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From: "jan.kratochvil at redhat dot com" <sourceware-bugzilla@sourceware.org>
To: gdb-prs@sourceware.org
Subject: [Bug cli/13728] New: GDB crashes on catch exec -> detach
Date: Thu, 23 Feb 2012 10:18:00 -0000
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http://sourceware.org/bugzilla/show_bug.cgi?id=13728

             Bug #: 13728
           Summary: GDB crashes on catch exec -> detach
           Product: gdb
           Version: HEAD
            Status: NEW
          Severity: normal
          Priority: P2
         Component: cli
        AssignedTo: unassigned@sourceware.org
        ReportedBy: jan.kratochvil@redhat.com
    Classification: Unclassified


#include <unistd.h>
#include <assert.h>
#include <stdio.h>
int
main (void)
{
  for (;;)
    {
      int i;
      sleep (5);
      puts ("fork");
      i = fork ();
      assert (i >= 0);
      if (i == 0)
    {
      sleep (1);
      execlp ("sh", "sh", "-c", "echo x;sleep 60", NULL);
      assert (0);
    }
    }
}

gdb ~/t/forkdetach -ex 'set detach-on-fork off' -ex 'set non-stop on' -ex 'set
target-async on'
(gdb) catch exec 
Catchpoint 1 (exec)
(gdb) commands 1
Type commands for breakpoint(s) 1, one per line.
End with a line saying just "end".
>detach
>end
(gdb) r &
[New process 12872]
process 12872 is executing new program: /bin/bash

Catchpoint 1 (exec'd /bin/bash), 0x00000032a76016e0 in _start () from
/lib64/ld-linux-x86-64.so.2
warning: x
Segmentation fault

gdb-7.3.50.20110722-10.fc16.x86_64

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