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gdbserver Can't send signals to this remote system

Ri-Ping YU
Expert 1460 points

Hi , Tiers

I'm using DM8168, with RDK3.0. I want to dubug my demo with gdbserver.

But when I type "continue" in arm-none-linux-gnueabi-gdb on host, messages as shown in file

Fullscreen 3056.gdb_host_msg_20140217_1702.txt Download 
root@YRP-ES-QD:/opt/DVRRDK/DVRRDK_03.00.00.00# arm-none-linux-gnueabi-gdb
GNU gdb (Sourcery G++ Lite 2009q1-203) 6.8.50.20081022-cvs
Copyright (C) 2008 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.  Type "show copying"
and "show warranty" for details.
This GDB was configured as "--host=i686-pc-linux-gnu --target=arm-none-linux-gnueabi".
For bug reporting instructions, please see:
<https://support.codesourcery.com/GNUToolchain/>.
(gdb) target remote 129.1.11.165:1234
Remote debugging using 129.1.11.165:1234
0x400a17b0 in ?? ()
(gdb) continue
Continuing.
Can't send signals to this remote system.  SIGALRM not sent.
Can't send signals to this remote system.  SIGALRM not sent.
Can't send signals to this remote system.  SIGALRM not sent.
Can't send signals to this remote system.  SIGALRM not sent.
Can't send signals to this remote system.  SIGALRM not sent.
Can't send signals to this remote system.  SIGALRM not sent.
Can't send signals to this remote system.  SIGALRM not sent.
Can't send signals to this remote system.  SIGALRM not sent.
Can't send signals to this remote system.  SIGALRM not sent.
Can't send signals to this remote system.  SIGALRM not sent.
Can't send signals to this remote system.  SIGALRM not sent.
Can't send signals to this remote system.  SIGALRM not sent.
Can't send signals to this remote system.  SIGALRM not sent.
Can't send signals to this remote system.  SIGALRM not sent.
Can't send signals to this remote system.  SIGALRM not sent.
Can't send signals to this remote system.  SIGALRM not sent.
Can't send signals to this remote system.  SIGALRM not sent.
Can't send signals to this remote system.  SIGALRM not sent.
Can't send signals to this remote system.  SIGALRM not sent.
Can't send signals to this remote system.  SIGALRM not sent.
Can't send signals to this remote system.  SIGALRM not sent.
Can't send signals to this remote system.  SIGALRM not sent.
Can't send signals to this remote system.  SIGALRM not sent.
Can't send signals to this remote system.  SIGALRM not sent.
Can't send signals to this remote system.  SIGALRM not sent.
Can't send signals to this remote system.  SIGALRM not sent.
Can't send signals to this remote system.  SIGALRM not sent.
Can't send signals to this remote system.  SIGALRM not sent.
Can't send signals to this remote system.  SIGALRM not sent.
Can't send signals to this remote system.  SIGALRM not sent.
Can't send signals to this remote system.  SIGALRM not sent.
Can't send signals to this remote system.  SIGALRM not sent.
Can't send signals to this remote system.  SIGALRM not sent.
Can't send signals to this remote system.  SIGALRM not sent.
Can't send signals to this remote system.  SIGALRM not sent.
---Type <return> to continue, or q <return> to quit---

I want to know what does this mean "Can't send signals to this remote system"

Best Regards!

YU Ri-Ping