[Mono-bugs] [Bug 74957][Wis] New - very strange NullRefernce (SEGV probably)

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Changed by malekith at pld-linux.org.

http://bugzilla.ximian.com/show_bug.cgi?id=74957

--- shadow/74957	2005-05-15 07:56:42.000000000 -0400
+++ shadow/74957.tmp.842	2005-05-15 07:56:42.000000000 -0400
@@ -0,0 +1,55 @@
+Bug#: 74957
+Product: Mono: Runtime
+Version: 1.1
+OS: 
+OS Details: amd64 pld linux
+Status: NEW   
+Resolution: 
+Severity: 
+Priority: Wishlist
+Component: JIT
+AssignedTo: mono-bugs at ximian.com                            
+ReportedBy: malekith at pld-linux.org               
+QAContact: mono-bugs at ximian.com
+TargetMilestone: ---
+URL: 
+Cc: 
+Summary: very strange NullRefernce (SEGV probably)
+
+Description of Problem:
+
+I have a problem with booting nemerle compiler under mono 1.1.7, amd64. A
+very tiny change (like adding a debug output, removing some file from
+compilation command line and so on) fixes the problem. It works perfectly
+under mono 1.1.7 on x86 and under ms.net (it also verifies).
+
+So I think this is some ugly JIT bug.
+
+I hate attaching this testcase, because it's utterly big, but I have failed
+to identify where the problem lies. It seems to segv from somewhere inside
+Nemerle.Compiler.Macros.quoted_expr, but I'm not sure, if it doesn't go
+somewhere deeper. Add --trace fixes the problem, so it is not helpful.
+
+
+Steps to reproduce the problem:
+1. untar the attached tar.gz file
+2. ./run.sh
+
+Actual Results:
+...
+start typing expr {
+done typing expr }
+start typing expr {
+start typing expr {
+
+Unhandled Exception: System.NullReferenceException: Object reference not
+set to an instance of an object
+
+Expected Results:
+lots more start typing { and done typing }. No null ref.
+
+How often does this happen? 
+Always.
+
+Additional Information:
+Please contact me, if you need some more info.