remote/1862: Can't remotely debug attached process

[tron dot thomas at verizon dot net]

>Number:         1862
>Category:       remote
>Synopsis:       Can't remotely debug attached process
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    unassigned
>State:          open
>Class:          change-request
>Submitter-Id:   net
>Arrival-Date:   Mon Feb 07 18:28:01 UTC 2005
>Closed-Date:
>Last-Modified:
>Originator:     Tron Thomas
>Release:        6.3
>Organization:
>Environment:
Fedora Core Linux
>Description:
The gdb debugger cannot establish a connection to the remote gdbserver if the server has attached to a running process.
>How-To-Repeat:
Build the following C++ code with debug information as program named "log2":

#include <iostream>
#include <math.h>

int main()
{
   using std::cout;
   cout << "Please enter a positive numeric value:  ";
   
   float fValue;
   std::cin >> fValue;
   
   float fResult = ::log(fValue ) / ::log(2.0f);
   
   cout << "The base 2 logarithm for that value is " << fResult << ".\n";
   
   return 0;
}

>From a terminal launch the log2 program in the background
Run "gdbserver host:1234 --attach <PID>" where PID is the process identifier for the log2 background program

>From another terminal on the same machine execute "gdb log2"
>From within gdb execute "target remote 127.0.0.1:1234"

Results:
Connect is refused from the server

Expected:
The connection should be accepted.  The connection would have been accept if the log2 program had been run directly from the gdbserver with the command such as "gdbserver host:1234 log2"
>Fix:

>Release-Note:
>Audit-Trail:
>Unformatted: