login hanging

[jerrym]

I've got the infamous login hang requiring ctrl-c to finally get in.

Moved user .profile to .profile.no. Moved /etc/profile to /etc/profile.no

Just the one newly built box 11.11 with patch bundles.

As root I can su user without problem. But when su - user , sourcing env, it hangs and I have

to do cntrl-c two or three times and wait a while to get login prompt.

I've delt with problems like this before with resolve and path and nfs. But can't find anything

that would be causing this.

[Dennis Handly]

>I've got the infamous login hang requiring ctrl-c to finally get in.

Any infamous login hang that I've seen usually can't be ctrl-C.

You need to add "set -x" to your .profile to see what the last lines are.

[Naj]

Hi,

Did you try ssh under debug mode?

try this

#ssh abc.om -v

we can get somehint from there

Thanks

[jerrym]

I did the set -x and it goes through all he way to the end of /etc/profile. I even moved my .profile and the /etc/profile so they would not get sourced at all. Tried to run ssh host -v but that works find. It's just that I do not get a login prompt unless I do a ctrl-c several times. The last thing I did on the server was doing a patch commit to clear out the save dir.  Does doing a patch commit require a reboot??

[Dennis Handly]

>I even moved my .profile and the /etc/profile so they would not get sourced at all.

And it still hung?  Where is your $HISTFILE pointing to?

>I do not get a login prompt unless I do a ctrl-c several times.

Do the following (on another window) to see which process is hanging:

UNIX95=EXTENDED_PS ps -H -fu your-hung-username

>Does doing a patch commit require a reboot?

No, it just fiddles with the IPD.

[jerrym]

I do know that as root if I  su user  it does not hang. If as root I  su - user  it hangs. - its sourcing something.

Could you explain UNIX95. I vaguely remember something about that. How are you saying to do it on another window??

[Dennis Handly]

>If as root I  su - user  it hangs. - its sourcing something.

Right, you said that.  What shell are you using?  (I've been assuming sh/ksh.)

>Could you explain UNIX95. I vaguely remember something about that.

Nothing to explain, just do it.  ;-)

It enables the -H option, for a hierarchical listing of processes.

http://h30499.www3.hp.com/t5/tag/UNIX95/tg-p

>How are you saying to do it on another window?

One window is hung, do it in another, it doesn't matter if you are root or any other user.

[jerrym]

okay. ksh

I am currently hung on one window with user moorej. Im running in another window

as root.

 # UNIX95=EXTENDED_PS ps -H -fu moorej
UID        PID  PPID  C    STIME TTY          TIME CMD
moorej   19309 19307  0 16:54:24 ?           00:00 sshd: moorej@pts/0
moorej   19312 19309  0 16:54:24 pts/0       00:00   -ksh

What's interesting is that I su - phamn who is running csh and that session comes right up. What gives with ksh??

[Dennis Handly]

>What's interesting is that I su - phamn who is running csh and that session comes right up.

(When you use the scummy C shell, it's not tricky, so it can't fail like this. ;-)

I asked above, what is $HISTFILE?  For old OS versions, if it was over NFS, you could get hangs.

Do you have all your NFS, automounter, etc patches?

But if you moved aside ~/.profile , then HISTFILE wouldn't be set.

[jerrym]

Correct. no histfile

This server is a new build with all patches. Login was working before. Seems after the server was rebooted that this problem started.

I am out of tricks and possible things to check. There is no truss on this server or I would try to use that. I will have to look into loading it.