[Mono-bugs] [Bug 535648] New: ERROR:mini-codegen.c:1032:mono_local_regalloc: assertion failed: (reginfo [ins->sreg1].born_in > 0)

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http://bugzilla.novell.com/show_bug.cgi?id=535648


           Summary: ERROR:mini-codegen.c:1032:mono_local_regalloc:
                    assertion failed: (reginfo [ins->sreg1].born_in > 0)
    Classification: Mono
           Product: Mono: Runtime
           Version: 2.4.x
          Platform: Macintosh
        OS/Version: Mac OS X 10.5
            Status: NEW
          Severity: Blocker
          Priority: P5 - None
         Component: misc
        AssignedTo: mono-bugs at lists.ximian.com
        ReportedBy: rayan at ecasa.net
         QAContact: mono-bugs at lists.ximian.com
          Found By: Other


Description of Problem:

Latest Mono.Fuse sources, attempting to run either example filesystem, this
assertion failure happens during filesystem startup.

Steps to reproduce the problem:
1. Compile Mono.Fuse from latest source
2. Try to run example/HelloFS/hellofs per instructions


Actual Results:

**
ERROR:mini-codegen.c:1032:mono_local_regalloc: assertion failed: (reginfo
[ins->sreg1].born_in > 0)
Stacktrace:

  at (wrapper managed-to-native) object.__icall_wrapper_mono_delegate_to_ftnptr
(object) <0x00004>
  at (wrapper managed-to-native) object.__icall_wrapper_mono_delegate_to_ftnptr
(object) <0xffffffff>
  at (wrapper unknown) Mono.Fuse.Operations.StructureToPtr (object,intptr,bool)
<0xffffffff>
  at (wrapper runtime-invoke)
Mono.Fuse.Operations.runtime_invoke_void_object_intptr_byte
(object,intptr,intptr,intptr) <0xffffffff>
  at (wrapper managed-to-native)
System.Runtime.InteropServices.Marshal.StructureToPtr (object,intptr,bool)
<0x00004>
  at (wrapper managed-to-native)
System.Runtime.InteropServices.Marshal.StructureToPtr (object,intptr,bool)
<0xffffffff>
  at Mono.Fuse.FileSystem.Start () [0x00047] in
/Users/rayan/src/mono.fuse/src/Mono.Fuse/Mono.Fuse/FileSystem.cs:743
  at Mono.Fuse.Samples.HelloFS.Main (string[]) [0x00073] in
/Users/rayan/src/mono.fuse/example/HelloFS/HelloFS.cs:266
  at (wrapper runtime-invoke)
Mono.Fuse.Samples.HelloFS.runtime_invoke_void_object
(object,intptr,intptr,intptr) <0xffffffff>
/hellofs: line 8: 71058 Abort trap             
DYLD_LIBRARY_PATH="${DYLD_LIBRARY_PATH:+$DYLD_LIBRARY_PATH:}$libdir"
LD_LIBRARY_PATH="${LD_LIBRARY_PATH:+$LD_LIBRARY_PATH:}$libdir" mono --debug
"$builddir/HelloFS.exe" "$@"


Expected Results:

not that.

How often does this happen? 

Completely repeatable.

Additional Information:

Similar assertion failure reported on mono list but not apparently in bugzilla,
see http://www.mail-archive.com/mono-list@lists.ximian.com/msg29933.html, and
according to that report this did not happen with 2.3 mono.

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