Bug 156694 - "su" freezes for a while in the odd situation
"su" freezes for a while in the odd situation
Product: Fedora
Classification: Fedora
Component: pam (Show other bugs)
All Linux
medium Severity low
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Assigned To: Tomas Mraz
Depends On:
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Reported: 2005-05-03 09:53 EDT by SEKINE Tatsuo
Modified: 2007-11-30 17:11 EST (History)
0 users

See Also:
Fixed In Version: pam-0.79-7
Doc Type: Bug Fix
Doc Text:
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Clone Of:
Last Closed: 2005-05-03 10:30:32 EDT
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Verified Versions:
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oVirt Team: ---
RHEL 7.3 requirements from Atomic Host:
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Description SEKINE Tatsuo 2005-05-03 09:53:10 EDT
From Bugzilla Helper:
User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.7.6) Gecko/20050328 Fedora/1.7.6-1.2.5

Description of problem:
When I use a terminal(e.g. xterm) on X, I have to wait about 20 seconds
after I input "su" in odd situation.

The "odd" situation means that executing su 3 times without ending each
sessions, i.e.:
  fooo@bar$ su
  (input pass)
  root@bar# su fooo
  fooo@bar$ su
  ** freeze for 20 seconds **

While the terminal was freezing, I could observe the following process via
another terminal:
  /usr/X11R6/bin/xauth -f /root/.xauthXXXXXX nlist :0.0

In the same situation without X, there is no freezing, so pam_xauth may
cause this problem. 

Version-Release number of selected component (if applicable):

How reproducible:

Steps to Reproduce:
1. open terminal on X
2. type su by user foo
3. type su by user root
4. type su by user foo

Actual Results:  You have to wait for a while after password input.

Expected Results:  You don't need wait after that.

Additional info:

Actually, the extent of this bug is really small.

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