Windbg: SOS.dll: !gcroot: DOMAIN(xxx):HANDLE(Pinned):Does it really mean object is pinned?

Question

The documentation on the SOS.dll Windbg extension seems sparse. After issuing a !gcroot <address>, I am getting something containing the following:

DOMAIN(XXX):HANDLE(Pinned):XXX:Root:XXX(System.Object[])->

Does "HANDLE(Pinned)" really mean there is a GCHandle of type GCHandleType.Pinned that is rooting this object?

score 4 · Answer 1 · answered Aug 13 '09 at 15:28

4

It's probably not pinned, per se, but rather is probably a static reference. Take a look here: http://blogs.msdn.com/dougste/archive/2005/11/25/497016.aspx

answered Aug 13 '09 at 15:28

Mark Sowul

score 1 · Answer 2 · answered Aug 13 '09 at 14:14

1

Yes it does mean the object is pinned. Now you have to find what is pinning the object and preventing it from being garbage collected.

answered Aug 13 '09 at 14:14

score 0 · Answer 3 · answered Aug 05 '09 at 04:19

0

Yes it does. Another possible value instead of pinned is WeakLn, which means it will be garbage collected on the next sweep.

answered Aug 05 '09 at 04:19

steve

score -1 · Answer 4 · answered Aug 05 '09 at 04:07

I know that Karel Zikmund, MSFT Moderator at http://social.msdn.microsoft.com/Forums/en-US/clr/thread/e52936b4-15c4-434f-91b9-4640df66d0c6 says "yes." But I'm looking for extra opinions, insight, etc. Thanks!

4 Answers4