Mono 1.9.1 crashes with native stacktrace whilst compiling XSP on AMD64

[Jo Shields]

Binary package hint: mono

Mono 1.9.1 appears to contain a runtime bug which may cause crashes - one repeatable example is compiling XSP, which fails in the same place on many (but not all) AMD64 systems running Debian Sid or Ubuntu Intrepid:

      /usr/bin/mcs -r:System.Web.dll -t:library -out:codebehind1.dll codebehind1.cs
      Stacktrace:

        at Mono.CSharp.Tokenizer.Reset () <0xffffffff>
        at Mono.CSharp.Tokenizer.Reset () <0x0000d>
        at Mono.CSharp.Tokenizer..cctor () <0x000da>
        at (wrapper runtime-invoke) Mono.CSharp.Driver.runtime_invoke_void (object,intptr,intptr,intptr) <0xffffffff>
        at Mono.CSharp.CSharpParser..ctor (Mono.CSharp.SeekableStreamReader,Mono.CSharp.SourceFile,System.Collections.ArrayList) <0xffffffff>
        at Mono.CSharp.CSharpParser..ctor (Mono.CSharp.SeekableStreamReader,Mono.CSharp.SourceFile,System.Collections.ArrayList) <0x000bc>
        at Mono.CSharp.Driver.parse (Mono.CSharp.SourceFile) <0x001a9>
        at Mono.CSharp.Driver.ProcessFiles () <0x00078>
        at Mono.CSharp.Driver.MainDriver (string[]) <0x00440>
        at Mono.CSharp.Driver.Main (string[]) <0x00079>
        at (wrapper runtime-invoke) Mono.CSharp.Driver.runtime_invoke_int_string[] (object,intptr,intptr,intptr) <0xffffffff>

      Native stacktrace:

              /usr/bin/mono [0x532a3d]
              /usr/bin/mono [0x440d2d]
              /lib/libpthread.so.0 [0x2ad82c4d9a80]
              /lib/libc.so.6(memcpy+0x60) [0x2ad82c9e7f40]
              /usr/bin/mono(mono_breakpoint_clean_code+0x1b) [0x428a8b]
              /usr/bin/mono [0x4423cd]
              /usr/bin/mono [0x537592]
              [0x41973160]

      =================================================================
      Got a SIGSEGV while executing native code. This usually indicates
      a fatal error in the mono runtime or one of the native libraries
      used by your application.
      =================================================================

The attached dpatch fixes the problem.

[Jo Shields (directhex)]

The latest Mono package in Debian fixes this problem. I'll look at a fresh merge when I get a moment.

[Daniel Holbach (dholbach)]

Sebastian: can you please take a look at it?

[Jo Shields (directhex)]

2ubuntu1 fixed this. Thanks to Chris Cheney