[Bug 15381] New: CoFreeUnusedLibraries will crash COM server or cause 0x800703E6/I_RpcReceive error 0x3e6
wine-bugs at winehq.org
wine-bugs at winehq.org
Tue Sep 23 03:18:29 CDT 2008
http://bugs.winehq.org/show_bug.cgi?id=15381
Summary: CoFreeUnusedLibraries will crash COM server or cause
0x800703E6/I_RpcReceive error 0x3e6
Product: Wine
Version: 1.0.0
Platform: Other
OS/Version: other
Status: UNCONFIRMED
Severity: normal
Priority: P2
Component: ole32
AssignedTo: wine-bugs at winehq.org
ReportedBy: dmda at yandex.ru
Created an attachment (id=16230)
--> (http://bugs.winehq.org/attachment.cgi?id=16230)
demo illustrating the problem
if CoFreeUnusedLibraries is called by COM server, it will break RPC channcel
and lead to the errors
Attached is client/server code that demonstrates the problem.
If you comment out CoFreeUnusedLibraries call, it will start to work.
Steps:
-comple all 3 projects in the Workspace (Debug target is the only appropriate
for the sake of demo)
-make sure server and proxy are registered by running testserver.exe
-RegServer, regsvr32 testserverPS.dll
-run testproject.exe (the client)
Expected behaviour:
1. it will show server's message "CServer is created", click ok
2. it will show client's message "press OK when ready", click ok
3. it will show server's message passed by the client "Hello world!", click ok
4. it will show client's message "call succeeded" and client will exit
5. after roughly 6sec it will show that the server is unloaded/
Actual behaviour:
1. it will show server's message "CServer is created", click ok
2. it will show client's message "press OK when ready", click ok
3. it will show server's message passed by the client "Hello world!", click ok
4. it will dump out trouble in the console and show client's message "call
failed"
You may call CoFreeUnusedLibraries anywhere in the appartment and it will break
RPC on the server side. In some cases it will crash whole the server, like in
the demo.
Tested environment:
Fedora Core 8, 32bit, x86, wine 1.0 installed through the updates
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