It means the gdb couldn't read any symbols that's why it displays ??.
The error seem to be in the executable where there will not be any
 code symbols loaded for this.

________________________________
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Shardul Kumar
Sent: Thursday, September 04, 2008 12:40 PM
To: net-snmp-users@lists.sourceforge.net
Subject: error while using gdb

Hi,
While using gdb  I have set the break pt for the function and
Going through line by line using next command after a certain line
I got the following error

(gdb) n
0x2afec870 in ?? () from /usr/syrah/lib/libnetsnmpmibs.so.15


Could any one suggest me what this out put is ? After this line
I am not able to print my previous symbol while printing  them
I am getting "no symbol in current contex" msg.


(gdb)  print ptr_nodes
No symbol "ptr_nodes" in current context.


Thanks...
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