Comment 0 for bug 700504

Binary package hint: mono

When compiled and run, the following program crashes with SIGSEGV

public class Foo {
        static void Main() {
                new System.IO.Pipes.NamedPipeServerStream("testpipe").Disconnect();
        }
}

$ gmcs pipetest.cs
$ mono pipetest.exe
Stacktrace:

  at (wrapper managed-to-native) Mono.Unix.Native.Stdlib.fclose (intptr) <0x0005b>
  at (wrapper managed-to-native) Mono.Unix.Native.Stdlib.fclose (intptr) <0x0005b>
  at System.IO.Pipes.UnixNamedPipeServer.Disconnect () <0x0002b>
  at System.IO.Pipes.NamedPipeServerStream.Disconnect () <0x00020>
  at (wrapper remoting-invoke-with-check) System.IO.Pipes.NamedPipeServerStream.Disconnect () <0x00053>
  at Foo.Main () <0x0003b>
  at (wrapper runtime-invoke) object.runtime_invoke_void (object,intptr,intptr,intptr) <0x00049>

Native stacktrace:

        mono() [0x48563b]
        mono() [0x4d275f]
        /lib/libpthread.so.0(+0xfb40) [0x7f44c0ed4b40]
        /lib/libc.so.6(fclose+0x4) [0x7f44c09268a4]
        [0x41d4e91b]

Debug info from gdb:

Could not attach to process. If your uid matches the uid of the target
process, check the setting of /proc/sys/kernel/yama/ptrace_scope, or try
again as the root user. For more details, see /etc/sysctl.d/10-ptrace.conf
ptrace: Operation not permitted.

=================================================================
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.
=================================================================

Aborted