Script Hangs!


 
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# 1  
Old 01-11-2009
Script Hangs!

Hi,
I have script which is based on TCL and expect. It is written to test my code. It usually runs fine for a while and hangs after sometime.


Code snippet

set l_temp_timeout $timeout
OUTPUT_LOG2 2 >>>$expect_out(buffer)<<<
OUTPUT_LOG2 2 "Expecting...$my_prompt"
set timeout 3

expect {
$my_prompt { set l 1 }
timeout { OUTPUT_LOG2 2 $expect_out(buffer) }
}
OUTPUT_LOG2 2 "...Out of Expect $my_prompt"



My log for this code normally looks like

Retrying...
>>>^M^M
238114.0^M
^Mswitch(config-if-hsrp)#<<<
Expecting...#
...Out of Expect #



But once this hangs, it looks like


Retrying...
>>>^M^M
704802.0^M
^Mswitch(config-if-hsrp)#<<<
Expecting...#


Screen shot for this

^Mswitch(config-if-hsrp)# echo 704802.0^M
704802.0
^Mswitch(config-if-hsrp)# sh ip route vrf all^M
sh ip route vrf all

IP Route Table for VRF "default"
:
:
:
:
IP Route Table for VRF "cisco3"
'*' denotes best ucast next-hop '**' denotes best mcast next-hop
'[x/y]' denotes [preference/metric]

0.0.0.0/32, 1 ucast next-hops, 0 mcast next-hops
*via Null0, [220/0], 00:25:03, local, discard
255.255.255.255/32, 1 ucast next-hops, 0 mcast next-hops
*via sup-eth1, [0/0], 00:25:03, local



Even I noticed that the prompt did not come back. Not sure whats the problem. Even if the prompt which is "#" did not show up, at least it should have timed out.

Why is it hanging ?

Can you please help ?

Thanks
Naveen
# 2  
Old 01-11-2009
Start the script with -d option or turn on exp_internal for a large amount of trace information. Also see Debugging Expect programs
# 3  
Old 01-12-2009
Script Hangs!

As this is combo of TCL and Expect I am doing this inside the script.


# #!/usr/bin/tclsh
package require Expect

Where should I give the -d option ?

I run the script as tclsh <scripe-file-name>

Thanks
Naveen
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