99145 - Memory leak of 152 bytes from 2 blocks allocated in XPCNativeScriptableSharedMap::GetNewOrUsed

Status: VERIFIED INVALID

(Core :: XPConnect, defect)

Description

[[e-mail] (gone - use [e-mail] instead)]

MLK: Memory leak of 152 bytes from 2 blocks allocated in
XPCNativeScriptableSharedMap::GetNewOrUsed(UINT,char *,XPCNativeScriptableInfo *)
        Distribution of leaked blocks
               152 bytes from 2 blocks of 76 bytes (first block: 0x042dd990) 
        Allocation location
            new(UINT)+0xc        [new.cpp:23 ip=0x002da05c]
            XPCNativeScriptableSharedMap::GetNewOrUsed(UINT,char
*,XPCNativeScriptableInfo *)+0x222
[c:\moz_src\mozilla\js\src\xpconnect\src\xpcmaps.cpp:597 ip=0x049af1b2]
           
XPCNativeScriptableInfo::Construct(XPCCallContext&,XPCNativeScriptableCreateInfo
const*)+0x3a3
[c:\moz_src\mozilla\js\src\xpconnect\src\xpcwrappednativejsops.cpp:1125
ip=0x049e7153]
           
XPCWrappedNativeProto::Init(XPCCallContext&,XPCNativeScriptableCreateInfo
const*)+0x76
[c:\moz_src\mozilla\js\src\xpconnect\src\xpcwrappednativeproto.cpp:89 ip=0x049eed66]
           
XPCWrappedNativeProto::GetNewOrUsed(XPCCallContext&,XPCWrappedNativeScope
*,nsIClassInfo *,XPCNativeScriptableCreateInfo const*,int)+0x601
[c:\moz_src\mozilla\js\src\xpconnect\src\xpcwrappednativeproto.cpp:213
ip=0x049ef906]
            nsXPConnect::GetWrappedNativePrototype(JSContext *,JSObject
*,nsIClassInfo *,nsIXPConnectJSObjectHolder * *)+0x294
[c:\moz_src\mozilla\js\src\xpconnect\src\nsXPConnect.cpp:912 ip=0x0495d934]
            nsWindowSH::GlobalResolve(nsISupports *,JSContext *,JSObject
*,JSString *,UINT,int *)+0x193e
[c:\moz_src\mozilla\dom\src\base\nsDOMClassInfo.cpp:2749 ip=0x08e9d6ce]
            nsWindowSH::NewResolve(nsIXPConnectWrappedNative *,JSContext
*,JSObject *,long,UINT,JSObject * *,int *)+0x54b
[c:\moz_src\mozilla\dom\src\base\nsDOMClassInfo.cpp:2892 ip=0x08ea0f5b]
            XPC_WN_Helper_NewResolve+0x61b
[c:\moz_src\mozilla\js\src\xpconnect\src\xpcwrappednativejsops.cpp:892
ip=0x049e9d1b]
            js_LookupProperty+0xf8e [c:\moz_src\mozilla\js\src\jsobj.c:2139
ip=0x044de91e]

Comment 1

[John Bandhauer]

Are you really going to file bugs on all the leaf nodes of leaked memory?

We have better tools to show which objects are left unreachable and which are
simply entrained by other objects. The boehm collect tools beard wrote do this.

These objects are entrained by the xpcwrappednatives we leak at shutdown time.
At least one is a result of the Components object of the global object of the
xpc safe JSContext. It is better to look at leaked xpcwrappednative objects than
to focus on these leaf obejcts.

These are onetime shutdown leaks. I don't believe that it is safe to hack in
mechanisms to delete these objects since they are structs that the JS engine may
use after xpconnect is shutdown. These can only be safely removed if we are sure
that the shared JSRuntime is dead.

Comment 2

[[e-mail] (gone - use [e-mail] instead)]

John, sorry.  Since there's a better way of finding these, marking INVALID.

Comment 3

[Phil Schwartau]

Marking Verified Invalid - 

Comment 4

[John Bandhauer]

*** Bug 111779 has been marked as a duplicate of this bug. ***

Comment 5

[John Bandhauer]

*** Bug 111780 has been marked as a duplicate of this bug. ***