[Mono-bugs] [Bug 654460] New: Overflowing prolog buffer causing crash

bugzilla_noreply at novell.com bugzilla_noreply at novell.com
Wed Nov 17 16:35:30 EST 2010



           Summary: Overflowing prolog buffer causing crash
    Classification: Mono
           Product: Mono: Runtime
           Version: 2.8.x
          Platform: PowerPC
        OS/Version: Mac OS X 10.5
            Status: NEW
          Severity: Normal
          Priority: P5 - None
         Component: misc
        AssignedTo: mono-bugs at lists.ximian.com
        ReportedBy: avidflyer at me.com
         QAContact: mono-bugs at lists.ximian.com
          Found By: ---
           Blocker: ---

User-Agent:       Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.6; en-US;
rv: Gecko/2009060214 Firefox/3.0.11

This bug occurs at the same point in an async thread...

16:29:37 - [WATCHDOG]: Started tracking thread "AsyncLSLCmdHandlerThread" (ID
* Assertion at mini-ppc.c:5306, condition `cfg->code_len <= cfg->code_size' not


  at (wrapper managed-to-native) System.IO.MonoIO.Read
(intptr,byte[],int,int,System.IO.MonoIOError&) <0x000e8>
  at (wrapper managed-to-native) System.IO.MonoIO.Read
(intptr,byte[],int,int,System.IO.MonoIOError&) <0x000e8>
  at System.IO.FileStream.ReadData (intptr,byte[],int,int) <IL 0x00009,
  at System.IO.FileStream.ReadInternal (byte[],int,int) <IL 0x0003b, 0x000bc>
  at System.IO.FileStream.Read (byte[],int,int) <IL 0x000c2, 0x00120>
  at System.IO.StreamReader.ReadBuffer () <IL 0x00025, 0x00084>
  at System.IO.StreamReader.Read () <IL 0x0002d, 0x00058>
  at System.TermInfoDriver.ReadKeyInternal (bool&) <IL 0x000a7, 0x001a0>
  at System.TermInfoDriver.ReadKey (bool) <IL 0x00003, 0x0003c>
  at System.ConsoleDriver.ReadKey (bool) <IL 0x00006, 0x00040>
  at System.Console.ReadKey (bool) <0x00028>
  at OpenSim.Framework.Console.LocalConsole.ReadLine (string,bool,bool)
[0x00076] in
  at OpenSim.Framework.Console.CommandConsole.Prompt () [0x00000] in
  at OpenSim.Application.Main (string[]) [0x002a7] in
  at (wrapper runtime-invoke) <Module>.runtime_invoke_void_object
(object,intptr,intptr,intptr) <IL 0x00049, 0x000c4>

Native stacktrace:

    0   mono                                0x000eb3dc
mono_handle_native_sigsegv + 376
    1   mono                                0x00138dc0 mono_chain_signal + 364
    2   libSystem.B.dylib                   0x911639fc _sigtramp + 68
/tmp/mono-gdb-commands.AUakxD:1: Error in sourced command file:
unable to debug self
Abort trap

This is all the info I could glean at the outset. I could look at a richer
debug stream if that'll help

Reproducible: Always

Steps to Reproduce:
1. Run the app
2. Cause the app to start an async thread using System.Threading (probably)
3. App crashes.
Actual Results:  
The app crashes, displaying the trace from above consistently.

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