On 02/26/2014 07:25 AM, Bret Wortman wrote:
# script /tmp/out-script
Script started, file is /tmp/out-script
# ipa help
Script done, file is /tmp/out-script
# cat /tmp/out-script

Script started on Wed 26 Feb 2014 07:18:07 AM EST
# ipa help

Script done on Wed 26 Feb 2014 07:18:14 AM EST
#

So then I tried it using script's "-c" option to see if that would make a difference, kind of like strace did:

#script -c 'ipa help' /tmp/out-script2
Script started, file is /tmp/out-script2
Usage: ipa [global-options] COMMAND {command-options]

Manage an IPA domain

Options:
:
:
See "ipa <COMMAND> --help" for more information on a specific command.
Script done, file is /tmp/out-script2
# cat /tmp/out-script2
Script started on Wed 26 Feb 2014 07:20:27 AM EST
Usage: ipa [global-options] COMMAND [command-options]

Manage an IPA domain

Options:
:
:

These colons...
Where do they come from. Can it be that something here is interpreted in strange way? Can be some kind of weird new line conversion in the output that cause the shell to go south?
Any strange settings in ENV defining terminal settings?

Can you do any python based output?

See "ipa <COMMAND> --help" for more information on a specific command.

Script done on Wed 26 Feb 2014 07:20:28 AM EST
#

It /looks/ like something is behaving differently when input comes from a tty vice when it doesn't. For grins, I did the same thing using "ipa host-find zw129.damascusgrp.com" and got basically the same result -- an empty log first, then successful completion (including expected results) using the -c option.


Bret

On 02/25/2014 08:32 PM, Bret Wortman wrote:
I'll try that. And you're right--we've tried a number of sub commands.


Bret Wortman
http://bretwortman.com/
http://twitter.com/BretWortman

On Feb 25, 2014, at 8:05 PM, Rob Crittenden<rcrit...@redhat.com>  wrote:

Dmitri Pal wrote:
On 02/25/2014 07:31 PM, Bret Wortman wrote:
Nope, running with strace lets us use the IPA command again with impunity. 
Without it, process termination.
A theory. Your data has some output that is treated as escape sequence
that crushes the shell so your connection is closed.
Do you test it with the same command all the time?

Have you tried other commands?
Can you do a user/group/host add?

Can you try other commands?
I think he said it fails with a simple ipa help, which eliminates a whole lot 
of the work we do because it does no networking in that case.

Maybe running inside a typescript will show something like weird characters.

rob

Bret Wortman
http://bretwortman.com/
http://twitter.com/BretWortman

On Feb 25, 2014, at 6:06 PM, Rob Crittenden<rcrit...@redhat.com>   wrote:

Bret Wortman wrote:
I don't know if this will be informative or not, but:

# strace -f -o /tmp/out ipa host-find zw129.damascusgrp.com
--------------
1 host matched
--------------
Host name: zw129.damascusgrp.com
   :
   :
#

I then found this pattern occurring a number of times within the (17564
line) output file:

4229  mmap(NULL, 1052672, PROT_READ|PROT_WRITE,
MAP_PRIVATE|MAP_ANONYMOUS, -1, 0<unfinished ...>
4237<... close resumed>  )             = 0
4229<... mmap resumed>  )              = 0x7f936aad2000
4229  read(13,<unfinished ...>
4237  dup2(7, 0)                        = 0
4237  dup2(10, 1)                       = 1
4237  dup2(12, 2)                       = 2
4237  close(7)                          = 0
4237  close(10)                         = 0
4237  close(12)                         = 0
4237  close(3)                          = 0
4237  close(4)                          = 0
4237  close(5)                          = 0
4237  close(6)                          = 0
4237  close(7)                          = -1 EBADF (Bad file descriptor)
4237  close(8)                          = -1 EBADF (Bad file descriptor)
4237  close(9)                          = -1 EBADF (Bad file descriptor)
4237  close(10)                         = -1 EBADF (Bad file descriptor)
:
: Continues for a thousand entries or so, then
:
4237  close(1022)                       = -1 EBADF (Bad file descriptor)
4237  close(1023)                       = -1 EBADF (Bad file descriptor)
4237  execve("/bin/keyctl", ["keyctl", "padd", "user",
"ipa_session_cookie:ad...@damascusgrp.com", "@s"], [/* 27 vars */]
<unfinished ...>
Just noise while we fork off and run another process, in this case keyctl to 
store the session cookie in the kernel keyring.

So running with strace doesn't result in the session logging out?

rob



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Thank you,
Dmitri Pal

Sr. Engineering Manager for IdM portfolio
Red Hat Inc.


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Thank you,
Dmitri Pal

Sr. Engineering Manager for IdM portfolio
Red Hat Inc.


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