Bug 3623 - Calling a native function that then calls into Managed code in another AppDomain does not restore the current appdomain upon return.
Summary: Calling a native function that then calls into Managed code in another AppDom...
Alias: None
Product: Runtime
Classification: Mono
Component: Interop ()
Version: unspecified
Hardware: All All
: --- normal
Target Milestone: ---
Assignee: Bugzilla
Depends on:
Reported: 2012-02-23 19:06 UTC by Michael Mudge
Modified: 2012-03-11 13:34 UTC (History)
5 users (show)

Is this bug a regression?: ---
Last known good build:

native code for linux .so (1.02 KB, application/x-zip-compressed)
2012-02-24 10:39 UTC, Eric Samsel
native code for linux .so (1.01 KB, application/x-zip-compressed)
2012-02-24 10:41 UTC, Eric Samsel
patch (5.59 KB, patch)
2012-02-27 19:20 UTC, Zoltan Varga

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Description Michael Mudge 2012-02-23 19:06:34 UTC
Per the C# file described here:


Managed function "OtherDomainTest" calls native from AppDomain 1.  Native makes a callback into AppDomain 0.  When the native returns to the original managed call, the current AppDomain in "OtherDomainTest" has unexpectedly switched to AppDomain 0.
Comment 1 Eric Samsel 2012-02-24 10:39:44 UTC
Created attachment 1415 [details]
native code for linux .so

I've attached the native code and build script that will allow the linked C# code to run and exhibit the bug. The build script will build and copy the .so to LD_LIBRARY_PATH so you should be able to run the C# assembly immediately.
Comment 2 Eric Samsel 2012-02-24 10:41:28 UTC
Created attachment 1416 [details]
native code for linux .so

typo in previous attachment
Comment 3 Zoltan Varga 2012-02-27 19:19:45 UTC
Please try the attached patch.
Comment 4 Zoltan Varga 2012-02-27 19:20:11 UTC
Created attachment 1429 [details]
Comment 5 Zoltan Varga 2012-03-04 14:51:35 UTC
Fixed in master. Use the attached patch for 2.10.
Comment 6 Zoltan Varga 2012-03-06 14:38:41 UTC
The fix was broken and had to be reverted.
Comment 7 Zoltan Varga 2012-03-06 14:38:52 UTC
-> reopen.
Comment 8 Zoltan Varga 2012-03-11 13:34:09 UTC
Fixed in master/2.10. The 2.10 commits are: