c4>
	
0x3d4d84<_ZN5resip19ServerInviteSession14dispatchCancelERKNS_10SipMessag
eE+0x388>
	
0x3d57b0<_ZN5resip19ServerInviteSession20dispatchOfferOrEarlyERKNS_10Sip
MessageE+0x138>
	0x358334<_ZN5resip6Dialog8dispatchERKNS_10SipMessageE+0xc28>


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