[Crash-utility] a strange thing

[Yang Zhiguo]

----- Original Message ----- 
From: "Dave Anderson" <anderson at redhat.com>
To: "Discussion list for crash utility usage,maintenance and development" <crash-utility at redhat.com>
Sent: Monday, April 28, 2008 8:45 PM
Subject: Re: [Crash-utility] a strange thing


> Yang Zhiguo wrote:
>> hi, all
>> 
>> When i used crash in a bash script file, a strange thing happened.
>> 
>> step 1:
>> I created a bash script file: test.sh and put the following line to the 
>> file.
>> crash -i inputfile > stdout
>> 
>> [root at rhel51rc2 gid]# echo "crash -i inputfile > stdout" > test.sh
>> 
>> step 2:
>> I ran the bash script file.
>> But i forgot to create the inputfile, so the tesh.sh process hanguped.
>> 
>> [root at rhel51rc2 gid]# chmod 777 test.sh
>> [root at rhel51rc2 gid]# ./test.sh
>> 
>> 
>> step 3:
>> I killed the process in another terminal.
>> 
>> [root at rhel51rc2 gid]# ps aux | grep crash
>> root      2290  1.3  2.6 156064 89648 pts/3    S+   16:53   0:03 crash 
>> -i inputfile
>> root      2310  0.0  0.0  61280  1792 pts/4    S+   16:56   0:00 grep crash
>> [root at rhel51rc2 gid]# kill -9 2290
>> [root at rhel51rc2 gid]#
>> 
>> step 4:
>> I continued to use the first terminal. The strange thing happend, that I 
>> could not see
>> the command(ex. ls) I inputed, but when I pressed Enter, It was 
>> executed. what's wrong?
>> 
>> [root at rhel51rc2 gid]# ./test.sh
>> ./test.sh: line 1:  2290 Killed                  crash -i inputfile >stdout
>> [root at rhel51rc2 gid]# a.out  CVS  gid.c  gid.stp  Makefile  run.sh  
>> stdout  test.sh
>> [root at rhel51rc2 gid]#
> 
> I'm not sure, but try entering "reset" in that window.  It probably is
> due to the killed crash utility leaving the tty in a raw mode.

Yes, it is OK after the "reset" inputted.
But, can we avoid this by patching the crash utility?

Best Regards,
yang


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