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Re: Segmentation fault in su

From: Bob Proulx
Subject: Re: Segmentation fault in su
Date: Sun, 20 Nov 2005 07:05:49 -0700
User-agent: Mutt/1.5.9i

Ahamed.MLA wrote:
>   If i login as an ordinary user(admin), and try to switch to ROOT
>   user, iam getting Segmentating fault, though iam member of wheel
>   group and given trust in /etc/pam.d/su

A segmentation fault indicates access to memory that is out of bounds.
Requiring being in the wheel group or not is a local configuration
modification to the system.  The two would not seem to be related.

Since 'su' works in the default configuration I suggest returning the
system to a known working state and then making small modifications
one at a time.  If the problem returns then you know it is the last
modification that was made. 

> I am using Redhat Linux- 7.2 in my servers.

That is by today's standards quite old.  The code in shellutils has
been combined with fileutils and textutils into a single coreutils
package.  You might consider upgrading.

  ftp://ftp.gnu.org/gnu/coreutils/coreutils-5.93.tar.gz   (7.3MB)
  ftp://ftp.gnu.org/gnu/coreutils/coreutils-5.93.tar.bz2   (4.7MB)

You might want to look into the Fedora Legacy project.


> Kindly provide me a solution, as soon as possible.

This is a volunteer effort and we are unable to provide solutions on
demand.  Perhaps contracting with one of the many commercial vendors
to provide paid support would be a good model for you?  However all of
the source code is available making it is possible that you could
debug the problem yourself.


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