[Mono-bugs] [Bug 80664][Maj] New - mono_marshal_get_runtime_invoke causes deadlock

bugzilla-daemon at bugzilla.ximian.com bugzilla-daemon at bugzilla.ximian.com
Mon Jan 29 19:06:51 EST 2007

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Changed by bmaurer at users.sf.net.


--- shadow/80664	2007-01-29 19:06:51.000000000 -0500
+++ shadow/80664.tmp.20635	2007-01-29 19:06:51.000000000 -0500
@@ -0,0 +1,28 @@
+Bug#: 80664
+Product: Mono: Runtime
+Version: 1.2
+OS Details: 
+Status: NEW   
+Priority: Major
+Component: misc
+AssignedTo: mono-bugs at ximian.com                            
+ReportedBy: bmaurer at users.sf.net               
+QAContact: mono-bugs at ximian.com
+TargetMilestone: ---
+Summary: mono_marshal_get_runtime_invoke causes deadlock
+The method mono_marshal_get_runtime_invoke acquires locks in an
+inconsistent order. First, it acquires the marshal lock, then calls
+signature_dup_add_this which calls mono_ptr_class_get and acquires the
+loader lock. after all of these are released, it then acquires the loader
+lock, then the marshal lock.
+I believe this is the cause of a deadlock I'm encountering on XSP. I can
+reproduce this deadlock on a 4 core machine with:
+ab -c20 -n10000 http://HOST:8080/1.1/handlers/empty.ashx

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